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authorxuzhuoyi <[email protected]>2019-03-31 15:44:24 +0800
committerxuzhuoyi <[email protected]>2019-03-31 15:44:24 +0800
commit5d166c389d6c81fbeea3e175100d4922453991ee (patch)
treebbffc4941c0ebd9157049dd278c102a5c4de3ac8
parent459ddc3b06d5a01c4ffc4d283ae05988f7d8ff59 (diff)
[bsp][gd32e230k-start] Add GD32E230K-START BSP port
-rw-r--r--bsp/gd32e230k-start/.config288
-rw-r--r--bsp/gd32e230k-start/Kconfig72
-rw-r--r--bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/gd32e230.h212
-rw-r--r--bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/system_gd32e230.h58
-rw-r--r--bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/ARM/startup_gd32e230.s256
-rw-r--r--bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/IAR/startup_gd32e230.s303
-rw-r--r--bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/system_gd32e230.c371
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_adc.h351
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_cmp.h162
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_crc.h120
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dbg.h123
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dma.h264
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_exti.h278
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fmc.h272
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fwdgt.h119
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_gpio.h388
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_i2c.h389
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_misc.h86
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_pmu.h146
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rcu.h672
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rtc.h561
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_spi.h424
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_syscfg.h187
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_timer.h760
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_usart.h614
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_wwdgt.h88
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_adc.c844
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_cmp.c180
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_crc.c206
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dbg.c140
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dma.c562
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_exti.c254
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fmc.c814
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fwdgt.c252
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_gpio.c399
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_i2c.c797
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_misc.c142
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_pmu.c301
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rcu.c1034
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rtc.c965
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_spi.c1003
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_syscfg.c207
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_timer.c2059
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_usart.c1318
-rw-r--r--bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_wwdgt.c148
-rw-r--r--bsp/gd32e230k-start/Libraries/SConscript33
-rw-r--r--bsp/gd32e230k-start/SConscript14
-rw-r--r--bsp/gd32e230k-start/SConstruct39
-rw-r--r--bsp/gd32e230k-start/applications/SConscript11
-rw-r--r--bsp/gd32e230k-start/applications/main.c27
-rw-r--r--bsp/gd32e230k-start/drivers/SConscript33
-rw-r--r--bsp/gd32e230k-start/drivers/board.c87
-rw-r--r--bsp/gd32e230k-start/drivers/board.h47
-rw-r--r--bsp/gd32e230k-start/drivers/drv_gpio.c539
-rw-r--r--bsp/gd32e230k-start/drivers/drv_gpio.h18
-rw-r--r--bsp/gd32e230k-start/drivers/drv_i2c.c381
-rw-r--r--bsp/gd32e230k-start/drivers/drv_i2c.h29
-rw-r--r--bsp/gd32e230k-start/drivers/drv_spi.c290
-rw-r--r--bsp/gd32e230k-start/drivers/drv_spi.h19
-rw-r--r--bsp/gd32e230k-start/drivers/drv_usart.c381
-rw-r--r--bsp/gd32e230k-start/drivers/drv_usart.h19
-rw-r--r--bsp/gd32e230k-start/drivers/gd32e230_libopt.h60
-rw-r--r--bsp/gd32e230k-start/gd32_rom.icf40
-rw-r--r--bsp/gd32e230k-start/gd32_rom.ld142
-rw-r--r--bsp/gd32e230k-start/gd32_rom.sct15
-rw-r--r--bsp/gd32e230k-start/project.uvoptx1301
-rw-r--r--bsp/gd32e230k-start/project.uvprojx952
-rw-r--r--bsp/gd32e230k-start/rtconfig.h158
-rw-r--r--bsp/gd32e230k-start/rtconfig.py126
-rw-r--r--bsp/gd32e230k-start/template.uvoptx185
-rw-r--r--bsp/gd32e230k-start/template.uvprojx400
-rw-r--r--libcpu/arm/cortex-m23/SConscript23
-rw-r--r--libcpu/arm/cortex-m23/context_gcc.S210
-rw-r--r--libcpu/arm/cortex-m23/context_iar.S202
-rw-r--r--libcpu/arm/cortex-m23/context_rvds.S207
-rw-r--r--libcpu/arm/cortex-m23/cpuport.c403
76 files changed, 25580 insertions, 0 deletions
diff --git a/bsp/gd32e230k-start/.config b/bsp/gd32e230k-start/.config
new file mode 100644
index 0000000000..40cac74cf7
--- /dev/null
+++ b/bsp/gd32e230k-start/.config
@@ -0,0 +1,288 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# RT-Thread Configuration
+#
+
+#
+# RT-Thread Kernel
+#
+CONFIG_RT_NAME_MAX=8
+CONFIG_RT_ALIGN_SIZE=4
+# CONFIG_RT_THREAD_PRIORITY_8 is not set
+CONFIG_RT_THREAD_PRIORITY_32=y
+# CONFIG_RT_THREAD_PRIORITY_256 is not set
+CONFIG_RT_THREAD_PRIORITY_MAX=32
+CONFIG_RT_TICK_PER_SECOND=100
+CONFIG_RT_DEBUG=y
+CONFIG_RT_DEBUG_COLOR=y
+CONFIG_RT_USING_OVERFLOW_CHECK=y
+CONFIG_RT_DEBUG_INIT=0
+CONFIG_RT_DEBUG_THREAD=0
+CONFIG_RT_USING_HOOK=y
+CONFIG_IDLE_THREAD_STACK_SIZE=256
+# CONFIG_RT_USING_TIMER_SOFT is not set
+
+#
+# Inter-Thread communication
+#
+CONFIG_RT_USING_SEMAPHORE=y
+CONFIG_RT_USING_MUTEX=y
+CONFIG_RT_USING_EVENT=y
+CONFIG_RT_USING_MAILBOX=y
+CONFIG_RT_USING_MESSAGEQUEUE=y
+# CONFIG_RT_USING_SIGNALS is not set
+
+#
+# Memory Management
+#
+CONFIG_RT_USING_MEMPOOL=y
+# CONFIG_RT_USING_MEMHEAP is not set
+# CONFIG_RT_USING_NOHEAP is not set
+CONFIG_RT_USING_SMALL_MEM=y
+# CONFIG_RT_USING_SLAB is not set
+# CONFIG_RT_USING_MEMTRACE is not set
+CONFIG_RT_USING_HEAP=y
+
+#
+# Kernel Device Object
+#
+CONFIG_RT_USING_DEVICE=y
+# CONFIG_RT_USING_INTERRUPT_INFO is not set
+CONFIG_RT_USING_CONSOLE=y
+CONFIG_RT_CONSOLEBUF_SIZE=128
+CONFIG_RT_CONSOLE_DEVICE_NAME="uart0"
+# CONFIG_RT_USING_MODULE is not set
+
+#
+# RT-Thread Components
+#
+CONFIG_RT_USING_COMPONENTS_INIT=y
+CONFIG_RT_USING_USER_MAIN=y
+CONFIG_RT_MAIN_THREAD_STACK_SIZE=2048
+
+#
+# C++ features
+#
+# CONFIG_RT_USING_CPLUSPLUS is not set
+
+#
+# Command shell
+#
+CONFIG_RT_USING_FINSH=y
+CONFIG_FINSH_THREAD_NAME="tshell"
+CONFIG_FINSH_USING_HISTORY=y
+CONFIG_FINSH_HISTORY_LINES=5
+CONFIG_FINSH_USING_SYMTAB=y
+CONFIG_FINSH_USING_DESCRIPTION=y
+# CONFIG_FINSH_ECHO_DISABLE_DEFAULT is not set
+CONFIG_FINSH_THREAD_PRIORITY=20
+CONFIG_FINSH_THREAD_STACK_SIZE=4096
+CONFIG_FINSH_CMD_SIZE=80
+# CONFIG_FINSH_USING_AUTH is not set
+CONFIG_FINSH_USING_MSH=y
+CONFIG_FINSH_USING_MSH_DEFAULT=y
+# CONFIG_FINSH_USING_MSH_ONLY is not set
+
+#
+# Device virtual file system
+#
+CONFIG_RT_USING_DFS=y
+CONFIG_DFS_USING_WORKDIR=y
+CONFIG_DFS_FILESYSTEMS_MAX=2
+CONFIG_DFS_FILESYSTEM_TYPES_MAX=2
+CONFIG_DFS_FD_MAX=4
+CONFIG_RT_USING_DFS_ELMFAT=y
+
+#
+# elm-chan's FatFs, Generic FAT Filesystem Module
+#
+CONFIG_RT_DFS_ELM_CODE_PAGE=437
+CONFIG_RT_DFS_ELM_WORD_ACCESS=y
+CONFIG_RT_DFS_ELM_USE_LFN_0=y
+# CONFIG_RT_DFS_ELM_USE_LFN_1 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_2 is not set
+# CONFIG_RT_DFS_ELM_USE_LFN_3 is not set
+CONFIG_RT_DFS_ELM_USE_LFN=0
+CONFIG_RT_DFS_ELM_MAX_LFN=255
+CONFIG_RT_DFS_ELM_DRIVES=2
+CONFIG_RT_DFS_ELM_MAX_SECTOR_SIZE=4096
+# CONFIG_RT_DFS_ELM_USE_ERASE is not set
+CONFIG_RT_DFS_ELM_REENTRANT=y
+CONFIG_RT_USING_DFS_DEVFS=y
+# CONFIG_RT_USING_DFS_NET is not set
+# CONFIG_RT_USING_DFS_ROMFS is not set
+# CONFIG_RT_USING_DFS_RAMFS is not set
+# CONFIG_RT_USING_DFS_UFFS is not set
+# CONFIG_RT_USING_DFS_JFFS2 is not set
+# CONFIG_RT_USING_DFS_NFS is not set
+
+#
+# Device Drivers
+#
+CONFIG_RT_USING_DEVICE_IPC=y
+CONFIG_RT_USING_SERIAL=y
+CONFIG_RT_SERIAL_USING_DMA=y
+# CONFIG_RT_USING_CAN is not set
+# CONFIG_RT_USING_HWTIMER is not set
+# CONFIG_RT_USING_CPUTIME is not set
+CONFIG_RT_USING_I2C=y
+# CONFIG_RT_USING_I2C_BITOPS is not set
+CONFIG_RT_USING_PIN=y
+# CONFIG_RT_USING_MTD_NOR is not set
+# CONFIG_RT_USING_MTD_NAND is not set
+# CONFIG_RT_USING_RTC is not set
+# CONFIG_RT_USING_SDIO is not set
+CONFIG_RT_USING_SPI=y
+# CONFIG_RT_USING_SPI_MSD is not set
+CONFIG_RT_USING_SFUD=y
+# CONFIG_RT_SFUD_USING_SFDP is not set
+CONFIG_RT_SFUD_USING_FLASH_INFO_TABLE=y
+# CONFIG_RT_SFUD_DEBUG is not set
+# CONFIG_RT_USING_W25QXX is not set
+# CONFIG_RT_USING_GD is not set
+# CONFIG_RT_USING_ENC28J60 is not set
+# CONFIG_RT_USING_SPI_WIFI is not set
+# CONFIG_RT_USING_WDT is not set
+# CONFIG_RT_USING_WIFI is not set
+
+#
+# Using USB
+#
+# CONFIG_RT_USING_USB_HOST is not set
+# CONFIG_RT_USING_USB_DEVICE is not set
+
+#
+# POSIX layer and C standard library
+#
+CONFIG_RT_USING_LIBC=y
+# CONFIG_RT_USING_PTHREADS is not set
+# CONFIG_RT_USING_POSIX is not set
+# CONFIG_HAVE_SYS_SIGNALS is not set
+
+#
+# Network stack
+#
+
+#
+# light weight TCP/IP stack
+#
+# CONFIG_RT_USING_LWIP is not set
+# CONFIG_RT_USING_LWIP141 is not set
+# CONFIG_RT_USING_LWIP202 is not set
+
+#
+# Modbus master and slave stack
+#
+# CONFIG_RT_USING_MODBUS is not set
+
+#
+# VBUS(Virtual Software BUS)
+#
+# CONFIG_RT_USING_VBUS is not set
+
+#
+# Utilities
+#
+# CONFIG_RT_USING_LOGTRACE is not set
+# CONFIG_RT_USING_RYM is not set
+
+#
+# RT-Thread online packages
+#
+
+#
+# system packages
+#
+
+#
+# RT-Thread GUI Engine
+#
+# CONFIG_PKG_USING_GUIENGINE is not set
+# CONFIG_PKG_USING_LWEXT4 is not set
+# CONFIG_PKG_USING_PARTITION is not set
+# CONFIG_PKG_USING_SQLITE is not set
+# CONFIG_PKG_USING_RTI is not set
+# CONFIG_PKG_USING_LITTLEVGL2RTT is not set
+
+#
+# IoT - internet of things
+#
+# CONFIG_PKG_USING_PAHOMQTT is not set
+# CONFIG_PKG_USING_WEBCLIENT is not set
+# CONFIG_PKG_USING_MONGOOSE is not set
+# CONFIG_PKG_USING_WEBTERMINAL is not set
+# CONFIG_PKG_USING_CJSON is not set
+# CONFIG_PKG_USING_LJSON is not set
+# CONFIG_PKG_USING_EZXML is not set
+# CONFIG_PKG_USING_NANOPB is not set
+# CONFIG_PKG_USING_GAGENT_CLOUD is not set
+
+#
+# Wi-Fi
+#
+
+#
+# Marvell WiFi
+#
+# CONFIG_PKG_USING_WLANMARVELL is not set
+
+#
+# Wiced WiFi
+#
+# CONFIG_PKG_USING_WLAN_WICED is not set
+# CONFIG_PKG_USING_COAP is not set
+# CONFIG_PKG_USING_NOPOLL is not set
+# CONFIG_PKG_USING_NETUTILS is not set
+# CONFIG_PKG_USING_ONENET is not set
+
+#
+# security packages
+#
+# CONFIG_PKG_USING_MBEDTLS is not set
+# CONFIG_PKG_USING_libsodium is not set
+# CONFIG_PKG_USING_TINYCRYPT is not set
+
+#
+# language packages
+#
+# CONFIG_PKG_USING_JERRYSCRIPT is not set
+# CONFIG_PKG_USING_MICROPYTHON is not set
+
+#
+# multimedia packages
+#
+# CONFIG_PKG_USING_OPENMV is not set
+
+#
+# tools packages
+#
+# CONFIG_PKG_USING_CMBACKTRACE is not set
+# CONFIG_PKG_USING_EASYFLASH is not set
+# CONFIG_PKG_USING_EASYLOGGER is not set
+# CONFIG_PKG_USING_SYSTEMVIEW is not set
+# CONFIG_PKG_USING_IPERF is not set
+
+#
+# miscellaneous packages
+#
+# CONFIG_PKG_USING_FASTLZ is not set
+# CONFIG_PKG_USING_MINILZO is not set
+# CONFIG_PKG_USING_QUICKLZ is not set
+# CONFIG_PKG_USING_MULTIBUTTON is not set
+# CONFIG_PKG_USING_SAMPLES is not set
+# CONFIG_PKG_USING_CANFESTIVAL is not set
+
+#
+# example package: hello
+#
+# CONFIG_PKG_USING_HELLO is not set
+CONFIG_RT_USING_USART0=y
+CONFIG_RT_USING_USART1=y
+# CONFIG_RT_USING_USART2 is not set
+# CONFIG_RT_USING_UART3 is not set
+# CONFIG_RT_USING_UART4 is not set
+CONFIG_RT_USING_SPI0=y
+CONFIG_RT_USING_SPI1=y
+# CONFIG_RT_USING_SPI2 is not set
+CONFIG_RT_USING_I2C0=y
+# CONFIG_RT_USING_I2C1 is not set
diff --git a/bsp/gd32e230k-start/Kconfig b/bsp/gd32e230k-start/Kconfig
new file mode 100644
index 0000000000..e4706f4d4f
--- /dev/null
+++ b/bsp/gd32e230k-start/Kconfig
@@ -0,0 +1,72 @@
+mainmenu "RT-Thread Configuration"
+
+config BSP_DIR
+ string
+ option env="BSP_ROOT"
+ default "."
+
+config RTT_DIR
+ string
+ option env="RTT_ROOT"
+ default "../.."
+
+config PKGS_DIR
+ string
+ option env="PKGS_ROOT"
+ default "packages"
+
+source "$RTT_DIR/Kconfig"
+source "$PKGS_DIR/Kconfig"
+
+config RT_USING_USART0
+ bool "Using USART0"
+ select RT_USING_SERIAL
+ default y
+
+config RT_USING_USART1
+ bool "Using USART1"
+ select RT_USING_SERIAL
+ default n
+
+config RT_USING_USART2
+ bool "Using USART2"
+ select RT_USING_SERIAL
+ default n
+
+config RT_USING_UART3
+ bool "Using UART3"
+ select RT_USING_SERIAL
+ default n
+
+config RT_USING_UART4
+ bool "Using UART4"
+ select RT_USING_SERIAL
+ default n
+
+config RT_USING_SPI0
+ bool "Using SPI0"
+ select RT_USING_SPI
+ default y
+
+config RT_USING_SPI1
+ bool "Using SPI1"
+ select RT_USING_SPI
+ default n
+
+config RT_USING_SPI2
+ bool "Using SPI2"
+ select RT_USING_SPI
+ default n
+
+config RT_USING_I2C0
+ bool "Using I2C0"
+ select RT_USING_I2C
+ default n
+
+config RT_USING_I2C1
+ bool "Using I2C1"
+ select RT_USING_I2C
+ default n
+
+
+
diff --git a/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/gd32e230.h b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/gd32e230.h
new file mode 100644
index 0000000000..60838636f7
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/gd32e230.h
@@ -0,0 +1,212 @@
+/*!
+ \file gd32e230.h
+ \brief general definitions for GD32E230
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_H
+#define GD32E230_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* define GD32E230 */
+#if !defined (GD32E230)
+ #define GD32E230
+#endif /* define GD32E230 */
+#if !defined (GD32E230)
+ #error "Please select the target GD32E230 device used in your application (in gd32e230.h file)"
+#endif /* undefine GD32E230 tip */
+
+/* define value of high speed crystal oscillator (HXTAL) in Hz */
+#if !defined (HXTAL_VALUE)
+#define HXTAL_VALUE ((uint32_t)8000000)
+#endif /* high speed crystal oscillator value */
+
+/* define startup timeout value of high speed crystal oscillator (HXTAL) */
+#if !defined (HXTAL_STARTUP_TIMEOUT)
+#define HXTAL_STARTUP_TIMEOUT ((uint16_t)0x0800)
+#endif /* high speed crystal oscillator startup timeout */
+
+/* define value of internal 8MHz RC oscillator (IRC8M) in Hz */
+#if !defined (IRC8M_VALUE)
+#define IRC8M_VALUE ((uint32_t)8000000)
+#endif /* internal 8MHz RC oscillator value */
+
+/* define startup timeout value of internal 8MHz RC oscillator (IRC8M) */
+#if !defined (IRC8M_STARTUP_TIMEOUT)
+#define IRC8M_STARTUP_TIMEOUT ((uint16_t)0x0500)
+#endif /* internal 8MHz RC oscillator startup timeout */
+
+/* define value of internal RC oscillator for ADC in Hz */
+#if !defined (IRC28M_VALUE)
+#define IRC28M_VALUE ((uint32_t)28000000)
+#endif /* IRC28M_VALUE */
+
+#if !defined (IRC48M_VALUE)
+#define IRC48M_VALUE ((uint32_t)48000000)
+#endif /* IRC48M_VALUE */
+
+/* define value of internal 40KHz RC oscillator(IRC40K) in Hz */
+#if !defined (IRC40K_VALUE)
+#define IRC40K_VALUE ((uint32_t)40000)
+#endif /* internal 40KHz RC oscillator value */
+
+/* define value of low speed crystal oscillator (LXTAL)in Hz */
+#if !defined (LXTAL_VALUE)
+#define LXTAL_VALUE ((uint32_t)32768)
+#endif /* low speed crystal oscillator value */
+
+/* GD32E1x0 firmware library version number V1.0 */
+#define __GD32E230_STDPERIPH_VERSION_MAIN (0x01) /*!< [31:24] main version */
+#define __GD32E230_STDPERIPH_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */
+#define __GD32E230_STDPERIPH_VERSION_SUB2 (0x00) /*!< [15:8] sub2 version */
+#define __GD32E230_STDPERIPH_VERSION_RC (0x00) /*!< [7:0] release candidate */
+#define __GD32E230_STDPERIPH_VERSION ((__GD32E230_STDPERIPH_VERSION_MAIN << 24)\
+ |(__GD32E230_STDPERIPH_VERSION_SUB1 << 16)\
+ |(__GD32E230_STDPERIPH_VERSION_SUB2 << 8)\
+ |(__GD32E230_STDPERIPH_VERSION_RC))
+
+/* configuration of the Cortex-M23 processor and core peripherals */
+#define __CM23_REV 0x0100U /*!< Core revision r1p0 */
+#define __SAUREGION_PRESENT 0U /*!< SAU regions are not present */
+#define __MPU_PRESENT 0U /*!< MPU is present */
+#define __VTOR_PRESENT 1U /*!< VTOR is present */
+#define __NVIC_PRIO_BITS 2U /*!< Number of Bits used for Priority Levels */
+#define __Vendor_SysTickConfig 0U /*!< Set to 1 if different SysTick Config is used */
+
+/* define interrupt number */
+typedef enum IRQn
+{
+ /* Cortex-M23 processor exceptions numbers */
+ NonMaskableInt_IRQn = -14, /*!< non maskable interrupt */
+ HardFault_IRQn = -13, /*!< hardfault interrupt */
+
+ SVCall_IRQn = -5, /*!< sv call interrupt */
+
+ PendSV_IRQn = -2, /*!< pend sv interrupt */
+ SysTick_IRQn = -1, /*!< system tick interrupt */
+ /* interruput numbers */
+ WWDGT_IRQn = 0, /*!< window watchdog timer interrupt */
+ LVD_IRQn = 1, /*!< LVD through EXTI line detect interrupt */
+ RTC_IRQn = 2, /*!< RTC through EXTI line interrupt */
+ FMC_IRQn = 3, /*!< FMC interrupt */
+ RCU_IRQn = 4, /*!< RCU interrupt */
+ EXTI0_1_IRQn = 5, /*!< EXTI line 0 and 1 interrupts */
+ EXTI2_3_IRQn = 6, /*!< EXTI line 2 and 3 interrupts */
+ EXTI4_15_IRQn = 7, /*!< EXTI line 4 to 15 interrupts */
+ DMA_Channel0_IRQn = 9, /*!< DMA channel 0 interrupt */
+ DMA_Channel1_2_IRQn = 10, /*!< DMA channel 1 and channel 2 interrupts */
+ DMA_Channel3_4_IRQn = 11, /*!< DMA channel 3 and channel 4 interrupts */
+ ADC_CMP_IRQn = 12, /*!< ADC, CMP interrupts */
+ TIMER0_BRK_UP_TRG_COM_IRQn = 13, /*!< TIMER0 break, update, trigger and commutation interrupts */
+ TIMER0_Channel_IRQn = 14, /*!< TIMER0 channel capture compare interrupts */
+ TIMER2_IRQn = 16, /*!< TIMER2 interrupt */
+ TIMER5_IRQn = 17, /*!< TIMER5 interrupt */
+ TIMER13_IRQn = 19, /*!< TIMER13 interrupt */
+ TIMER14_IRQn = 20, /*!< TIMER14 interrupt */
+ TIMER15_IRQn = 21, /*!< TIMER15 interrupt */
+ TIMER16_IRQn = 22, /*!< TIMER16 interrupt */
+ I2C0_EV_IRQn = 23, /*!< I2C0 event interrupt */
+ I2C1_EV_IRQn = 24, /*!< I2C1 event interrupt */
+ SPI0_IRQn = 25, /*!< SPI0 interrupt */
+ SPI1_IRQn = 26, /*!< SPI1 interrupt */
+ USART0_IRQn = 27, /*!< USART0 interrupt */
+ USART1_IRQn = 28, /*!< USART1 interrupt */
+ I2C0_ER_IRQn = 32, /*!< I2C0 error interrupt */
+ I2C1_ER_IRQn = 34, /*!< I2C1 error interrupt */
+} IRQn_Type;
+
+/* includes */
+#include "core_cm23.h"
+#include "system_gd32e230.h"
+#include <stdint.h>
+
+/* enum definitions */
+typedef enum {DISABLE = 0, ENABLE = !DISABLE} EventStatus, ControlStatus;
+typedef enum {RESET = 0, SET = !RESET} FlagStatus;
+typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrStatus;
+
+/* bit operations */
+#define REG32(addr) (*(volatile uint32_t *)(uint32_t)(addr))
+#define REG16(addr) (*(volatile uint16_t *)(uint32_t)(addr))
+#define REG8(addr) (*(volatile uint8_t *)(uint32_t)(addr))
+#define BIT(x) ((uint32_t)((uint32_t)0x01U<<(x)))
+#define BITS(start, end) ((0xFFFFFFFFUL << (start)) & (0xFFFFFFFFUL >> (31U - (uint32_t)(end))))
+#define GET_BITS(regval, start, end) (((regval) & BITS((start),(end))) >> (start))
+
+/* main flash and SRAM memory map */
+#define FLASH_BASE ((uint32_t)0x08000000U) /*!< main FLASH base address */
+#define SRAM_BASE ((uint32_t)0x20000000U) /*!< SRAM base address */
+/* SRAM and peripheral base bit-band region */
+#define SRAM_BB_BASE ((uint32_t)0x22000000U) /*!< SRAM bit-band base address */
+#define PERIPH_BB_BASE ((uint32_t)0x42000000U) /*!< peripheral bit-band base address */
+/* peripheral memory map */
+#define APB1_BUS_BASE ((uint32_t)0x40000000U) /*!< apb1 base address */
+#define APB2_BUS_BASE ((uint32_t)0x40010000U) /*!< apb2 base address */
+#define AHB1_BUS_BASE ((uint32_t)0x40020000U) /*!< ahb1 base address */
+#define AHB2_BUS_BASE ((uint32_t)0x48000000U) /*!< ahb2 base address */
+/* advanced peripheral bus 1 memory map */
+#define TIMER_BASE (APB1_BUS_BASE + 0x00000000U) /*!< TIMER base address */
+#define RTC_BASE (APB1_BUS_BASE + 0x00002800U) /*!< RTC base address */
+#define WWDGT_BASE (APB1_BUS_BASE + 0x00002C00U) /*!< WWDGT base address */
+#define FWDGT_BASE (APB1_BUS_BASE + 0x00003000U) /*!< FWDGT base address */
+#define SPI_BASE (APB1_BUS_BASE + 0x00003800U) /*!< SPI base address */
+#define USART_BASE (APB1_BUS_BASE + 0x00004400U) /*!< USART base address */
+#define I2C_BASE (APB1_BUS_BASE + 0x00005400U) /*!< I2C base address */
+#define PMU_BASE (APB1_BUS_BASE + 0x00007000U) /*!< PMU base address */
+/* advanced peripheral bus 2 memory map */
+#define SYSCFG_BASE (APB2_BUS_BASE + 0x00000000U) /*!< SYSCFG base address */
+#define CMP_BASE (APB2_BUS_BASE + 0x0000001CU) /*!< CMP base address */
+#define EXTI_BASE (APB2_BUS_BASE + 0x00000400U) /*!< EXTI base address */
+#define ADC_BASE (APB2_BUS_BASE + 0x00002400U) /*!< ADC base address */
+/* advanced high performance bus 1 memory map */
+#define DMA_BASE (AHB1_BUS_BASE + 0x00000000U) /*!< DMA base address */
+#define DMA_CHANNEL_BASE (DMA_BASE + 0x00000008U) /*!< DMA channel base address */
+#define RCU_BASE (AHB1_BUS_BASE + 0x00001000U) /*!< RCU base address */
+#define FMC_BASE (AHB1_BUS_BASE + 0x00002000U) /*!< FMC base address */
+#define CRC_BASE (AHB1_BUS_BASE + 0x00003000U) /*!< CRC base address */
+/* advanced high performance bus 2 memory map */
+#define GPIO_BASE (AHB2_BUS_BASE + 0x00000000U) /*!< GPIO base address */
+/* option byte and debug memory map */
+#define OB_BASE ((uint32_t)0x1FFFF800U) /*!< OB base address */
+#define DBG_BASE ((uint32_t)0x40015800U) /*!< DBG base address */
+
+#include "gd32e230_libopt.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GD32E230_H */
diff --git a/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/system_gd32e230.h b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/system_gd32e230.h
new file mode 100644
index 0000000000..45441bd546
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Include/system_gd32e230.h
@@ -0,0 +1,58 @@
+/*!
+ \file system_gd32e230.h
+ \brief CMSIS Cortex-M23 Device Peripheral Access Layer Header File for
+ GD32E230 Device Series
+*/
+
+/* Copyright (c) 2012 ARM LIMITED
+
+ All rights reserved.
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ - Neither the name of ARM nor the names of its contributors may be used
+ to endorse or promote products derived from this software without
+ specific prior written permission.
+ *
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+ ---------------------------------------------------------------------------*/
+
+/* This file refers the CMSIS standard, some adjustments are made according to GigaDevice chips */
+
+#ifndef SYSTEM_GD32E230_H
+#define SYSTEM_GD32E230_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+/* system clock frequency (core clock) */
+extern uint32_t SystemCoreClock;
+
+/* function declarations */
+/* initialize the system and update the SystemCoreClock variable */
+extern void SystemInit (void);
+/* update the SystemCoreClock with current core clock retrieved from cpu registers */
+extern void SystemCoreClockUpdate (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYSTEM_GD32E230_H */
diff --git a/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/ARM/startup_gd32e230.s b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/ARM/startup_gd32e230.s
new file mode 100644
index 0000000000..8b001a390f
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/ARM/startup_gd32e230.s
@@ -0,0 +1,256 @@
+;/*!
+; \file startup_gd32e230.s
+; \brief start up file
+;
+; \version 2018-6-19, V1.0.0, firmware for GD32E230
+;*/
+;
+;/*
+; Copyright (c) 2018, GigaDevice Semiconductor Inc.
+;
+; All rights reserved.
+;
+; Redistribution and use in source and binary forms, with or without modification,
+;are permitted provided that the following conditions are met:
+;
+; 1. Redistributions of source code must retain the above copyright notice, this
+; list of conditions and the following disclaimer.
+; 2. Redistributions in binary form must reproduce the above copyright notice,
+; this list of conditions and the following disclaimer in the documentation
+; and/or other materials provided with the distribution.
+; 3. Neither the name of the copyright holder nor the names of its contributors
+; may be used to endorse or promote products derived from this software without
+; specific prior written permission.
+;
+; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+;AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+;WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+;IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+;INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+;NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+;PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+;WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+;ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+;OF SUCH DAMAGE.
+;*/
+
+; <h> Stack Configuration
+; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
+; </h>
+
+Stack_Size EQU 0x00000400
+
+ AREA STACK, NOINIT, READWRITE, ALIGN=3
+Stack_Mem SPACE Stack_Size
+__initial_sp
+
+
+; <h> Heap Configuration
+; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
+; </h>
+
+Heap_Size EQU 0x00000400
+
+ AREA HEAP, NOINIT, READWRITE, ALIGN=3
+__heap_base
+Heap_Mem SPACE Heap_Size
+__heap_limit
+
+ PRESERVE8
+ THUMB
+
+; /* reset Vector Mapped to at Address 0 */
+ AREA RESET, DATA, READONLY
+ EXPORT __Vectors
+ EXPORT __Vectors_End
+ EXPORT __Vectors_Size
+
+__Vectors DCD __initial_sp ; Top of Stack
+ DCD Reset_Handler ; Reset Handler
+ DCD NMI_Handler ; NMI Handler
+ DCD HardFault_Handler ; Hard Fault Handler
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD SVC_Handler ; SVCall Handler
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD PendSV_Handler ; PendSV Handler
+ DCD SysTick_Handler ; SysTick Handler
+
+; /* external interrupts handler */
+ DCD WWDGT_IRQHandler ; 16:Window Watchdog Timer
+ DCD LVD_IRQHandler ; 17:LVD through EXTI Line detect
+ DCD RTC_IRQHandler ; 18:RTC through EXTI Line
+ DCD FMC_IRQHandler ; 19:FMC
+ DCD RCU_IRQHandler ; 20:RCU
+ DCD EXTI0_1_IRQHandler ; 21:EXTI Line 0 and EXTI Line 1
+ DCD EXTI2_3_IRQHandler ; 22:EXTI Line 2 and EXTI Line 3
+ DCD EXTI4_15_IRQHandler ; 23:EXTI Line 4 to EXTI Line 15
+ DCD 0 ; Reserved
+ DCD DMA_Channel0_IRQHandler ; 25:DMA Channel 0
+ DCD DMA_Channel1_2_IRQHandler ; 26:DMA Channel 1 and DMA Channel 2
+ DCD DMA_Channel3_4_IRQHandler ; 27:DMA Channel 3 and DMA Channel 4
+ DCD ADC_CMP_IRQHandler ; 28:ADC and Comparator
+ DCD TIMER0_BRK_UP_TRG_COM_IRQHandler ; 29:TIMER0 Break,Update,Trigger and Commutation
+ DCD TIMER0_Channel_IRQHandler ; 30:TIMER0 Channel Capture Compare
+ DCD 0 ; Reserved
+ DCD TIMER2_IRQHandler ; 32:TIMER2
+ DCD TIMER5_IRQHandler ; 33:TIMER5
+ DCD 0 ; Reserved
+ DCD TIMER13_IRQHandler ; 35:TIMER13
+ DCD TIMER14_IRQHandler ; 36:TIMER14
+ DCD TIMER15_IRQHandler ; 37:TIMER15
+ DCD TIMER16_IRQHandler ; 38:TIMER16
+ DCD I2C0_EV_IRQHandler ; 39:I2C0 Event
+ DCD I2C1_EV_IRQHandler ; 40:I2C1 Event
+ DCD SPI0_IRQHandler ; 41:SPI0
+ DCD SPI1_IRQHandler ; 42:SPI1
+ DCD USART0_IRQHandler ; 43:USART0
+ DCD USART1_IRQHandler ; 44:USART1
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD I2C0_ER_IRQHandler ; 48:I2C0 Error
+ DCD 0 ; Reserved
+ DCD I2C1_ER_IRQHandler ; 50:I2C1 Error
+__Vectors_End
+
+__Vectors_Size EQU __Vectors_End - __Vectors
+
+ AREA |.text|, CODE, READONLY
+
+;/* reset Handler */
+Reset_Handler PROC
+ EXPORT Reset_Handler [WEAK]
+ IMPORT SystemInit
+ IMPORT __main
+ LDR R0, =SystemInit
+ BLX R0
+ LDR R0, =__main
+ BX R0
+ ENDP
+
+;/* dummy Exception Handlers */
+NMI_Handler\
+ PROC
+ EXPORT NMI_Handler [WEAK]
+ B .
+ ENDP
+HardFault_Handler\
+ PROC
+ EXPORT HardFault_Handler [WEAK]
+ B .
+ ENDP
+SVC_Handler\
+ PROC
+ EXPORT SVC_Handler [WEAK]
+ B .
+ ENDP
+PendSV_Handler\
+ PROC
+ EXPORT PendSV_Handler [WEAK]
+ B .
+ ENDP
+SysTick_Handler\
+ PROC
+ EXPORT SysTick_Handler [WEAK]
+ B .
+ ENDP
+
+Default_Handler PROC
+; /* external interrupts handler */
+ EXPORT WWDGT_IRQHandler [WEAK]
+ EXPORT LVD_IRQHandler [WEAK]
+ EXPORT RTC_IRQHandler [WEAK]
+ EXPORT FMC_IRQHandler [WEAK]
+ EXPORT RCU_IRQHandler [WEAK]
+ EXPORT EXTI0_1_IRQHandler [WEAK]
+ EXPORT EXTI2_3_IRQHandler [WEAK]
+ EXPORT EXTI4_15_IRQHandler [WEAK]
+ EXPORT DMA_Channel0_IRQHandler [WEAK]
+ EXPORT DMA_Channel1_2_IRQHandler [WEAK]
+ EXPORT DMA_Channel3_4_IRQHandler [WEAK]
+ EXPORT ADC_CMP_IRQHandler [WEAK]
+ EXPORT TIMER0_BRK_UP_TRG_COM_IRQHandler [WEAK]
+ EXPORT TIMER0_Channel_IRQHandler [WEAK]
+ EXPORT TIMER2_IRQHandler [WEAK]
+ EXPORT TIMER5_IRQHandler [WEAK]
+ EXPORT TIMER13_IRQHandler [WEAK]
+ EXPORT TIMER14_IRQHandler [WEAK]
+ EXPORT TIMER15_IRQHandler [WEAK]
+ EXPORT TIMER16_IRQHandler [WEAK]
+ EXPORT I2C0_EV_IRQHandler [WEAK]
+ EXPORT I2C1_EV_IRQHandler [WEAK]
+ EXPORT SPI0_IRQHandler [WEAK]
+ EXPORT SPI1_IRQHandler [WEAK]
+ EXPORT USART0_IRQHandler [WEAK]
+ EXPORT USART1_IRQHandler [WEAK]
+ EXPORT I2C0_ER_IRQHandler [WEAK]
+ EXPORT I2C1_ER_IRQHandler [WEAK]
+
+;/* external interrupts handler */
+WWDGT_IRQHandler
+LVD_IRQHandler
+RTC_IRQHandler
+FMC_IRQHandler
+RCU_IRQHandler
+EXTI0_1_IRQHandler
+EXTI2_3_IRQHandler
+EXTI4_15_IRQHandler
+DMA_Channel0_IRQHandler
+DMA_Channel1_2_IRQHandler
+DMA_Channel3_4_IRQHandler
+ADC_CMP_IRQHandler
+TIMER0_BRK_UP_TRG_COM_IRQHandler
+TIMER0_Channel_IRQHandler
+TIMER2_IRQHandler
+TIMER5_IRQHandler
+TIMER13_IRQHandler
+TIMER14_IRQHandler
+TIMER15_IRQHandler
+TIMER16_IRQHandler
+I2C0_EV_IRQHandler
+I2C1_EV_IRQHandler
+SPI0_IRQHandler
+SPI1_IRQHandler
+USART0_IRQHandler
+USART1_IRQHandler
+I2C0_ER_IRQHandler
+I2C1_ER_IRQHandler
+
+ B .
+ ENDP
+
+ ALIGN
+
+; user Initial Stack & Heap
+
+ IF :DEF:__MICROLIB
+
+ EXPORT __initial_sp
+ EXPORT __heap_base
+ EXPORT __heap_limit
+
+ ELSE
+
+ IMPORT __use_two_region_memory
+ EXPORT __user_initial_stackheap
+
+__user_initial_stackheap PROC
+ LDR R0, = Heap_Mem
+ LDR R1, =(Stack_Mem + Stack_Size)
+ LDR R2, = (Heap_Mem + Heap_Size)
+ LDR R3, = Stack_Mem
+ BX LR
+ ENDP
+
+ ALIGN
+
+ ENDIF
+
+ END
diff --git a/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/IAR/startup_gd32e230.s b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/IAR/startup_gd32e230.s
new file mode 100644
index 0000000000..a491356ce0
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/IAR/startup_gd32e230.s
@@ -0,0 +1,303 @@
+;/*!
+; \file startup_gd32e230.s
+; \brief start up file
+;
+; \version 2018-06-19, V1.0.0, firmware for GD32E230
+;*/
+;
+;/*
+; Copyright (c) 2018, GigaDevice Semiconductor Inc.
+;
+; All rights reserved.
+;
+; Redistribution and use in source and binary forms, with or without modification,
+;are permitted provided that the following conditions are met:
+;
+; 1. Redistributions of source code must retain the above copyright notice, this
+; list of conditions and the following disclaimer.
+; 2. Redistributions in binary form must reproduce the above copyright notice,
+; this list of conditions and the following disclaimer in the documentation
+; and/or other materials provided with the distribution.
+; 3. Neither the name of the copyright holder nor the names of its contributors
+; may be used to endorse or promote products derived from this software without
+; specific prior written permission.
+;
+; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+;AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+;WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+;IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+;INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+;NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+;PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+;WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+;ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+;OF SUCH DAMAGE.
+;*/
+
+ MODULE ?cstartup
+
+ ;; Forward declaration of sections.
+ SECTION CSTACK:DATA:NOROOT(3)
+
+ SECTION .intvec:CODE:NOROOT(2)
+
+ EXTERN __iar_program_start
+ EXTERN SystemInit
+ PUBLIC __vector_table
+
+ DATA
+__vector_table
+ DCD sfe(CSTACK) ; top of stack
+ DCD Reset_Handler ; Vector Number 1,Reset Handler
+
+ DCD NMI_Handler ; Vector Number 2,NMI Handler
+ DCD HardFault_Handler ; Vector Number 3,Hard Fault Handler
+ DCD MemManage_Handler ; Vector Number 4,MPU Fault Handler
+ DCD BusFault_Handler ; Vector Number 5,Bus Fault Handler
+ DCD UsageFault_Handler ; Vector Number 6,Usage Fault Handler
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD SVC_Handler ; Vector Number 11,SVCall Handler
+ DCD DebugMon_Handler ; Vector Number 12,Debug Monitor Handler
+ DCD 0 ; Reserved
+ DCD PendSV_Handler ; Vector Number 14,PendSV Handler
+ DCD SysTick_Handler ; Vector Number 15,SysTick Handler
+
+ ; External Interrupts
+ DCD WWDGT_IRQHandler ; 16:Window Watchdog Timer
+ DCD LVD_IRQHandler ; 17:LVD through EXTI Line detect
+ DCD RTC_IRQHandler ; 18:RTC through EXTI Line
+ DCD FMC_IRQHandler ; 19:FMC
+ DCD RCU_IRQHandler ; 20:RCU
+ DCD EXTI0_1_IRQHandler ; 21:EXTI Line 0 and EXTI Line 1
+ DCD EXTI2_3_IRQHandler ; 22:EXTI Line 2 and EXTI Line 3
+ DCD EXTI4_15_IRQHandler ; 23:EXTI Line 4 to EXTI Line 15
+ DCD 0 ; Reserved
+ DCD DMA_Channel0_IRQHandler ; 25:DMA Channel 0
+ DCD DMA_Channel1_2_IRQHandler ; 26:DMA Channel 1 and DMA Channel 2
+ DCD DMA_Channel3_4_IRQHandler ; 27:DMA Channel 3 and DMA Channel 4
+ DCD ADC_CMP_IRQHandler ; 28:ADC and Comparator
+ DCD TIMER0_BRK_UP_TRG_COM_IRQHandler ; 29:TIMER0 Break,Update,Trigger and Commutation
+ DCD TIMER0_Channel_IRQHandler ; 30:TIMER0 Channel Capture Compare
+ DCD 0 ; Reserved
+ DCD TIMER2_IRQHandler ; 32:TIMER2
+ DCD TIMER5_IRQHandler ; 33:TIMER5
+ DCD 0 ; Reserved
+ DCD TIMER13_IRQHandler ; 35:TIMER13
+ DCD TIMER14_IRQHandler ; 36:TIMER14
+ DCD TIMER15_IRQHandler ; 37:TIMER15
+ DCD TIMER16_IRQHandler ; 38:TIMER16
+ DCD I2C0_EV_IRQHandler ; 39:I2C0 Event
+ DCD I2C1_EV_IRQHandler ; 40:I2C1 Event
+ DCD SPI0_IRQHandler ; 41:SPI0
+ DCD SPI1_IRQHandler ; 42:SPI1
+ DCD USART0_IRQHandler ; 43:USART0
+ DCD USART1_IRQHandler ; 44:USART1
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD I2C0_ER_IRQHandler ; 48:I2C0 Error
+ DCD 0 ; Reserved
+ DCD I2C1_ER_IRQHandler ; 50:I2C1 Error
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Default interrupt handlers.
+;;
+ THUMB
+
+ PUBWEAK Reset_Handler
+ SECTION .text:CODE:NOROOT:REORDER(2)
+Reset_Handler
+ LDR R0, =SystemInit
+ BLX R0
+ LDR R0, =__iar_program_start
+ BX R0
+
+ PUBWEAK NMI_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+NMI_Handler
+ B NMI_Handler
+
+ PUBWEAK HardFault_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+HardFault_Handler
+ B HardFault_Handler
+
+ PUBWEAK MemManage_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+MemManage_Handler
+ B MemManage_Handler
+
+ PUBWEAK BusFault_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+BusFault_Handler
+ B BusFault_Handler
+
+ PUBWEAK UsageFault_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+UsageFault_Handler
+ B UsageFault_Handler
+
+ PUBWEAK SVC_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+SVC_Handler
+ B SVC_Handler
+
+ PUBWEAK DebugMon_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+DebugMon_Handler
+ B DebugMon_Handler
+
+ PUBWEAK PendSV_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+PendSV_Handler
+ B PendSV_Handler
+
+ PUBWEAK SysTick_Handler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+SysTick_Handler
+ B SysTick_Handler
+
+ PUBWEAK WWDGT_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+WWDGT_IRQHandler
+ B WWDGT_IRQHandler
+
+ PUBWEAK LVD_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+LVD_IRQHandler
+ B LVD_IRQHandler
+
+ PUBWEAK RTC_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+RTC_IRQHandler
+ B RTC_IRQHandler
+
+ PUBWEAK FMC_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+FMC_IRQHandler
+ B FMC_IRQHandler
+
+ PUBWEAK RCU_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+RCU_IRQHandler
+ B RCU_IRQHandler
+
+ PUBWEAK EXTI0_1_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+EXTI0_1_IRQHandler
+ B EXTI0_1_IRQHandler
+
+ PUBWEAK EXTI2_3_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+EXTI2_3_IRQHandler
+ B EXTI2_3_IRQHandler
+
+ PUBWEAK EXTI4_15_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+EXTI4_15_IRQHandler
+ B EXTI4_15_IRQHandler
+
+ PUBWEAK DMA_Channel0_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+DMA_Channel0_IRQHandler
+ B DMA_Channel0_IRQHandler
+
+ PUBWEAK DMA_Channel1_2_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+DMA_Channel1_2_IRQHandler
+ B DMA_Channel1_2_IRQHandler
+
+ PUBWEAK DMA_Channel3_4_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+DMA_Channel3_4_IRQHandler
+ B DMA_Channel3_4_IRQHandler
+
+ PUBWEAK ADC_CMP_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+ADC_CMP_IRQHandler
+ B ADC_CMP_IRQHandler
+
+ PUBWEAK TIMER0_BRK_UP_TRG_COM_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER0_BRK_UP_TRG_COM_IRQHandler
+ B TIMER0_BRK_UP_TRG_COM_IRQHandler
+
+ PUBWEAK TIMER0_Channel_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER0_Channel_IRQHandler
+ B TIMER0_Channel_IRQHandler
+
+ PUBWEAK TIMER2_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER2_IRQHandler
+ B TIMER2_IRQHandler
+
+ PUBWEAK TIMER5_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER5_IRQHandler
+ B TIMER5_IRQHandler
+
+ PUBWEAK TIMER13_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER13_IRQHandler
+ B TIMER13_IRQHandler
+
+ PUBWEAK TIMER14_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER14_IRQHandler
+ B TIMER14_IRQHandler
+
+ PUBWEAK TIMER15_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER15_IRQHandler
+ B TIMER15_IRQHandler
+
+ PUBWEAK TIMER16_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+TIMER16_IRQHandler
+ B TIMER16_IRQHandler
+
+ PUBWEAK I2C0_EV_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+I2C0_EV_IRQHandler
+ B I2C0_EV_IRQHandler
+
+ PUBWEAK I2C1_EV_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+I2C1_EV_IRQHandler
+ B I2C1_EV_IRQHandler
+
+ PUBWEAK SPI0_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+SPI0_IRQHandler
+ B SPI0_IRQHandler
+
+ PUBWEAK SPI1_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+SPI1_IRQHandler
+ B SPI1_IRQHandler
+
+ PUBWEAK USART0_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+USART0_IRQHandler
+ B USART0_IRQHandler
+
+ PUBWEAK USART1_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+USART1_IRQHandler
+ B USART1_IRQHandler
+
+ PUBWEAK I2C0_ER_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+I2C0_ER_IRQHandler
+ B I2C0_ER_IRQHandler
+
+ PUBWEAK I2C1_ER_IRQHandler
+ SECTION .text:CODE:NOROOT:REORDER(1)
+I2C1_ER_IRQHandler
+ B I2C1_ER_IRQHandler
+ END \ No newline at end of file
diff --git a/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/system_gd32e230.c b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/system_gd32e230.c
new file mode 100644
index 0000000000..a4768d181f
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/CMSIS/GD/GD32E230/Source/system_gd32e230.c
@@ -0,0 +1,371 @@
+/*!
+ \file system_gd32e230.c
+ \brief CMSIS Cortex-M23 Device Peripheral Access Layer Source File for
+ GD32E1x0 Device Series
+*/
+
+/* Copyright (c) 2012 ARM LIMITED
+
+ All rights reserved.
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ - Neither the name of ARM nor the names of its contributors may be used
+ to endorse or promote products derived from this software without
+ specific prior written permission.
+ *
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+ ---------------------------------------------------------------------------*/
+
+/* This file refers the CMSIS standard, some adjustments are made according to GigaDevice chips */
+
+#include "gd32e230.h"
+
+/* system frequency define */
+#define __IRC8M (IRC8M_VALUE) /* internal 8 MHz RC oscillator frequency */
+#define __HXTAL (HXTAL_VALUE) /* high speed crystal oscillator frequency */
+#define __SYS_OSC_CLK (__IRC8M) /* main oscillator frequency */
+
+#define VECT_TAB_OFFSET (uint32_t)0x00 /* vector table base offset */
+
+/* select a system clock by uncommenting the following line */
+//#define __SYSTEM_CLOCK_8M_HXTAL (__HXTAL)
+//#define __SYSTEM_CLOCK_8M_IRC8M (__IRC8M)
+#define __SYSTEM_CLOCK_72M_PLL_HXTAL (uint32_t)(72000000)
+//#define __SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2 (uint32_t)(72000000)
+
+#define SEL_IRC8M 0x00
+#define SEL_HXTAL 0x01
+#define SEL_PLL 0x02
+
+/* set the system clock frequency and declare the system clock configuration function */
+#ifdef __SYSTEM_CLOCK_8M_HXTAL
+uint32_t SystemCoreClock = __SYSTEM_CLOCK_8M_HXTAL;
+static void system_clock_8m_hxtal(void);
+
+#elif defined (__SYSTEM_CLOCK_72M_PLL_HXTAL)
+uint32_t SystemCoreClock = __SYSTEM_CLOCK_72M_PLL_HXTAL;
+static void system_clock_72m_hxtal(void);
+
+#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2)
+uint32_t SystemCoreClock = __SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2;
+static void system_clock_72m_irc8m(void);
+
+#else
+uint32_t SystemCoreClock = __SYSTEM_CLOCK_8M_IRC8M;
+static void system_clock_8m_irc8m(void);
+#endif /* __SYSTEM_CLOCK_8M_HXTAL */
+
+/* configure the system clock */
+static void system_clock_config(void);
+
+/*!
+ \brief setup the microcontroller system, initialize the system
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void SystemInit (void)
+{
+ /* enable IRC8M */
+ RCU_CTL0 |= RCU_CTL0_IRC8MEN;
+ while(0U == (RCU_CTL0 & RCU_CTL0_IRC8MSTB)){
+ }
+ /* reset RCU */
+ RCU_CFG0 &= ~(RCU_CFG0_SCS | RCU_CFG0_AHBPSC | RCU_CFG0_APB1PSC | RCU_CFG0_APB2PSC |\
+ RCU_CFG0_ADCPSC | RCU_CFG0_CKOUTSEL | RCU_CFG0_CKOUTDIV | RCU_CFG0_PLLDV);
+ RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF | RCU_CFG0_PLLMF4 | RCU_CFG0_PLLDV);
+ RCU_CTL0 &= ~(RCU_CTL0_HXTALEN | RCU_CTL0_CKMEN | RCU_CTL0_PLLEN | RCU_CTL0_HXTALBPS);
+ RCU_CFG1 &= ~(RCU_CFG1_PREDV);
+ RCU_CFG2 &= ~(RCU_CFG2_USART0SEL | RCU_CFG2_ADCSEL);
+ RCU_CFG2 &= ~RCU_CFG2_IRC28MDIV;
+ RCU_CFG2 &= ~RCU_CFG2_ADCPSC2;
+ RCU_CTL1 &= ~RCU_CTL1_IRC28MEN;
+ RCU_INT = 0x00000000U;
+
+ /* configure system clock */
+ system_clock_config();
+
+#ifdef VECT_TAB_SRAM
+ nvic_vector_table_set(NVIC_VECTTAB_RAM,VECT_TAB_OFFSET);
+#else
+ nvic_vector_table_set(NVIC_VECTTAB_FLASH,VECT_TAB_OFFSET);
+#endif
+}
+
+/*!
+ \brief configure the system clock
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+static void system_clock_config(void)
+{
+#ifdef __SYSTEM_CLOCK_8M_HXTAL
+ system_clock_8m_hxtal();
+#elif defined (__SYSTEM_CLOCK_72M_PLL_HXTAL)
+ system_clock_72m_hxtal();
+#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2)
+ system_clock_72m_irc8m();
+#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC48M_DIV2)
+ system_clock_72m_irc48m();
+#else
+ system_clock_8m_irc8m();
+#endif /* __SYSTEM_CLOCK_8M_HXTAL */
+}
+
+#ifdef __SYSTEM_CLOCK_8M_HXTAL
+/*!
+ \brief configure the system clock to 8M by HXTAL
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+static void system_clock_8m_hxtal(void)
+{
+ uint32_t timeout = 0U;
+ uint32_t stab_flag = 0U;
+
+ /* enable HXTAL */
+ RCU_CTL0 |= RCU_CTL0_HXTALEN;
+
+ /* wait until HXTAL is stable or the startup time is longer than HXTAL_STARTUP_TIMEOUT */
+ do{
+ timeout++;
+ stab_flag = (RCU_CTL0 & RCU_CTL0_HXTALSTB);
+ }
+ while((0U == stab_flag) && (HXTAL_STARTUP_TIMEOUT != timeout));
+ /* if fail */
+ if(0U == (RCU_CTL0 & RCU_CTL0_HXTALSTB)){
+ while(1){
+ }
+ }
+
+ /* HXTAL is stable */
+ /* AHB = SYSCLK */
+ RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
+ /* APB2 = AHB */
+ RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
+ /* APB1 = AHB */
+ RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
+
+ /* select HXTAL as system clock */
+ RCU_CFG0 &= ~RCU_CFG0_SCS;
+ RCU_CFG0 |= RCU_CKSYSSRC_HXTAL;
+
+ /* wait until HXTAL is selected as system clock */
+ while(0U == (RCU_CFG0 & RCU_SCSS_HXTAL)){
+ }
+}
+
+#elif defined (__SYSTEM_CLOCK_72M_PLL_HXTAL)
+/*!
+ \brief configure the system clock to 72M by PLL which selects HXTAL as its clock source
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+static void system_clock_72m_hxtal(void)
+{
+ uint32_t timeout = 0U;
+ uint32_t stab_flag = 0U;
+
+ /* enable HXTAL */
+ RCU_CTL0 |= RCU_CTL0_HXTALEN;
+
+ /* wait until HXTAL is stable or the startup time is longer than HXTAL_STARTUP_TIMEOUT */
+ do{
+ timeout++;
+ stab_flag = (RCU_CTL0 & RCU_CTL0_HXTALSTB);
+ }
+ while((0U == stab_flag) && (HXTAL_STARTUP_TIMEOUT != timeout));
+ /* if fail */
+ if(0U == (RCU_CTL0 & RCU_CTL0_HXTALSTB)){
+ while(1){
+ }
+ }
+
+ FMC_WS &= ~FMC_WS_WSCNT;
+ FMC_WS |= WS_WSCNT_2;
+
+ /* HXTAL is stable */
+ /* AHB = SYSCLK */
+ RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
+ /* APB2 = AHB */
+ RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
+ /* APB1 = AHB */
+ RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
+
+ /* PLL = HXTAL * 9 = 72 MHz */
+ RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF | RCU_CFG0_PLLDV);
+ RCU_CFG0 |= (RCU_PLLSRC_HXTAL | RCU_PLL_MUL9);
+
+ /* enable PLL */
+ RCU_CTL0 |= RCU_CTL0_PLLEN;
+
+ /* wait until PLL is stable */
+ while(0U == (RCU_CTL0 & RCU_CTL0_PLLSTB)){
+ }
+
+ /* select PLL as system clock */
+ RCU_CFG0 &= ~RCU_CFG0_SCS;
+ RCU_CFG0 |= RCU_CKSYSSRC_PLL;
+
+ /* wait until PLL is selected as system clock */
+ while(0U == (RCU_CFG0 & RCU_SCSS_PLL)){
+ }
+}
+
+#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2)
+/*!
+ \brief configure the system clock to 72M by PLL which selects IRC8M/2 as its clock source
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+static void system_clock_72m_irc8m(void)
+{
+ uint32_t timeout = 0U;
+ uint32_t stab_flag = 0U;
+
+ /* enable IRC8M */
+ RCU_CTL0 |= RCU_CTL0_IRC8MEN;
+
+ /* wait until IRC8M is stable or the startup time is longer than IRC8M_STARTUP_TIMEOUT */
+ do{
+ timeout++;
+ stab_flag = (RCU_CTL0 & RCU_CTL0_IRC8MSTB);
+ }
+ while((0U == stab_flag) && (IRC8M_STARTUP_TIMEOUT != timeout));
+
+ /* if fail */
+ if(0U == (RCU_CTL0 & RCU_CTL0_IRC8MSTB)){
+ while(1){
+ }
+ }
+
+ FMC_WS &= ~FMC_WS_WSCNT;
+ FMC_WS |= WS_WSCNT_2;
+
+ /* AHB = SYSCLK */
+ RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
+ /* APB2 = AHB */
+ RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
+ /* APB1 = AHB */
+ RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
+ /* PLL = (IRC8M/2) * 18 = 72 MHz */
+ RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF);
+ RCU_CFG0 |= (RCU_PLLSRC_IRC8M_DIV2 | RCU_PLL_MUL18);
+
+ /* enable PLL */
+ RCU_CTL0 |= RCU_CTL0_PLLEN;
+
+ /* wait until PLL is stable */
+ while(0U == (RCU_CTL0 & RCU_CTL0_PLLSTB)){
+ }
+
+ /* select PLL as system clock */
+ RCU_CFG0 &= ~RCU_CFG0_SCS;
+ RCU_CFG0 |= RCU_CKSYSSRC_PLL;
+
+ /* wait until PLL is selected as system clock */
+ while(0U == (RCU_CFG0 & RCU_SCSS_PLL)){
+ }
+}
+
+#else
+/*!
+ \brief configure the system clock to 8M by IRC8M
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+static void system_clock_8m_irc8m(void)
+{
+ /* AHB = SYSCLK */
+ RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
+ /* APB2 = AHB */
+ RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
+ /* APB1 = AHB */
+ RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
+
+ /* select IRC8M as system clock */
+ RCU_CFG0 &= ~RCU_CFG0_SCS;
+ RCU_CFG0 |= RCU_CKSYSSRC_IRC8M;
+
+ /* wait until IRC8M is selected as system clock */
+ while(0U != (RCU_CFG0 & RCU_SCSS_IRC8M)){
+ }
+}
+#endif /* __SYSTEM_CLOCK_8M_HXTAL */
+
+/*!
+ \brief update the SystemCoreClock with current core clock retrieved from cpu registers
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void SystemCoreClockUpdate (void)
+{
+ uint32_t sws = 0U;
+ uint32_t pllmf = 0U, pllmf4 = 0U, pllsel = 0U, prediv = 0U, idx = 0U, clk_exp = 0U;
+ /* exponent of AHB clock divider */
+ const uint8_t ahb_exp[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+
+ sws = GET_BITS(RCU_CFG0, 2, 3);
+ switch(sws){
+ /* IRC8M is selected as CK_SYS */
+ case SEL_IRC8M:
+ SystemCoreClock = IRC8M_VALUE;
+ break;
+ /* HXTAL is selected as CK_SYS */
+ case SEL_HXTAL:
+ SystemCoreClock = HXTAL_VALUE;
+ break;
+ /* PLL is selected as CK_SYS */
+ case SEL_PLL:
+ /* get the value of PLLMF[3:0] */
+ pllmf = GET_BITS(RCU_CFG0, 18, 21);
+ pllmf4 = GET_BITS(RCU_CFG0, 27, 27);
+ /* high 16 bits */
+ if(1U == pllmf4){
+ pllmf += 17U;
+ }else if(15U == pllmf){
+ pllmf = 16U;
+ }else{
+ pllmf += 2U;
+ }
+
+ /* PLL clock source selection, HXTAL or IRC8M/2 */
+ pllsel = GET_BITS(RCU_CFG0, 16, 16);
+ if(0U != pllsel){
+ prediv = (GET_BITS(RCU_CFG1, 0, 3) + 1U);
+ SystemCoreClock = (HXTAL_VALUE / prediv) * pllmf;
+ }else{
+ SystemCoreClock = (IRC8M_VALUE >> 1) * pllmf;
+ }
+ break;
+ /* IRC8M is selected as CK_SYS */
+ default:
+ SystemCoreClock = IRC8M_VALUE;
+ break;
+ }
+ /* calculate AHB clock frequency */
+ idx = GET_BITS(RCU_CFG0, 4, 7);
+ clk_exp = ahb_exp[idx];
+ SystemCoreClock >>= clk_exp;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_adc.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_adc.h
new file mode 100644
index 0000000000..2ffbec390e
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_adc.h
@@ -0,0 +1,351 @@
+/*!
+ \file gd32e230_adc.h
+ \brief definitions for the ADC
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_ADC_H
+#define GD32E230_ADC_H
+
+#include "gd32e230.h"
+
+/* ADC definitions */
+#define ADC ADC_BASE
+
+/* registers definitions */
+#define ADC_STAT REG32(ADC + 0x00U) /*!< ADC status register */
+#define ADC_CTL0 REG32(ADC + 0x04U) /*!< ADC control register 0 */
+#define ADC_CTL1 REG32(ADC + 0x08U) /*!< ADC control register 1 */
+#define ADC_SAMPT0 REG32(ADC + 0x0CU) /*!< ADC sampling time register 0 */
+#define ADC_SAMPT1 REG32(ADC + 0x10U) /*!< ADC sampling time register 1 */
+#define ADC_IOFF0 REG32(ADC + 0x14U) /*!< ADC inserted channel data offset register 0 */
+#define ADC_IOFF1 REG32(ADC + 0x18U) /*!< ADC inserted channel data offset register 1 */
+#define ADC_IOFF2 REG32(ADC + 0x1CU) /*!< ADC inserted channel data offset register 2 */
+#define ADC_IOFF3 REG32(ADC + 0x20U) /*!< ADC inserted channel data offset register 3 */
+#define ADC_WDHT REG32(ADC + 0x24U) /*!< ADC watchdog high threshold register */
+#define ADC_WDLT REG32(ADC + 0x28U) /*!< ADC watchdog low threshold register */
+#define ADC_RSQ0 REG32(ADC + 0x2CU) /*!< ADC regular sequence register 0 */
+#define ADC_RSQ1 REG32(ADC + 0x30U) /*!< ADC regular sequence register 1 */
+#define ADC_RSQ2 REG32(ADC + 0x34U) /*!< ADC regular sequence register 2 */
+#define ADC_ISQ REG32(ADC + 0x38U) /*!< ADC inserted sequence register */
+#define ADC_IDATA0 REG32(ADC + 0x3CU) /*!< ADC inserted data register 0 */
+#define ADC_IDATA1 REG32(ADC + 0x40U) /*!< ADC inserted data register 1 */
+#define ADC_IDATA2 REG32(ADC + 0x44U) /*!< ADC inserted data register 2 */
+#define ADC_IDATA3 REG32(ADC + 0x48U) /*!< ADC inserted data register 3 */
+#define ADC_RDATA REG32(ADC + 0x4CU) /*!< ADC regular data register */
+#define ADC_OVSAMPCTL REG32(ADC + 0x80U) /*!< ADC oversampling control register */
+
+/* bits definitions */
+/* ADC_STAT */
+#define ADC_STAT_WDE BIT(0) /*!< analog watchdog event flag */
+#define ADC_STAT_EOC BIT(1) /*!< end of conversion flag */
+#define ADC_STAT_EOIC BIT(2) /*!< inserted channel end of conversion flag */
+#define ADC_STAT_STIC BIT(3) /*!< inserted channel start flag */
+#define ADC_STAT_STRC BIT(4) /*!< regular channel start flag */
+
+/* ADC_CTL0 */
+#define ADC_CTL0_WDCHSEL BITS(0,4) /*!< analog watchdog channel select bits */
+#define ADC_CTL0_EOCIE BIT(5) /*!< interrupt enable for EOC */
+#define ADC_CTL0_WDEIE BIT(6) /*!< analog watchdog interrupt enable */
+#define ADC_CTL0_EOICIE BIT(7) /*!< interrupt enable for inserted channels */
+#define ADC_CTL0_SM BIT(8) /*!< scan mode */
+#define ADC_CTL0_WDSC BIT(9) /*!< when in scan mode, analog watchdog is effective on a single channel */
+#define ADC_CTL0_ICA BIT(10) /*!< automatic inserted group conversion */
+#define ADC_CTL0_DISRC BIT(11) /*!< discontinuous mode on regular channels */
+#define ADC_CTL0_DISIC BIT(12) /*!< discontinuous mode on inserted channels */
+#define ADC_CTL0_DISNUM BITS(13,15) /*!< discontinuous mode channel count */
+#define ADC_CTL0_IWDEN BIT(22) /*!< analog watchdog enable on inserted channels */
+#define ADC_CTL0_RWDEN BIT(23) /*!< analog watchdog enable on regular channels */
+#define ADC_CTL0_DRES BITS(24,25) /*!< ADC data resolution */
+
+/* ADC_CTL1 */
+#define ADC_CTL1_ADCON BIT(0) /*!< ADC converter on */
+#define ADC_CTL1_CTN BIT(1) /*!< continuous conversion */
+#define ADC_CTL1_CLB BIT(2) /*!< ADC calibration */
+#define ADC_CTL1_RSTCLB BIT(3) /*!< reset calibration */
+#define ADC_CTL1_DMA BIT(8) /*!< direct memory access mode */
+#define ADC_CTL1_DAL BIT(11) /*!< data alignment */
+#define ADC_CTL1_ETSIC BITS(12,14) /*!< external trigger select for inserted channel */
+#define ADC_CTL1_ETEIC BIT(15) /*!< external trigger enable for inserted channel */
+#define ADC_CTL1_ETSRC BITS(17,19) /*!< external trigger select for regular channel */
+#define ADC_CTL1_ETERC BIT(20) /*!< external trigger enable for regular channel */
+#define ADC_CTL1_SWICST BIT(21) /*!< start on inserted channel */
+#define ADC_CTL1_SWRCST BIT(22) /*!< start on regular channel */
+#define ADC_CTL1_TSVREN BIT(23) /*!< enable channel 16 and 17 */
+
+/* ADC_SAMPTx x=0,1 */
+#define ADC_SAMPTX_SPTN BITS(0,2) /*!< channel n(n=0..9,16 and 17) sample time selection */
+
+/* ADC_IOFFx x=0..3 */
+#define ADC_IOFFX_IOFF BITS(0,11) /*!< data offset for inserted channel x */
+
+/* ADC_WDHT */
+#define ADC_WDHT_WDHT BITS(0,11) /*!< analog watchdog high threshold */
+
+/* ADC_WDLT */
+#define ADC_WDLT_WDLT BITS(0,11) /*!< analog watchdog low threshold */
+
+/* ADC_RSQx x=0..2 */
+#define ADC_RSQX_RSQN BITS(0,4) /*!< n conversion in regular sequence */
+#define ADC_RSQ0_RL BITS(20,23) /*!< regular channel sequence length */
+
+/* ADC_ISQ */
+#define ADC_ISQ_ISQN BITS(0,4) /*!< n conversion in regular sequence */
+#define ADC_ISQ_IL BITS(20,21) /*!< inserted sequence length */
+
+/* ADC_IDATAx x=0..3*/
+#define ADC_IDATAX_IDATAN BITS(0,15) /*!< inserted channel x conversion data */
+
+/* ADC_RDATA */
+#define ADC_RDATA_RDATA BITS(0,15) /*!< regular channel data */
+
+/* ADC_OVSAMPCTL */
+#define ADC_OVSAMPCTL_OVSEN BIT(0) /*!< oversampling enable */
+#define ADC_OVSAMPCTL_OVSR BITS(2,4) /*!< oversampling ratio */
+#define ADC_OVSAMPCTL_OVSS BITS(5,8) /*!< oversampling shift */
+#define ADC_OVSAMPCTL_TOVS BIT(9) /*!< triggered oversampling */
+
+/* constants definitions */
+/* ADC flag definitions */
+#define ADC_FLAG_WDE ADC_STAT_WDE /*!< analog watchdog event flag */
+#define ADC_FLAG_EOC ADC_STAT_EOC /*!< end of group conversion flag */
+#define ADC_FLAG_EOIC ADC_STAT_EOIC /*!< end of inserted channel group conversion flag */
+#define ADC_FLAG_STIC ADC_STAT_STIC /*!< start flag of inserted channel group */
+#define ADC_FLAG_STRC ADC_STAT_STRC /*!< start flag of regular channel group */
+
+/* adc_ctl0 register value */
+#define CTL0_DISNUM(regval) (BITS(13,15) & ((uint32_t)(regval) << 13)) /*!< number of conversions in discontinuous mode */
+
+/* ADC special function */
+#define ADC_SCAN_MODE ADC_CTL0_SM /*!< scan mode */
+#define ADC_INSERTED_CHANNEL_AUTO ADC_CTL0_ICA /*!< inserted channel group convert automatically */
+#define ADC_CONTINUOUS_MODE ADC_CTL1_CTN /*!< continuous mode */
+
+/* ADC data alignment */
+#define ADC_DATAALIGN_RIGHT ((uint32_t)0x00000000U) /*!< right alignment */
+#define ADC_DATAALIGN_LEFT ADC_CTL1_DAL /*!< left alignment */
+
+/* external trigger select for regular channel */
+#define CTL1_ETSRC(regval) (BITS(17,19) & ((uint32_t)(regval) << 17))
+#define ADC_EXTTRIG_REGULAR_T0_CH0 CTL1_ETSRC(0) /*!< TIMER0 CH0 event select */
+#define ADC_EXTTRIG_REGULAR_T0_CH1 CTL1_ETSRC(1) /*!< TIMER0 CH1 event select */
+#define ADC_EXTTRIG_REGULAR_T0_CH2 CTL1_ETSRC(2) /*!< TIMER0 CH2 event select */
+#define ADC_EXTTRIG_REGULAR_T2_TRGO CTL1_ETSRC(4) /*!< TIMER2 TRGO event select */
+#define ADC_EXTTRIG_REGULAR_T14_CH0 CTL1_ETSRC(5) /*!< TIMER14 CH0 event select */
+#define ADC_EXTTRIG_REGULAR_EXTI_11 CTL1_ETSRC(6) /*!< external interrupt line 11 */
+#define ADC_EXTTRIG_REGULAR_NONE CTL1_ETSRC(7) /*!< software trigger */
+
+/* external trigger select for inserted channel */
+#define CTL1_ETSIC(regval) (BITS(12,14) & ((uint32_t)(regval) << 12))
+#define ADC_EXTTRIG_INSERTED_T0_TRGO CTL1_ETSIC(0) /*!< TIMER0 TRGO event select */
+#define ADC_EXTTRIG_INSERTED_T0_CH3 CTL1_ETSIC(1) /*!< TIMER0 CH3 event select */
+#define ADC_EXTTRIG_INSERTED_T2_CH3 CTL1_ETSIC(4) /*!< TIMER2 CH3 event select */
+#define ADC_EXTTRIG_INSERTED_T14_TRGO CTL1_ETSIC(5) /*!< TIMER14 TRGO event select */
+#define ADC_EXTTRIG_INSERTED_EXTI_15 CTL1_ETSIC(6) /*!< external interrupt line 15 */
+#define ADC_EXTTRIG_INSERTED_NONE CTL1_ETSIC(7) /*!< software trigger */
+
+/* adc_samptx register value */
+#define SAMPTX_SPT(regval) (BITS(0,2) & ((uint32_t)(regval) << 0))
+#define ADC_SAMPLETIME_1POINT5 SAMPTX_SPT(0) /*!< 1.5 sampling cycles */
+#define ADC_SAMPLETIME_7POINT5 SAMPTX_SPT(1) /*!< 7.5 sampling cycles */
+#define ADC_SAMPLETIME_13POINT5 SAMPTX_SPT(2) /*!< 13.5 sampling cycles */
+#define ADC_SAMPLETIME_28POINT5 SAMPTX_SPT(3) /*!< 28.5 sampling cycles */
+#define ADC_SAMPLETIME_41POINT5 SAMPTX_SPT(4) /*!< 41.5 sampling cycles */
+#define ADC_SAMPLETIME_55POINT5 SAMPTX_SPT(5) /*!< 55.5 sampling cycles */
+#define ADC_SAMPLETIME_71POINT5 SAMPTX_SPT(6) /*!< 71.5 sampling cycles */
+#define ADC_SAMPLETIME_239POINT5 SAMPTX_SPT(7) /*!< 239.5 sampling cycles */
+
+/* ADC data offset for inserted channel x*/
+#define IOFFX_IOFF(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
+
+/* ADC analog watchdog high threshold */
+#define WDHT_WDHT(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
+
+/* ADC analog watchdog low threshold */
+#define WDLT_WDLT(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
+
+/* ADC regular channel group length */
+#define RSQ0_RL(regval) (BITS(20,23) & ((uint32_t)(regval) << 20))
+
+/* ADC inserted channel group length */
+#define ISQ_IL(regval) (BITS(20,21) & ((uint32_t)(regval) << 20))
+
+/* ADC resolution definitions */
+#define CTL0_DRES(regval) (BITS(24,25) & ((regval) << 24)) /*!< ADC resolution */
+#define ADC_RESOLUTION_12B CTL0_DRES(0) /*!< 12-bit ADC resolution */
+#define ADC_RESOLUTION_10B CTL0_DRES(1) /*!< 10-bit ADC resolution */
+#define ADC_RESOLUTION_8B CTL0_DRES(2) /*!< 8-bit ADC resolution */
+#define ADC_RESOLUTION_6B CTL0_DRES(3) /*!< 6-bit ADC resolution */
+
+/* ADC oversampling shift */
+#define OVSAMPCTL_OVSS(regval) (BITS(5,8) & ((uint32_t)(regval) << 5))
+#define ADC_OVERSAMPLING_SHIFT_NONE OVSAMPCTL_OVSS(0) /*!< no oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_1B OVSAMPCTL_OVSS(1) /*!< 1-bit oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_2B OVSAMPCTL_OVSS(2) /*!< 2-bit oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_3B OVSAMPCTL_OVSS(3) /*!< 3-bit oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_4B OVSAMPCTL_OVSS(4) /*!< 4-bit oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_5B OVSAMPCTL_OVSS(5) /*!< 5-bit oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_6B OVSAMPCTL_OVSS(6) /*!< 6-bit oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_7B OVSAMPCTL_OVSS(7) /*!< 7-bit oversampling shift */
+#define ADC_OVERSAMPLING_SHIFT_8B OVSAMPCTL_OVSS(8) /*!< 8-bit oversampling shift */
+
+/* ADC oversampling ratio */
+#define OVSAMPCTL_OVSR(regval) (BITS(2,4) & ((uint32_t)(regval) << 2))
+#define ADC_OVERSAMPLING_RATIO_MUL2 OVSAMPCTL_OVSR(0) /*!< oversampling ratio multiple 2 */
+#define ADC_OVERSAMPLING_RATIO_MUL4 OVSAMPCTL_OVSR(1) /*!< oversampling ratio multiple 4 */
+#define ADC_OVERSAMPLING_RATIO_MUL8 OVSAMPCTL_OVSR(2) /*!< oversampling ratio multiple 8 */
+#define ADC_OVERSAMPLING_RATIO_MUL16 OVSAMPCTL_OVSR(3) /*!< oversampling ratio multiple 16 */
+#define ADC_OVERSAMPLING_RATIO_MUL32 OVSAMPCTL_OVSR(4) /*!< oversampling ratio multiple 32 */
+#define ADC_OVERSAMPLING_RATIO_MUL64 OVSAMPCTL_OVSR(5) /*!< oversampling ratio multiple 64 */
+#define ADC_OVERSAMPLING_RATIO_MUL128 OVSAMPCTL_OVSR(6) /*!< oversampling ratio multiple 128 */
+#define ADC_OVERSAMPLING_RATIO_MUL256 OVSAMPCTL_OVSR(7) /*!< oversampling ratio multiple 256 */
+
+/* ADC triggered oversampling */
+#define ADC_OVERSAMPLING_ALL_CONVERT 0U /*!< all oversampled conversions for a channel are done consecutively after a trigger */
+#define ADC_OVERSAMPLING_ONE_CONVERT 1U /*!< each oversampled conversion for a channel needs a trigger */
+
+/* ADC channel group definitions */
+#define ADC_REGULAR_CHANNEL ((uint8_t)0x01U) /*!< ADC regular channel group */
+#define ADC_INSERTED_CHANNEL ((uint8_t)0x02U) /*!< ADC inserted channel group */
+#define ADC_REGULAR_INSERTED_CHANNEL ((uint8_t)0x03U) /*!< both regular and inserted channel group */
+#define ADC_CHANNEL_DISCON_DISABLE ((uint8_t)0x04U) /*!< disable discontinuous mode of regular & inserted channel */
+
+/* ADC inserted channel definitions */
+#define ADC_INSERTED_CHANNEL_0 ((uint8_t)0x00U) /*!< ADC inserted channel 0 */
+#define ADC_INSERTED_CHANNEL_1 ((uint8_t)0x01U) /*!< ADC inserted channel 1 */
+#define ADC_INSERTED_CHANNEL_2 ((uint8_t)0x02U) /*!< ADC inserted channel 2 */
+#define ADC_INSERTED_CHANNEL_3 ((uint8_t)0x03U) /*!< ADC inserted channel 3 */
+
+/* ADC channel definitions */
+#define ADC_CHANNEL_0 ((uint8_t)0x00U) /*!< ADC channel 0 */
+#define ADC_CHANNEL_1 ((uint8_t)0x01U) /*!< ADC channel 1 */
+#define ADC_CHANNEL_2 ((uint8_t)0x02U) /*!< ADC channel 2 */
+#define ADC_CHANNEL_3 ((uint8_t)0x03U) /*!< ADC channel 3 */
+#define ADC_CHANNEL_4 ((uint8_t)0x04U) /*!< ADC channel 4 */
+#define ADC_CHANNEL_5 ((uint8_t)0x05U) /*!< ADC channel 5 */
+#define ADC_CHANNEL_6 ((uint8_t)0x06U) /*!< ADC channel 6 */
+#define ADC_CHANNEL_7 ((uint8_t)0x07U) /*!< ADC channel 7 */
+#define ADC_CHANNEL_8 ((uint8_t)0x08U) /*!< ADC channel 8 */
+#define ADC_CHANNEL_9 ((uint8_t)0x09U) /*!< ADC channel 9 */
+#define ADC_CHANNEL_16 ((uint8_t)0x10U) /*!< ADC channel 16 */
+#define ADC_CHANNEL_17 ((uint8_t)0x11U) /*!< ADC channel 17 */
+
+/* ADC interrupt definitions */
+#define ADC_INT_WDE ADC_STAT_WDE /*!< analog watchdog event interrupt */
+#define ADC_INT_EOC ADC_STAT_EOC /*!< end of group conversion interrupt */
+#define ADC_INT_EOIC ADC_STAT_EOIC /*!< end of inserted group conversion interrupt */
+
+/* ADC interrupt flag */
+#define ADC_INT_FLAG_WDE ADC_STAT_WDE /*!< analog watchdog event interrupt flag */
+#define ADC_INT_FLAG_EOC ADC_STAT_EOC /*!< end of group conversion interrupt flag */
+#define ADC_INT_FLAG_EOIC ADC_STAT_EOIC /*!< end of inserted group conversion interrupt flag */
+
+/* function declarations */
+/* reset ADC */
+void adc_deinit(void);
+/* enable ADC interface */
+void adc_enable(void);
+/* disable ADC interface */
+void adc_disable(void);
+
+/* ADC calibration and reset calibration */
+void adc_calibration_enable(void);
+/* enable DMA request */
+void adc_dma_mode_enable(void);
+/* disable DMA request */
+void adc_dma_mode_disable(void);
+
+/* enable the temperature sensor and Vrefint channel */
+void adc_tempsensor_vrefint_enable(void);
+/* disable the temperature sensor and Vrefint channel */
+void adc_tempsensor_vrefint_disable(void);
+
+/* configure ADC discontinuous mode */
+void adc_discontinuous_mode_config(uint8_t channel_group, uint8_t length);
+/* configure ADC special function */
+void adc_special_function_config(uint32_t function, ControlStatus newvalue);
+
+/* configure ADC data alignment */
+void adc_data_alignment_config(uint32_t data_alignment);
+/* configure the length of regular channel group or inserted channel group */
+void adc_channel_length_config(uint8_t channel_group, uint32_t length);
+/* configure ADC regular channel */
+void adc_regular_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time);
+/* configure ADC inserted channel */
+void adc_inserted_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time);
+/* configure ADC inserted channel offset */
+void adc_inserted_channel_offset_config(uint8_t inserted_channel, uint16_t offset);
+/* enable ADC external trigger */
+void adc_external_trigger_config(uint8_t channel_group, ControlStatus newvalue);
+/* configure ADC external trigger source */
+void adc_external_trigger_source_config(uint8_t channel_group, uint32_t external_trigger_source);
+/* enable ADC software trigger */
+void adc_software_trigger_enable(uint8_t channel_group);
+
+/* read ADC regular group data register */
+uint16_t adc_regular_data_read(void);
+/* read ADC inserted group data register */
+uint16_t adc_inserted_data_read(uint8_t inserted_channel);
+
+/* get the ADC flag bits */
+FlagStatus adc_flag_get(uint32_t flag);
+/* clear the ADC flag bits */
+void adc_flag_clear(uint32_t flag);
+/* get the ADC interrupt bits */
+FlagStatus adc_interrupt_flag_get(uint32_t flag);
+/* clear the ADC flag */
+void adc_interrupt_flag_clear(uint32_t flag);
+/* enable ADC interrupt */
+void adc_interrupt_enable(uint32_t interrupt);
+/* disable ADC interrupt */
+void adc_interrupt_disable(uint32_t interrupt);
+
+/* configure ADC analog watchdog single channel */
+void adc_watchdog_single_channel_enable(uint8_t channel);
+/* configure ADC analog watchdog group channel */
+void adc_watchdog_group_channel_enable(uint8_t channel_group);
+/* disable ADC analog watchdog */
+void adc_watchdog_disable(void);
+/* configure ADC analog watchdog threshold */
+void adc_watchdog_threshold_config(uint16_t low_threshold, uint16_t high_threshold);
+
+/* configure ADC resolution */
+void adc_resolution_config(uint32_t resolution);
+/* configure ADC oversample mode */
+void adc_oversample_mode_config(uint8_t mode, uint16_t shift, uint8_t ratio);
+/* enable ADC oversample mode */
+void adc_oversample_mode_enable(void);
+/* disable ADC oversample mode */
+void adc_oversample_mode_disable(void);
+
+#endif /* GD32E230_ADC_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_cmp.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_cmp.h
new file mode 100644
index 0000000000..aa9d8a9b2c
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_cmp.h
@@ -0,0 +1,162 @@
+/*!
+ \file gd32e230_cmp.h
+ \brief definitions for the CMP
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_CMP_H
+#define GD32E230_CMP_H
+
+#include "gd32e230.h"
+
+/* CMP definitions */
+#define CMP CMP_BASE /*!< CMP base address */
+
+/* registers definitions */
+#define CMP_CS REG32((CMP) + 0x00U) /*!< CMP control and status register */
+
+/* CMP_CS bits definitions */
+#define CMP_CS_CMPEN BIT(0) /*!< CMP enable */
+#define CMP_CS_CMPSW BIT(1) /*!< CMP switch */
+#define CMP_CS_CMPM BITS(2,3) /*!< CMP mode */
+#define CMP_CS_CMPMSEL BITS(4,6) /*!< COMP_M input selection */
+#define CMP_CS_CMPOSEL BITS(8,10) /*!< CMP output selection */
+#define CMP_CS_CMPPL BIT(11) /*!< polarity of CMP output */
+#define CMP_CS_CMPHST BITS(12,13) /*!< CMP hysteresis */
+#define CMP_CS_CMPO BIT(14) /*!< CMP output */
+#define CMP_CS_CMPLK BIT(15) /*!< CMP lock */
+
+/* consts definitions */
+/* operating mode */
+typedef enum{
+ CMP_HIGHSPEED = 0, /*!< high speed mode */
+ CMP_MIDDLESPEED, /*!< medium speed mode */
+ CMP_LOWSPEED, /*!< low speed mode */
+ CMP_VERYLOWSPEED /*!< very-low speed mode */
+}operating_mode_enum;
+
+/* inverting input */
+typedef enum{
+ CMP_1_4VREFINT = 0, /*!< VREFINT /4 input */
+ CMP_1_2VREFINT, /*!< VREFINT /2 input */
+ CMP_3_4VREFINT, /*!< VREFINT *3/4 input */
+ CMP_VREFINT, /*!< VREFINT input */
+ CMP_PA4, /*!< PA4 input */
+ CMP_PA5, /*!< PA5 input */
+ CMP_PA0, /*!< PA0 input */
+ CMP_PA2 /*!< PA2 input */
+}inverting_input_enum;
+
+/* hysteresis */
+typedef enum{
+ CMP_HYSTERESIS_NO = 0, /*!< output no hysteresis */
+ CMP_HYSTERESIS_LOW, /*!< output low hysteresis */
+ CMP_HYSTERESIS_MIDDLE, /*!< output middle hysteresis */
+ CMP_HYSTERESIS_HIGH /*!< output high hysteresis */
+}cmp_hysteresis_enum;
+
+/* output */
+typedef enum{
+ CMP_OUTPUT_NONE = 0x0U, /*!< output no selection */
+ CMP_OUTPUT_TIMER0BKIN = 0x1U, /*!< TIMER 0 break input */
+ CMP_OUTPUT_TIMER0IC0 = 0x2U, /*!< TIMER 0 channel0 input capture */
+ CMP_OUTPUT_TIMER0OCPRECLR = 0x3U, /*!< TIMER 0 OCPRE_CLR input */
+ CMP_OUTPUT_TIMER2IC0 = 0x06U, /*!< TIMER 2 channel0 input capture */
+ CMP_OUTPUT_TIMER2OCPRECLR = 0x7U /*!< TIMER 2 OCPRE_CLR input */
+}cmp_output_enum;
+
+/* CMP mode */
+#define CS_CMPM(regval) (BITS(2,3) & ((uint32_t)(regval) << 2))
+#define CS_CMPM_HIGHSPEED CS_CMPM(0) /*!< CMP mode high speed */
+#define CS_CMPM_MIDDLESPEED CS_CMPM(1) /*!< CMP mode middle speed */
+#define CS_CMPM_LOWSPEED CS_CMPM(2) /*!< CMP mode low speed */
+#define CS_CMPM_VERYLOWSPEED CS_CMPM(3) /*!< CMP mode very low speed */
+
+/* comparator inverting input */
+#define CS_CMPMSEL(regval) (BITS(4,6) & ((uint32_t)(regval) << 4))
+#define CS_CMPMSEL_1_4VREFINT CS_CMPMSEL(0) /*!< CMP inverting input 1/4 Vrefint */
+#define CS_CMPMSEL_1_2VREFINT CS_CMPMSEL(1) /*!< CMP inverting input 1/2 Vrefint */
+#define CS_CMPMSEL_3_4VREFINT CS_CMPMSEL(2) /*!< CMP inverting input 3/4 Vrefint */
+#define CS_CMPMSEL_VREFINT CS_CMPMSEL(3) /*!< CMP inverting input Vrefint */
+#define CS_CMPMSEL_PA4 CS_CMPMSEL(4) /*!< CMP inverting input PA4*/
+#define CS_CMPMSEL_PA5 CS_CMPMSEL(5) /*!< CMP inverting input PA5*/
+#define CS_CMPMSEL_PA0 CS_CMPMSEL(6) /*!< CMP inverting input PA0*/
+#define CS_CMPMSEL_PA2 CS_CMPMSEL(7) /*!< CMP inverting input PA2*/
+
+/* CMP output */
+#define CS_CMPOSEL(regval) (BITS(8,10) & ((uint32_t)(regval) << 8))
+#define CS_CMPOSEL_OUTPUT_NONE CS_CMPOSEL(0) /*!< CMP output none */
+#define CS_CMPOSEL_OUTPUT_TIMER0BKIN CS_CMPOSEL(1) /*!< CMP output TIMER 0 break input */
+#define CS_CMPOSEL_OUTPUT_TIMER0IC0 CS_CMPOSEL(2) /*!< CMP output TIMER 0 channel 0 input capture */
+#define CS_CMPOSEL_OUTPUT_TIMER0OCPRECLR CS_CMPOSEL(3) /*!< CMP output TIMER 0 ocpreclear input */
+#define CS_CMPOSEL_OUTPUT_TIMER2IC0 CS_CMPOSEL(6) /*!< CMP output TIMER 2 channle 0 input capture */
+#define CS_CMPOSEL_OUTPUT_TIMER2OCPRECLR CS_CMPOSEL(7) /*!< CMP output TIMER 2 ocpreclear input */
+
+/* CMP hysteresis */
+#define CS_CMPHST(regval) (BITS(12,13) & ((uint32_t)(regval) << 12))
+#define CS_CMPHST_HYSTERESIS_NO CS_CMPHST(0) /*!< CMP output no hysteresis */
+#define CS_CMPHST_HYSTERESIS_LOW CS_CMPHST(1) /*!< CMP output low hysteresis */
+#define CS_CMPHST_HYSTERESIS_MIDDLE CS_CMPHST(2) /*!< CMP output middle hysteresis */
+#define CS_CMPHST_HYSTERESIS_HIGH CS_CMPHST(3) /*!< CMP output high hysteresis */
+
+/* CMP output level */
+#define CMP_OUTPUTLEVEL_HIGH ((uint32_t)0x00000001) /*!< comparator output high */
+#define CMP_OUTPUTLEVEL_LOW ((uint32_t)0x00000000) /*!< comparator output low */
+
+/* output polarity of comparator */
+#define CMP_OUTPUT_POLARITY_INVERTED ((uint32_t)0x00000001) /*!< output is inverted */
+#define CMP_OUTPUT_POLARITY_NOINVERTED ((uint32_t)0x00000000) /*!< output is not inverted */
+
+/* function declarations */
+
+/* initialization functions */
+/* CMP deinit */
+void cmp_deinit(void);
+/* CMP mode init */
+void cmp_mode_init(operating_mode_enum operating_mode, inverting_input_enum inverting_input, cmp_hysteresis_enum output_hysteresis);
+/* CMP output init */
+void cmp_output_init(cmp_output_enum output_slection, uint32_t output_polarity);
+/* enable CMP */
+void cmp_enable(void);
+/* disable CMP */
+void cmp_disable(void);
+/* enable CMP switch */
+void cmp_switch_enable(void);
+/* disable CMP switch */
+void cmp_switch_disable(void);
+/* get output level */
+uint32_t cmp_output_level_get(void);
+/* lock the CMP */
+void cmp_lock_enable(void);
+
+#endif /* GD32E230_CMP_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_crc.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_crc.h
new file mode 100644
index 0000000000..619ce47970
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_crc.h
@@ -0,0 +1,120 @@
+/*!
+ \file gd32e230_crc.h
+ \brief definitions for the CRC
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_CRC_H
+#define GD32E230_CRC_H
+
+#include "gd32e230.h"
+
+/* CRC definitions */
+#define CRC CRC_BASE
+
+/* registers definitions */
+#define CRC_DATA REG32((CRC) + 0x00U) /*!< CRC data register */
+#define CRC_FDATA REG32((CRC) + 0x04U) /*!< CRC free data register */
+#define CRC_CTL REG32((CRC) + 0x08U) /*!< CRC control register */
+#define CRC_IDATA REG32((CRC) + 0x10U) /*!< CRC initialization data register */
+#define CRC_POLY REG32((CRC) + 0x14U) /*!< CRC polynomial register */
+
+/* bits definitions */
+/* CRC_DATA */
+#define CRC_DATA_DATA BITS(0,31) /*!< CRC data bits */
+
+/* CRC_FDATA */
+#define CRC_FDATA_FDATA BITS(0,7) /*!< CRC free data bits */
+
+/* CRC_CTL */
+#define CRC_CTL_RST BIT(0) /*!< CRC reset bit */
+#define CRC_CTL_PS BITS(3,4) /*!< size of polynomial function bits */
+#define CRC_CTL_REV_I BITS(5,6) /*!< input data reverse function bits */
+#define CRC_CTL_REV_O BIT(7) /*!< output data reverse function bit */
+
+/* CRC_INIT */
+#define CRC_IDATA_IDATA BITS(0,31) /*!< CRC initialization data bits */
+
+/* CRC_POLY */
+#define CRC_POLY_POLY BITS(0,31) /*!< CRC polynomial value bits */
+
+/* constants definitions */
+/* size of polynomial function */
+#define CTL_PS(regval) (BITS(3, 4) & ((regval) << 3))
+#define CRC_CTL_PS_32 CTL_PS(0) /*!< 32-bit polynomial for CRC calculation */
+#define CRC_CTL_PS_16 CTL_PS(1) /*!< 16-bit polynomial for CRC calculation */
+#define CRC_CTL_PS_8 CTL_PS(2) /*!< 8-bit polynomial for CRC calculation */
+#define CRC_CTL_PS_7 CTL_PS(3) /*!< 7-bit polynomial for CRC calculation */
+
+/* input data reverse function */
+#define CTL_REV_I(regval) (BITS(5, 6) & ((regval) << 5))
+#define CRC_INPUT_DATA_NOT CTL_REV_I(0) /*!< input data not reverse */
+#define CRC_INPUT_DATA_BYTE CTL_REV_I(1) /*!< input data reversed by byte type */
+#define CRC_INPUT_DATA_HALFWORD CTL_REV_I(2) /*!< input data reversed by half-word type */
+#define CRC_INPUT_DATA_WORD CTL_REV_I(3) /*!< input data reversed by word type */
+
+/* function declarations */
+/* deinit CRC calculation unit */
+void crc_deinit(void);
+
+/* enable the reverse operation of output data */
+void crc_reverse_output_data_enable(void);
+/* disable the reverse operation of output data */
+void crc_reverse_output_data_disable(void);
+
+/* reset data register to the value of initializaiton data register */
+void crc_data_register_reset(void);
+/* read the data register */
+uint32_t crc_data_register_read(void);
+
+/* read the free data register */
+uint8_t crc_free_data_register_read(void);
+/* write the free data register */
+void crc_free_data_register_write(uint8_t free_data);
+
+/* write the initial value register */
+void crc_init_data_register_write(uint32_t init_data);
+/* configure the CRC input data function */
+void crc_input_data_reverse_config(uint32_t data_reverse);
+
+/* configure the CRC size of polynomial function */
+void crc_polynomial_size_set(uint32_t poly_size);
+/* configure the CRC polynomial value function */
+void crc_polynomial_set(uint32_t poly);
+
+/* CRC calculate a 32-bit data */
+uint32_t crc_single_data_calculate(uint32_t sdata);
+/* CRC calculate a 32-bit data array */
+uint32_t crc_block_data_calculate(uint32_t array[], uint32_t size);
+
+#endif /* GD32E230_CRC_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dbg.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dbg.h
new file mode 100644
index 0000000000..4a07da903e
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dbg.h
@@ -0,0 +1,123 @@
+/*!
+ \file gd32e230_dbg.h
+ \brief definitions for the DBG
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_DBG_H
+#define GD32E230_DBG_H
+
+#include "gd32e230.h"
+
+/* DBG definitions */
+#define DBG DBG_BASE
+
+/* registers definitions */
+#define DBG_ID REG32(DBG + 0x00U) /*!< DBG_ID code register */
+#define DBG_CTL0 REG32(DBG + 0x04U) /*!< DBG control register 0 */
+#define DBG_CTL1 REG32(DBG + 0x08U) /*!< DBG control register 1 */
+
+/* bits definitions */
+/* DBG_ID */
+#define DBG_ID_ID_CODE BITS(0,31) /*!< DBG ID code values */
+
+/* DBG_CTL0 */
+#define DBG_CTL0_SLP_HOLD BIT(0) /*!< keep debugger connection during sleep mode */
+#define DBG_CTL0_DSLP_HOLD BIT(1) /*!< keep debugger connection during deepsleep mode */
+#define DBG_CTL0_STB_HOLD BIT(2) /*!< keep debugger connection during standby mode */
+#define DBG_CTL0_FWDGT_HOLD BIT(8) /*!< debug FWDGT kept when core is halted */
+#define DBG_CTL0_WWDGT_HOLD BIT(9) /*!< debug WWDGT kept when core is halted */
+#define DBG_CTL0_TIMER0_HOLD BIT(10) /*!< TIMER0 counter kept when core is halted */
+#define DBG_CTL0_TIMER2_HOLD BIT(12) /*!< TIMER2 counter kept when core is halted */
+#define DBG_CTL0_I2C0_HOLD BIT(15) /*!< hold I2C0 smbus when core is halted */
+#define DBG_CTL0_I2C1_HOLD BIT(16) /*!< hold I2C1 smbus when core is halted */
+#define DBG_CTL0_TIMER5_HOLD BIT(19) /*!< hold TIMER5 counter when core is halted */
+#define DBG_CTL0_TIMER13_HOLD BIT(27) /*!< hold TIMER13 counter when core is halted */
+
+/* DBG_CTL1 */
+#define DBG_CTL1_RTC_HOLD BIT(10) /*!< hold RTC calendar and wakeup counter when core is halted */
+#define DBG_CTL1_TIMER14_HOLD BIT(16) /*!< hold TIMER14 counter when core is halted */
+#define DBG_CTL1_TIMER15_HOLD BIT(17) /*!< hold TIMER15 counter when core is halted */
+#define DBG_CTL1_TIMER16_HOLD BIT(18) /*!< hold TIMER16 counter when core is halted */
+
+/* constants definitions */
+#define DBG_LOW_POWER_SLEEP DBG_CTL0_SLP_HOLD /*!< keep debugger connection during sleep mode */
+#define DBG_LOW_POWER_DEEPSLEEP DBG_CTL0_DSLP_HOLD /*!< keep debugger connection during deepsleep mode */
+#define DBG_LOW_POWER_STANDBY DBG_CTL0_STB_HOLD /*!< keep debugger connection during standby mode */
+
+/* define the peripheral debug hold bit position and its register index offset */
+#define DBG_REGIDX_BIT(regidx, bitpos) (((regidx) << 6) | (bitpos))
+#define DBG_REG_VAL(periph) (REG32(DBG + ((uint32_t)(periph) >> 6)))
+#define DBG_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
+
+/* register index */
+enum dbg_reg_idx
+{
+ DBG_IDX_CTL0 = 0x04U,
+ DBG_IDX_CTL1 = 0x08U,
+};
+
+/* peripherals hold bit */
+typedef enum
+{
+ DBG_FWDGT_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 8U), /*!< FWDGT hold bit */
+ DBG_WWDGT_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 9U), /*!< WWDGT hold bit */
+ DBG_TIMER0_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 10U), /*!< TIMER0 hold bit */
+ DBG_TIMER2_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 12U), /*!< TIMER2 hold bit */
+ DBG_TIMER5_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 19U), /*!< TIMER5 hold bit */
+ DBG_TIMER13_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 27U), /*!< TIMER13 hold bit */
+ DBG_TIMER14_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 16U), /*!< TIMER14 hold bit */
+ DBG_TIMER15_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 17U), /*!< TIMER15 hold bit */
+ DBG_TIMER16_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 18U), /*!< TIMER16 hold bit */
+ DBG_I2C0_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 15U), /*!< I2C0 hold bit */
+ DBG_I2C1_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 16U), /*!< I2C1 hold bit */
+ DBG_RTC_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 10U), /*!< RTC hold bit */
+}dbg_periph_enum;
+
+/* function declarations */
+/* deinitialize the DBG */
+void dbg_deinit(void);
+/* read DBG_ID code register */
+uint32_t dbg_id_get(void);
+
+/* enable low power behavior when the MCU is in debug mode */
+void dbg_low_power_enable(uint32_t dbg_low_power);
+/* disable low power behavior when the MCU is in debug mode */
+void dbg_low_power_disable(uint32_t dbg_low_power);
+
+/* enable peripheral behavior when the MCU is in debug mode */
+void dbg_periph_enable(dbg_periph_enum dbg_periph);
+/* disable peripheral behavior when the MCU is in debug mode */
+void dbg_periph_disable(dbg_periph_enum dbg_periph);
+
+#endif /* GD32E230_DBG_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dma.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dma.h
new file mode 100644
index 0000000000..2205e1bdce
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_dma.h
@@ -0,0 +1,264 @@
+/*!
+ \file gd32e230_dma.h
+ \brief definitions for the DMA
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_DMA_H
+#define GD32E230_DMA_H
+
+#include "gd32e230.h"
+
+/* DMA definitions */
+#define DMA DMA_BASE /*!< DMA base address */
+
+/* registers definitions */
+#define DMA_INTF REG32(DMA + 0x00U) /*!< DMA interrupt flag register */
+#define DMA_INTC REG32(DMA + 0x04U) /*!< DMA interrupt flag clear register */
+#define DMA_CH0CTL REG32(DMA + 0x08U) /*!< DMA channel 0 control register */
+#define DMA_CH0CNT REG32(DMA + 0x0CU) /*!< DMA channel 0 counter register */
+#define DMA_CH0PADDR REG32(DMA + 0x10U) /*!< DMA channel 0 peripheral base address register */
+#define DMA_CH0MADDR REG32(DMA + 0x14U) /*!< DMA channel 0 memory base address register */
+#define DMA_CH1CTL REG32(DMA + 0x1CU) /*!< DMA channel 1 control register */
+#define DMA_CH1CNT REG32(DMA + 0x20U) /*!< DMA channel 1 counter register */
+#define DMA_CH1PADDR REG32(DMA + 0x24U) /*!< DMA channel 1 peripheral base address register */
+#define DMA_CH1MADDR REG32(DMA + 0x28U) /*!< DMA channel 1 memory base address register */
+#define DMA_CH2CTL REG32(DMA + 0x30U) /*!< DMA channel 2 control register */
+#define DMA_CH2CNT REG32(DMA + 0x34U) /*!< DMA channel 2 counter register */
+#define DMA_CH2PADDR REG32(DMA + 0x38U) /*!< DMA channel 2 peripheral base address register */
+#define DMA_CH2MADDR REG32(DMA + 0x3CU) /*!< DMA channel 2 memory base address register */
+#define DMA_CH3CTL REG32(DMA + 0x44U) /*!< DMA channel 3 control register */
+#define DMA_CH3CNT REG32(DMA + 0x48U) /*!< DMA channel 3 counter register */
+#define DMA_CH3PADDR REG32(DMA + 0x4CU) /*!< DMA channel 3 peripheral base address register */
+#define DMA_CH3MADDR REG32(DMA + 0x50U) /*!< DMA channel 3 memory base address register */
+#define DMA_CH4CTL REG32(DMA + 0x58U) /*!< DMA channel 4 control register */
+#define DMA_CH4CNT REG32(DMA + 0x5CU) /*!< DMA channel 4 counter register */
+#define DMA_CH4PADDR REG32(DMA + 0x60U) /*!< DMA channel 4 peripheral base address register */
+#define DMA_CH4MADDR REG32(DMA + 0x64U) /*!< DMA channel 4 memory base address register */
+
+/* bits definitions */
+/* DMA_INTF */
+#define DMA_INTF_GIF BIT(0) /*!< global interrupt flag of channel */
+#define DMA_INTF_FTFIF BIT(1) /*!< full transfer finish flag of channel */
+#define DMA_INTF_HTFIF BIT(2) /*!< half transfer finish flag of channel */
+#define DMA_INTF_ERRIF BIT(3) /*!< error flag of channel */
+
+/* DMA_INTC */
+#define DMA_INTC_GIFC BIT(0) /*!< clear global interrupt flag of channel */
+#define DMA_INTC_FTFIFC BIT(1) /*!< clear transfer finish flag of channel */
+#define DMA_INTC_HTFIFC BIT(2) /*!< clear half transfer finish flag of channel */
+#define DMA_INTC_ERRIFC BIT(3) /*!< clear error flag of channel */
+
+/* DMA_CHxCTL,x=0..4 */
+#define DMA_CHXCTL_CHEN BIT(0) /*!< channel x enable */
+#define DMA_CHXCTL_FTFIE BIT(1) /*!< enable bit for channel x transfer complete interrupt */
+#define DMA_CHXCTL_HTFIE BIT(2) /*!< enable bit for channel x transfer half complete interrupt */
+#define DMA_CHXCTL_ERRIE BIT(3) /*!< enable bit for channel x error interrupt */
+#define DMA_CHXCTL_DIR BIT(4) /*!< direction of the data transfer on the channel */
+#define DMA_CHXCTL_CMEN BIT(5) /*!< circulation mode */
+#define DMA_CHXCTL_PNAGA BIT(6) /*!< next address generation algorithm of peripheral */
+#define DMA_CHXCTL_MNAGA BIT(7) /*!< next address generation algorithm of memory */
+#define DMA_CHXCTL_PWIDTH BITS(8,9) /*!< transfer data size of peripheral */
+#define DMA_CHXCTL_MWIDTH BITS(10,11) /*!< transfer data size of memory */
+#define DMA_CHXCTL_PRIO BITS(12,13) /*!< priority level of channelx */
+#define DMA_CHXCTL_M2M BIT(14) /*!< memory to memory mode */
+
+/* DMA_CHxCNT,x=0..4 */
+#define DMA_CHXCNT_CNT BITS(0,15) /*!< transfer counter */
+
+/* DMA_CHxPADDR,x=0..4 */
+#define DMA_CHXPADDR_PADDR BITS(0,31) /*!< peripheral base address */
+
+/* DMA_CHxMADDR,x=0..4 */
+#define DMA_CHXMADDR_MADDR BITS(0,31) /*!< memory base address */
+
+/* constants definitions */
+/* DMA channel select */
+typedef enum
+{
+ DMA_CH0 = 0, /*!< DMA Channel0 */
+ DMA_CH1, /*!< DMA Channel1 */
+ DMA_CH2, /*!< DMA Channel2 */
+ DMA_CH3, /*!< DMA Channel3 */
+ DMA_CH4, /*!< DMA Channel4 */
+} dma_channel_enum;
+
+/* DMA initialize struct */
+typedef struct
+{
+ uint32_t periph_addr; /*!< peripheral base address */
+ uint32_t periph_width; /*!< transfer data size of peripheral */
+ uint32_t memory_addr; /*!< memory base address */
+ uint32_t memory_width; /*!< transfer data size of memory */
+ uint32_t number; /*!< channel transfer number */
+ uint32_t priority; /*!< channel priority level */
+ uint8_t periph_inc; /*!< peripheral increasing mode */
+ uint8_t memory_inc; /*!< memory increasing mode */
+ uint8_t direction; /*!< channel data transfer direction */
+} dma_parameter_struct;
+
+/* DMA reset value */
+#define DMA_CHCTL_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXCTL register */
+#define DMA_CHCNT_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXCNT register */
+#define DMA_CHPADDR_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXPADDR register */
+#define DMA_CHMADDR_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXMADDR register */
+#define DMA_CHINTF_RESET_VALUE (DMA_INTF_GIF | DMA_INTF_FTFIF | \
+ DMA_INTF_HTFIF | DMA_INTF_ERRIF)
+
+#define DMA_FLAG_ADD(flag,shift) ((flag) << ((uint32_t)(shift) * 4U)) /*!< DMA channel flag shift */
+
+/* DMA_CHCTL base address */
+#define DMA_CHXCTL_BASE (DMA + 0x08U) /*!< the base address of DMA channel CHXCTL register */
+#define DMA_CHXCNT_BASE (DMA + 0x0CU) /*!< the base address of DMA channel CHXCNT register */
+#define DMA_CHXPADDR_BASE (DMA + 0x10U) /*!< the base address of DMA channel CHXPADDR register */
+#define DMA_CHXMADDR_BASE (DMA + 0x14U) /*!< the base address of DMA channel CHXMADDR register */
+
+/* DMA channel shift bit */
+#define DMA_CHCTL(channel) REG32(DMA_CHXCTL_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXCTL register */
+#define DMA_CHCNT(channel) REG32(DMA_CHXCNT_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXCNT register */
+#define DMA_CHPADDR(channel) REG32(DMA_CHXPADDR_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXPADDR register */
+#define DMA_CHMADDR(channel) REG32(DMA_CHXMADDR_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXMADDR register */
+
+/* DMA_INTF register */
+/* interrupt flag bits */
+#define DMA_INT_FLAG_G DMA_INTF_GIF /*!< global interrupt flag of channel */
+#define DMA_INT_FLAG_FTF DMA_INTF_FTFIF /*!< full transfer finish interrupt flag of channel */
+#define DMA_INT_FLAG_HTF DMA_INTF_HTFIF /*!< half transfer finish interrupt flag of channel */
+#define DMA_INT_FLAG_ERR DMA_INTF_ERRIF /*!< error interrupt flag of channel */
+
+/* flag bits */
+#define DMA_FLAG_G DMA_INTF_GIF /*!< global interrupt flag of channel */
+#define DMA_FLAG_FTF DMA_INTF_FTFIF /*!< full transfer finish flag of channel */
+#define DMA_FLAG_HTF DMA_INTF_HTFIF /*!< half transfer finish flag of channel */
+#define DMA_FLAG_ERR DMA_INTF_ERRIF /*!< error flag of channel */
+
+/* DMA_CHxCTL register */
+/* interrupt enable bits */
+#define DMA_INT_FTF DMA_CHXCTL_FTFIE /*!< enable bit for channel full transfer finish interrupt */
+#define DMA_INT_HTF DMA_CHXCTL_HTFIE /*!< enable bit for channel half transfer finish interrupt */
+#define DMA_INT_ERR DMA_CHXCTL_ERRIE /*!< enable bit for channel error interrupt */
+
+/* transfer direction */
+#define DMA_PERIPHERAL_TO_MEMORY ((uint32_t)0x00000000U) /*!< read from peripheral and write to memory */
+#define DMA_MEMORY_TO_PERIPHERAL ((uint32_t)0x00000001U) /*!< read from memory and write to peripheral */
+
+/* peripheral increasing mode */
+#define DMA_PERIPH_INCREASE_DISABLE ((uint32_t)0x00000000U) /*!< next address of peripheral is fixed address mode */
+#define DMA_PERIPH_INCREASE_ENABLE ((uint32_t)0x00000001U) /*!< next address of peripheral is increasing address mode */
+
+/* memory increasing mode */
+#define DMA_MEMORY_INCREASE_DISABLE ((uint32_t)0x00000000U) /*!< next address of memory is fixed address mode */
+#define DMA_MEMORY_INCREASE_ENABLE ((uint32_t)0x00000001U) /*!< next address of memory is increasing address mode */
+
+/* transfer data size of peripheral */
+#define CHCTL_PWIDTH(regval) (BITS(8,9) & ((regval) << 8)) /*!< transfer data size of peripheral */
+#define DMA_PERIPHERAL_WIDTH_8BIT CHCTL_PWIDTH(0U) /*!< transfer data size of peripheral is 8-bit */
+#define DMA_PERIPHERAL_WIDTH_16BIT CHCTL_PWIDTH(1U) /*!< transfer data size of peripheral is 16-bit */
+#define DMA_PERIPHERAL_WIDTH_32BIT CHCTL_PWIDTH(2U) /*!< transfer data size of peripheral is 32-bit */
+
+/* transfer data size of memory */
+#define CHCTL_MWIDTH(regval) (BITS(10,11) & ((regval) << 10)) /*!< transfer data size of memory */
+#define DMA_MEMORY_WIDTH_8BIT CHCTL_MWIDTH(0U) /*!< transfer data size of memory is 8-bit */
+#define DMA_MEMORY_WIDTH_16BIT CHCTL_MWIDTH(1U) /*!< transfer data size of memory is 16-bit */
+#define DMA_MEMORY_WIDTH_32BIT CHCTL_MWIDTH(2U) /*!< transfer data size of memory is 32-bit */
+
+/* channel priority level */
+#define CHCTL_PRIO(regval) (BITS(12,13) & ((regval) << 12)) /*!< DMA channel priority level */
+#define DMA_PRIORITY_LOW CHCTL_PRIO(0U) /*!< low priority */
+#define DMA_PRIORITY_MEDIUM CHCTL_PRIO(1U) /*!< medium priority */
+#define DMA_PRIORITY_HIGH CHCTL_PRIO(2U) /*!< high priority */
+#define DMA_PRIORITY_ULTRA_HIGH CHCTL_PRIO(3U) /*!< ultra high priority */
+
+/* DMA_CHxCNT register */
+/* transfer counter */
+#define DMA_CHANNEL_CNT_MASK DMA_CHXCNT_CNT
+
+/* function declarations */
+/* deinitialize DMA a channel registers */
+void dma_deinit(dma_channel_enum channelx);
+/* initialize the parameters of DMA struct with the default values */
+void dma_struct_para_init(dma_parameter_struct* init_struct);
+/* initialize DMA channel */
+void dma_init(dma_channel_enum channelx, dma_parameter_struct* init_struct);
+/* enable DMA circulation mode */
+void dma_circulation_enable(dma_channel_enum channelx);
+/* disable DMA circulation mode */
+void dma_circulation_disable(dma_channel_enum channelx);
+/* enable memory to memory mode */
+void dma_memory_to_memory_enable(dma_channel_enum channelx);
+/* disable memory to memory mode */
+void dma_memory_to_memory_disable(dma_channel_enum channelx);
+/* enable DMA channel */
+void dma_channel_enable(dma_channel_enum channelx);
+/* disable DMA channel */
+void dma_channel_disable(dma_channel_enum channelx);
+
+/* set DMA peripheral base address */
+void dma_periph_address_config(dma_channel_enum channelx, uint32_t address);
+/* set DMA memory base address */
+void dma_memory_address_config(dma_channel_enum channelx, uint32_t address);
+/* set the number of remaining data to be transferred by the DMA */
+void dma_transfer_number_config(dma_channel_enum channelx, uint32_t number);
+/* get the number of remaining data to be transferred by the DMA */
+uint32_t dma_transfer_number_get(dma_channel_enum channelx);
+/* configure priority level of DMA channel */
+void dma_priority_config(dma_channel_enum channelx, uint32_t priority);
+/* configure transfer data size of memory */
+void dma_memory_width_config (dma_channel_enum channelx, uint32_t mwidth);
+/* configure transfer data size of peripheral */
+void dma_periph_width_config (dma_channel_enum channelx, uint32_t pwidth);
+/* enable next address increasement algorithm of memory */
+void dma_memory_increase_enable(dma_channel_enum channelx);
+/* disable next address increasement algorithm of memory */
+void dma_memory_increase_disable(dma_channel_enum channelx);
+/* enable next address increasement algorithm of peripheral */
+void dma_periph_increase_enable(dma_channel_enum channelx);
+/* disable next address increasement algorithm of peripheral */
+void dma_periph_increase_disable(dma_channel_enum channelx);
+/* configure the direction of data transfer on the channel */
+void dma_transfer_direction_config(dma_channel_enum channelx, uint32_t direction);
+
+/* check DMA flag is set or not */
+FlagStatus dma_flag_get(dma_channel_enum channelx, uint32_t flag);
+/* clear DMA a channel flag */
+void dma_flag_clear(dma_channel_enum channelx, uint32_t flag);
+/* check DMA flag and interrupt enable bit is set or not */
+FlagStatus dma_interrupt_flag_get(dma_channel_enum channelx, uint32_t flag);
+/* clear DMA a channel flag */
+void dma_interrupt_flag_clear(dma_channel_enum channelx, uint32_t flag);
+/* enable DMA interrupt */
+void dma_interrupt_enable(dma_channel_enum channelx, uint32_t source);
+/* disable DMA interrupt */
+void dma_interrupt_disable(dma_channel_enum channelx, uint32_t source);
+
+#endif /* GD32E230_DMA_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_exti.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_exti.h
new file mode 100644
index 0000000000..4d8b875c4a
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_exti.h
@@ -0,0 +1,278 @@
+/*!
+ \file gd32e230_exti.h
+ \brief definitions for the EXTI
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_EXTI_H
+#define GD32E230_EXTI_H
+
+#include "gd32e230.h"
+
+/* EXTI definitions */
+#define EXTI EXTI_BASE
+
+/* registers definitions */
+#define EXTI_INTEN REG32(EXTI + 0x00U) /*!< interrupt enable register */
+#define EXTI_EVEN REG32(EXTI + 0x04U) /*!< event enable register */
+#define EXTI_RTEN REG32(EXTI + 0x08U) /*!< rising edge trigger enable register */
+#define EXTI_FTEN REG32(EXTI + 0x0CU) /*!< falling trigger enable register */
+#define EXTI_SWIEV REG32(EXTI + 0x10U) /*!< software interrupt event register */
+#define EXTI_PD REG32(EXTI + 0x14U) /*!< pending register */
+
+/* bits definitions */
+/* EXTI_INTEN */
+#define EXTI_INTEN_INTEN0 BIT(0) /*!< interrupt from line 0 */
+#define EXTI_INTEN_INTEN1 BIT(1) /*!< interrupt from line 1 */
+#define EXTI_INTEN_INTEN2 BIT(2) /*!< interrupt from line 2 */
+#define EXTI_INTEN_INTEN3 BIT(3) /*!< interrupt from line 3 */
+#define EXTI_INTEN_INTEN4 BIT(4) /*!< interrupt from line 4 */
+#define EXTI_INTEN_INTEN5 BIT(5) /*!< interrupt from line 5 */
+#define EXTI_INTEN_INTEN6 BIT(6) /*!< interrupt from line 6 */
+#define EXTI_INTEN_INTEN7 BIT(7) /*!< interrupt from line 7 */
+#define EXTI_INTEN_INTEN8 BIT(8) /*!< interrupt from line 8 */
+#define EXTI_INTEN_INTEN9 BIT(9) /*!< interrupt from line 9 */
+#define EXTI_INTEN_INTEN10 BIT(10) /*!< interrupt from line 10 */
+#define EXTI_INTEN_INTEN11 BIT(11) /*!< interrupt from line 11 */
+#define EXTI_INTEN_INTEN12 BIT(12) /*!< interrupt from line 12 */
+#define EXTI_INTEN_INTEN13 BIT(13) /*!< interrupt from line 13 */
+#define EXTI_INTEN_INTEN14 BIT(14) /*!< interrupt from line 14 */
+#define EXTI_INTEN_INTEN15 BIT(15) /*!< interrupt from line 15 */
+#define EXTI_INTEN_INTEN16 BIT(16) /*!< interrupt from line 16 */
+#define EXTI_INTEN_INTEN17 BIT(17) /*!< interrupt from line 17 */
+#define EXTI_INTEN_INTEN18 BIT(18) /*!< interrupt from line 18 */
+#define EXTI_INTEN_INTEN19 BIT(19) /*!< interrupt from line 19 */
+#define EXTI_INTEN_INTEN20 BIT(20) /*!< interrupt from line 20 */
+#define EXTI_INTEN_INTEN21 BIT(21) /*!< interrupt from line 21 */
+#define EXTI_INTEN_INTEN22 BIT(22) /*!< interrupt from line 22 */
+#define EXTI_INTEN_INTEN23 BIT(23) /*!< interrupt from line 23 */
+#define EXTI_INTEN_INTEN24 BIT(24) /*!< interrupt from line 24 */
+#define EXTI_INTEN_INTEN25 BIT(25) /*!< interrupt from line 25 */
+#define EXTI_INTEN_INTEN26 BIT(26) /*!< interrupt from line 26 */
+#define EXTI_INTEN_INTEN27 BIT(27) /*!< interrupt from line 27 */
+
+/* EXTI_EVEN */
+#define EXTI_EVEN_EVEN0 BIT(0) /*!< event from line 0 */
+#define EXTI_EVEN_EVEN1 BIT(1) /*!< event from line 1 */
+#define EXTI_EVEN_EVEN2 BIT(2) /*!< event from line 2 */
+#define EXTI_EVEN_EVEN3 BIT(3) /*!< event from line 3 */
+#define EXTI_EVEN_EVEN4 BIT(4) /*!< event from line 4 */
+#define EXTI_EVEN_EVEN5 BIT(5) /*!< event from line 5 */
+#define EXTI_EVEN_EVEN6 BIT(6) /*!< event from line 6 */
+#define EXTI_EVEN_EVEN7 BIT(7) /*!< event from line 7 */
+#define EXTI_EVEN_EVEN8 BIT(8) /*!< event from line 8 */
+#define EXTI_EVEN_EVEN9 BIT(9) /*!< event from line 9 */
+#define EXTI_EVEN_EVEN10 BIT(10) /*!< event from line 10 */
+#define EXTI_EVEN_EVEN11 BIT(11) /*!< event from line 11 */
+#define EXTI_EVEN_EVEN12 BIT(12) /*!< event from line 12 */
+#define EXTI_EVEN_EVEN13 BIT(13) /*!< event from line 13 */
+#define EXTI_EVEN_EVEN14 BIT(14) /*!< event from line 14 */
+#define EXTI_EVEN_EVEN15 BIT(15) /*!< event from line 15 */
+#define EXTI_EVEN_EVEN16 BIT(16) /*!< event from line 16 */
+#define EXTI_EVEN_EVEN17 BIT(17) /*!< event from line 17 */
+#define EXTI_EVEN_EVEN18 BIT(18) /*!< event from line 18 */
+#define EXTI_EVEN_EVEN19 BIT(19) /*!< event from line 19 */
+#define EXTI_EVEN_EVEN20 BIT(20) /*!< event from line 20 */
+#define EXTI_EVEN_EVEN21 BIT(21) /*!< event from line 21 */
+#define EXTI_EVEN_EVEN22 BIT(22) /*!< event from line 22 */
+#define EXTI_EVEN_EVEN23 BIT(23) /*!< event from line 23 */
+#define EXTI_EVEN_EVEN24 BIT(24) /*!< event from line 24 */
+#define EXTI_EVEN_EVEN25 BIT(25) /*!< event from line 25 */
+#define EXTI_EVEN_EVEN26 BIT(26) /*!< event from line 26 */
+#define EXTI_EVEN_EVEN27 BIT(27) /*!< event from line 27 */
+
+/* EXTI_RTEN */
+#define EXTI_RTEN_RTEN0 BIT(0) /*!< rising edge from line 0 */
+#define EXTI_RTEN_RTEN1 BIT(1) /*!< rising edge from line 1 */
+#define EXTI_RTEN_RTEN2 BIT(2) /*!< rising edge from line 2 */
+#define EXTI_RTEN_RTEN3 BIT(3) /*!< rising edge from line 3 */
+#define EXTI_RTEN_RTEN4 BIT(4) /*!< rising edge from line 4 */
+#define EXTI_RTEN_RTEN5 BIT(5) /*!< rising edge from line 5 */
+#define EXTI_RTEN_RTEN6 BIT(6) /*!< rising edge from line 6 */
+#define EXTI_RTEN_RTEN7 BIT(7) /*!< rising edge from line 7 */
+#define EXTI_RTEN_RTEN8 BIT(8) /*!< rising edge from line 8 */
+#define EXTI_RTEN_RTEN9 BIT(9) /*!< rising edge from line 9 */
+#define EXTI_RTEN_RTEN10 BIT(10) /*!< rising edge from line 10 */
+#define EXTI_RTEN_RTEN11 BIT(11) /*!< rising edge from line 11 */
+#define EXTI_RTEN_RTEN12 BIT(12) /*!< rising edge from line 12 */
+#define EXTI_RTEN_RTEN13 BIT(13) /*!< rising edge from line 13 */
+#define EXTI_RTEN_RTEN14 BIT(14) /*!< rising edge from line 14 */
+#define EXTI_RTEN_RTEN15 BIT(15) /*!< rising edge from line 15 */
+#define EXTI_RTEN_RTEN16 BIT(16) /*!< rising edge from line 16 */
+#define EXTI_RTEN_RTEN17 BIT(17) /*!< rising edge from line 17 */
+#define EXTI_RTEN_RTEN19 BIT(19) /*!< rising edge from line 19 */
+#define EXTI_RTEN_RTEN21 BIT(21) /*!< rising edge from line 21 */
+
+/* EXTI_FTEN */
+#define EXTI_FTEN_FTEN0 BIT(0) /*!< falling edge from line 0 */
+#define EXTI_FTEN_FTEN1 BIT(1) /*!< falling edge from line 1 */
+#define EXTI_FTEN_FTEN2 BIT(2) /*!< falling edge from line 2 */
+#define EXTI_FTEN_FTEN3 BIT(3) /*!< falling edge from line 3 */
+#define EXTI_FTEN_FTEN4 BIT(4) /*!< falling edge from line 4 */
+#define EXTI_FTEN_FTEN5 BIT(5) /*!< falling edge from line 5 */
+#define EXTI_FTEN_FTEN6 BIT(6) /*!< falling edge from line 6 */
+#define EXTI_FTEN_FTEN7 BIT(7) /*!< falling edge from line 7 */
+#define EXTI_FTEN_FTEN8 BIT(8) /*!< falling edge from line 8 */
+#define EXTI_FTEN_FTEN9 BIT(9) /*!< falling edge from line 9 */
+#define EXTI_FTEN_FTEN10 BIT(10) /*!< falling edge from line 10 */
+#define EXTI_FTEN_FTEN11 BIT(11) /*!< falling edge from line 11 */
+#define EXTI_FTEN_FTEN12 BIT(12) /*!< falling edge from line 12 */
+#define EXTI_FTEN_FTEN13 BIT(13) /*!< falling edge from line 13 */
+#define EXTI_FTEN_FTEN14 BIT(14) /*!< falling edge from line 14 */
+#define EXTI_FTEN_FTEN15 BIT(15) /*!< falling edge from line 15 */
+#define EXTI_FTEN_FTEN16 BIT(16) /*!< falling edge from line 16 */
+#define EXTI_FTEN_FTEN17 BIT(17) /*!< falling edge from line 17 */
+#define EXTI_FTEN_FTEN19 BIT(19) /*!< falling edge from line 19 */
+#define EXTI_FTEN_FTEN21 BIT(21) /*!< falling edge from line 21 */
+
+/* EXTI_SWIEV */
+#define EXTI_SWIEV_SWIEV0 BIT(0) /*!< software interrupt/event request from line 0 */
+#define EXTI_SWIEV_SWIEV1 BIT(1) /*!< software interrupt/event request from line 1 */
+#define EXTI_SWIEV_SWIEV2 BIT(2) /*!< software interrupt/event request from line 2 */
+#define EXTI_SWIEV_SWIEV3 BIT(3) /*!< software interrupt/event request from line 3 */
+#define EXTI_SWIEV_SWIEV4 BIT(4) /*!< software interrupt/event request from line 4 */
+#define EXTI_SWIEV_SWIEV5 BIT(5) /*!< software interrupt/event request from line 5 */
+#define EXTI_SWIEV_SWIEV6 BIT(6) /*!< software interrupt/event request from line 6 */
+#define EXTI_SWIEV_SWIEV7 BIT(7) /*!< software interrupt/event request from line 7 */
+#define EXTI_SWIEV_SWIEV8 BIT(8) /*!< software interrupt/event request from line 8 */
+#define EXTI_SWIEV_SWIEV9 BIT(9) /*!< software interrupt/event request from line 9 */
+#define EXTI_SWIEV_SWIEV10 BIT(10) /*!< software interrupt/event request from line 10 */
+#define EXTI_SWIEV_SWIEV11 BIT(11) /*!< software interrupt/event request from line 11 */
+#define EXTI_SWIEV_SWIEV12 BIT(12) /*!< software interrupt/event request from line 12 */
+#define EXTI_SWIEV_SWIEV13 BIT(13) /*!< software interrupt/event request from line 13 */
+#define EXTI_SWIEV_SWIEV14 BIT(14) /*!< software interrupt/event request from line 14 */
+#define EXTI_SWIEV_SWIEV15 BIT(15) /*!< software interrupt/event request from line 15 */
+#define EXTI_SWIEV_SWIEV16 BIT(16) /*!< software interrupt/event request from line 16 */
+#define EXTI_SWIEV_SWIEV17 BIT(17) /*!< software interrupt/event request from line 17 */
+#define EXTI_SWIEV_SWIEV19 BIT(19) /*!< software interrupt/event request from line 19 */
+#define EXTI_SWIEV_SWIEV21 BIT(21) /*!< software interrupt/event request from line 21 */
+
+/* EXTI_PD */
+#define EXTI_PD_PD0 BIT(0) /*!< interrupt/event pending status from line 0 */
+#define EXTI_PD_PD1 BIT(1) /*!< interrupt/event pending status from line 1 */
+#define EXTI_PD_PD2 BIT(2) /*!< interrupt/event pending status from line 2 */
+#define EXTI_PD_PD3 BIT(3) /*!< interrupt/event pending status from line 3 */
+#define EXTI_PD_PD4 BIT(4) /*!< interrupt/event pending status from line 4 */
+#define EXTI_PD_PD5 BIT(5) /*!< interrupt/event pending status from line 5 */
+#define EXTI_PD_PD6 BIT(6) /*!< interrupt/event pending status from line 6 */
+#define EXTI_PD_PD7 BIT(7) /*!< interrupt/event pending status from line 7 */
+#define EXTI_PD_PD8 BIT(8) /*!< interrupt/event pending status from line 8 */
+#define EXTI_PD_PD9 BIT(9) /*!< interrupt/event pending status from line 9 */
+#define EXTI_PD_PD10 BIT(10) /*!< interrupt/event pending status from line 10 */
+#define EXTI_PD_PD11 BIT(11) /*!< interrupt/event pending status from line 11 */
+#define EXTI_PD_PD12 BIT(12) /*!< interrupt/event pending status from line 12 */
+#define EXTI_PD_PD13 BIT(13) /*!< interrupt/event pending status from line 13 */
+#define EXTI_PD_PD14 BIT(14) /*!< interrupt/event pending status from line 14 */
+#define EXTI_PD_PD15 BIT(15) /*!< interrupt/event pending status from line 15 */
+#define EXTI_PD_PD16 BIT(16) /*!< interrupt/event pending status from line 16 */
+#define EXTI_PD_PD17 BIT(17) /*!< interrupt/event pending status from line 17 */
+#define EXTI_PD_PD19 BIT(19) /*!< interrupt/event pending status from line 19 */
+#define EXTI_PD_PD21 BIT(21) /*!< interrupt/event pending status from line 21 */
+
+/* constants definitions */
+/* EXTI line number */
+typedef enum
+{
+ EXTI_0 = BIT(0), /*!< EXTI line 0 */
+ EXTI_1 = BIT(1), /*!< EXTI line 1 */
+ EXTI_2 = BIT(2), /*!< EXTI line 2 */
+ EXTI_3 = BIT(3), /*!< EXTI line 3 */
+ EXTI_4 = BIT(4), /*!< EXTI line 4 */
+ EXTI_5 = BIT(5), /*!< EXTI line 5 */
+ EXTI_6 = BIT(6), /*!< EXTI line 6 */
+ EXTI_7 = BIT(7), /*!< EXTI line 7 */
+ EXTI_8 = BIT(8), /*!< EXTI line 8 */
+ EXTI_9 = BIT(9), /*!< EXTI line 9 */
+ EXTI_10 = BIT(10), /*!< EXTI line 10 */
+ EXTI_11 = BIT(11), /*!< EXTI line 11 */
+ EXTI_12 = BIT(12), /*!< EXTI line 12 */
+ EXTI_13 = BIT(13), /*!< EXTI line 13 */
+ EXTI_14 = BIT(14), /*!< EXTI line 14 */
+ EXTI_15 = BIT(15), /*!< EXTI line 15 */
+ EXTI_16 = BIT(16), /*!< EXTI line 16 */
+ EXTI_17 = BIT(17), /*!< EXTI line 17 */
+ EXTI_18 = BIT(18), /*!< EXTI line 18 */
+ EXTI_19 = BIT(19), /*!< EXTI line 19 */
+ EXTI_20 = BIT(20), /*!< EXTI line 20 */
+ EXTI_21 = BIT(21), /*!< EXTI line 21 */
+ EXTI_22 = BIT(22), /*!< EXTI line 22 */
+ EXTI_23 = BIT(23), /*!< EXTI line 23 */
+ EXTI_24 = BIT(24), /*!< EXTI line 24 */
+ EXTI_25 = BIT(25), /*!< EXTI line 25 */
+ EXTI_26 = BIT(26), /*!< EXTI line 26 */
+ EXTI_27 = BIT(27), /*!< EXTI line 27 */
+}exti_line_enum;
+
+/* external interrupt and event */
+typedef enum
+{
+ EXTI_INTERRUPT = 0, /*!< EXTI interrupt mode */
+ EXTI_EVENT /*!< EXTI event mode */
+}exti_mode_enum;
+
+/* interrupt trigger mode */
+typedef enum
+{
+ EXTI_TRIG_RISING = 0, /*!< EXTI rising edge trigger */
+ EXTI_TRIG_FALLING, /*!< EXTI falling edge trigger */
+ EXTI_TRIG_BOTH /*!< EXTI rising and falling edge trigger */
+}exti_trig_type_enum;
+
+/* function declarations */
+/* deinitialize the EXTI */
+void exti_deinit(void);
+/* enable the configuration of EXTI initialize */
+void exti_init(exti_line_enum linex, exti_mode_enum mode, exti_trig_type_enum trig_type);
+/* enable the interrupts from EXTI line x */
+void exti_interrupt_enable(exti_line_enum linex);
+/* enable the events from EXTI line x */
+void exti_event_enable(exti_line_enum linex);
+/* disable the interrupts from EXTI line x */
+void exti_interrupt_disable(exti_line_enum linex);
+/* disable the events from EXTI line x */
+void exti_event_disable(exti_line_enum linex);
+
+/* get EXTI lines pending flag */
+FlagStatus exti_flag_get(exti_line_enum linex);
+/* clear EXTI lines pending flag */
+void exti_flag_clear(exti_line_enum linex);
+/* get EXTI lines flag when the interrupt flag is set */
+FlagStatus exti_interrupt_flag_get(exti_line_enum linex);
+/* clear EXTI lines pending flag */
+void exti_interrupt_flag_clear(exti_line_enum linex);
+/* EXTI software interrupt event enable */
+void exti_software_interrupt_enable(exti_line_enum linex);
+/* EXTI software interrupt event disable */
+void exti_software_interrupt_disable(exti_line_enum linex);
+
+#endif /* GD32E230_EXTI_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fmc.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fmc.h
new file mode 100644
index 0000000000..50f6d4b8bd
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fmc.h
@@ -0,0 +1,272 @@
+/*!
+ \file gd32e230_fmc.h
+ \brief definitions for the FMC
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_FMC_H
+#define GD32E230_FMC_H
+
+#include "gd32e230.h"
+
+/* FMC and option byte definition */
+#define FMC FMC_BASE /*!< FMC register base address */
+#define OB OB_BASE /*!< option byte base address */
+
+/* registers definitions */
+#define FMC_WS REG32((FMC) + 0x00U) /*!< FMC wait state register */
+#define FMC_KEY REG32((FMC) + 0x04U) /*!< FMC unlock key register */
+#define FMC_OBKEY REG32((FMC) + 0x08U) /*!< FMC option bytes unlock key register */
+#define FMC_STAT REG32((FMC) + 0x0CU) /*!< FMC status register */
+#define FMC_CTL REG32((FMC) + 0x10U) /*!< FMC control register */
+#define FMC_ADDR REG32((FMC) + 0x14U) /*!< FMC address register */
+#define FMC_OBSTAT REG32((FMC) + 0x1CU) /*!< FMC option bytes status register */
+#define FMC_WP REG32((FMC) + 0x20U) /*!< FMC write protection register */
+#define FMC_PID REG32((FMC) + 0x100U) /*!< FMC product ID register */
+
+#define OB_SPC_USER REG32((OB) + 0x00U) /*!< option byte security protection value and user value */
+#define OB_DATA REG32((OB) + 0x04U) /*!< option byte data value*/
+#define OB_WP REG32((OB) + 0x08U) /*!< option byte write protection */
+
+/* bits definitions */
+/* FMC_WS */
+#define FMC_WS_WSCNT BITS(0,2) /*!< wait state counter */
+#define FMC_WS_PFEN BIT(4) /*!< pre-fetch enable */
+#define FMC_WS_PGW BIT(15) /*!< program width to flash memory */
+
+/* FMC_KEY */
+#define FMC_KEY_KEY BITS(0,31) /*!< FMC main flash unlock key bits */
+
+/* FMC_OBKEY */
+#define FMC_OBKEY_OBKEY BITS(0,31) /*!< option bytes unlock key bits */
+
+/* FMC_STAT */
+#define FMC_STAT_BUSY BIT(0) /*!< flash busy flag bit */
+#define FMC_STAT_PGERR BIT(2) /*!< flash program error flag bit */
+#define FMC_STAT_PGAERR BIT(3) /*!< program alignment error flag bit */
+#define FMC_STAT_WPERR BIT(4) /*!< flash write protection error flag bit */
+#define FMC_STAT_ENDF BIT(5) /*!< end of operation flag bit */
+
+/* FMC_CTL */
+#define FMC_CTL_PG BIT(0) /*!< main flash program command bit */
+#define FMC_CTL_PER BIT(1) /*!< main flash page erase bit */
+#define FMC_CTL_MER BIT(2) /*!< main flash mass erase bit */
+#define FMC_CTL_OBPG BIT(4) /*!< option bytes program command bit */
+#define FMC_CTL_OBER BIT(5) /*!< option bytes erase command bit */
+#define FMC_CTL_START BIT(6) /*!< send erase command to FMC bit */
+#define FMC_CTL_LK BIT(7) /*!< flash lock bit */
+#define FMC_CTL_OBWEN BIT(9) /*!< option bytes erase/program enable bit */
+#define FMC_CTL_ERRIE BIT(10) /*!< error interrupt enable bit */
+#define FMC_CTL_ENDIE BIT(12) /*!< end of operation interrupt enable bit */
+#define FMC_CTL_OBRLD BIT(13) /*!< option bytes reload bit */
+
+/* FMC_ADDR */
+#define FMC_ADDR_ADDR BITS(0,31) /*!< flash command address bits */
+
+/* FMC_OBSTAT */
+#define FMC_OBSTAT_OBERR BIT(0) /*!< option bytes read error bit */
+#define FMC_OBSTAT_PLEVEL_BIT0 BIT(1) /*!< protection level bit 0 */
+#define FMC_OBSTAT_PLEVEL_BIT1 BIT(2) /*!< protection level bit 1 */
+#define FMC_OBSTAT_USER BITS(8,15) /*!< option bytes user bits */
+#define FMC_OBSTAT_DATA BITS(16,31) /*!< option byte data bits */
+
+/* FMC_WP */
+#define FMC_WP_WP BITS(0,15) /*!< store WP[15:0] of option byte block after system reset */
+
+/* FMC_PID */
+#define FMC_PID_PID BITS(0,31) /*!< product ID bits */
+
+/* constants definitions */
+/* fmc state */
+typedef enum
+{
+ FMC_READY, /*!< the operation has been completed */
+ FMC_BUSY, /*!< the operation is in progress */
+ FMC_PGERR, /*!< program error */
+ FMC_PGAERR, /*!< program alignment error */
+ FMC_WPERR, /*!< erase/program protection error */
+ FMC_TOERR, /*!< timeout error */
+ FMC_OB_HSPC /*!< option byte security protection code high */
+}fmc_state_enum;
+
+/* unlock key */
+#define UNLOCK_KEY0 ((uint32_t)0x45670123U) /*!< unlock key 0 */
+#define UNLOCK_KEY1 ((uint32_t)0xCDEF89ABU) /*!< unlock key 1 */
+
+/* wait state counter value */
+#define WS_WSCNT_0 ((uint8_t)0x00U) /*!< 0 wait state added */
+#define WS_WSCNT_1 ((uint8_t)0x01U) /*!< 1 wait state added */
+#define WS_WSCNT_2 ((uint8_t)0x02U) /*!< 2 wait state added */
+
+/* read protect configure */
+#define FMC_NSPC ((uint16_t)0x5AA5U) /*!< no security protection */
+#define FMC_LSPC ((uint16_t)0x44BBU) /*!< low security protection, any value except 0xA5 or 0xCC */
+#define FMC_HSPC ((uint16_t)0x33CCU) /*!< high security protection */
+
+#define LOW_16BITS_MASK ((uint32_t)0x0000FFFFU) /*!< low 16 bits mask */
+#define HIGH_16BITS_MASK ((uint32_t)0xFFFF0000U) /*!< high 16 bits mask */
+
+/* option byte address */
+#define OB_SPC_USER_ADDRESS ((uint32_t)0x1FFFF800U) /*!< address of option byte security protection and user */
+#define OB_DATA_ADDRESS ((uint32_t)0x1FFFF804U) /*!< address of option byte data */
+#define OB_WP_ADDRESS ((uint32_t)0x1FFFF808U) /*!< address of option byte write protection */
+
+/* option byte write protection */
+#define OB_LWP ((uint32_t)0x000000FFU) /*!< write protection low bits */
+#define OB_HWP ((uint32_t)0x0000FF00U) /*!< write protection high bits */
+
+/* option byte software/hardware free watchdog timer */
+#define OB_FWDGT_HW ((uint8_t)(~BIT(0))) /*!< hardware free watchdog timer */
+#define OB_FWDGT_SW ((uint8_t)BIT(0)) /*!< software free watchdog timer */
+
+/* option byte reset or not entering deep sleep mode */
+#define OB_DEEPSLEEP_RST ((uint8_t)(~BIT(1))) /*!< generate a reset instead of entering deepsleep mode */
+#define OB_DEEPSLEEP_NRST ((uint8_t)BIT(1)) /*!< no reset when entering deepsleep mode */
+
+/* option byte reset or not entering standby mode */
+#define OB_STDBY_RST ((uint8_t)(~BIT(2))) /*!< generate a reset instead of entering standby mode */
+#define OB_STDBY_NRST ((uint8_t)BIT(2)) /*!< no reset when entering deepsleep mode */
+
+/* option byte OB_BOOT1_n set */
+#define OB_BOOT1_SET_1 ((uint8_t)(~BIT(4))) /*!< BOOT1 bit is 1 */
+#define OB_BOOT1_SET_0 ((uint8_t)BIT(4)) /*!< BOOT1 bit is 0 */
+
+/* option byte VDDA monitor enable/disable */
+#define OB_VDDA_DISABLE ((uint8_t)(~BIT(5))) /*!< disable VDDA monitor */
+#define OB_VDDA_ENABLE ((uint8_t)BIT(5)) /*!< enable VDDA monitor */
+
+/* option byte SRAM parity enable/disable */
+#define OB_SRAM_PARITY_ENABLE ((uint8_t)(~BIT(6))) /*!< enable SRAM parity check */
+#define OB_SRAM_PARITY_DISABLE ((uint8_t)BIT(6)) /*!< disable SRAM parity check */
+
+/* option byte security protection level in FMC_OBSTAT register */
+#define OB_OBSTAT_PLEVEL_NO ((uint8_t)0x00U) /*!< no security protection */
+#define OB_OBSTAT_PLEVEL_LOW ((uint8_t)0x01U) /*!< low security protection */
+#define OB_OBSTAT_PLEVEL_HIGH ((uint8_t)0x03U) /*!< high security protection */
+
+/* option byte user mask */
+#define OB_USER_MASK ((uint8_t)0x88U) /*!< OB_USER reserved bit mask */
+
+/* option byte data address */
+#define OB_DATA_ADDR0 ((uint32_t)0x1FFFF804U) /*!< option byte data address 0 */
+#define OB_DATA_ADDR1 ((uint32_t)0x1FFFF806U) /*!< option byte data address 1 */
+
+/* FMC flags */
+#define FMC_FLAG_BUSY FMC_STAT_BUSY /*!< FMC busy flag */
+#define FMC_FLAG_PGERR FMC_STAT_PGERR /*!< FMC programming error flag */
+#define FMC_FLAG_PGAERR FMC_STAT_PGAERR /*!< FMC program alignment error flag */
+#define FMC_FLAG_WPERR FMC_STAT_WPERR /*!< FMC write protection error flag */
+#define FMC_FLAG_END FMC_STAT_ENDF /*!< FMC end of programming flag */
+
+/* FMC interrupt flags */
+#define FMC_INT_FLAG_PGERR FMC_STAT_PGERR /*!< FMC programming error flag */
+#define FMC_INT_FLAG_PGAERR FMC_STAT_PGAERR /*!< FMC program alignment error flag */
+#define FMC_INT_FLAG_WPERR FMC_STAT_WPERR /*!< FMC write protection error flag */
+#define FMC_INT_FLAG_END FMC_STAT_ENDF /*!< FMC end of programming flag */
+
+/* FMC interrupt enable */
+#define FMC_INTEN_END FMC_CTL_ENDIE /*!< enable FMC end of operation interrupt */
+#define FMC_INTEN_ERR FMC_CTL_ERRIE /*!< enable FMC error interrupt */
+
+/* FMC time out */
+#define FMC_TIMEOUT_COUNT ((uint32_t)0x000F0000U) /*!< count to judge of FMC timeout */
+
+/* function declarations */
+/* FMC main memory programming functions */
+/* unlock the main FMC operation */
+void fmc_unlock(void);
+/* lock the main FMC operation */
+void fmc_lock(void);
+/* set the wait state counter value */
+void fmc_wscnt_set(uint8_t wscnt);
+
+/* pre-fetch enable */
+void fmc_prefetch_enable(void);
+/* pre-fetch disable */
+void fmc_prefetch_disable(void);
+/* FMC erase page */
+fmc_state_enum fmc_page_erase(uint32_t page_address);
+/* FMC erase whole chip */
+fmc_state_enum fmc_mass_erase(void);
+/* FMC program a double word at the corresponding address */
+fmc_state_enum fmc_doubleword_program(uint32_t address, uint64_t data);
+/* FMC program a word at the corresponding address */
+fmc_state_enum fmc_word_program(uint32_t address, uint32_t data);
+
+/* FMC option bytes programming functions */
+/* unlock the option byte operation */
+void ob_unlock(void);
+/* lock the option byte operation */
+void ob_lock(void);
+/* reload the option byte and generate a system reset */
+void ob_reset(void);
+/* get option byte value */
+uint32_t option_byte_value_get(uint32_t addr);
+/* erase option byte */
+fmc_state_enum ob_erase(void);
+/* enable option byte write protection (OB_WP) */
+fmc_state_enum ob_write_protection_enable(uint16_t ob_wp);
+/* configure read out protect */
+fmc_state_enum ob_security_protection_config(uint16_t ob_spc);
+/* write the FMC option byte user */
+fmc_state_enum ob_user_write(uint8_t ob_user);
+/* write the FMC option byte data */
+fmc_state_enum ob_data_program(uint16_t data);
+/* get the FMC option byte OB_USER */
+uint8_t ob_user_get(void);
+/* get the FMC option byte OB_DATA */
+uint16_t ob_data_get(void);
+/* get the FMC option byte write protection */
+uint16_t ob_write_protection_get(void);
+/* get the value of FMC option byte security protection level (PLEVEL) in FMC_OBSTAT register */
+uint32_t ob_obstat_plevel_get(void);
+
+/* FMC interrupts and flags management functions */
+/* enable FMC interrupt */
+void fmc_interrupt_enable(uint32_t interrupt);
+/* disable FMC interrupt */
+void fmc_interrupt_disable(uint32_t interrupt);
+/* get flag set or reset */
+FlagStatus fmc_flag_get(uint32_t flag);
+/* clear the FMC pending flag */
+void fmc_flag_clear(uint32_t flag);
+/* get intrrupt flag set or reset */
+FlagStatus fmc_interrupt_flag_get(uint32_t int_flag);
+/* clear the FMC interrupt pending flag by writing 1 */
+void fmc_interrupt_flag_clear(uint32_t int_flag);
+/* return the FMC state */
+fmc_state_enum fmc_state_get(void);
+/* check FMC ready or not */
+fmc_state_enum fmc_ready_wait(uint32_t timeout);
+
+#endif /* GD32E230_FMC_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fwdgt.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fwdgt.h
new file mode 100644
index 0000000000..101f87a34a
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_fwdgt.h
@@ -0,0 +1,119 @@
+/*!
+ \file gd32e230_fwdgt.h
+ \brief definitions for the FWDGT
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_FWDGT_H
+#define GD32E230_FWDGT_H
+
+#include "gd32e230.h"
+
+/* FWDGT definitions */
+#define FWDGT FWDGT_BASE
+
+/* registers definitions */
+#define FWDGT_CTL REG32((FWDGT) + 0x00000000U) /*!< FWDGT control register */
+#define FWDGT_PSC REG32((FWDGT) + 0x00000004U) /*!< FWDGT prescaler register */
+#define FWDGT_RLD REG32((FWDGT) + 0x00000008U) /*!< FWDGT reload register */
+#define FWDGT_STAT REG32((FWDGT) + 0x0000000CU) /*!< FWDGT status register */
+#define FWDGT_WND REG32((FWDGT) + 0x00000010U) /*!< FWDGT window register */
+
+/* bits definitions */
+/* FWDGT_CTL */
+#define FWDGT_CTL_CMD BITS(0,15) /*!< FWDGT command value */
+
+/* FWDGT_PSC */
+#define FWDGT_PSC_PSC BITS(0,2) /*!< FWDGT prescaler divider value */
+
+/* FWDGT_RLD */
+#define FWDGT_RLD_RLD BITS(0,11) /*!< FWDGT counter reload value */
+
+/* FWDGT_STAT */
+#define FWDGT_STAT_PUD BIT(0) /*!< FWDGT prescaler divider value update */
+#define FWDGT_STAT_RUD BIT(1) /*!< FWDGT counter reload value update */
+#define FWDGT_STAT_WUD BIT(2) /*!< FWDGT counter window value update */
+
+/* FWDGT_WND */
+#define FWDGT_WND_WND BITS(0,11) /*!< FWDGT counter window value */
+
+/* constants definitions */
+/* FWDGT_PSC register value */
+#define PSC_PSC(regval) (BITS(0,2) & ((uint32_t)(regval) << 0U))
+#define FWDGT_PSC_DIV4 ((uint8_t)PSC_PSC(0)) /*!< FWDGT prescaler set to 4 */
+#define FWDGT_PSC_DIV8 ((uint8_t)PSC_PSC(1)) /*!< FWDGT prescaler set to 8 */
+#define FWDGT_PSC_DIV16 ((uint8_t)PSC_PSC(2)) /*!< FWDGT prescaler set to 16 */
+#define FWDGT_PSC_DIV32 ((uint8_t)PSC_PSC(3)) /*!< FWDGT prescaler set to 32 */
+#define FWDGT_PSC_DIV64 ((uint8_t)PSC_PSC(4)) /*!< FWDGT prescaler set to 64 */
+#define FWDGT_PSC_DIV128 ((uint8_t)PSC_PSC(5)) /*!< FWDGT prescaler set to 128 */
+#define FWDGT_PSC_DIV256 ((uint8_t)PSC_PSC(6)) /*!< FWDGT prescaler set to 256 */
+
+/* control value */
+#define FWDGT_WRITEACCESS_ENABLE ((uint16_t)0x00005555U) /*!< FWDGT_CTL bits write access enable value */
+#define FWDGT_WRITEACCESS_DISABLE ((uint16_t)0x00000000U) /*!< FWDGT_CTL bits write access disable value */
+#define FWDGT_KEY_RELOAD ((uint16_t)0x0000AAAAU) /*!< FWDGT_CTL bits fwdgt counter reload value */
+#define FWDGT_KEY_ENABLE ((uint16_t)0x0000CCCCU) /*!< FWDGT_CTL bits fwdgt counter enable value */
+
+/* FWDGT timeout value */
+#define FWDGT_WND_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_WND register write operation state flag timeout */
+#define FWDGT_PSC_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_PSC register write operation state flag timeout */
+#define FWDGT_RLD_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_RLD register write operation state flag timeout */
+
+/* FWDGT flag definitions */
+#define FWDGT_FLAG_PUD FWDGT_STAT_PUD /*!< a write operation to FWDGT_PSC register is on going */
+#define FWDGT_FLAG_RUD FWDGT_STAT_RUD /*!< a write operation to FWDGT_RLD register is on going */
+#define FWDGT_FLAG_WUD FWDGT_STAT_WUD /*!< a write operation to FWDGT_WND register is on going */
+
+/* function declarations */
+/* enable write access to FWDGT_PSC and FWDGT_RLD */
+void fwdgt_write_enable(void);
+/* disable write access to FWDGT_PSC,FWDGT_RLD and FWDGT_WND */
+void fwdgt_write_disable(void);
+/* start the free watchdog timer counter */
+void fwdgt_enable(void);
+
+/* configure the free watchdog timer counter prescaler value */
+ErrStatus fwdgt_prescaler_value_config(uint16_t prescaler_value);
+/* configure the free watchdog timer counter reload value */
+ErrStatus fwdgt_reload_value_config(uint16_t reload_value);
+/* configure the free watchdog timer counter window value */
+ErrStatus fwdgt_window_value_config(uint16_t window_value);
+/* reload the counter of FWDGT */
+void fwdgt_counter_reload(void);
+/* configure counter reload value, and prescaler divider value */
+ErrStatus fwdgt_config(uint16_t reload_value, uint8_t prescaler_div);
+
+/* get flag state of FWDGT */
+FlagStatus fwdgt_flag_get(uint16_t flag);
+
+#endif /* GD32E230_FWDGT_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_gpio.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_gpio.h
new file mode 100644
index 0000000000..252383983d
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_gpio.h
@@ -0,0 +1,388 @@
+/*!
+ \file gd32e230_gpio.h
+ \brief definitions for the GPIO
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_GPIO_H
+#define GD32E230_GPIO_H
+
+#include "gd32e230.h"
+
+/* GPIOx(x=A,B,C,F) definitions */
+#define GPIOA (GPIO_BASE + 0x00000000U)
+#define GPIOB (GPIO_BASE + 0x00000400U)
+#define GPIOC (GPIO_BASE + 0x00000800U)
+#define GPIOF (GPIO_BASE + 0x00001400U)
+
+/* registers definitions */
+#define GPIO_CTL(gpiox) REG32((gpiox) + 0x00U) /*!< GPIO port control register */
+#define GPIO_OMODE(gpiox) REG32((gpiox) + 0x04U) /*!< GPIO port output mode register */
+#define GPIO_OSPD(gpiox) REG32((gpiox) + 0x08U) /*!< GPIO port output speed register */
+#define GPIO_PUD(gpiox) REG32((gpiox) + 0x0CU) /*!< GPIO port pull-up/pull-down register */
+#define GPIO_ISTAT(gpiox) REG32((gpiox) + 0x10U) /*!< GPIO port input status register */
+#define GPIO_OCTL(gpiox) REG32((gpiox) + 0x14U) /*!< GPIO port output control register */
+#define GPIO_BOP(gpiox) REG32((gpiox) + 0x18U) /*!< GPIO port bit operation register */
+#define GPIO_LOCK(gpiox) REG32((gpiox) + 0x1CU) /*!< GPIO port configuration lock register */
+#define GPIO_AFSEL0(gpiox) REG32((gpiox) + 0x20U) /*!< GPIO alternate function selected register 0 */
+#define GPIO_AFSEL1(gpiox) REG32((gpiox) + 0x24U) /*!< GPIO alternate function selected register 1 */
+#define GPIO_BC(gpiox) REG32((gpiox) + 0x28U) /*!< GPIO bit clear register */
+#define GPIO_TG(gpiox) REG32((gpiox) + 0x2CU) /*!< GPIO port bit toggle register */
+
+/* bits definitions */
+/* GPIO_CTL */
+#define GPIO_CTL_CTL0 BITS(0,1) /*!< pin 0 configuration bits */
+#define GPIO_CTL_CTL1 BITS(2,3) /*!< pin 1 configuration bits */
+#define GPIO_CTL_CTL2 BITS(4,5) /*!< pin 2 configuration bits */
+#define GPIO_CTL_CTL3 BITS(6,7) /*!< pin 3 configuration bits */
+#define GPIO_CTL_CTL4 BITS(8,9) /*!< pin 4 configuration bits */
+#define GPIO_CTL_CTL5 BITS(10,11) /*!< pin 5 configuration bits */
+#define GPIO_CTL_CTL6 BITS(12,13) /*!< pin 6 configuration bits */
+#define GPIO_CTL_CTL7 BITS(14,15) /*!< pin 7 configuration bits */
+#define GPIO_CTL_CTL8 BITS(16,17) /*!< pin 8 configuration bits */
+#define GPIO_CTL_CTL9 BITS(18,19) /*!< pin 9 configuration bits */
+#define GPIO_CTL_CTL10 BITS(20,21) /*!< pin 10 configuration bits */
+#define GPIO_CTL_CTL11 BITS(22,23) /*!< pin 11 configuration bits */
+#define GPIO_CTL_CTL12 BITS(24,25) /*!< pin 12 configuration bits */
+#define GPIO_CTL_CTL13 BITS(26,27) /*!< pin 13 configuration bits */
+#define GPIO_CTL_CTL14 BITS(28,29) /*!< pin 14 configuration bits */
+#define GPIO_CTL_CTL15 BITS(30,31) /*!< pin 15 configuration bits */
+
+/* GPIO_OMODE */
+#define GPIO_OMODE_OM0 BIT(0) /*!< pin 0 output mode bit */
+#define GPIO_OMODE_OM1 BIT(1) /*!< pin 1 output mode bit */
+#define GPIO_OMODE_OM2 BIT(2) /*!< pin 2 output mode bit */
+#define GPIO_OMODE_OM3 BIT(3) /*!< pin 3 output mode bit */
+#define GPIO_OMODE_OM4 BIT(4) /*!< pin 4 output mode bit */
+#define GPIO_OMODE_OM5 BIT(5) /*!< pin 5 output mode bit */
+#define GPIO_OMODE_OM6 BIT(6) /*!< pin 6 output mode bit */
+#define GPIO_OMODE_OM7 BIT(7) /*!< pin 7 output mode bit */
+#define GPIO_OMODE_OM8 BIT(8) /*!< pin 8 output mode bit */
+#define GPIO_OMODE_OM9 BIT(9) /*!< pin 9 output mode bit */
+#define GPIO_OMODE_OM10 BIT(10) /*!< pin 10 output mode bit */
+#define GPIO_OMODE_OM11 BIT(11) /*!< pin 11 output mode bit */
+#define GPIO_OMODE_OM12 BIT(12) /*!< pin 12 output mode bit */
+#define GPIO_OMODE_OM13 BIT(13) /*!< pin 13 output mode bit */
+#define GPIO_OMODE_OM14 BIT(14) /*!< pin 14 output mode bit */
+#define GPIO_OMODE_OM15 BIT(15) /*!< pin 15 output mode bit */
+
+/* GPIO_OSPD */
+#define GPIO_OSPD_OSPD0 BITS(0,1) /*!< pin 0 output max speed bits */
+#define GPIO_OSPD_OSPD1 BITS(2,3) /*!< pin 1 output max speed bits */
+#define GPIO_OSPD_OSPD2 BITS(4,5) /*!< pin 2 output max speed bits */
+#define GPIO_OSPD_OSPD3 BITS(6,7) /*!< pin 3 output max speed bits */
+#define GPIO_OSPD_OSPD4 BITS(8,9) /*!< pin 4 output max speed bits */
+#define GPIO_OSPD_OSPD5 BITS(10,11) /*!< pin 5 output max speed bits */
+#define GPIO_OSPD_OSPD6 BITS(12,13) /*!< pin 6 output max speed bits */
+#define GPIO_OSPD_OSPD7 BITS(14,15) /*!< pin 7 output max speed bits */
+#define GPIO_OSPD_OSPD8 BITS(16,17) /*!< pin 8 output max speed bits */
+#define GPIO_OSPD_OSPD9 BITS(18,19) /*!< pin 9 output max speed bits */
+#define GPIO_OSPD_OSPD10 BITS(20,21) /*!< pin 10 output max speed bits */
+#define GPIO_OSPD_OSPD11 BITS(22,23) /*!< pin 11 output max speed bits */
+#define GPIO_OSPD_OSPD12 BITS(24,25) /*!< pin 12 output max speed bits */
+#define GPIO_OSPD_OSPD13 BITS(26,27) /*!< pin 13 output max speed bits */
+#define GPIO_OSPD_OSPD14 BITS(28,29) /*!< pin 14 output max speed bits */
+#define GPIO_OSPD_OSPD15 BITS(30,31) /*!< pin 15 output max speed bits */
+
+/* GPIO_PUD */
+#define GPIO_PUD_PUD0 BITS(0,1) /*!< pin 0 pull-up or pull-down bits */
+#define GPIO_PUD_PUD1 BITS(2,3) /*!< pin 1 pull-up or pull-down bits */
+#define GPIO_PUD_PUD2 BITS(4,5) /*!< pin 2 pull-up or pull-down bits */
+#define GPIO_PUD_PUD3 BITS(6,7) /*!< pin 3 pull-up or pull-down bits */
+#define GPIO_PUD_PUD4 BITS(8,9) /*!< pin 4 pull-up or pull-down bits */
+#define GPIO_PUD_PUD5 BITS(10,11) /*!< pin 5 pull-up or pull-down bits */
+#define GPIO_PUD_PUD6 BITS(12,13) /*!< pin 6 pull-up or pull-down bits */
+#define GPIO_PUD_PUD7 BITS(14,15) /*!< pin 7 pull-up or pull-down bits */
+#define GPIO_PUD_PUD8 BITS(16,17) /*!< pin 8 pull-up or pull-down bits */
+#define GPIO_PUD_PUD9 BITS(18,19) /*!< pin 9 pull-up or pull-down bits */
+#define GPIO_PUD_PUD10 BITS(20,21) /*!< pin 10 pull-up or pull-down bits */
+#define GPIO_PUD_PUD11 BITS(22,23) /*!< pin 11 pull-up or pull-down bits */
+#define GPIO_PUD_PUD12 BITS(24,25) /*!< pin 12 pull-up or pull-down bits */
+#define GPIO_PUD_PUD13 BITS(26,27) /*!< pin 13 pull-up or pull-down bits */
+#define GPIO_PUD_PUD14 BITS(28,29) /*!< pin 14 pull-up or pull-down bits */
+#define GPIO_PUD_PUD15 BITS(30,31) /*!< pin 15 pull-up or pull-down bits */
+
+/* GPIO_ISTAT */
+#define GPIO_ISTAT_ISTAT0 BIT(0) /*!< pin 0 input status */
+#define GPIO_ISTAT_ISTAT1 BIT(1) /*!< pin 1 input status */
+#define GPIO_ISTAT_ISTAT2 BIT(2) /*!< pin 2 input status */
+#define GPIO_ISTAT_ISTAT3 BIT(3) /*!< pin 3 input status */
+#define GPIO_ISTAT_ISTAT4 BIT(4) /*!< pin 4 input status */
+#define GPIO_ISTAT_ISTAT5 BIT(5) /*!< pin 5 input status */
+#define GPIO_ISTAT_ISTAT6 BIT(6) /*!< pin 6 input status */
+#define GPIO_ISTAT_ISTAT7 BIT(7) /*!< pin 7 input status */
+#define GPIO_ISTAT_ISTAT8 BIT(8) /*!< pin 8 input status */
+#define GPIO_ISTAT_ISTAT9 BIT(9) /*!< pin 9 input status */
+#define GPIO_ISTAT_ISTAT10 BIT(10) /*!< pin 10 input status */
+#define GPIO_ISTAT_ISTAT11 BIT(11) /*!< pin 11 input status */
+#define GPIO_ISTAT_ISTAT12 BIT(12) /*!< pin 12 input status */
+#define GPIO_ISTAT_ISTAT13 BIT(13) /*!< pin 13 input status */
+#define GPIO_ISTAT_ISTAT14 BIT(14) /*!< pin 14 input status */
+#define GPIO_ISTAT_ISTAT15 BIT(15) /*!< pin 15 input status */
+
+/* GPIO_OCTL */
+#define GPIO_OCTL_OCTL0 BIT(0) /*!< pin 0 output bit */
+#define GPIO_OCTL_OCTL1 BIT(1) /*!< pin 1 output bit */
+#define GPIO_OCTL_OCTL2 BIT(2) /*!< pin 2 output bit */
+#define GPIO_OCTL_OCTL3 BIT(3) /*!< pin 3 output bit */
+#define GPIO_OCTL_OCTL4 BIT(4) /*!< pin 4 output bit */
+#define GPIO_OCTL_OCTL5 BIT(5) /*!< pin 5 output bit */
+#define GPIO_OCTL_OCTL6 BIT(6) /*!< pin 6 output bit */
+#define GPIO_OCTL_OCTL7 BIT(7) /*!< pin 7 output bit */
+#define GPIO_OCTL_OCTL8 BIT(8) /*!< pin 8 output bit */
+#define GPIO_OCTL_OCTL9 BIT(9) /*!< pin 9 output bit */
+#define GPIO_OCTL_OCTL10 BIT(10) /*!< pin 10 output bit */
+#define GPIO_OCTL_OCTL11 BIT(11) /*!< pin 11 output bit */
+#define GPIO_OCTL_OCTL12 BIT(12) /*!< pin 12 output bit */
+#define GPIO_OCTL_OCTL13 BIT(13) /*!< pin 13 output bit */
+#define GPIO_OCTL_OCTL14 BIT(14) /*!< pin 14 output bit */
+#define GPIO_OCTL_OCTL15 BIT(15) /*!< pin 15 output bit */
+
+/* GPIO_BOP */
+#define GPIO_BOP_BOP0 BIT(0) /*!< pin 0 set bit */
+#define GPIO_BOP_BOP1 BIT(1) /*!< pin 1 set bit */
+#define GPIO_BOP_BOP2 BIT(2) /*!< pin 2 set bit */
+#define GPIO_BOP_BOP3 BIT(3) /*!< pin 3 set bit */
+#define GPIO_BOP_BOP4 BIT(4) /*!< pin 4 set bit */
+#define GPIO_BOP_BOP5 BIT(5) /*!< pin 5 set bit */
+#define GPIO_BOP_BOP6 BIT(6) /*!< pin 6 set bit */
+#define GPIO_BOP_BOP7 BIT(7) /*!< pin 7 set bit */
+#define GPIO_BOP_BOP8 BIT(8) /*!< pin 8 set bit */
+#define GPIO_BOP_BOP9 BIT(9) /*!< pin 9 set bit */
+#define GPIO_BOP_BOP10 BIT(10) /*!< pin 10 set bit */
+#define GPIO_BOP_BOP11 BIT(11) /*!< pin 11 set bit */
+#define GPIO_BOP_BOP12 BIT(12) /*!< pin 12 set bit */
+#define GPIO_BOP_BOP13 BIT(13) /*!< pin 13 set bit */
+#define GPIO_BOP_BOP14 BIT(14) /*!< pin 14 set bit */
+#define GPIO_BOP_BOP15 BIT(15) /*!< pin 15 set bit */
+#define GPIO_BOP_CR0 BIT(16) /*!< pin 0 clear bit */
+#define GPIO_BOP_CR1 BIT(17) /*!< pin 1 clear bit */
+#define GPIO_BOP_CR2 BIT(18) /*!< pin 2 clear bit */
+#define GPIO_BOP_CR3 BIT(19) /*!< pin 3 clear bit */
+#define GPIO_BOP_CR4 BIT(20) /*!< pin 4 clear bit */
+#define GPIO_BOP_CR5 BIT(21) /*!< pin 5 clear bit */
+#define GPIO_BOP_CR6 BIT(22) /*!< pin 6 clear bit */
+#define GPIO_BOP_CR7 BIT(23) /*!< pin 7 clear bit */
+#define GPIO_BOP_CR8 BIT(24) /*!< pin 8 clear bit */
+#define GPIO_BOP_CR9 BIT(25) /*!< pin 9 clear bit */
+#define GPIO_BOP_CR10 BIT(26) /*!< pin 10 clear bit */
+#define GPIO_BOP_CR11 BIT(27) /*!< pin 11 clear bit */
+#define GPIO_BOP_CR12 BIT(28) /*!< pin 12 clear bit */
+#define GPIO_BOP_CR13 BIT(29) /*!< pin 13 clear bit */
+#define GPIO_BOP_CR14 BIT(30) /*!< pin 14 clear bit */
+#define GPIO_BOP_CR15 BIT(31) /*!< pin 15 clear bit */
+
+/* GPIO_LOCK */
+#define GPIO_LOCK_LK0 BIT(0) /*!< pin 0 lock bit */
+#define GPIO_LOCK_LK1 BIT(1) /*!< pin 1 lock bit */
+#define GPIO_LOCK_LK2 BIT(2) /*!< pin 2 lock bit */
+#define GPIO_LOCK_LK3 BIT(3) /*!< pin 3 lock bit */
+#define GPIO_LOCK_LK4 BIT(4) /*!< pin 4 lock bit */
+#define GPIO_LOCK_LK5 BIT(5) /*!< pin 5 lock bit */
+#define GPIO_LOCK_LK6 BIT(6) /*!< pin 6 lock bit */
+#define GPIO_LOCK_LK7 BIT(7) /*!< pin 7 lock bit */
+#define GPIO_LOCK_LK8 BIT(8) /*!< pin 8 lock bit */
+#define GPIO_LOCK_LK9 BIT(9) /*!< pin 9 lock bit */
+#define GPIO_LOCK_LK10 BIT(10) /*!< pin 10 lock bit */
+#define GPIO_LOCK_LK11 BIT(11) /*!< pin 11 lock bit */
+#define GPIO_LOCK_LK12 BIT(12) /*!< pin 12 lock bit */
+#define GPIO_LOCK_LK13 BIT(13) /*!< pin 13 lock bit */
+#define GPIO_LOCK_LK14 BIT(14) /*!< pin 14 lock bit */
+#define GPIO_LOCK_LK15 BIT(15) /*!< pin 15 lock bit */
+#define GPIO_LOCK_LKK BIT(16) /*!< pin sequence lock key */
+
+/* GPIO_AFSEL0 */
+#define GPIO_AFSEL0_SEL0 BITS(0,3) /*!< pin 0 alternate function selected */
+#define GPIO_AFSEL0_SEL1 BITS(4,7) /*!< pin 1 alternate function selected */
+#define GPIO_AFSEL0_SEL2 BITS(8,11) /*!< pin 2 alternate function selected */
+#define GPIO_AFSEL0_SEL3 BITS(12,15) /*!< pin 3 alternate function selected */
+#define GPIO_AFSEL0_SEL4 BITS(16,19) /*!< pin 4 alternate function selected */
+#define GPIO_AFSEL0_SEL5 BITS(20,23) /*!< pin 5 alternate function selected */
+#define GPIO_AFSEL0_SEL6 BITS(24,27) /*!< pin 6 alternate function selected */
+#define GPIO_AFSEL0_SEL7 BITS(28,31) /*!< pin 7 alternate function selected */
+
+/* GPIO_AFSEL1 */
+#define GPIO_AFSEL1_SEL8 BITS(0,3) /*!< pin 8 alternate function selected */
+#define GPIO_AFSEL1_SEL9 BITS(4,7) /*!< pin 9 alternate function selected */
+#define GPIO_AFSEL1_SEL10 BITS(8,11) /*!< pin 10 alternate function selected */
+#define GPIO_AFSEL1_SEL11 BITS(12,15) /*!< pin 11 alternate function selected */
+#define GPIO_AFSEL1_SEL12 BITS(16,19) /*!< pin 12 alternate function selected */
+#define GPIO_AFSEL1_SEL13 BITS(20,23) /*!< pin 13 alternate function selected */
+#define GPIO_AFSEL1_SEL14 BITS(24,27) /*!< pin 14 alternate function selected */
+#define GPIO_AFSEL1_SEL15 BITS(28,31) /*!< pin 15 alternate function selected */
+
+/* GPIO_BC */
+#define GPIO_BC_CR0 BIT(0) /*!< pin 0 clear bit */
+#define GPIO_BC_CR1 BIT(1) /*!< pin 1 clear bit */
+#define GPIO_BC_CR2 BIT(2) /*!< pin 2 clear bit */
+#define GPIO_BC_CR3 BIT(3) /*!< pin 3 clear bit */
+#define GPIO_BC_CR4 BIT(4) /*!< pin 4 clear bit */
+#define GPIO_BC_CR5 BIT(5) /*!< pin 5 clear bit */
+#define GPIO_BC_CR6 BIT(6) /*!< pin 6 clear bit */
+#define GPIO_BC_CR7 BIT(7) /*!< pin 7 clear bit */
+#define GPIO_BC_CR8 BIT(8) /*!< pin 8 clear bit */
+#define GPIO_BC_CR9 BIT(9) /*!< pin 9 clear bit */
+#define GPIO_BC_CR10 BIT(10) /*!< pin 10 clear bit */
+#define GPIO_BC_CR11 BIT(11) /*!< pin 11 clear bit */
+#define GPIO_BC_CR12 BIT(12) /*!< pin 12 clear bit */
+#define GPIO_BC_CR13 BIT(13) /*!< pin 13 clear bit */
+#define GPIO_BC_CR14 BIT(14) /*!< pin 14 clear bit */
+#define GPIO_BC_CR15 BIT(15) /*!< pin 15 clear bit */
+
+/* GPIO_TG */
+#define GPIO_TG_TG0 BIT(0) /*!< pin 0 toggle bit */
+#define GPIO_TG_TG1 BIT(1) /*!< pin 1 toggle bit */
+#define GPIO_TG_TG2 BIT(2) /*!< pin 2 toggle bit */
+#define GPIO_TG_TG3 BIT(3) /*!< pin 3 toggle bit */
+#define GPIO_TG_TG4 BIT(4) /*!< pin 4 toggle bit */
+#define GPIO_TG_TG5 BIT(5) /*!< pin 5 toggle bit */
+#define GPIO_TG_TG6 BIT(6) /*!< pin 6 toggle bit */
+#define GPIO_TG_TG7 BIT(7) /*!< pin 7 toggle bit */
+#define GPIO_TG_TG8 BIT(8) /*!< pin 8 toggle bit */
+#define GPIO_TG_TG9 BIT(9) /*!< pin 9 toggle bit */
+#define GPIO_TG_TG10 BIT(10) /*!< pin 10 toggle bit */
+#define GPIO_TG_TG11 BIT(11) /*!< pin 11 toggle bit */
+#define GPIO_TG_TG12 BIT(12) /*!< pin 12 toggle bit */
+#define GPIO_TG_TG13 BIT(13) /*!< pin 13 toggle bit */
+#define GPIO_TG_TG14 BIT(14) /*!< pin 14 toggle bit */
+#define GPIO_TG_TG15 BIT(15) /*!< pin 15 toggle bit */
+
+/* constants definitions */
+typedef FlagStatus bit_status;
+
+/* output mode definitions */
+#define CTL_CLTR(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
+#define GPIO_MODE_INPUT CTL_CLTR(0) /*!< input mode */
+#define GPIO_MODE_OUTPUT CTL_CLTR(1) /*!< output mode */
+#define GPIO_MODE_AF CTL_CLTR(2) /*!< alternate function mode */
+#define GPIO_MODE_ANALOG CTL_CLTR(3) /*!< analog mode */
+
+/* pull-up/pull-down definitions */
+#define PUD_PUPD(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
+#define GPIO_PUPD_NONE PUD_PUPD(0) /*!< floating mode, no pull-up and pull-down resistors */
+#define GPIO_PUPD_PULLUP PUD_PUPD(1) /*!< with pull-up resistor */
+#define GPIO_PUPD_PULLDOWN PUD_PUPD(2) /*!< with pull-down resistor */
+
+/* GPIO pin definitions */
+#define GPIO_PIN_0 BIT(0) /*!< GPIO pin 0 */
+#define GPIO_PIN_1 BIT(1) /*!< GPIO pin 1 */
+#define GPIO_PIN_2 BIT(2) /*!< GPIO pin 2 */
+#define GPIO_PIN_3 BIT(3) /*!< GPIO pin 3 */
+#define GPIO_PIN_4 BIT(4) /*!< GPIO pin 4 */
+#define GPIO_PIN_5 BIT(5) /*!< GPIO pin 5 */
+#define GPIO_PIN_6 BIT(6) /*!< GPIO pin 6 */
+#define GPIO_PIN_7 BIT(7) /*!< GPIO pin 7 */
+#define GPIO_PIN_8 BIT(8) /*!< GPIO pin 8 */
+#define GPIO_PIN_9 BIT(9) /*!< GPIO pin 9 */
+#define GPIO_PIN_10 BIT(10) /*!< GPIO pin 10 */
+#define GPIO_PIN_11 BIT(11) /*!< GPIO pin 11 */
+#define GPIO_PIN_12 BIT(12) /*!< GPIO pin 12 */
+#define GPIO_PIN_13 BIT(13) /*!< GPIO pin 13 */
+#define GPIO_PIN_14 BIT(14) /*!< GPIO pin 14 */
+#define GPIO_PIN_15 BIT(15) /*!< GPIO pin 15 */
+#define GPIO_PIN_ALL BITS(0,15) /*!< GPIO pin all */
+
+/* GPIO mode configuration values */
+#define GPIO_MODE_SET(n, mode) ((uint32_t)((uint32_t)(mode) << (2U * (n))))
+#define GPIO_MODE_MASK(n) (0x3U << (2U * (n)))
+
+/* GPIO pull-up/pull-down values */
+#define GPIO_PUPD_SET(n, pupd) ((uint32_t)((uint32_t)(pupd) << (2U * (n))))
+#define GPIO_PUPD_MASK(n) (0x3U << (2U * (n)))
+
+/* GPIO output speed values */
+#define GPIO_OSPEED_SET(n, speed) ((uint32_t)((uint32_t)(speed) << (2U * (n))))
+#define GPIO_OSPEED_MASK(n) (0x3U << (2U * (n)))
+
+/* GPIO output type */
+#define GPIO_OTYPE_PP ((uint8_t)(0x00U)) /*!< push pull mode */
+#define GPIO_OTYPE_OD ((uint8_t)(0x01U)) /*!< open drain mode */
+
+/* GPIO output max speed value */
+#define OSPD_OSPD0(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
+#define GPIO_OSPEED_2MHZ OSPD_OSPD0(0) /*!< output max speed 2MHz */
+#define GPIO_OSPEED_10MHZ OSPD_OSPD0(1) /*!< output max speed 10MHz */
+#define GPIO_OSPEED_50MHZ OSPD_OSPD0(3) /*!< output max speed 50MHz */
+
+/* GPIO alternate function values */
+#define GPIO_AFR_SET(n, af) ((uint32_t)((uint32_t)(af) << (4U * (n))))
+#define GPIO_AFR_MASK(n) (0xFU << (4U * (n)))
+
+/* GPIO alternate function */
+#define AF(regval) (BITS(0,3) & ((uint32_t)(regval) << 0))
+#define GPIO_AF_0 AF(0) /*!< alternate function 0 selected */
+#define GPIO_AF_1 AF(1) /*!< alternate function 1 selected */
+#define GPIO_AF_2 AF(2) /*!< alternate function 2 selected */
+#define GPIO_AF_3 AF(3) /*!< alternate function 3 selected */
+#define GPIO_AF_4 AF(4) /*!< alternate function 4 selected (port A,B only) */
+#define GPIO_AF_5 AF(5) /*!< alternate function 5 selected (port A,B only) */
+#define GPIO_AF_6 AF(6) /*!< alternate function 6 selected (port A,B only) */
+#define GPIO_AF_7 AF(7) /*!< alternate function 7 selected (port A,B only) */
+
+/* function declarations */
+/* reset GPIO port */
+void gpio_deinit(uint32_t gpio_periph);
+/* set GPIO mode */
+void gpio_mode_set(uint32_t gpio_periph, uint32_t mode, uint32_t pull_up_down, uint32_t pin);
+/* set GPIO output type and speed */
+void gpio_output_options_set(uint32_t gpio_periph, uint8_t otype, uint32_t speed, uint32_t pin);
+
+/* set GPIO pin bit */
+void gpio_bit_set(uint32_t gpio_periph, uint32_t pin);
+/* reset GPIO pin bit */
+void gpio_bit_reset(uint32_t gpio_periph, uint32_t pin);
+/* write data to the specified GPIO pin */
+void gpio_bit_write(uint32_t gpio_periph, uint32_t pin, bit_status bit_value);
+/* write data to the specified GPIO port */
+void gpio_port_write(uint32_t gpio_periph, uint16_t data);
+
+/* get GPIO pin input status */
+FlagStatus gpio_input_bit_get(uint32_t gpio_periph, uint32_t pin);
+/* get GPIO port input status */
+uint16_t gpio_input_port_get(uint32_t gpio_periph);
+/* get GPIO pin output status */
+FlagStatus gpio_output_bit_get(uint32_t gpio_periph, uint32_t pin);
+/* get GPIO port output status */
+uint16_t gpio_output_port_get(uint32_t gpio_periph);
+
+/* set GPIO alternate function */
+void gpio_af_set(uint32_t gpio_periph,uint32_t alt_func_num, uint32_t pin);
+/* lock GPIO pin bit */
+void gpio_pin_lock(uint32_t gpio_periph, uint32_t pin);
+
+/* toggle GPIO pin status */
+void gpio_bit_toggle(uint32_t gpio_periph, uint32_t pin);
+/* toggle GPIO port status */
+void gpio_port_toggle(uint32_t gpio_periph);
+
+#endif /* GD32E230_GPIO_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_i2c.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_i2c.h
new file mode 100644
index 0000000000..ab07d46987
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_i2c.h
@@ -0,0 +1,389 @@
+/*!
+ \file gd32e230_i2c.h
+ \brief definitions for the I2C
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_I2C_H
+#define GD32E230_I2C_H
+
+#include "gd32e230.h"
+
+/* I2Cx(x=0,1) definitions */
+#define I2C0 I2C_BASE /*!< I2C0 base address */
+#define I2C1 (I2C_BASE+0x400U) /*!< I2C1 base address */
+
+/* registers definitions */
+#define I2C_CTL0(i2cx) REG32((i2cx) + 0x00U) /*!< I2C control register 0 */
+#define I2C_CTL1(i2cx) REG32((i2cx) + 0x04U) /*!< I2C control register 1 */
+#define I2C_SADDR0(i2cx) REG32((i2cx) + 0x08U) /*!< I2C slave address register 0*/
+#define I2C_SADDR1(i2cx) REG32((i2cx) + 0x0CU) /*!< I2C slave address register */
+#define I2C_DATA(i2cx) REG32((i2cx) + 0x10U) /*!< I2C transfer buffer register */
+#define I2C_STAT0(i2cx) REG32((i2cx) + 0x14U) /*!< I2C transfer status register 0 */
+#define I2C_STAT1(i2cx) REG32((i2cx) + 0x18U) /*!< I2C transfer status register */
+#define I2C_CKCFG(i2cx) REG32((i2cx) + 0x1CU) /*!< I2C clock configure register */
+#define I2C_RT(i2cx) REG32((i2cx) + 0x20U) /*!< I2C rise time register */
+#define I2C_SAMCS(i2cx) REG32((i2cx) + 0x80U) /*!< I2C SAM control and status register */
+#define I2C_FMPCFG(i2cx) REG32((i2cx) + 0x90U) /*!< I2C fast-mode-plus configure register */
+
+/* bits definitions */
+/* I2Cx_CTL0 */
+#define I2C_CTL0_I2CEN BIT(0) /*!< peripheral enable */
+#define I2C_CTL0_SMBEN BIT(1) /*!< SMBus mode */
+#define I2C_CTL0_SMBSEL BIT(3) /*!< SMBus type */
+#define I2C_CTL0_ARPEN BIT(4) /*!< ARP enable */
+#define I2C_CTL0_PECEN BIT(5) /*!< PEC enable */
+#define I2C_CTL0_GCEN BIT(6) /*!< general call enable */
+#define I2C_CTL0_SS BIT(7) /*!< clock stretching disable (slave mode) */
+#define I2C_CTL0_START BIT(8) /*!< start generation */
+#define I2C_CTL0_STOP BIT(9) /*!< stop generation */
+#define I2C_CTL0_ACKEN BIT(10) /*!< acknowledge enable */
+#define I2C_CTL0_POAP BIT(11) /*!< acknowledge/PEC position (for data reception) */
+#define I2C_CTL0_PECTRANS BIT(12) /*!< packet error checking */
+#define I2C_CTL0_SALT BIT(13) /*!< SMBus alert */
+#define I2C_CTL0_SRESET BIT(15) /*!< software reset */
+
+/* I2Cx_CTL1 */
+#define I2C_CTL1_I2CCLK BITS(0,6) /*!< I2CCLK[6:0] bits (peripheral clock frequency) */
+#define I2C_CTL1_ERRIE BIT(8) /*!< error interrupt inable */
+#define I2C_CTL1_EVIE BIT(9) /*!< event interrupt enable */
+#define I2C_CTL1_BUFIE BIT(10) /*!< buffer interrupt enable */
+#define I2C_CTL1_DMAON BIT(11) /*!< DMA requests enable */
+#define I2C_CTL1_DMALST BIT(12) /*!< DMA last transfer */
+
+/* I2Cx_SADDR0 */
+#define I2C_SADDR0_ADDRESS0 BIT(0) /*!< bit 0 of a 10-bit address */
+#define I2C_SADDR0_ADDRESS BITS(1,7) /*!< 7-bit address or bits 7:1 of a 10-bit address */
+#define I2C_SADDR0_ADDRESS_H BITS(8,9) /*!< highest two bits of a 10-bit address */
+#define I2C_SADDR0_ADDFORMAT BIT(15) /*!< address mode for the I2C slave */
+
+/* I2Cx_SADDR1 */
+#define I2C_SADDR1_DUADEN BIT(0) /*!< aual-address mode switch */
+#define I2C_SADDR1_ADDRESS2 BITS(1,7) /*!< second I2C address for the slave in dual-address mode */
+
+/* I2Cx_DATA */
+#define I2C_DATA_TRB BITS(0,7) /*!< 8-bit data register */
+
+/* I2Cx_STAT0 */
+#define I2C_STAT0_SBSEND BIT(0) /*!< start bit (master mode) */
+#define I2C_STAT0_ADDSEND BIT(1) /*!< address sent (master mode)/matched (slave mode) */
+#define I2C_STAT0_BTC BIT(2) /*!< byte transfer finished */
+#define I2C_STAT0_ADD10SEND BIT(3) /*!< 10-bit header sent (master mode) */
+#define I2C_STAT0_STPDET BIT(4) /*!< stop detection (slave mode) */
+#define I2C_STAT0_RBNE BIT(6) /*!< data register not empty (receivers) */
+#define I2C_STAT0_TBE BIT(7) /*!< data register empty (transmitters) */
+#define I2C_STAT0_BERR BIT(8) /*!< bus error */
+#define I2C_STAT0_LOSTARB BIT(9) /*!< arbitration lost (master mode) */
+#define I2C_STAT0_AERR BIT(10) /*!< acknowledge failure */
+#define I2C_STAT0_OUERR BIT(11) /*!< overrun/underrun */
+#define I2C_STAT0_PECERR BIT(12) /*!< PEC error in reception */
+#define I2C_STAT0_SMBTO BIT(14) /*!< timeout signal in SMBus mode */
+#define I2C_STAT0_SMBALT BIT(15) /*!< SMBus alert status */
+
+/* I2Cx_STAT1 */
+#define I2C_STAT1_MASTER BIT(0) /*!< master/slave */
+#define I2C_STAT1_I2CBSY BIT(1) /*!< bus busy */
+#define I2C_STAT1_TR BIT(2) /*!< transmitter/receiver */
+#define I2C_STAT1_RXGC BIT(4) /*!< general call address (slave mode) */
+#define I2C_STAT1_DEFSMB BIT(5) /*!< SMBus device default address (slave mode) */
+#define I2C_STAT1_HSTSMB BIT(6) /*!< SMBus host header (slave mode) */
+#define I2C_STAT1_DUMODF BIT(7) /*!< dual flag (slave mode) */
+#define I2C_STAT1_PECV BITS(8,15) /*!< packet error checking value */
+
+/* I2Cx_CKCFG */
+#define I2C_CKCFG_CLKC BITS(0,11) /*!< clock control register in fast/standard mode or fast mode plus(master mode) */
+#define I2C_CKCFG_DTCY BIT(14) /*!< duty cycle of fast mode or fast mode plus */
+#define I2C_CKCFG_FAST BIT(15) /*!< I2C speed selection in master mode */
+
+/* I2Cx_RT */
+#define I2C_RT_RISETIME BITS(0,6) /*!< maximum rise time in fast/standard mode or fast mode plus(master mode) */
+
+/* I2Cx_SAMCS */
+#define I2C_SAMCS_SAMEN BIT(0) /*!< SAM_V interface enable */
+#define I2C_SAMCS_STOEN BIT(1) /*!< SAM_V interface timeout detect enable */
+#define I2C_SAMCS_TFFIE BIT(4) /*!< txframe fall interrupt enable */
+#define I2C_SAMCS_TFRIE BIT(5) /*!< txframe rise interrupt enable */
+#define I2C_SAMCS_RFFIE BIT(6) /*!< rxframe fall interrupt enable */
+#define I2C_SAMCS_RFRIE BIT(7) /*!< rxframe rise interrupt enable */
+#define I2C_SAMCS_TXF BIT(8) /*!< level of txframe signal */
+#define I2C_SAMCS_RXF BIT(9) /*!< level of rxframe signal */
+#define I2C_SAMCS_TFF BIT(12) /*!< txframe fall flag */
+#define I2C_SAMCS_TFR BIT(13) /*!< txframe rise flag */
+#define I2C_SAMCS_RFF BIT(14) /*!< rxframe fall flag */
+#define I2C_SAMCS_RFR BIT(15) /*!< rxframe rise flag */
+
+/* I2Cx_FMPCFG */
+#define I2C_FMPCFG_FMPEN BIT(0) /*!< fast mode plus enable bit */
+
+/* constants definitions */
+/* define the I2C bit position and its register index offset */
+#define I2C_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
+#define I2C_REG_VAL(i2cx, offset) (REG32((i2cx) + (((uint32_t)(offset) & 0xFFFFU) >> 6)))
+#define I2C_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
+#define I2C_REGIDX_BIT2(regidx, bitpos, regidx2, bitpos2) (((uint32_t)(regidx2) << 22) | (uint32_t)((bitpos2) << 16)\
+ | (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos)))
+#define I2C_REG_VAL2(i2cx, offset) (REG32((i2cx) + ((uint32_t)(offset) >> 22)))
+#define I2C_BIT_POS2(val) (((uint32_t)(val) & 0x1F0000U) >> 16)
+
+/* register offset */
+#define I2C_CTL1_REG_OFFSET 0x04U /*!< CTL1 register offset */
+#define I2C_STAT0_REG_OFFSET 0x14U /*!< STAT0 register offset */
+#define I2C_STAT1_REG_OFFSET 0x18U /*!< STAT1 register offset */
+#define I2C_SAMCS_REG_OFFSET 0x80U /*!< SAMCS register offset */
+
+/* I2C flags */
+typedef enum
+{
+ /* flags in STAT0 register */
+ I2C_FLAG_SBSEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 0U), /*!< start condition sent out in master mode */
+ I2C_FLAG_ADDSEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 1U), /*!< address is sent in master mode or received and matches in slave mode */
+ I2C_FLAG_BTC = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 2U), /*!< byte transmission finishes */
+ I2C_FLAG_ADD10SEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 3U), /*!< header of 10-bit address is sent in master mode */
+ I2C_FLAG_STPDET = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 4U), /*!< stop condition detected in slave mode */
+ I2C_FLAG_RBNE = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 6U), /*!< I2C_DATA is not Empty during receiving */
+ I2C_FLAG_TBE = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 7U), /*!< I2C_DATA is empty during transmitting */
+ I2C_FLAG_BERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 8U), /*!< a bus error occurs indication a unexpected start or stop condition on I2C bus */
+ I2C_FLAG_LOSTARB = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 9U), /*!< arbitration lost in master mode */
+ I2C_FLAG_AERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 10U), /*!< acknowledge error */
+ I2C_FLAG_OUERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 11U), /*!< over-run or under-run situation occurs in slave mode */
+ I2C_FLAG_PECERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 12U), /*!< PEC error when receiving data */
+ I2C_FLAG_SMBTO = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 14U), /*!< timeout signal in SMBus mode */
+ I2C_FLAG_SMBALT = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 15U), /*!< SMBus alert status */
+ /* flags in STAT1 register */
+ I2C_FLAG_MASTER = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 0U), /*!< a flag indicating whether I2C block is in master or slave mode */
+ I2C_FLAG_I2CBSY = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 1U), /*!< busy flag */
+ I2C_FLAG_TR = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 2U), /*!< whether the I2C is a transmitter or a receiver */
+ I2C_FLAG_RXGC = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 4U), /*!< general call address (00h) received */
+ I2C_FLAG_DEFSMB = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 5U), /*!< default address of SMBus device */
+ I2C_FLAG_HSTSMB = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 6U), /*!< SMBus host header detected in slave mode */
+ I2C_FLAG_DUMOD = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 7U), /*!< dual flag in slave mode indicating which address is matched in dual-address mode */
+ /* flags in SAMCS register */
+ I2C_FLAG_TFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 12U), /*!< txframe fall flag */
+ I2C_FLAG_TFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 13U), /*!< txframe rise flag */
+ I2C_FLAG_RFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 14U), /*!< rxframe fall flag */
+ I2C_FLAG_RFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 15U) /*!< rxframe rise flag */
+}i2c_flag_enum;
+
+/* I2C interrupt flags */
+typedef enum
+{
+ /* interrupt flags in CTL1 register */
+ I2C_INT_FLAG_SBSEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 0U), /*!< start condition sent out in master mode interrupt flag */
+ I2C_INT_FLAG_ADDSEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 1U), /*!< address is sent in master mode or received and matches in slave mode interrupt flag */
+ I2C_INT_FLAG_BTC = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 2U), /*!< byte transmission finishes */
+ I2C_INT_FLAG_ADD10SEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 3U), /*!< header of 10-bit address is sent in master mode interrupt flag */
+ I2C_INT_FLAG_STPDET = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 4U), /*!< stop condition detected in slave mode interrupt flag */
+ I2C_INT_FLAG_RBNE = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 6U), /*!< I2C_DATA is not Empty during receiving interrupt flag */
+ I2C_INT_FLAG_TBE = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 7U), /*!< I2C_DATA is empty during transmitting interrupt flag */
+ I2C_INT_FLAG_BERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 8U), /*!< a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag */
+ I2C_INT_FLAG_LOSTARB = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 9U), /*!< arbitration lost in master mode interrupt flag */
+ I2C_INT_FLAG_AERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 10U), /*!< acknowledge error interrupt flag */
+ I2C_INT_FLAG_OUERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 11U), /*!< over-run or under-run situation occurs in slave mode interrupt flag */
+ I2C_INT_FLAG_PECERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 12U), /*!< PEC error when receiving data interrupt flag */
+ I2C_INT_FLAG_SMBTO = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 14U), /*!< timeout signal in SMBus mode interrupt flag */
+ I2C_INT_FLAG_SMBALT = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 15U), /*!< SMBus Alert status interrupt flag */
+ /* interrupt flags in SAMCS register */
+ I2C_INT_FLAG_TFF = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 4U, I2C_SAMCS_REG_OFFSET, 12U), /*!< txframe fall interrupt flag */
+ I2C_INT_FLAG_TFR = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 5U, I2C_SAMCS_REG_OFFSET, 13U), /*!< txframe rise interrupt flag */
+ I2C_INT_FLAG_RFF = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 6U, I2C_SAMCS_REG_OFFSET, 14U), /*!< rxframe fall interrupt flag */
+ I2C_INT_FLAG_RFR = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 7U, I2C_SAMCS_REG_OFFSET, 15U) /*!< rxframe rise interrupt flag */
+}i2c_interrupt_flag_enum;
+
+/* I2C interrupt enable or disable */
+typedef enum
+{
+ /* interrupt in CTL1 register */
+ I2C_INT_ERR = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 8U), /*!< error interrupt enable */
+ I2C_INT_EV = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 9U), /*!< event interrupt enable */
+ I2C_INT_BUF = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 10U), /*!< buffer interrupt enable */
+ /* interrupt in SAMCS register */
+ I2C_INT_TFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 4U), /*!< txframe fall interrupt enable */
+ I2C_INT_TFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 5U), /*!< txframe rise interrupt enable */
+ I2C_INT_RFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 6U), /*!< rxframe fall interrupt enable */
+ I2C_INT_RFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 7U) /*!< rxframe rise interrupt enable */
+}i2c_interrupt_enum;
+
+/* SMBus/I2C mode switch and SMBus type selection */
+#define I2C_I2CMODE_ENABLE ((uint32_t)0x00000000U) /*!< I2C mode */
+#define I2C_SMBUSMODE_ENABLE I2C_CTL0_SMBEN /*!< SMBus mode */
+
+/* SMBus/I2C mode switch and SMBus type selection */
+#define I2C_SMBUS_DEVICE ((uint32_t)0x00000000U) /*!< SMBus mode device type */
+#define I2C_SMBUS_HOST I2C_CTL0_SMBSEL /*!< SMBus mode host type */
+
+/* I2C transfer direction */
+#define I2C_RECEIVER ((uint32_t)0x00000001U) /*!< receiver */
+#define I2C_TRANSMITTER ((uint32_t)0xFFFFFFFEU) /*!< transmitter */
+
+/* whether or not to send an ACK */
+#define I2C_ACK_DISABLE ((uint32_t)0x00000000U) /*!< ACK will be not sent */
+#define I2C_ACK_ENABLE ((uint32_t)0x00000001U) /*!< ACK will be sent */
+
+/* I2C POAP position*/
+#define I2C_ACKPOS_NEXT ((uint32_t)0x00000000U) /*!< ACKEN bit decides whether or not to send ACK for the next byte */
+#define I2C_ACKPOS_CURRENT ((uint32_t)0x00000001U) /*!< ACKEN bit decides whether or not to send ACK or not for the current byte */
+
+/* whether or not to stretch SCL low */
+#define I2C_SCLSTRETCH_ENABLE I2C_CTL0_SS /*!< SCL stretching is enabled */
+#define I2C_SCLSTRETCH_DISABLE ((uint32_t)0x00000000U) /*!< SCL stretching is disabled */
+
+/* whether or not to response to a general call */
+#define I2C_GCEN_ENABLE I2C_CTL0_GCEN /*!< slave will response to a general call */
+#define I2C_GCEN_DISABLE ((uint32_t)0x00000000U) /*!< slave will not response to a general call */
+
+/* software reset I2C */
+#define I2C_SRESET_SET I2C_CTL0_SRESET /*!< I2C is under reset */
+#define I2C_SRESET_RESET ((uint32_t)0x00000000U) /*!< I2C is not under reset */
+
+/* I2C DMA mode configure */
+/* DMA mode switch */
+#define I2C_DMA_ON I2C_CTL1_DMAON /*!< DMA mode enabled */
+#define I2C_DMA_OFF ((uint32_t)0x00000000U) /*!< DMA mode disabled */
+
+/* flag indicating DMA last transfer */
+#define I2C_DMALST_ON I2C_CTL1_DMALST /*!< next DMA EOT is the last transfer */
+#define I2C_DMALST_OFF ((uint32_t)0x00000000U) /*!< next DMA EOT is not the last transfer */
+
+/* I2C PEC configure */
+/* PEC enable */
+#define I2C_PEC_ENABLE I2C_CTL0_PECEN /*!< PEC calculation on */
+#define I2C_PEC_DISABLE ((uint32_t)0x00000000U) /*!< PEC calculation off */
+
+/* PEC transfer */
+#define I2C_PECTRANS_ENABLE I2C_CTL0_PECTRANS /*!< transfer PEC */
+#define I2C_PECTRANS_DISABLE ((uint32_t)0x00000000U) /*!< not transfer PEC value */
+
+/* I2C SMBus configure */
+/* issue or not alert through SMBA pin */
+#define I2C_SALTSEND_ENABLE I2C_CTL0_SALT /*!< issue alert through SMBA pin */
+#define I2C_SALTSEND_DISABLE ((uint32_t)0x00000000U) /*!< not issue alert through SMBA */
+
+/* ARP protocol in SMBus switch */
+#define I2C_ARP_ENABLE I2C_CTL0_ARPEN /*!< ARP enable */
+#define I2C_ARP_DISABLE ((uint32_t)0x00000000U) /*!< ARP disable */
+
+/* fast mode plus enable */
+#define I2C_FAST_MODE_PLUS_ENABLE I2C_FMPCFG_FMPEN /*!< fast mode plus enable */
+#define I2C_FAST_MODE_PLUS_DISABLE ((uint32_t)0x00000000U) /*!< fast mode plus disable */
+
+/* transmit I2C data */
+#define DATA_TRANS(regval) (BITS(0,7) & ((uint32_t)(regval) << 0))
+
+/* receive I2C data */
+#define DATA_RECV(regval) GET_BITS((uint32_t)(regval), 0, 7)
+
+/* I2C duty cycle in fast mode or fast mode plus */
+#define I2C_DTCY_2 ((uint32_t)0x00000000U) /*!< in I2C fast mode or fast mode plus Tlow/Thigh = 2 */
+#define I2C_DTCY_16_9 I2C_CKCFG_DTCY /*!< in I2C fast mode or fast mode plus Tlow/Thigh = 16/9 */
+
+/* address mode for the I2C slave */
+#define I2C_ADDFORMAT_7BITS ((uint32_t)0x00000000U) /*!< address:7 bits */
+#define I2C_ADDFORMAT_10BITS I2C_SADDR0_ADDFORMAT /*!< address:10 bits */
+
+/* function declarations */
+/* reset I2C */
+void i2c_deinit(uint32_t i2c_periph);
+/* configure I2C clock */
+void i2c_clock_config(uint32_t i2c_periph, uint32_t clkspeed, uint32_t dutycyc);
+/* configure I2C address */
+void i2c_mode_addr_config(uint32_t i2c_periph, uint32_t mode, uint32_t addformat, uint32_t addr);
+/* SMBus type selection */
+void i2c_smbus_type_config(uint32_t i2c_periph, uint32_t type);
+/* whether or not to send an ACK */
+void i2c_ack_config(uint32_t i2c_periph, uint32_t ack);
+/* configure I2C POAP position */
+void i2c_ackpos_config(uint32_t i2c_periph, uint32_t pos);
+/* master sends slave address */
+void i2c_master_addressing(uint32_t i2c_periph, uint32_t addr, uint32_t trandirection);
+/* enable dual-address mode */
+void i2c_dualaddr_enable(uint32_t i2c_periph, uint32_t addr);
+/* disable dual-address mode */
+void i2c_dualaddr_disable(uint32_t i2c_periph);
+/* enable I2C */
+void i2c_enable(uint32_t i2c_periph);
+/* disable I2C */
+void i2c_disable(uint32_t i2c_periph);
+
+/* generate a START condition on I2C bus */
+void i2c_start_on_bus(uint32_t i2c_periph);
+/* generate a STOP condition on I2C bus */
+void i2c_stop_on_bus(uint32_t i2c_periph);
+/* I2C transmit data function */
+void i2c_data_transmit(uint32_t i2c_periph, uint8_t data);
+/* I2C receive data function */
+uint8_t i2c_data_receive(uint32_t i2c_periph);
+/* enable I2C DMA mode */
+void i2c_dma_enable(uint32_t i2c_periph, uint32_t dmastate);
+/* configure whether next DMA EOT is DMA last transfer or not */
+void i2c_dma_last_transfer_config(uint32_t i2c_periph, uint32_t dmalast);
+/* whether to stretch SCL low when data is not ready in slave mode */
+void i2c_stretch_scl_low_config(uint32_t i2c_periph, uint32_t stretchpara);
+/* whether or not to response to a general call */
+void i2c_slave_response_to_gcall_config(uint32_t i2c_periph, uint32_t gcallpara);
+/* software reset I2C */
+void i2c_software_reset_config(uint32_t i2c_periph, uint32_t sreset);
+
+/* I2C PEC calculation on or off */
+void i2c_pec_enable(uint32_t i2c_periph, uint32_t pecstate);
+/* I2C whether to transfer PEC value */
+void i2c_pec_transfer_enable(uint32_t i2c_periph, uint32_t pecpara);
+/* packet error checking value */
+uint8_t i2c_pec_value_get(uint32_t i2c_periph);
+/* I2C issue alert through SMBA pin */
+void i2c_smbus_issue_alert(uint32_t i2c_periph, uint32_t smbuspara);
+/* I2C ARP protocol in SMBus switch */
+void i2c_smbus_arp_enable(uint32_t i2c_periph, uint32_t arpstate);
+
+/* enable SAM_V interface */
+void i2c_sam_enable(uint32_t i2c_periph);
+/* disable SAM_V interface */
+void i2c_sam_disable(uint32_t i2c_periph);
+/* enable SAM_V interface timeout detect */
+void i2c_sam_timeout_enable(uint32_t i2c_periph);
+/* disable SAM_V interface timeout detect */
+void i2c_sam_timeout_disable(uint32_t i2c_periph);
+
+/* check I2C flag is set or not */
+FlagStatus i2c_flag_get(uint32_t i2c_periph, i2c_flag_enum flag);
+/* clear I2C flag */
+void i2c_flag_clear(uint32_t i2c_periph, i2c_flag_enum flag);
+/* enable I2C interrupt */
+void i2c_interrupt_enable(uint32_t i2c_periph, i2c_interrupt_enum interrupt);
+/* disable I2C interrupt */
+void i2c_interrupt_disable(uint32_t i2c_periph, i2c_interrupt_enum interrupt);
+/* check I2C interrupt flag */
+FlagStatus i2c_interrupt_flag_get(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag);
+/* clear I2C interrupt flag */
+void i2c_interrupt_flag_clear(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag);
+
+#endif /* GD32E230_I2C_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_misc.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_misc.h
new file mode 100644
index 0000000000..4bc91a9600
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_misc.h
@@ -0,0 +1,86 @@
+/*!
+ \file gd32e230_misc.h
+ \brief definitions for the MISC
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_MISC_H
+#define GD32E230_MISC_H
+
+#include "gd32e230.h"
+
+/* constants definitions */
+/* set the RAM and FLASH base address */
+#define NVIC_VECTTAB_RAM ((uint32_t)0x20000000) /*!< RAM base address */
+#define NVIC_VECTTAB_FLASH ((uint32_t)0x08000000) /*!< Flash base address */
+
+/* set the NVIC vector table offset mask */
+#define NVIC_VECTTAB_OFFSET_MASK ((uint32_t)0x1FFFFF80) /*!< NVIC vector table offset mask */
+
+/* the register key mask, if you want to do the write operation, you should write 0x5FA to VECTKEY bits */
+#define NVIC_AIRCR_VECTKEY_MASK ((uint32_t)0x05FA0000) /*!< NVIC VECTKEY mask */
+
+/* choose the method to enter or exit the lowpower mode */
+#define SCB_SCR_SLEEPONEXIT ((uint8_t)0x02) /*!< choose the the system whether enter low power mode by exiting from ISR */
+#define SCB_SCR_SLEEPDEEP ((uint8_t)0x04) /*!< choose the the system enter the DEEPSLEEP mode or SLEEP mode */
+#define SCB_SCR_SEVONPEND ((uint8_t)0x10) /*!< choose the interrupt source that can wake up the lowpower mode */
+
+#define SCB_LPM_SLEEP_EXIT_ISR SCB_SCR_SLEEPONEXIT /*!< low power mode by exiting from ISR */
+#define SCB_LPM_DEEPSLEEP SCB_SCR_SLEEPDEEP /*!< DEEPSLEEP mode or SLEEP mode */
+#define SCB_LPM_WAKE_BY_ALL_INT SCB_SCR_SEVONPEND /*!< wakeup by all interrupt */
+
+/* choose the systick clock source */
+#define SYSTICK_CLKSOURCE_HCLK_DIV8 ((uint32_t)0xFFFFFFFBU) /*!< systick clock source is from HCLK/8 */
+#define SYSTICK_CLKSOURCE_HCLK ((uint32_t)0x00000004U) /*!< systick clock source is from HCLK */
+
+/* function declarations */
+
+/* enable NVIC request */
+void nvic_irq_enable(uint8_t nvic_irq, uint8_t nvic_irq_priority);
+/* disable NVIC request */
+void nvic_irq_disable(uint8_t nvic_irq);
+/* initiates a system reset request to reset the MCU */
+void nvic_system_reset(void);
+
+/* set the NVIC vector table base address */
+void nvic_vector_table_set(uint32_t nvic_vict_tab, uint32_t offset);
+
+/* set the state of the low power mode */
+void system_lowpower_set(uint8_t lowpower_mode);
+/* reset the state of the low power mode */
+void system_lowpower_reset(uint8_t lowpower_mode);
+
+/* set the systick clock source */
+void systick_clksource_set(uint32_t systick_clksource);
+
+#endif /* GD32E230_MISC_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_pmu.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_pmu.h
new file mode 100644
index 0000000000..1db5b1fb47
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_pmu.h
@@ -0,0 +1,146 @@
+/*!
+ \file gd32e230_pmu.h
+ \brief definitions for the PMU
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_PMU_H
+#define GD32E230_PMU_H
+
+#include "gd32e230.h"
+
+/* PMU definitions */
+#define PMU PMU_BASE /*!< PMU base address */
+
+/* registers definitions */
+#define PMU_CTL REG32((PMU) + 0x00U) /*!< PMU control register */
+#define PMU_CS REG32((PMU) + 0x04U) /*!< PMU control and status register */
+
+/* bits definitions */
+/* PMU_CTL */
+#define PMU_CTL_LDOLP BIT(0) /*!< LDO low power mode */
+#define PMU_CTL_STBMOD BIT(1) /*!< standby mode */
+#define PMU_CTL_WURST BIT(2) /*!< wakeup flag reset */
+#define PMU_CTL_STBRST BIT(3) /*!< standby flag reset */
+#define PMU_CTL_LVDEN BIT(4) /*!< low voltage detector enable */
+#define PMU_CTL_LVDT BITS(5,7) /*!< low voltage detector threshold */
+#define PMU_CTL_BKPWEN BIT(8) /*!< backup domain write enable */
+#define PMU_CTL_LDOVS_0 BIT(14) /*!< LDO output voltage select */
+#define PMU_CTL_LDOVS_1 BIT(15) /*!< LDO output voltage select */
+#define PMU_CTL_LDOVS BITS(14,15) /*!< LDO output voltage select */
+
+/* PMU_CS */
+#define PMU_CS_WUF BIT(0) /*!< wakeup flag */
+#define PMU_CS_STBF BIT(1) /*!< standby flag */
+#define PMU_CS_LVDF BIT(2) /*!< low voltage detector status flag */
+#define PMU_CS_WUPEN0 BIT(8) /*!< wakeup pin enable */
+#define PMU_CS_WUPEN1 BIT(9) /*!< wakeup pin enable */
+#define PMU_CS_WUPEN5 BIT(13) /*!< wakeup pin enable */
+#define PMU_CS_WUPEN6 BIT(14) /*!< wakeup pin enable */
+
+/* constants definitions */
+/* PMU low voltage detector threshold definitions */
+#define CTL_LVDT(regval) (BITS(5,7)&((uint32_t)(regval)<<5))
+#define PMU_LVDT_0 CTL_LVDT(0) /*!< voltage threshold is 2.1V */
+#define PMU_LVDT_1 CTL_LVDT(1) /*!< voltage threshold is 2.3V */
+#define PMU_LVDT_2 CTL_LVDT(2) /*!< voltage threshold is 2.4V */
+#define PMU_LVDT_3 CTL_LVDT(3) /*!< voltage threshold is 2.6V */
+#define PMU_LVDT_4 CTL_LVDT(4) /*!< voltage threshold is 2.7V */
+#define PMU_LVDT_5 CTL_LVDT(5) /*!< voltage threshold is 2.9V */
+#define PMU_LVDT_6 CTL_LVDT(6) /*!< voltage threshold is 3.0V */
+#define PMU_LVDT_7 CTL_LVDT(7) /*!< voltage threshold is 3.1V */
+
+/* PMU LDO output voltage select definitions */
+#define CTL_LDOVS(regval) (BITS(14,15)&((uint32_t)(regval)<<14))
+#define PMU_LDOVS_HIGH CTL_LDOVS(1) /*!< LDO output voltage high mode */
+#define PMU_LDOVS_LOW CTL_LDOVS(2) /*!< LDO output voltage low mode */
+
+/* PMU ldo definitions */
+#define PMU_LDO_NORMAL ((uint32_t)0x00000000U) /*!< LDO operates normally when PMU enter deepsleep mode */
+#define PMU_LDO_LOWPOWER PMU_CTL_LDOLP /*!< LDO work at low power status when PMU enter deepsleep mode */
+
+/* PMU flag definitions */
+#define PMU_FLAG_WAKEUP PMU_CS_WUF /*!< wakeup flag status */
+#define PMU_FLAG_STANDBY PMU_CS_STBF /*!< standby flag status */
+#define PMU_FLAG_LVD PMU_CS_LVDF /*!< LVD flag status */
+
+/* PMU WKUP pin definitions */
+#define PMU_WAKEUP_PIN0 PMU_CS_WUPEN0 /*!< WKUP Pin 0 (PA0) enable */
+#define PMU_WAKEUP_PIN1 PMU_CS_WUPEN1 /*!< WKUP Pin 1 (PC13) enable */
+#define PMU_WAKEUP_PIN5 PMU_CS_WUPEN5 /*!< WKUP Pin 5 (PB5) enable */
+#define PMU_WAKEUP_PIN6 PMU_CS_WUPEN6 /*!< WKUP Pin 6 (PB15) enable */
+
+/* PMU flag reset definitions */
+#define PMU_FLAG_RESET_WAKEUP PMU_CTL_WURST /*!< wakeup flag reset */
+#define PMU_FLAG_RESET_STANDBY PMU_CTL_STBRST /*!< standby flag reset */
+
+/* PMU command constants definitions */
+#define WFI_CMD ((uint8_t)0x00U) /*!< use WFI command */
+#define WFE_CMD ((uint8_t)0x01U) /*!< use WFE command */
+
+/* function declarations */
+/* reset PMU registers */
+void pmu_deinit(void);
+
+/* select low voltage detector threshold */
+void pmu_lvd_select(uint32_t lvdt_n);
+/* select LDO output voltage */
+void pmu_ldo_output_select(uint32_t ldo_output);
+/* disable PMU lvd */
+void pmu_lvd_disable(void);
+
+/* set PMU mode */
+/* PMU work in sleep mode */
+void pmu_to_sleepmode(uint8_t sleepmodecmd);
+/* PMU work in deepsleep mode */
+void pmu_to_deepsleepmode(uint32_t ldo, uint8_t deepsleepmodecmd);
+/* PMU work in standby mode */
+void pmu_to_standbymode(uint8_t standbymodecmd);
+/* enable PMU wakeup pin */
+void pmu_wakeup_pin_enable(uint32_t wakeup_pin);
+/* disable PMU wakeup pin */
+void pmu_wakeup_pin_disable(uint32_t wakeup_pin);
+
+/* backup related functions */
+/* enable backup domain write */
+void pmu_backup_write_enable(void);
+/* disable backup domain write */
+void pmu_backup_write_disable(void);
+
+/* flag functions */
+/* clear flag bit */
+void pmu_flag_clear(uint32_t flag_clear);
+/* get flag state */
+FlagStatus pmu_flag_get(uint32_t flag);
+
+#endif /* GD32E230_PMU_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rcu.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rcu.h
new file mode 100644
index 0000000000..53f2e34e34
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rcu.h
@@ -0,0 +1,672 @@
+/*!
+ \file gd32e230_rcu.h
+ \brief definitions for the RCU
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_RCU_H
+#define GD32E230_RCU_H
+
+#include "gd32e230.h"
+
+/* RCU definitions */
+#define RCU RCU_BASE
+
+/* registers definitions */
+#define RCU_CTL0 REG32(RCU + 0x00U) /*!< control register 0 */
+#define RCU_CFG0 REG32(RCU + 0x04U) /*!< configuration register 0 */
+#define RCU_INT REG32(RCU + 0x08U) /*!< interrupt register */
+#define RCU_APB2RST REG32(RCU + 0x0CU) /*!< APB2 reset register */
+#define RCU_APB1RST REG32(RCU + 0x10U) /*!< APB1 reset register */
+#define RCU_AHBEN REG32(RCU + 0x14U) /*!< AHB enable register */
+#define RCU_APB2EN REG32(RCU + 0x18U) /*!< APB2 enable register */
+#define RCU_APB1EN REG32(RCU + 0x1CU) /*!< APB1 enable register */
+#define RCU_BDCTL REG32(RCU + 0x20U) /*!< backup domain control register */
+#define RCU_RSTSCK REG32(RCU + 0x24U) /*!< reset source /clock register */
+#define RCU_AHBRST REG32(RCU + 0x28U) /*!< AHB reset register */
+#define RCU_CFG1 REG32(RCU + 0x2CU) /*!< configuration register 1 */
+#define RCU_CFG2 REG32(RCU + 0x30U) /*!< configuration register 2 */
+#define RCU_CTL1 REG32(RCU + 0x34U) /*!< control register 1 */
+#define RCU_VKEY REG32(RCU + 0x100U) /*!< voltage key register */
+#define RCU_DSV REG32(RCU + 0x134U) /*!< deep-sleep mode voltage register */
+
+/* bits definitions */
+/* RCU_CTL0 */
+#define RCU_CTL0_IRC8MEN BIT(0) /*!< internal high speed oscillator enable */
+#define RCU_CTL0_IRC8MSTB BIT(1) /*!< IRC8M high speed internal oscillator stabilization flag */
+#define RCU_CTL0_IRC8MADJ BITS(3,7) /*!< high speed internal oscillator clock trim adjust value */
+#define RCU_CTL0_IRC8MCALIB BITS(8,15) /*!< high speed internal oscillator calibration value register */
+#define RCU_CTL0_HXTALEN BIT(16) /*!< external high speed oscillator enable */
+#define RCU_CTL0_HXTALSTB BIT(17) /*!< external crystal oscillator clock stabilization flag */
+#define RCU_CTL0_HXTALBPS BIT(18) /*!< external crystal oscillator clock bypass mode enable */
+#define RCU_CTL0_CKMEN BIT(19) /*!< HXTAL clock monitor enable */
+#define RCU_CTL0_PLLEN BIT(24) /*!< PLL enable */
+#define RCU_CTL0_PLLSTB BIT(25) /*!< PLL clock stabilization flag */
+
+/* RCU_CFG0 */
+#define RCU_CFG0_SCS BITS(0,1) /*!< system clock switch */
+#define RCU_CFG0_SCSS BITS(2,3) /*!< system clock switch status */
+#define RCU_CFG0_AHBPSC BITS(4,7) /*!< AHB prescaler selection */
+#define RCU_CFG0_APB1PSC BITS(8,10) /*!< APB1 prescaler selection */
+#define RCU_CFG0_APB2PSC BITS(11,13) /*!< APB2 prescaler selection */
+#define RCU_CFG0_ADCPSC BITS(14,15) /*!< ADC clock prescaler selection */
+#define RCU_CFG0_PLLSEL BIT(16) /*!< PLL clock source selection */
+#define RCU_CFG0_PLLPREDV BIT(17) /*!< divider for PLL source clock selection */
+#define RCU_CFG0_PLLMF (BIT(27) | BITS(18,21)) /*!< PLL multiply factor */
+#define RCU_CFG0_CKOUTSEL BITS(24,26) /*!< CK_OUT clock source selection */
+#define RCU_CFG0_PLLMF4 BIT(27) /*!< bit 4 of PLLMF */
+#define RCU_CFG0_CKOUTDIV BITS(28,30) /*!< CK_OUT divider which the CK_OUT frequency can be reduced */
+#define RCU_CFG0_PLLDV BIT(31) /*!< CK_PLL divide by 1 or 2 */
+
+/* RCU_INT */
+#define RCU_INT_IRC40KSTBIF BIT(0) /*!< IRC40K stabilization interrupt flag */
+#define RCU_INT_LXTALSTBIF BIT(1) /*!< LXTAL stabilization interrupt flag */
+#define RCU_INT_IRC8MSTBIF BIT(2) /*!< IRC8M stabilization interrupt flag */
+#define RCU_INT_HXTALSTBIF BIT(3) /*!< HXTAL stabilization interrupt flag */
+#define RCU_INT_PLLSTBIF BIT(4) /*!< PLL stabilization interrupt flag */
+#define RCU_INT_IRC28MSTBIF BIT(5) /*!< IRC28M stabilization interrupt flag */
+#define RCU_INT_CKMIF BIT(7) /*!< HXTAL clock stuck interrupt flag */
+#define RCU_INT_IRC40KSTBIE BIT(8) /*!< IRC40K stabilization interrupt enable */
+#define RCU_INT_LXTALSTBIE BIT(9) /*!< LXTAL stabilization interrupt enable */
+#define RCU_INT_IRC8MSTBIE BIT(10) /*!< IRC8M stabilization interrupt enable */
+#define RCU_INT_HXTALSTBIE BIT(11) /*!< HXTAL stabilization interrupt enable */
+#define RCU_INT_PLLSTBIE BIT(12) /*!< PLL stabilization interrupt enable */
+#define RCU_INT_IRC28MSTBIE BIT(13) /*!< IRC28M stabilization interrupt enable */
+#define RCU_INT_IRC40KSTBIC BIT(16) /*!< IRC40K stabilization interrupt clear */
+#define RCU_INT_LXTALSTBIC BIT(17) /*!< LXTAL stabilization interrupt clear */
+#define RCU_INT_IRC8MSTBIC BIT(18) /*!< IRC8M stabilization interrupt clear */
+#define RCU_INT_HXTALSTBIC BIT(19) /*!< HXTAL stabilization interrupt clear */
+#define RCU_INT_PLLSTBIC BIT(20) /*!< PLL stabilization interrupt clear */
+#define RCU_INT_IRC28MSTBIC BIT(21) /*!< IRC28M stabilization interrupt clear */
+#define RCU_INT_CKMIC BIT(23) /*!< HXTAL clock stuck interrupt clear */
+
+/* RCU_APB2RST */
+#define RCU_APB2RST_CFGRST BIT(0) /*!< system configuration reset */
+#define RCU_APB2RST_ADCRST BIT(9) /*!< ADC reset */
+#define RCU_APB2RST_TIMER0RST BIT(11) /*!< TIMER0 reset */
+#define RCU_APB2RST_SPI0RST BIT(12) /*!< SPI0 reset */
+#define RCU_APB2RST_USART0RST BIT(14) /*!< USART0 reset */
+#define RCU_APB2RST_TIMER14RST BIT(16) /*!< TIMER14 reset */
+#define RCU_APB2RST_TIMER15RST BIT(17) /*!< TIMER15 reset */
+#define RCU_APB2RST_TIMER16RST BIT(18) /*!< TIMER16 reset */
+
+/* RCU_APB1RST */
+#define RCU_APB1RST_TIMER2RST BIT(1) /*!< TIMER2 timer reset */
+#define RCU_APB1RST_TIMER5RST BIT(4) /*!< TIMER5 timer reset */
+#define RCU_APB1RST_TIMER13RST BIT(8) /*!< TIMER13 timer reset */
+#define RCU_APB1RST_WWDGTRST BIT(11) /*!< window watchdog timer reset */
+#define RCU_APB1RST_SPI1RST BIT(14) /*!< SPI1 reset */
+#define RCU_APB1RST_USART1RST BIT(17) /*!< USART1 reset */
+#define RCU_APB1RST_I2C0RST BIT(21) /*!< I2C0 reset */
+#define RCU_APB1RST_I2C1RST BIT(22) /*!< I2C1 reset */
+#define RCU_APB1RST_PMURST BIT(28) /*!< power control reset */
+
+/* RCU_AHBEN */
+#define RCU_AHBEN_DMAEN BIT(0) /*!< DMA clock enable */
+#define RCU_AHBEN_SRAMSPEN BIT(2) /*!< SRAM interface clock enable */
+#define RCU_AHBEN_FMCSPEN BIT(4) /*!< FMC clock enable */
+#define RCU_AHBEN_CRCEN BIT(6) /*!< CRC clock enable */
+#define RCU_AHBEN_PAEN BIT(17) /*!< GPIO port A clock enable */
+#define RCU_AHBEN_PBEN BIT(18) /*!< GPIO port B clock enable */
+#define RCU_AHBEN_PCEN BIT(19) /*!< GPIO port C clock enable */
+#define RCU_AHBEN_PFEN BIT(22) /*!< GPIO port F clock enable */
+
+/* RCU_APB2EN */
+#define RCU_APB2EN_CFGCMPEN BIT(0) /*!< system configuration and comparator clock enable */
+#define RCU_APB2EN_ADCEN BIT(9) /*!< ADC interface clock enable */
+#define RCU_APB2EN_TIMER0EN BIT(11) /*!< TIMER0 timer clock enable */
+#define RCU_APB2EN_SPI0EN BIT(12) /*!< SPI0 clock enable */
+#define RCU_APB2EN_USART0EN BIT(14) /*!< USART0 clock enable */
+#define RCU_APB2EN_TIMER14EN BIT(16) /*!< TIMER14 timer clock enable */
+#define RCU_APB2EN_TIMER15EN BIT(17) /*!< TIMER15 timer clock enable */
+#define RCU_APB2EN_TIMER16EN BIT(18) /*!< TIMER16 timer clock enable */
+#define RCU_APB2EN_DBGMCUEN BIT(22) /*!< DBGMCU clock enable */
+
+/* RCU_APB1EN */
+#define RCU_APB1EN_TIMER2EN BIT(1) /*!< TIMER2 timer clock enable */
+#define RCU_APB1EN_TIMER5EN BIT(4) /*!< TIMER5 timer clock enable */
+#define RCU_APB1EN_TIMER13EN BIT(8) /*!< TIMER13 timer clock enable */
+#define RCU_APB1EN_WWDGTEN BIT(11) /*!< window watchdog timer clock enable */
+#define RCU_APB1EN_SPI1EN BIT(14) /*!< SPI1 clock enable */
+#define RCU_APB1EN_USART1EN BIT(17) /*!< USART1 clock enable */
+#define RCU_APB1EN_I2C0EN BIT(21) /*!< I2C0 clock enable */
+#define RCU_APB1EN_I2C1EN BIT(22) /*!< I2C1 clock enable */
+#define RCU_APB1EN_PMUEN BIT(28) /*!< power interface clock enable */
+
+/* RCU_BDCTL */
+#define RCU_BDCTL_LXTALEN BIT(0) /*!< LXTAL enable */
+#define RCU_BDCTL_LXTALSTB BIT(1) /*!< external low-speed oscillator stabilization */
+#define RCU_BDCTL_LXTALBPS BIT(2) /*!< LXTAL bypass mode enable */
+#define RCU_BDCTL_LXTALDRI BITS(3,4) /*!< LXTAL drive capability */
+#define RCU_BDCTL_RTCSRC BITS(8,9) /*!< RTC clock entry selection */
+#define RCU_BDCTL_RTCEN BIT(15) /*!< RTC clock enable */
+#define RCU_BDCTL_BKPRST BIT(16) /*!< backup domain reset */
+
+/* RCU_RSTSCK */
+#define RCU_RSTSCK_IRC40KEN BIT(0) /*!< IRC40K enable */
+#define RCU_RSTSCK_IRC40KSTB BIT(1) /*!< IRC40K stabilization */
+#define RCU_RSTSCK_V12RSTF BIT(23) /*!< V12 domain power reset flag */
+#define RCU_RSTSCK_RSTFC BIT(24) /*!< reset flag clear */
+#define RCU_RSTSCK_OBLRSTF BIT(25) /*!< option byte loader reset flag */
+#define RCU_RSTSCK_EPRSTF BIT(26) /*!< external pin reset flag */
+#define RCU_RSTSCK_PORRSTF BIT(27) /*!< power reset flag */
+#define RCU_RSTSCK_SWRSTF BIT(28) /*!< software reset flag */
+#define RCU_RSTSCK_FWDGTRSTF BIT(29) /*!< free watchdog timer reset flag */
+#define RCU_RSTSCK_WWDGTRSTF BIT(30) /*!< window watchdog timer reset flag */
+#define RCU_RSTSCK_LPRSTF BIT(31) /*!< low-power reset flag */
+
+/* RCU_AHBRST */
+#define RCU_AHBRST_PARST BIT(17) /*!< GPIO port A reset */
+#define RCU_AHBRST_PBRST BIT(18) /*!< GPIO port B reset */
+#define RCU_AHBRST_PCRST BIT(19) /*!< GPIO port C reset */
+#define RCU_AHBRST_PFRST BIT(22) /*!< GPIO port F reset */
+
+/* RCU_CFG1 */
+#define RCU_CFG1_PREDV BITS(0,3) /*!< CK_HXTAL divider previous PLL */
+
+/* RCU_CFG2 */
+#define RCU_CFG2_USART0SEL BITS(0,1) /*!< CK_USART0 clock source selection */
+#define RCU_CFG2_ADCSEL BIT(8) /*!< CK_ADC clock source selection */
+#define RCU_CFG2_IRC28MDIV BIT(16) /*!< CK_IRC28M divider 2 or not */
+#define RCU_CFG2_ADCPSC2 BIT(31) /*!< bit 2 of ADCPSC */
+
+/* RCU_CTL1 */
+#define RCU_CTL1_IRC28MEN BIT(0) /*!< IRC28M internal 28M RC oscillator enable */
+#define RCU_CTL1_IRC28MSTB BIT(1) /*!< IRC28M internal 28M RC oscillator stabilization flag */
+#define RCU_CTL1_IRC28MADJ BITS(3,7) /*!< internal 28M RC oscillator clock trim adjust value */
+#define RCU_CTL1_IRC28MCALIB BITS(8,15) /*!< internal 28M RC oscillator calibration value register */
+
+/* RCU_VKEY */
+#define RCU_VKEY_KEY BITS(0,31) /*!< key of RCU_DSV register */
+
+/* RCU_DSV */
+#define RCU_DSV_DSLPVS BITS(0,1) /*!< deep-sleep mode voltage select */
+
+/* constants definitions */
+/* define the peripheral clock enable bit position and its register index offset */
+#define RCU_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx)<<6) | (uint32_t)(bitpos))
+#define RCU_REG_VAL(periph) (REG32(RCU + ((uint32_t)(periph)>>6)))
+#define RCU_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
+/* define the voltage key unlock value */
+#define RCU_VKEY_UNLOCK ((uint32_t)0x1A2B3C4D)
+
+/* register index */
+typedef enum
+{
+ /* peripherals enable */
+ IDX_AHBEN = 0x14U,
+ IDX_APB2EN = 0x18U,
+ IDX_APB1EN = 0x1CU,
+ /* peripherals reset */
+ IDX_AHBRST = 0x28U,
+ IDX_APB2RST = 0x0CU,
+ IDX_APB1RST = 0x10U,
+ /* clock stabilization */
+ IDX_CTL0 = 0x00U,
+ IDX_BDCTL = 0x20U,
+ IDX_CTL1 = 0x34U,
+ /* peripheral reset */
+ IDX_RSTSCK = 0x24U,
+ /* clock stabilization and stuck interrupt */
+ IDX_INT = 0x08U,
+ /* configuration register */
+ IDX_CFG0 = 0x04U,
+ IDX_CFG2 = 0x30U
+}reg_idx;
+
+/* peripheral clock enable */
+typedef enum
+{
+ /* AHB peripherals */
+ RCU_DMA = RCU_REGIDX_BIT(IDX_AHBEN, 0U), /*!< DMA clock */
+ RCU_CRC = RCU_REGIDX_BIT(IDX_AHBEN, 6U), /*!< CRC clock */
+ RCU_GPIOA = RCU_REGIDX_BIT(IDX_AHBEN, 17U), /*!< GPIOA clock */
+ RCU_GPIOB = RCU_REGIDX_BIT(IDX_AHBEN, 18U), /*!< GPIOB clock */
+ RCU_GPIOC = RCU_REGIDX_BIT(IDX_AHBEN, 19U), /*!< GPIOC clock */
+ RCU_GPIOF = RCU_REGIDX_BIT(IDX_AHBEN, 22U), /*!< GPIOF clock */
+
+ /* APB2 peripherals */
+ RCU_CFGCMP = RCU_REGIDX_BIT(IDX_APB2EN, 0U), /*!< CFGCMP clock */
+ RCU_ADC = RCU_REGIDX_BIT(IDX_APB2EN, 9U), /*!< ADC clock */
+ RCU_TIMER0 = RCU_REGIDX_BIT(IDX_APB2EN, 11U), /*!< TIMER0 clock */
+ RCU_SPI0 = RCU_REGIDX_BIT(IDX_APB2EN, 12U), /*!< SPI0 clock */
+ RCU_USART0 = RCU_REGIDX_BIT(IDX_APB2EN, 14U), /*!< USART0 clock */
+ RCU_TIMER14 = RCU_REGIDX_BIT(IDX_APB2EN, 16U), /*!< TIMER14 clock */
+ RCU_TIMER15 = RCU_REGIDX_BIT(IDX_APB2EN, 17U), /*!< TIMER15 clock */
+ RCU_TIMER16 = RCU_REGIDX_BIT(IDX_APB2EN, 18U), /*!< TIMER16 clock */
+ RCU_DBGMCU = RCU_REGIDX_BIT(IDX_APB2EN, 22U), /*!< DBGMCU clock */
+
+ /* APB1 peripherals */
+ RCU_TIMER2 = RCU_REGIDX_BIT(IDX_APB1EN, 1U), /*!< TIMER2 clock */
+ RCU_TIMER5 = RCU_REGIDX_BIT(IDX_APB1EN, 4U), /*!< TIMER5 clock */
+ RCU_TIMER13 = RCU_REGIDX_BIT(IDX_APB1EN, 8U), /*!< TIMER13 clock */
+ RCU_WWDGT = RCU_REGIDX_BIT(IDX_APB1EN, 11U), /*!< WWDGT clock */
+ RCU_SPI1 = RCU_REGIDX_BIT(IDX_APB1EN, 14U), /*!< SPI1 clock */
+ RCU_USART1 = RCU_REGIDX_BIT(IDX_APB1EN, 17U), /*!< USART1 clock */
+ RCU_I2C0 = RCU_REGIDX_BIT(IDX_APB1EN, 21U), /*!< I2C0 clock */
+ RCU_I2C1 = RCU_REGIDX_BIT(IDX_APB1EN, 22U), /*!< I2C1 clock */
+ RCU_PMU = RCU_REGIDX_BIT(IDX_APB1EN, 28U), /*!< PMU clock */
+
+ /* Backup domain control(BDCTL) */
+ RCU_RTC = RCU_REGIDX_BIT(IDX_BDCTL, 15U) /*!< RTC clock */
+}rcu_periph_enum;
+
+/* peripheral clock enable when sleep mode*/
+typedef enum
+{
+ /* AHB peripherals */
+ RCU_SRAM_SLP = RCU_REGIDX_BIT(IDX_AHBEN, 2U), /*!< SRAM clock */
+ RCU_FMC_SLP = RCU_REGIDX_BIT(IDX_AHBEN, 4U), /*!< FMC clock */
+}rcu_periph_sleep_enum;
+
+/* peripherals reset */
+typedef enum
+{
+ /* AHB peripherals reset */
+ RCU_GPIOARST = RCU_REGIDX_BIT(IDX_AHBRST, 17U), /*!< GPIOA reset */
+ RCU_GPIOBRST = RCU_REGIDX_BIT(IDX_AHBRST, 18U), /*!< GPIOB reset */
+ RCU_GPIOCRST = RCU_REGIDX_BIT(IDX_AHBRST, 19U), /*!< GPIOC reset */
+ RCU_GPIOFRST = RCU_REGIDX_BIT(IDX_AHBRST, 22U), /*!< GPIOF reset */
+
+ /* APB2 peripherals reset */
+ RCU_CFGCMPRST = RCU_REGIDX_BIT(IDX_APB2RST, 0U), /*!< CFGCMP reset */
+ RCU_ADCRST = RCU_REGIDX_BIT(IDX_APB2RST, 9U), /*!< ADC reset */
+ RCU_TIMER0RST = RCU_REGIDX_BIT(IDX_APB2RST, 11U), /*!< TIMER0 reset */
+ RCU_SPI0RST = RCU_REGIDX_BIT(IDX_APB2RST, 12U), /*!< SPI0 reset */
+ RCU_USART0RST = RCU_REGIDX_BIT(IDX_APB2RST, 14U), /*!< USART0 reset */
+ RCU_TIMER14RST = RCU_REGIDX_BIT(IDX_APB2RST, 16U), /*!< TIMER14 reset */
+ RCU_TIMER15RST = RCU_REGIDX_BIT(IDX_APB2RST, 17U), /*!< TIMER15 reset */
+ RCU_TIMER16RST = RCU_REGIDX_BIT(IDX_APB2RST, 18U), /*!< TIMER16 reset */
+
+ /* APB1 peripherals reset */
+ RCU_TIMER2RST = RCU_REGIDX_BIT(IDX_APB1RST, 1U), /*!< TIMER2 reset */
+ RCU_TIMER5RST = RCU_REGIDX_BIT(IDX_APB1RST, 4U), /*!< TIMER5 reset */
+ RCU_TIMER13RST = RCU_REGIDX_BIT(IDX_APB1RST, 8U), /*!< TIMER13 reset */
+ RCU_WWDGTRST = RCU_REGIDX_BIT(IDX_APB1RST, 11U), /*!< WWDGT reset */
+ RCU_SPI1RST = RCU_REGIDX_BIT(IDX_APB1RST, 14U), /*!< SPI1 reset */
+ RCU_USART1RST = RCU_REGIDX_BIT(IDX_APB1RST, 17U), /*!< USART1 reset */
+ RCU_I2C0RST = RCU_REGIDX_BIT(IDX_APB1RST, 21U), /*!< I2C0 reset */
+ RCU_I2C1RST = RCU_REGIDX_BIT(IDX_APB1RST, 22U), /*!< I2C1 reset */
+ RCU_PMURST = RCU_REGIDX_BIT(IDX_APB1RST, 28U), /*!< PMU reset */
+}rcu_periph_reset_enum;
+
+/* clock stabilization and peripheral reset flags */
+typedef enum
+{
+ RCU_FLAG_IRC40KSTB = RCU_REGIDX_BIT(IDX_RSTSCK, 1U), /*!< IRC40K stabilization flags */
+ RCU_FLAG_LXTALSTB = RCU_REGIDX_BIT(IDX_BDCTL, 1U), /*!< LXTAL stabilization flags */
+ RCU_FLAG_IRC8MSTB = RCU_REGIDX_BIT(IDX_CTL0, 1U), /*!< IRC8M stabilization flags */
+ RCU_FLAG_HXTALSTB = RCU_REGIDX_BIT(IDX_CTL0, 17U), /*!< HXTAL stabilization flags */
+ RCU_FLAG_PLLSTB = RCU_REGIDX_BIT(IDX_CTL0, 25U), /*!< PLL stabilization flags */
+ RCU_FLAG_IRC28MSTB = RCU_REGIDX_BIT(IDX_CTL1, 1U), /*!< IRC28M stabilization flags */
+
+ RCU_FLAG_V12RST = RCU_REGIDX_BIT(IDX_RSTSCK, 23U), /*!< V12 reset flags */
+ RCU_FLAG_OBLRST = RCU_REGIDX_BIT(IDX_RSTSCK, 25U), /*!< OBL reset flags */
+ RCU_FLAG_EPRST = RCU_REGIDX_BIT(IDX_RSTSCK, 26U), /*!< EPR reset flags */
+ RCU_FLAG_PORRST = RCU_REGIDX_BIT(IDX_RSTSCK, 27U), /*!< power reset flags */
+ RCU_FLAG_SWRST = RCU_REGIDX_BIT(IDX_RSTSCK, 28U), /*!< SW reset flags */
+ RCU_FLAG_FWDGTRST = RCU_REGIDX_BIT(IDX_RSTSCK, 29U), /*!< FWDGT reset flags */
+ RCU_FLAG_WWDGTRST = RCU_REGIDX_BIT(IDX_RSTSCK, 30U), /*!< WWDGT reset flags */
+ RCU_FLAG_LPRST = RCU_REGIDX_BIT(IDX_RSTSCK, 31U) /*!< LP reset flags */
+}rcu_flag_enum;
+
+/* clock stabilization and ckm interrupt flags */
+typedef enum
+{
+ RCU_INT_FLAG_IRC40KSTB = RCU_REGIDX_BIT(IDX_INT, 0U), /*!< IRC40K stabilization interrupt flag */
+ RCU_INT_FLAG_LXTALSTB = RCU_REGIDX_BIT(IDX_INT, 1U), /*!< LXTAL stabilization interrupt flag */
+ RCU_INT_FLAG_IRC8MSTB = RCU_REGIDX_BIT(IDX_INT, 2U), /*!< IRC8M stabilization interrupt flag */
+ RCU_INT_FLAG_HXTALSTB = RCU_REGIDX_BIT(IDX_INT, 3U), /*!< HXTAL stabilization interrupt flag */
+ RCU_INT_FLAG_PLLSTB = RCU_REGIDX_BIT(IDX_INT, 4U), /*!< PLL stabilization interrupt flag */
+ RCU_INT_FLAG_IRC28MSTB = RCU_REGIDX_BIT(IDX_INT, 5U), /*!< IRC28M stabilization interrupt flag */
+ RCU_INT_FLAG_CKM = RCU_REGIDX_BIT(IDX_INT, 7U), /*!< CKM interrupt flag */
+}rcu_int_flag_enum;
+
+/* clock stabilization and stuck interrupt flags clear */
+typedef enum
+{
+ RCU_INT_FLAG_IRC40KSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 16U), /*!< IRC40K stabilization interrupt flags clear */
+ RCU_INT_FLAG_LXTALSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 17U), /*!< LXTAL stabilization interrupt flags clear */
+ RCU_INT_FLAG_IRC8MSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 18U), /*!< IRC8M stabilization interrupt flags clear */
+ RCU_INT_FLAG_HXTALSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 19U), /*!< HXTAL stabilization interrupt flags clear */
+ RCU_INT_FLAG_PLLSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 20U), /*!< PLL stabilization interrupt flags clear */
+ RCU_INT_FLAG_IRC28MSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 21U), /*!< IRC28M stabilization interrupt flags clear */
+ RCU_INT_FLAG_CKM_CLR = RCU_REGIDX_BIT(IDX_INT, 23U), /*!< CKM interrupt flags clear */
+}rcu_int_flag_clear_enum;
+
+/* clock stabilization interrupt enable or disable */
+typedef enum
+{
+ RCU_INT_IRC40KSTB = RCU_REGIDX_BIT(IDX_INT, 8U), /*!< IRC40K stabilization interrupt */
+ RCU_INT_LXTALSTB = RCU_REGIDX_BIT(IDX_INT, 9U), /*!< LXTAL stabilization interrupt */
+ RCU_INT_IRC8MSTB = RCU_REGIDX_BIT(IDX_INT, 10U), /*!< IRC8M stabilization interrupt */
+ RCU_INT_HXTALSTB = RCU_REGIDX_BIT(IDX_INT, 11U), /*!< HXTAL stabilization interrupt */
+ RCU_INT_PLLSTB = RCU_REGIDX_BIT(IDX_INT, 12U), /*!< PLL stabilization interrupt */
+ RCU_INT_IRC28MSTB = RCU_REGIDX_BIT(IDX_INT, 13U), /*!< IRC28M stabilization interrupt */
+}rcu_int_enum;
+
+/* ADC clock source */
+typedef enum
+{
+ RCU_ADCCK_IRC28M_DIV2 = 0U, /*!< ADC clock source select IRC28M/2 */
+ RCU_ADCCK_IRC28M, /*!< ADC clock source select IRC28M */
+ RCU_ADCCK_APB2_DIV2, /*!< ADC clock source select APB2/2 */
+ RCU_ADCCK_AHB_DIV3, /*!< ADC clock source select AHB/3 */
+ RCU_ADCCK_APB2_DIV4, /*!< ADC clock source select APB2/4 */
+ RCU_ADCCK_AHB_DIV5, /*!< ADC clock source select AHB/5 */
+ RCU_ADCCK_APB2_DIV6, /*!< ADC clock source select APB2/6 */
+ RCU_ADCCK_AHB_DIV7, /*!< ADC clock source select AHB/7 */
+ RCU_ADCCK_APB2_DIV8, /*!< ADC clock source select APB2/8 */
+ RCU_ADCCK_AHB_DIV9 /*!< ADC clock source select AHB/9 */
+}rcu_adc_clock_enum;
+
+/* oscillator types */
+typedef enum
+{
+ RCU_HXTAL = RCU_REGIDX_BIT(IDX_CTL0, 16U), /*!< HXTAL */
+ RCU_LXTAL = RCU_REGIDX_BIT(IDX_BDCTL, 0U), /*!< LXTAL */
+ RCU_IRC8M = RCU_REGIDX_BIT(IDX_CTL0, 0U), /*!< IRC8M */
+ RCU_IRC28M = RCU_REGIDX_BIT(IDX_CTL1, 0U), /*!< IRC28M */
+ RCU_IRC40K = RCU_REGIDX_BIT(IDX_RSTSCK, 0U), /*!< IRC40K */
+ RCU_PLL_CK = RCU_REGIDX_BIT(IDX_CTL0, 24U) /*!< PLL */
+}rcu_osci_type_enum;
+
+/* rcu clock frequency */
+typedef enum
+{
+ CK_SYS = 0U, /*!< system clock */
+ CK_AHB, /*!< AHB clock */
+ CK_APB1, /*!< APB1 clock */
+ CK_APB2, /*!< APB2 clock */
+ CK_ADC, /*!< ADC clock */
+ CK_USART /*!< USART clock */
+}rcu_clock_freq_enum;
+
+/* system clock source select */
+#define CFG0_SCS(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
+#define RCU_CKSYSSRC_IRC8M CFG0_SCS(0) /*!< system clock source select IRC8M */
+#define RCU_CKSYSSRC_HXTAL CFG0_SCS(1) /*!< system clock source select HXTAL */
+#define RCU_CKSYSSRC_PLL CFG0_SCS(2) /*!< system clock source select PLL */
+
+/* system clock source select status */
+#define CFG0_SCSS(regval) (BITS(2,3) & ((uint32_t)(regval) << 2))
+#define RCU_SCSS_IRC8M CFG0_SCSS(0) /*!< system clock source select IRC8M */
+#define RCU_SCSS_HXTAL CFG0_SCSS(1) /*!< system clock source select HXTAL */
+#define RCU_SCSS_PLL CFG0_SCSS(2) /*!< system clock source select PLL */
+
+/* AHB prescaler selection */
+#define CFG0_AHBPSC(regval) (BITS(4,7) & ((uint32_t)(regval) << 4))
+#define RCU_AHB_CKSYS_DIV1 CFG0_AHBPSC(0) /*!< AHB prescaler select CK_SYS */
+#define RCU_AHB_CKSYS_DIV2 CFG0_AHBPSC(8) /*!< AHB prescaler select CK_SYS/2 */
+#define RCU_AHB_CKSYS_DIV4 CFG0_AHBPSC(9) /*!< AHB prescaler select CK_SYS/4 */
+#define RCU_AHB_CKSYS_DIV8 CFG0_AHBPSC(10) /*!< AHB prescaler select CK_SYS/8 */
+#define RCU_AHB_CKSYS_DIV16 CFG0_AHBPSC(11) /*!< AHB prescaler select CK_SYS/16 */
+#define RCU_AHB_CKSYS_DIV64 CFG0_AHBPSC(12) /*!< AHB prescaler select CK_SYS/64 */
+#define RCU_AHB_CKSYS_DIV128 CFG0_AHBPSC(13) /*!< AHB prescaler select CK_SYS/128 */
+#define RCU_AHB_CKSYS_DIV256 CFG0_AHBPSC(14) /*!< AHB prescaler select CK_SYS/256 */
+#define RCU_AHB_CKSYS_DIV512 CFG0_AHBPSC(15) /*!< AHB prescaler select CK_SYS/512 */
+
+/* APB1 prescaler selection */
+#define CFG0_APB1PSC(regval) (BITS(8,10) & ((uint32_t)(regval) << 8))
+#define RCU_APB1_CKAHB_DIV1 CFG0_APB1PSC(0) /*!< APB1 prescaler select CK_AHB */
+#define RCU_APB1_CKAHB_DIV2 CFG0_APB1PSC(4) /*!< APB1 prescaler select CK_AHB/2 */
+#define RCU_APB1_CKAHB_DIV4 CFG0_APB1PSC(5) /*!< APB1 prescaler select CK_AHB/4 */
+#define RCU_APB1_CKAHB_DIV8 CFG0_APB1PSC(6) /*!< APB1 prescaler select CK_AHB/8 */
+#define RCU_APB1_CKAHB_DIV16 CFG0_APB1PSC(7) /*!< APB1 prescaler select CK_AHB/16 */
+
+/* APB2 prescaler selection */
+#define CFG0_APB2PSC(regval) (BITS(11,13) & ((uint32_t)(regval) << 11))
+#define RCU_APB2_CKAHB_DIV1 CFG0_APB2PSC(0) /*!< APB2 prescaler select CK_AHB */
+#define RCU_APB2_CKAHB_DIV2 CFG0_APB2PSC(4) /*!< APB2 prescaler select CK_AHB/2 */
+#define RCU_APB2_CKAHB_DIV4 CFG0_APB2PSC(5) /*!< APB2 prescaler select CK_AHB/4 */
+#define RCU_APB2_CKAHB_DIV8 CFG0_APB2PSC(6) /*!< APB2 prescaler select CK_AHB/8 */
+#define RCU_APB2_CKAHB_DIV16 CFG0_APB2PSC(7) /*!< APB2 prescaler select CK_AHB/16 */
+
+/* ADC clock prescaler selection */
+#define CFG0_ADCPSC(regval) (BITS(14,15) & ((uint32_t)(regval) << 14))
+#define RCU_ADC_CKAPB2_DIV2 CFG0_ADCPSC(0) /*!< ADC clock prescaler select CK_APB2/2 */
+#define RCU_ADC_CKAPB2_DIV4 CFG0_ADCPSC(1) /*!< ADC clock prescaler select CK_APB2/4 */
+#define RCU_ADC_CKAPB2_DIV6 CFG0_ADCPSC(2) /*!< ADC clock prescaler select CK_APB2/6 */
+#define RCU_ADC_CKAPB2_DIV8 CFG0_ADCPSC(3) /*!< ADC clock prescaler select CK_APB2/8 */
+
+/* PLL clock source selection */
+#define RCU_PLLSRC_IRC8M_DIV2 (uint32_t)0x00000000U /*!< PLL clock source select IRC8M/2 */
+#define RCU_PLLSRC_HXTAL RCU_CFG0_PLLSEL /*!< PLL clock source select HXTAL */
+
+/* HXTAL divider for PLL source clock selection */
+#define RCU_PLLPREDV (uint32_t)0x00000000U /*!< HXTAL clock selected */
+#define RCU_PLLPREDV_DIV2 RCU_CFG0_PLLPREDV /*!< HXTAL/2 clock selected */
+
+/* PLL multiply factor */
+#define CFG0_PLLMF(regval) (BITS(18,21) & ((uint32_t)(regval) << 18))
+#define RCU_PLL_MUL2 CFG0_PLLMF(0) /*!< PLL source clock multiply by 2 */
+#define RCU_PLL_MUL3 CFG0_PLLMF(1) /*!< PLL source clock multiply by 3 */
+#define RCU_PLL_MUL4 CFG0_PLLMF(2) /*!< PLL source clock multiply by 4 */
+#define RCU_PLL_MUL5 CFG0_PLLMF(3) /*!< PLL source clock multiply by 5 */
+#define RCU_PLL_MUL6 CFG0_PLLMF(4) /*!< PLL source clock multiply by 6 */
+#define RCU_PLL_MUL7 CFG0_PLLMF(5) /*!< PLL source clock multiply by 7 */
+#define RCU_PLL_MUL8 CFG0_PLLMF(6) /*!< PLL source clock multiply by 8 */
+#define RCU_PLL_MUL9 CFG0_PLLMF(7) /*!< PLL source clock multiply by 9 */
+#define RCU_PLL_MUL10 CFG0_PLLMF(8) /*!< PLL source clock multiply by 10 */
+#define RCU_PLL_MUL11 CFG0_PLLMF(9) /*!< PLL source clock multiply by 11 */
+#define RCU_PLL_MUL12 CFG0_PLLMF(10) /*!< PLL source clock multiply by 12 */
+#define RCU_PLL_MUL13 CFG0_PLLMF(11) /*!< PLL source clock multiply by 13 */
+#define RCU_PLL_MUL14 CFG0_PLLMF(12) /*!< PLL source clock multiply by 14 */
+#define RCU_PLL_MUL15 CFG0_PLLMF(13) /*!< PLL source clock multiply by 15 */
+#define RCU_PLL_MUL16 CFG0_PLLMF(14) /*!< PLL source clock multiply by 16 */
+#define RCU_PLL_MUL17 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(0)) /*!< PLL source clock multiply by 17 */
+#define RCU_PLL_MUL18 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(1)) /*!< PLL source clock multiply by 18 */
+#define RCU_PLL_MUL19 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(2)) /*!< PLL source clock multiply by 19 */
+#define RCU_PLL_MUL20 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(3)) /*!< PLL source clock multiply by 20 */
+#define RCU_PLL_MUL21 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(4)) /*!< PLL source clock multiply by 21 */
+#define RCU_PLL_MUL22 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(5)) /*!< PLL source clock multiply by 22 */
+#define RCU_PLL_MUL23 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(6)) /*!< PLL source clock multiply by 23 */
+#define RCU_PLL_MUL24 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(7)) /*!< PLL source clock multiply by 24 */
+#define RCU_PLL_MUL25 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(8)) /*!< PLL source clock multiply by 25 */
+#define RCU_PLL_MUL26 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(9)) /*!< PLL source clock multiply by 26 */
+#define RCU_PLL_MUL27 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(10)) /*!< PLL source clock multiply by 27 */
+#define RCU_PLL_MUL28 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(11)) /*!< PLL source clock multiply by 28 */
+#define RCU_PLL_MUL29 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(12)) /*!< PLL source clock multiply by 29 */
+#define RCU_PLL_MUL30 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(13)) /*!< PLL source clock multiply by 30 */
+#define RCU_PLL_MUL31 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(14)) /*!< PLL source clock multiply by 31 */
+#define RCU_PLL_MUL32 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(15)) /*!< PLL source clock multiply by 32 */
+
+/* CK_OUT clock source selection */
+#define CFG0_CKOUTSEL(regval) (BITS(24,26) & ((uint32_t)(regval) << 24))
+#define RCU_CKOUTSRC_NONE CFG0_CKOUTSEL(0) /*!< no clock selected */
+#define RCU_CKOUTSRC_IRC28M CFG0_CKOUTSEL(1) /*!< CK_OUT clock source select IRC28M */
+#define RCU_CKOUTSRC_IRC40K CFG0_CKOUTSEL(2) /*!< CK_OUT clock source select IRC40K */
+#define RCU_CKOUTSRC_LXTAL CFG0_CKOUTSEL(3) /*!< CK_OUT clock source select LXTAL */
+#define RCU_CKOUTSRC_CKSYS CFG0_CKOUTSEL(4) /*!< CK_OUT clock source select CKSYS */
+#define RCU_CKOUTSRC_IRC8M CFG0_CKOUTSEL(5) /*!< CK_OUT clock source select IRC8M */
+#define RCU_CKOUTSRC_HXTAL CFG0_CKOUTSEL(6) /*!< CK_OUT clock source select HXTAL */
+#define RCU_CKOUTSRC_CKPLL_DIV1 (RCU_CFG0_PLLDV | CFG0_CKOUTSEL(7)) /*!< CK_OUT clock source select CK_PLL */
+#define RCU_CKOUTSRC_CKPLL_DIV2 CFG0_CKOUTSEL(7) /*!< CK_OUT clock source select CK_PLL/2 */
+
+/* CK_OUT divider */
+#define CFG0_CKOUTDIV(regval) (BITS(28,30) & ((uint32_t)(regval) << 28))
+#define RCU_CKOUT_DIV1 CFG0_CKOUTDIV(0) /*!< CK_OUT is divided by 1 */
+#define RCU_CKOUT_DIV2 CFG0_CKOUTDIV(1) /*!< CK_OUT is divided by 2 */
+#define RCU_CKOUT_DIV4 CFG0_CKOUTDIV(2) /*!< CK_OUT is divided by 4 */
+#define RCU_CKOUT_DIV8 CFG0_CKOUTDIV(3) /*!< CK_OUT is divided by 8 */
+#define RCU_CKOUT_DIV16 CFG0_CKOUTDIV(4) /*!< CK_OUT is divided by 16 */
+#define RCU_CKOUT_DIV32 CFG0_CKOUTDIV(5) /*!< CK_OUT is divided by 32 */
+#define RCU_CKOUT_DIV64 CFG0_CKOUTDIV(6) /*!< CK_OUT is divided by 64 */
+#define RCU_CKOUT_DIV128 CFG0_CKOUTDIV(7) /*!< CK_OUT is divided by 128 */
+
+/* CK_PLL divide by 1 or 2 for CK_OUT */
+#define RCU_PLLDV_CKPLL_DIV2 (uint32_t)0x00000000U /*!< CK_PLL divide by 2 for CK_OUT */
+#define RCU_PLLDV_CKPLL RCU_CFG0_PLLDV /*!< CK_PLL divide by 1 for CK_OUT */
+
+/* LXTAL drive capability */
+#define BDCTL_LXTALDRI(regval) (BITS(3,4) & ((uint32_t)(regval) << 3))
+#define RCU_LXTAL_LOWDRI BDCTL_LXTALDRI(0) /*!< lower driving capability */
+#define RCU_LXTAL_MED_LOWDRI BDCTL_LXTALDRI(1) /*!< medium low driving capability */
+#define RCU_LXTAL_MED_HIGHDRI BDCTL_LXTALDRI(2) /*!< medium high driving capability */
+#define RCU_LXTAL_HIGHDRI BDCTL_LXTALDRI(3) /*!< higher driving capability */
+
+/* RTC clock entry selection */
+#define BDCTL_RTCSRC(regval) (BITS(8,9) & ((uint32_t)(regval) << 8))
+#define RCU_RTCSRC_NONE BDCTL_RTCSRC(0) /*!< no clock selected */
+#define RCU_RTCSRC_LXTAL BDCTL_RTCSRC(1) /*!< LXTAL selected as RTC source clock */
+#define RCU_RTCSRC_IRC40K BDCTL_RTCSRC(2) /*!< IRC40K selected as RTC source clock */
+#define RCU_RTCSRC_HXTAL_DIV32 BDCTL_RTCSRC(3) /*!< HXTAL/32 selected as RTC source clock */
+
+/* CK_HXTAL divider previous PLL */
+#define CFG1_PREDV(regval) (BITS(0,3) & ((uint32_t)(regval) << 0))
+#define RCU_PLL_PREDV1 CFG1_PREDV(0) /*!< PLL not divided */
+#define RCU_PLL_PREDV2 CFG1_PREDV(1) /*!< PLL divided by 2 */
+#define RCU_PLL_PREDV3 CFG1_PREDV(2) /*!< PLL divided by 3 */
+#define RCU_PLL_PREDV4 CFG1_PREDV(3) /*!< PLL divided by 4 */
+#define RCU_PLL_PREDV5 CFG1_PREDV(4) /*!< PLL divided by 5 */
+#define RCU_PLL_PREDV6 CFG1_PREDV(5) /*!< PLL divided by 6 */
+#define RCU_PLL_PREDV7 CFG1_PREDV(6) /*!< PLL divided by 7 */
+#define RCU_PLL_PREDV8 CFG1_PREDV(7) /*!< PLL divided by 8 */
+#define RCU_PLL_PREDV9 CFG1_PREDV(8) /*!< PLL divided by 9 */
+#define RCU_PLL_PREDV10 CFG1_PREDV(9) /*!< PLL divided by 10 */
+#define RCU_PLL_PREDV11 CFG1_PREDV(10) /*!< PLL divided by 11 */
+#define RCU_PLL_PREDV12 CFG1_PREDV(11) /*!< PLL divided by 12 */
+#define RCU_PLL_PREDV13 CFG1_PREDV(12) /*!< PLL divided by 13 */
+#define RCU_PLL_PREDV14 CFG1_PREDV(13) /*!< PLL divided by 14 */
+#define RCU_PLL_PREDV15 CFG1_PREDV(14) /*!< PLL divided by 15 */
+#define RCU_PLL_PREDV16 CFG1_PREDV(15) /*!< PLL divided by 16 */
+
+/* USART0 clock source selection */
+#define CFG2_USART0SEL(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
+#define RCU_USART0SRC_CKAPB2 CFG2_USART0SEL(0) /*!< CK_USART0 select CK_APB2 */
+#define RCU_USART0SRC_CKSYS CFG2_USART0SEL(1) /*!< CK_USART0 select CK_SYS */
+#define RCU_USART0SRC_LXTAL CFG2_USART0SEL(2) /*!< CK_USART0 select LXTAL */
+#define RCU_USART0SRC_IRC8M CFG2_USART0SEL(3) /*!< CK_USART0 select IRC8M */
+
+/* ADC clock source selection */
+#define RCU_ADCSRC_IRC28M (uint32_t)0x00000000U /*!< ADC clock source select */
+#define RCU_ADCSRC_AHB_APB2DIV RCU_CFG2_ADCSEL /*!< ADC clock source select */
+
+/* IRC28M clock divider for ADC */
+#define RCU_ADC_IRC28M_DIV2 (uint32_t)0x00000000U /*!< IRC28M/2 select to ADC clock */
+#define RCU_ADC_IRC28M_DIV1 RCU_CFG2_IRC28MDIV /*!< IRC28M select to ADC clock */
+
+/* Deep-sleep mode voltage */
+#define DSV_DSLPVS(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
+#define RCU_DEEPSLEEP_V_1_0 DSV_DSLPVS(0) /*!< core voltage is 1.0V in deep-sleep mode */
+#define RCU_DEEPSLEEP_V_0_9 DSV_DSLPVS(1) /*!< core voltage is 0.9V in deep-sleep mode */
+#define RCU_DEEPSLEEP_V_0_8 DSV_DSLPVS(2) /*!< core voltage is 0.8V in deep-sleep mode */
+#define RCU_DEEPSLEEP_V_1_2 DSV_DSLPVS(3) /*!< core voltage is 1.2V in deep-sleep mode */
+
+/* function declarations */
+/* deinitialize the RCU */
+void rcu_deinit(void);
+/* enable the peripherals clock */
+void rcu_periph_clock_enable(rcu_periph_enum periph);
+/* disable the peripherals clock */
+void rcu_periph_clock_disable(rcu_periph_enum periph);
+/* enable the peripherals clock when sleep mode */
+void rcu_periph_clock_sleep_enable(rcu_periph_sleep_enum periph);
+/* disable the peripherals clock when sleep mode */
+void rcu_periph_clock_sleep_disable(rcu_periph_sleep_enum periph);
+/* reset the peripherals */
+void rcu_periph_reset_enable(rcu_periph_reset_enum periph_reset);
+/* disable reset the peripheral */
+void rcu_periph_reset_disable(rcu_periph_reset_enum periph_reset);
+/* reset the BKP */
+void rcu_bkp_reset_enable(void);
+/* disable the BKP reset */
+void rcu_bkp_reset_disable(void);
+
+/* configure the system clock source */
+void rcu_system_clock_source_config(uint32_t ck_sys);
+/* get the system clock source */
+uint32_t rcu_system_clock_source_get(void);
+/* configure the AHB prescaler selection */
+void rcu_ahb_clock_config(uint32_t ck_ahb);
+/* configure the APB1 prescaler selection */
+void rcu_apb1_clock_config(uint32_t ck_apb1);
+/* configure the APB2 prescaler selection */
+void rcu_apb2_clock_config(uint32_t ck_apb2);
+/* configure the ADC clock source and prescaler selection */
+void rcu_adc_clock_config(rcu_adc_clock_enum ck_adc);
+/* configure the CK_OUT clock source and divider */
+void rcu_ckout_config(uint32_t ckout_src, uint32_t ckout_div);
+
+/* configure the PLL clock source selection and PLL multiply factor */
+void rcu_pll_config(uint32_t pll_src, uint32_t pll_mul);
+/* configure the USART clock source selection */
+void rcu_usart_clock_config(uint32_t ck_usart);
+/* configure the RTC clock source selection */
+void rcu_rtc_clock_config(uint32_t rtc_clock_source);
+/* configure the HXTAL divider used as input of PLL */
+void rcu_hxtal_prediv_config(uint32_t hxtal_prediv);
+/* configure the LXTAL drive capability */
+void rcu_lxtal_drive_capability_config(uint32_t lxtal_dricap);
+
+/* get the clock stabilization and periphral reset flags */
+FlagStatus rcu_flag_get(rcu_flag_enum flag);
+/* clear the reset flag */
+void rcu_all_reset_flag_clear(void);
+/* get the clock stabilization interrupt and ckm flags */
+FlagStatus rcu_interrupt_flag_get(rcu_int_flag_enum int_flag);
+/* clear the interrupt flags */
+void rcu_interrupt_flag_clear(rcu_int_flag_clear_enum int_flag_clear);
+/* enable the stabilization interrupt */
+void rcu_interrupt_enable(rcu_int_enum stab_int);
+/* disable the stabilization interrupt */
+void rcu_interrupt_disable(rcu_int_enum stab_int);
+
+/* wait until oscillator stabilization flags is SET */
+ErrStatus rcu_osci_stab_wait(rcu_osci_type_enum osci);
+/* turn on the oscillator */
+void rcu_osci_on(rcu_osci_type_enum osci);
+/* turn off the oscillator */
+void rcu_osci_off(rcu_osci_type_enum osci);
+/* enable the oscillator bypass mode */
+void rcu_osci_bypass_mode_enable(rcu_osci_type_enum osci);
+/* disable the oscillator bypass mode */
+void rcu_osci_bypass_mode_disable(rcu_osci_type_enum osci);
+/* enable the HXTAL clock monitor */
+void rcu_hxtal_clock_monitor_enable(void);
+/* disable the HXTAL clock monitor */
+void rcu_hxtal_clock_monitor_disable(void);
+
+/* set the IRC8M adjust value */
+void rcu_irc8m_adjust_value_set(uint8_t irc8m_adjval);
+/* set the IRC28M adjust value */
+void rcu_irc28m_adjust_value_set(uint8_t irc28m_adjval);
+/* unlock the voltage key */
+void rcu_voltage_key_unlock(void);
+/* set the deep sleep mode voltage */
+void rcu_deepsleep_voltage_set(uint32_t dsvol);
+
+/* get the system clock, bus and peripheral clock frequency */
+uint32_t rcu_clock_freq_get(rcu_clock_freq_enum clock);
+
+#endif /* GD32E230_RCU_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rtc.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rtc.h
new file mode 100644
index 0000000000..27756b1609
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_rtc.h
@@ -0,0 +1,561 @@
+/*!
+ \file gd32e230_rtc.h
+ \brief definitions for the RTC
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_RTC_H
+#define GD32E230_RTC_H
+
+#include "gd32e230.h"
+
+/* RTC definitions */
+#define RTC RTC_BASE
+
+/* registers definitions */
+#define RTC_TIME REG32((RTC) + 0x00000000U) /*!< RTC time of day register */
+#define RTC_DATE REG32((RTC) + 0x00000004U) /*!< RTC date register */
+#define RTC_CTL REG32((RTC) + 0x00000008U) /*!< RTC control register */
+#define RTC_STAT REG32((RTC) + 0x0000000CU) /*!< RTC status register */
+#define RTC_PSC REG32((RTC) + 0x00000010U) /*!< RTC time prescaler register */
+#define RTC_ALRM0TD REG32((RTC) + 0x0000001CU) /*!< RTC alarm 0 time and date register */
+#define RTC_WPK REG32((RTC) + 0x00000024U) /*!< RTC write protection key register */
+#define RTC_SS REG32((RTC) + 0x00000028U) /*!< RTC sub second register */
+#define RTC_SHIFTCTL REG32((RTC) + 0x0000002CU) /*!< RTC shift function control register */
+#define RTC_TTS REG32((RTC) + 0x00000030U) /*!< RTC time of timestamp register */
+#define RTC_DTS REG32((RTC) + 0x00000034U) /*!< RTC date of timestamp register */
+#define RTC_SSTS REG32((RTC) + 0x00000038U) /*!< RTC sub second of timestamp register */
+#define RTC_HRFC REG32((RTC) + 0x0000003CU) /*!< RTC high resolution frequency compensation registor */
+#define RTC_TAMP REG32((RTC) + 0x00000040U) /*!< RTC tamper register */
+#define RTC_ALRM0SS REG32((RTC) + 0x00000044U) /*!< RTC alarm 0 sub second register */
+#define RTC_BKP0 REG32((RTC) + 0x00000050U) /*!< RTC backup 0 register */
+#define RTC_BKP1 REG32((RTC) + 0x00000054U) /*!< RTC backup 1 register */
+#define RTC_BKP2 REG32((RTC) + 0x00000058U) /*!< RTC backup 2 register */
+#define RTC_BKP3 REG32((RTC) + 0x0000005CU) /*!< RTC backup 3 register */
+#define RTC_BKP4 REG32((RTC) + 0x00000060U) /*!< RTC backup 4 register */
+
+/* bits definitions */
+/* RTC_TIME */
+#define RTC_TIME_SCU BITS(0,3) /*!< second units in BCD code */
+#define RTC_TIME_SCT BITS(4,6) /*!< second tens in BCD code */
+#define RTC_TIME_MNU BITS(8,11) /*!< minute units in BCD code */
+#define RTC_TIME_MNT BITS(12,14) /*!< minute tens in BCD code */
+#define RTC_TIME_HRU BITS(16,19) /*!< hour units in BCD code */
+#define RTC_TIME_HRT BITS(20,21) /*!< hour tens in BCD code */
+#define RTC_TIME_PM BIT(22) /*!< AM/PM notation */
+
+/* RTC_DATE */
+#define RTC_DATE_DAYU BITS(0,3) /*!< date units in BCD code */
+#define RTC_DATE_DAYT BITS(4,5) /*!< date tens in BCD code */
+#define RTC_DATE_MONU BITS(8,11) /*!< month units in BCD code */
+#define RTC_DATE_MONT BIT(12) /*!< month tens in BCD code */
+#define RTC_DATE_DOW BITS(13,15) /*!< day of week units */
+#define RTC_DATE_YRU BITS(16,19) /*!< year units in BCD code */
+#define RTC_DATE_YRT BITS(20,23) /*!< year tens in BCD code */
+
+/* RTC_CTL */
+#define RTC_CTL_TSEG BIT(3) /*!< valid event edge of time-stamp */
+#define RTC_CTL_REFEN BIT(4) /*!< reference clock detection function enable */
+#define RTC_CTL_BPSHAD BIT(5) /*!< shadow registers bypass control */
+#define RTC_CTL_CS BIT(6) /*!< display format of clock system */
+#define RTC_CTL_ALRM0EN BIT(8) /*!< alarm function enable */
+#define RTC_CTL_TSEN BIT(11) /*!< time-stamp function enable */
+#define RTC_CTL_ALRM0IE BIT(12) /*!< RTC alarm interrupt enable */
+#define RTC_CTL_TSIE BIT(15) /*!< time-stamp interrupt enable */
+#define RTC_CTL_A1H BIT(16) /*!< add 1 hour(summer time change) */
+#define RTC_CTL_S1H BIT(17) /*!< subtract 1 hour(winter time change) */
+#define RTC_CTL_DSM BIT(18) /*!< daylight saving mark */
+#define RTC_CTL_COS BIT(19) /*!< calibration output selection */
+#define RTC_CTL_OPOL BIT(20) /*!< output polarity */
+#define RTC_CTL_OS BITS(21,22) /*!< output selection */
+#define RTC_CTL_COEN BIT(23) /*!< calibration output enable */
+
+/* RTC_STAT */
+#define RTC_STAT_ALRM0WF BIT(0) /*!< alarm configuration can be write flag */
+#define RTC_STAT_SOPF BIT(3) /*!< shift function operation pending flag */
+#define RTC_STAT_YCM BIT(4) /*!< year configuration mark status flag */
+#define RTC_STAT_RSYNF BIT(5) /*!< register synchronization flag */
+#define RTC_STAT_INITF BIT(6) /*!< initialization state flag */
+#define RTC_STAT_INITM BIT(7) /*!< enter initialization mode */
+#define RTC_STAT_ALRM0F BIT(8) /*!< alarm occurs flag */
+#define RTC_STAT_TSF BIT(11) /*!< time-stamp flag */
+#define RTC_STAT_TSOVRF BIT(12) /*!< time-stamp overflow flag */
+#define RTC_STAT_TP0F BIT(13) /*!< RTC tamp 0 detected flag */
+#define RTC_STAT_TP1F BIT(14) /*!< RTC tamp 1 detected flag */
+#define RTC_STAT_SCPF BIT(16) /*!< recalibration pending flag */
+
+/* RTC_PSC */
+#define RTC_PSC_FACTOR_S BITS(0,14) /*!< synchronous prescaler factor */
+#define RTC_PSC_FACTOR_A BITS(16,22) /*!< asynchronous prescaler factor */
+
+/* RTC_ALRM0TD */
+#define RTC_ALRM0TD_SCU BITS(0,3) /*!< second units in BCD code */
+#define RTC_ALRM0TD_SCT BITS(4,6) /*!< second tens in BCD code */
+#define RTC_ALRM0TD_MSKS BIT(7) /*!< alarm second mask bit */
+#define RTC_ALRM0TD_MNU BITS(8,11) /*!< minutes units in BCD code */
+#define RTC_ALRM0TD_MNT BITS(12,14) /*!< minutes tens in BCD code */
+#define RTC_ALRM0TD_MSKM BIT(15) /*!< alarm minutes mask bit */
+#define RTC_ALRM0TD_HRU BITS(16,19) /*!< hour units in BCD code */
+#define RTC_ALRM0TD_HRT BITS(20,21) /*!< hour units in BCD code */
+#define RTC_ALRM0TD_PM BIT(22) /*!< AM/PM flag */
+#define RTC_ALRM0TD_MSKH BIT(23) /*!< alarm hour mask bit */
+#define RTC_ALRM0TD_DAYU BITS(24,27) /*!< date units or week day in BCD code */
+#define RTC_ALRM0TD_DAYT BITS(28,29) /*!< date tens in BCD code */
+#define RTC_ALRM0TD_DOWS BIT(30) /*!< day of week selection */
+#define RTC_ALRM0TD_MSKD BIT(31) /*!< alarm date mask bit */
+
+/* RTC_WPK */
+#define RTC_WPK_WPK BITS(0,7) /*!< key for write protection */
+
+/* RTC_SS */
+#define RTC_SS_SSC BITS(0,15) /*!< sub second value */
+
+/* RTC_SHIFTCTL */
+#define RTC_SHIFTCTL_SFS BITS(0,14) /*!< subtract a fraction of a second */
+#define RTC_SHIFTCTL_A1S BIT(31) /*!< one second add */
+
+/* RTC_TTS */
+#define RTC_TTS_SCU BITS(0,3) /*!< second units in BCD code */
+#define RTC_TTS_SCT BITS(4,6) /*!< second units in BCD code */
+#define RTC_TTS_MNU BITS(8,11) /*!< minute units in BCD code */
+#define RTC_TTS_MNT BITS(12,14) /*!< minute tens in BCD code */
+#define RTC_TTS_HRU BITS(16,19) /*!< hour units in BCD code */
+#define RTC_TTS_HRT BITS(20,21) /*!< hour tens in BCD code */
+#define RTC_TTS_PM BIT(22) /*!< AM/PM notation */
+
+/* RTC_DTS */
+#define RTC_DTS_DAYU BITS(0,3) /*!< date units in BCD code */
+#define RTC_DTS_DAYT BITS(4,5) /*!< date tens in BCD code */
+#define RTC_DTS_MONU BITS(8,11) /*!< month units in BCD code */
+#define RTC_DTS_MONT BIT(12) /*!< month tens in BCD code */
+#define RTC_DTS_DOW BITS(13,15) /*!< day of week units */
+
+/* RTC_SSTS */
+#define RTC_SSTS_SSC BITS(0,15) /*!< timestamp sub second units */
+
+/* RTC_HRFC */
+#define RTC_HRFC_CMSK BITS(0,8) /*!< calibration mask number */
+#define RTC_HRFC_CWND16 BIT(13) /*!< calibration window select 16 seconds */
+#define RTC_HRFC_CWND8 BIT(14) /*!< calibration window select 16 seconds */
+#define RTC_HRFC_FREQI BIT(15) /*!< increase RTC frequency by 488.5ppm */
+
+/* RTC_TAMP */
+#define RTC_TAMP_TP0EN BIT(0) /*!< tamper 0 detection enable */
+#define RTC_TAMP_TP0EG BIT(1) /*!< tamper 0 event trigger edge for RTC tamp 0 input */
+#define RTC_TAMP_TPIE BIT(2) /*!< tamper detection interrupt enable */
+#define RTC_TAMP_TP1EN BIT(3) /*!< tamper 1 detection enable */
+#define RTC_TAMP_TP1EG BIT(4) /*!< tamper 1 event trigger edge for RTC tamp 1 input */
+#define RTC_TAMP_TPTS BIT(7) /*!< make tamper function used for timestamp function */
+#define RTC_TAMP_FREQ BITS(8,10) /*!< sample frequency of tamper event detection */
+#define RTC_TAMP_FLT BITS(11,12) /*!< RTC tamp x filter count setting */
+#define RTC_TAMP_PRCH BITS(13,14) /*!< precharge duration time of RTC tamp x */
+#define RTC_TAMP_DISPU BIT(15) /*!< RTC tamp x pull up disable bit */
+#define RTC_TAMP_PC13VAL BIT(18) /*!< alarm output type control/PC13 output value */
+#define RTC_TAMP_PC13MDE BIT(19) /*!< PC13 mode */
+#define RTC_TAMP_PC14VAL BIT(20) /*!< PC14 output value */
+#define RTC_TAMP_PC14MDE BIT(21) /*!< PC14 mode */
+#define RTC_TAMP_PC15VAL BIT(22) /*!< PC15 output value */
+#define RTC_TAMP_PC15MDE BIT(23) /*!< PC15 mode */
+
+/* RTC_ALRM0SS */
+#define RTC_ALRM0SS_SSC BITS(0,14) /*!< alarm sub second value */
+#define RTC_ALRM0SS_MASKSSC BITS(24,27) /*!< mask control bit of SS */
+
+/* RTC_BKP0 */
+#define RTC_BKP0_DATA BITS(0,31) /*!< backup domain registers */
+
+/* RTC_BKP1 */
+#define RTC_BKP1_DATA BITS(0,31) /*!< backup domain registers */
+
+/* RTC_BKP2 */
+#define RTC_BKP2_DATA BITS(0,31) /*!< backup domain registers */
+
+/* RTC_BKP3 */
+#define RTC_BKP3_DATA BITS(0,31) /*!< backup domain registers */
+
+/* RTC_BKP4 */
+#define RTC_BKP4_DATA BITS(0,31) /*!< backup domain registers */
+
+/* constants definitions */
+/* structure for initialization of the RTC */
+typedef struct
+{
+ uint8_t rtc_year; /*!< RTC year value: 0x0 - 0x99(BCD format) */
+ uint8_t rtc_month; /*!< RTC month value */
+ uint8_t rtc_date; /*!< RTC date value: 0x1 - 0x31(BCD format) */
+ uint8_t rtc_day_of_week; /*!< RTC weekday value */
+ uint8_t rtc_hour; /*!< RTC hour value */
+ uint8_t rtc_minute; /*!< RTC minute value: 0x0 - 0x59(BCD format) */
+ uint8_t rtc_second; /*!< RTC second value: 0x0 - 0x59(BCD format) */
+ uint16_t rtc_factor_asyn; /*!< RTC asynchronous prescaler value: 0x0 - 0x7F */
+ uint16_t rtc_factor_syn; /*!< RTC synchronous prescaler value: 0x0 - 0x7FFF */
+ uint32_t rtc_am_pm; /*!< RTC AM/PM value */
+ uint32_t rtc_display_format; /*!< RTC time notation */
+}rtc_parameter_struct;
+
+/* structure for RTC alarm configuration */
+typedef struct
+{
+ uint32_t rtc_alarm_mask; /*!< RTC alarm mask */
+ uint32_t rtc_weekday_or_date; /*!< specify RTC alarm is on date or weekday */
+ uint8_t rtc_alarm_day; /*!< RTC alarm date or weekday value*/
+ uint8_t rtc_alarm_hour; /*!< RTC alarm hour value */
+ uint8_t rtc_alarm_minute; /*!< RTC alarm minute value: 0x0 - 0x59(BCD format) */
+ uint8_t rtc_alarm_second; /*!< RTC alarm second value: 0x0 - 0x59(BCD format) */
+ uint32_t rtc_am_pm; /*!< RTC alarm AM/PM value */
+}rtc_alarm_struct;
+
+/* structure for RTC time-stamp configuration */
+typedef struct
+{
+ uint8_t rtc_timestamp_month; /*!< RTC time-stamp month value */
+ uint8_t rtc_timestamp_date; /*!< RTC time-stamp date value: 0x1 - 0x31(BCD format) */
+ uint8_t rtc_timestamp_day; /*!< RTC time-stamp weekday value */
+ uint8_t rtc_timestamp_hour; /*!< RTC time-stamp hour value */
+ uint8_t rtc_timestamp_minute; /*!< RTC time-stamp minute value: 0x0 - 0x59(BCD format) */
+ uint8_t rtc_timestamp_second; /*!< RTC time-stamp second value: 0x0 - 0x59(BCD format) */
+ uint32_t rtc_am_pm; /*!< RTC time-stamp AM/PM value */
+}rtc_timestamp_struct;
+
+/* structure for RTC tamper configuration */
+typedef struct
+{
+ uint32_t rtc_tamper_source; /*!< RTC tamper source */
+ uint32_t rtc_tamper_trigger; /*!< RTC tamper trigger */
+ uint32_t rtc_tamper_filter; /*!< RTC tamper consecutive samples needed during a voltage level detection */
+ uint32_t rtc_tamper_sample_frequency; /*!< RTC tamper sampling frequency during a voltage level detection */
+ ControlStatus rtc_tamper_precharge_enable; /*!< RTC tamper precharge feature during a voltage level detection */
+ uint32_t rtc_tamper_precharge_time; /*!< RTC tamper precharge duration if precharge feature is enabled */
+ ControlStatus rtc_tamper_with_timestamp; /*!< RTC tamper time-stamp feature */
+}rtc_tamper_struct;
+
+/* time register value */
+#define TIME_SC(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_TIME_SC bit field */
+#define GET_TIME_SC(regval) GET_BITS((regval),0,6) /*!< get value of RTC_TIME_SC bit field */
+
+#define TIME_MN(regval) (BITS(8,14) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_TIME_MN bit field */
+#define GET_TIME_MN(regval) GET_BITS((regval),8,14) /*!< get value of RTC_TIME_MN bit field */
+
+#define TIME_HR(regval) (BITS(16,21) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_TIME_HR bit field */
+#define GET_TIME_HR(regval) GET_BITS((regval),16,21) /*!< get value of RTC_TIME_HR bit field */
+
+#define RTC_AM ((uint32_t)0x00000000U) /*!< AM format */
+#define RTC_PM RTC_TIME_PM /*!< PM format */
+
+/* date register value */
+#define DATE_DAY(regval) (BITS(0,5) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_DATE_DAY bit field */
+#define GET_DATE_DAY(regval) GET_BITS((regval),0,5) /*!< get value of RTC_DATE_DAY bit field */
+
+#define DATE_MON(regval) (BITS(8,12) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_DATE_MON bit field */
+#define GET_DATE_MON(regval) GET_BITS((regval),8,12) /*!< get value of RTC_DATE_MON bit field */
+#define RTC_JAN ((uint8_t)0x01U) /*!< Janurary */
+#define RTC_FEB ((uint8_t)0x02U) /*!< February */
+#define RTC_MAR ((uint8_t)0x03U) /*!< March */
+#define RTC_APR ((uint8_t)0x04U) /*!< April */
+#define RTC_MAY ((uint8_t)0x05U) /*!< May */
+#define RTC_JUN ((uint8_t)0x06U) /*!< June */
+#define RTC_JUL ((uint8_t)0x07U) /*!< July */
+#define RTC_AUG ((uint8_t)0x08U) /*!< August */
+#define RTC_SEP ((uint8_t)0x09U) /*!< September */
+#define RTC_OCT ((uint8_t)0x10U) /*!< October */
+#define RTC_NOV ((uint8_t)0x11U) /*!< November */
+#define RTC_DEC ((uint8_t)0x12U) /*!< December */
+
+#define DATE_DOW(regval) (BITS(13,15) & ((uint32_t)(regval) << 13U)) /*!< write value to RTC_DATE_DOW bit field */
+#define GET_DATE_DOW(regval) GET_BITS((regval),13,15) /*!< get value of RTC_DATE_DOW bit field */
+#define RTC_MONDAY ((uint8_t)0x01U) /*!< Monday */
+#define RTC_TUESDAY ((uint8_t)0x02U) /*!< Tuesday */
+#define RTC_WEDSDAY ((uint8_t)0x03U) /*!< Wednesday */
+#define RTC_THURSDAY ((uint8_t)0x04U) /*!< Thursday */
+#define RTC_FRIDAY ((uint8_t)0x05U) /*!< Friday */
+#define RTC_SATURDAY ((uint8_t)0x06U) /*!< Saturday */
+#define RTC_SUNDAY ((uint8_t)0x07U) /*!< Sunday */
+
+#define DATE_YR(regval) (BITS(16,23) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_DATE_YR bit field */
+#define GET_DATE_YR(regval) GET_BITS((regval),16,23) /*!< get value of RTC_DATE_YR bit field */
+
+/* ctl register value */
+#define CTL_OS(regval) (BITS(21,22) & ((uint32_t)(regval) << 21U)) /*!< write value to RTC_CTL_OS bit field */
+#define RTC_OS_DISABLE CTL_OS(0) /*!< disable output RTC_ALARM */
+#define RTC_OS_ENABLE CTL_OS(1) /*!< enable alarm flag output */
+
+#define RTC_CALIBRATION_512HZ RTC_CTL_COEN /*!< calibration output of 512Hz is enable */
+#define RTC_CALIBRATION_1HZ (RTC_CTL_COEN | RTC_CTL_COS) /*!< calibration output of 1Hz is enable */
+#define RTC_ALARM_HIGH RTC_CTL_OS /*!< enable alarm flag output with high level */
+#define RTC_ALARM_LOW (RTC_CTL_OS | RTC_CTL_OPOL) /*!< enable alarm flag output with low level*/
+
+#define RTC_24HOUR ((uint32_t)0x00000000U) /*!< 24-hour format */
+#define RTC_12HOUR RTC_CTL_CS /*!< 12-hour format */
+
+#define RTC_TIMESTAMP_RISING_EDGE ((uint32_t)0x00000000U) /*!< rising edge is valid event edge for time-stamp event */
+#define RTC_TIMESTAMP_FALLING_EDGE RTC_CTL_TSEG /*!< falling edge is valid event edge for time-stamp event */
+
+/* psc register value */
+#define PSC_FACTOR_S(regval) (BITS(0,14) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_PSC_FACTOR_S bit field */
+#define GET_PSC_FACTOR_S(regval) GET_BITS((regval),0,14) /*!< get value of RTC_PSC_FACTOR_S bit field */
+
+#define PSC_FACTOR_A(regval) (BITS(16,22) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_PSC_FACTOR_A bit field */
+#define GET_PSC_FACTOR_A(regval) GET_BITS((regval),16,22) /*!< get value of RTC_PSC_FACTOR_A bit field */
+
+/* alrm0td register value */
+#define ALRM0TD_SC(regval) (BITS(0,6) & ((uint32_t)(regval)<< 0U)) /*!< write value to RTC_ALRM0TD_SC bit field */
+#define GET_ALRM0TD_SC(regval) GET_BITS((regval),0,6) /*!< get value of RTC_ALRM0TD_SC bit field */
+
+#define ALRM0TD_MN(regval) (BITS(8,14) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_ALRM0TD_MN bit field */
+#define GET_ALRM0TD_MN(regval) GET_BITS((regval),8,14) /*!< get value of RTC_ALRM0TD_MN bit field */
+
+#define ALRM0TD_HR(regval) (BITS(16,21) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_ALRM0TD_HR bit field */
+#define GET_ALRM0TD_HR(regval) GET_BITS((regval),16,21) /*!< get value of RTC_ALRM0TD_HR bit field */
+
+#define ALRM0TD_DAY(regval) (BITS(24,29) & ((uint32_t)(regval) << 24U)) /*!< write value to RTC_ALRM0TD_DAY bit field */
+#define GET_ALRM0TD_DAY(regval) GET_BITS((regval),24,29) /*!< get value of RTC_ALRM0TD_DAY bit field */
+
+#define RTC_ALARM_NONE_MASK ((uint32_t)0x00000000U) /*!< alarm none mask */
+#define RTC_ALARM_DATE_MASK RTC_ALRM0TD_MSKD /*!< alarm date mask */
+#define RTC_ALARM_HOUR_MASK RTC_ALRM0TD_MSKH /*!< alarm hour mask */
+#define RTC_ALARM_MINUTE_MASK RTC_ALRM0TD_MSKM /*!< alarm minute mask */
+#define RTC_ALARM_SECOND_MASK RTC_ALRM0TD_MSKS /*!< alarm second mask */
+#define RTC_ALARM_ALL_MASK (RTC_ALRM0TD_MSKD|RTC_ALRM0TD_MSKH|RTC_ALRM0TD_MSKM|RTC_ALRM0TD_MSKS) /*!< alarm all mask */
+
+#define RTC_ALARM_DATE_SELECTED ((uint32_t)0x00000000U) /*!< alarm date format selected */
+#define RTC_ALARM_WEEKDAY_SELECTED RTC_ALRM0TD_DOWS /*!< alarm weekday format selected */
+
+/* wpk register value */
+#define WPK_WPK(regval) (BITS(0,7) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_WPK_WPK bit field */
+
+/* ss register value */
+#define SS_SSC(regval) (BITS(0,15) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_SS_SSC bit field */
+
+/* shiftctl register value */
+#define SHIFTCTL_SFS(regval) (BITS(0,14) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_SHIFTCTL_SFS bit field */
+
+#define RTC_SHIFT_ADD1S_RESET ((uint32_t)0x00000000U) /*!< not add 1 second */
+#define RTC_SHIFT_ADD1S_SET RTC_SHIFTCTL_A1S /*!< add one second to the clock */
+
+/* tts register value */
+#define TTS_SC(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_TTS_SC bit field */
+#define GET_TTS_SC(regval) GET_BITS((regval),0,6) /*!< get value of RTC_TTS_SC bit field */
+
+#define TTS_MN(regval) (BITS(8,14) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_TTS_MN bit field */
+#define GET_TTS_MN(regval) GET_BITS((regval),8,14) /*!< get value of RTC_TTS_MN bit field */
+
+#define TTS_HR(regval) (BITS(16,21) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_TTS_HR bit field */
+#define GET_TTS_HR(regval) GET_BITS((regval),16,21) /*!< get value of RTC_TTS_HR bit field */
+
+/* dts register value */
+#define DTS_DAY(regval) (BITS(0,5) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_DTS_DAY bit field */
+#define GET_DTS_DAY(regval) GET_BITS((regval),0,5) /*!< get value of RTC_DTS_DAY bit field */
+
+#define DTS_MON(regval) (BITS(8,12) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_DTS_MON bit field */
+#define GET_DTS_MON(regval) GET_BITS((regval),8,12) /*!< get value of RTC_DTS_MON bit field */
+
+#define DTS_DOW(regval) (BITS(13,15) & ((uint32_t)(regval) << 13U)) /*!< write value to RTC_DTS_DOW bit field */
+#define GET_DTS_DOW(regval) GET_BITS((regval),13,15) /*!< get value of RTC_DTS_DOW bit field */
+
+/* ssts register value */
+#define SSTS_SSC(regval) (BITS(0,15) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_SSTS_SSC bit field */
+
+/* hrfc register value */
+#define HRFC_CMSK(regval) (BITS(0,8) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_HRFC_CMSK bit field */
+
+#define RTC_CALIBRATION_WINDOW_32S ((uint32_t)0x00000000U) /*!< 2exp20 RTCCLK cycles, 32s if RTCCLK = 32768 Hz */
+#define RTC_CALIBRATION_WINDOW_16S RTC_HRFC_CWND16 /*!< 2exp19 RTCCLK cycles, 16s if RTCCLK = 32768 Hz */
+#define RTC_CALIBRATION_WINDOW_8S RTC_HRFC_CWND8 /*!< 2exp18 RTCCLK cycles, 8s if RTCCLK = 32768 Hz */
+
+#define RTC_CALIBRATION_PLUS_SET RTC_HRFC_FREQI /*!< increase RTC frequency by 488.5ppm */
+#define RTC_CALIBRATION_PLUS_RESET ((uint32_t)0x00000000U) /*!< no effect */
+
+/* tamp register value */
+#define TAMP_FREQ(regval) (BITS(8,10) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_TAMP_FREQ bit field */
+#define RTC_FREQ_DIV32768 TAMP_FREQ(0) /*!< sample once every 32768 RTCCLK(1Hz if RTCCLK=32.768KHz) */
+#define RTC_FREQ_DIV16384 TAMP_FREQ(1) /*!< sample once every 16384 RTCCLK(2Hz if RTCCLK=32.768KHz) */
+#define RTC_FREQ_DIV8192 TAMP_FREQ(2) /*!< sample once every 8192 RTCCLK(4Hz if RTCCLK=32.768KHz) */
+#define RTC_FREQ_DIV4096 TAMP_FREQ(3) /*!< sample once every 4096 RTCCLK(8Hz if RTCCLK=32.768KHz) */
+#define RTC_FREQ_DIV2048 TAMP_FREQ(4) /*!< sample once every 2048 RTCCLK(16Hz if RTCCLK=32.768KHz) */
+#define RTC_FREQ_DIV1024 TAMP_FREQ(5) /*!< sample once every 1024 RTCCLK(32Hz if RTCCLK=32.768KHz) */
+#define RTC_FREQ_DIV512 TAMP_FREQ(6) /*!< sample once every 512 RTCCLK(64Hz if RTCCLK=32.768KHz) */
+#define RTC_FREQ_DIV256 TAMP_FREQ(7) /*!< sample once every 256 RTCCLK(128Hz if RTCCLK=32.768KHz) */
+
+#define TAMP_FLT(regval) (BITS(11,12) & ((uint32_t)(regval) << 11U)) /*!< write value to RTC_TAMP_FLT bit field */
+#define RTC_FLT_EDGE TAMP_FLT(0) /*!< detecting tamper event using edge mode. precharge duration is disabled automatically */
+#define RTC_FLT_2S TAMP_FLT(1) /*!< detecting tamper event using level mode.2 consecutive valid level samples will make a effective tamper event */
+#define RTC_FLT_4S TAMP_FLT(2) /*!< detecting tamper event using level mode.4 consecutive valid level samples will make an effective tamper event */
+#define RTC_FLT_8S TAMP_FLT(3) /*!< detecting tamper event using level mode.8 consecutive valid level samples will make a effective tamper event */
+
+#define TAMP_PRCH(regval) (BITS(13,14) & ((uint32_t)(regval) << 13U)) /*!< write value to RTC_TAMP_PRCH bit field */
+#define RTC_PRCH_1C TAMP_PRCH(0) /*!< 1 RTC clock prechagre time before each sampling */
+#define RTC_PRCH_2C TAMP_PRCH(1) /*!< 2 RTC clock prechagre time before each sampling */
+#define RTC_PRCH_4C TAMP_PRCH(2) /*!< 4 RTC clock prechagre time before each sampling */
+#define RTC_PRCH_8C TAMP_PRCH(3) /*!< 8 RTC clock prechagre time before each sampling */
+
+#define RTC_TAMPER0 RTC_TAMP_TP0EN /*!< tamper 0 detection enable */
+#define RTC_TAMPER1 RTC_TAMP_TP1EN /*!< tamper 1 detection enable */
+
+#define RTC_TAMPER_TRIGGER_EDGE_RISING ((uint32_t)0x00000000U) /*!< tamper detection is in rising edge mode */
+#define RTC_TAMPER_TRIGGER_EDGE_FALLING RTC_TAMP_TP0EG /*!< tamper detection is in falling edge mode */
+#define RTC_TAMPER_TRIGGER_LEVEL_LOW ((uint32_t)0x00000000U) /*!< tamper detection is in low level mode */
+#define RTC_TAMPER_TRIGGER_LEVEL_HIGH RTC_TAMP_TP0EG /*!< tamper detection is in high level mode */
+
+#define RTC_TAMPER_TRIGGER_POS ((uint32_t)0x00000001U) /* shift position of trigger relative to source */
+
+#define RTC_ALARM_OUTPUT_OD ((uint32_t)0x00000000U) /*!< RTC alarm output open-drain mode */
+#define RTC_ALARM_OUTPUT_PP RTC_TAMP_PC13VAL /*!< RTC alarm output push-pull mode */
+
+/* alrm0ss register value */
+#define ALRM0SS_SSC(regval) (BITS(0,14) & ((uint32_t)(regval)<< 0U)) /*!< write value to RTC_ALRM0SS_SSC bit field */
+
+#define ALRM0SS_MASKSSC(regval) (BITS(24,27) & ((uint32_t)(regval) << 24U)) /*!< write value to RTC_ALRM0SS_MASKSSC bit field */
+#define RTC_MASKSSC_0_14 ALRM0SS_MASKSSC(0) /*!< mask alarm subsecond configuration */
+#define RTC_MASKSSC_1_14 ALRM0SS_MASKSSC(1) /*!< mask RTC_ALRM0SS_SSC[14:1], and RTC_ALRM0SS_SSC[0] is to be compared */
+#define RTC_MASKSSC_2_14 ALRM0SS_MASKSSC(2) /*!< mask RTC_ALRM0SS_SSC[14:2], and RTC_ALRM0SS_SSC[1:0] is to be compared */
+#define RTC_MASKSSC_3_14 ALRM0SS_MASKSSC(3) /*!< mask RTC_ALRM0SS_SSC[14:3], and RTC_ALRM0SS_SSC[2:0] is to be compared */
+#define RTC_MASKSSC_4_14 ALRM0SS_MASKSSC(4) /*!< mask RTC_ALRM0SS_SSC[14:4], and RTC_ALRM0SS_SSC[3:0] is to be compared */
+#define RTC_MASKSSC_5_14 ALRM0SS_MASKSSC(5) /*!< mask RTC_ALRM0SS_SSC[14:5], and RTC_ALRM0SS_SSC[4:0] is to be compared */
+#define RTC_MASKSSC_6_14 ALRM0SS_MASKSSC(6) /*!< mask RTC_ALRM0SS_SSC[14:6], and RTC_ALRM0SS_SSC[5:0] is to be compared */
+#define RTC_MASKSSC_7_14 ALRM0SS_MASKSSC(7) /*!< mask RTC_ALRM0SS_SSC[14:7], and RTC_ALRM0SS_SSC[6:0] is to be compared */
+#define RTC_MASKSSC_8_14 ALRM0SS_MASKSSC(8) /*!< mask RTC_ALRM0SS_SSC[14:8], and RTC_ALRM0SS_SSC[7:0] is to be compared */
+#define RTC_MASKSSC_9_14 ALRM0SS_MASKSSC(9) /*!< mask RTC_ALRM0SS_SSC[14:9], and RTC_ALRM0SS_SSC[8:0] is to be compared */
+#define RTC_MASKSSC_10_14 ALRM0SS_MASKSSC(10) /*!< mask RTC_ALRM0SS_SSC[14:10], and RTC_ALRM0SS_SSC[9:0] is to be compared */
+#define RTC_MASKSSC_11_14 ALRM0SS_MASKSSC(11) /*!< mask RTC_ALRM0SS_SSC[14:11], and RTC_ALRM0SS_SSC[10:0] is to be compared */
+#define RTC_MASKSSC_12_14 ALRM0SS_MASKSSC(12) /*!< mask RTC_ALRM0SS_SSC[14:12], and RTC_ALRM0SS_SSC[11:0] is to be compared */
+#define RTC_MASKSSC_13_14 ALRM0SS_MASKSSC(13) /*!< mask RTC_ALRM0SS_SSC[14:13], and RTC_ALRM0SS_SSC[12:0] is to be compared */
+#define RTC_MASKSSC_14 ALRM0SS_MASKSSC(14) /*!< mask RTC_ALRM0SS_SSC[14], and RTC_ALRM0SS_SSC[13:0] is to be compared */
+#define RTC_MASKSSC_NONE ALRM0SS_MASKSSC(15) /*!< mask none, and RTC_ALRM0SS_SSC[14:0] is to be compared */
+
+/* RTC interrupt source */
+#define RTC_INT_TIMESTAMP RTC_CTL_TSIE /*!< time-stamp interrupt enable */
+#define RTC_INT_ALARM RTC_CTL_ALRM0IE /*!< RTC alarm interrupt enable */
+#define RTC_INT_TAMP RTC_TAMP_TPIE /*!< tamper detection interrupt enable */
+
+/* write protect key */
+#define RTC_UNLOCK_KEY1 ((uint8_t)0xCAU) /*!< RTC unlock key1 */
+#define RTC_UNLOCK_KEY2 ((uint8_t)0x53U) /*!< RTC unlock key2 */
+#define RTC_LOCK_KEY ((uint8_t)0xFFU) /*!< RTC lock key */
+
+/* registers reset value */
+#define RTC_REGISTER_RESET ((uint32_t)0x00000000U) /*!< RTC common register reset value */
+#define RTC_DATE_RESET ((uint32_t)0x00002101U) /*!< RTC_DATE register reset value */
+#define RTC_STAT_RESET ((uint32_t)0x00000007U) /*!< RTC_STAT register reset value */
+#define RTC_PSC_RESET ((uint32_t)0x007F00FFU) /*!< RTC_PSC register reset value */
+
+/* RTC timeout value */
+#define RTC_INITM_TIMEOUT ((uint32_t)0x00004000U) /*!< initialization state flag timeout */
+#define RTC_RSYNF_TIMEOUT ((uint32_t)0x00008000U) /*!< register synchronization flag timeout */
+#define RTC_HRFC_TIMEOUT ((uint32_t)0x00001000U) /*!< recalibration pending flag timeout */
+#define RTC_SHIFTCTL_TIMEOUT ((uint32_t)0x00001000U) /*!< shift function operation pending flag timeout */
+#define RTC_ALRM0WF_TIMEOUT ((uint32_t)0x00008000U) /*!< alarm configuration can be write flag timeout */
+
+/* RTC flag */
+#define RTC_FLAG_RECALIBRATION RTC_STAT_SCPF /*!< recalibration pending flag */
+#define RTC_FLAG_TAMP1 RTC_STAT_TP1F /*!< tamper 1 event flag */
+#define RTC_FLAG_TAMP0 RTC_STAT_TP0F /*!< tamper 0 event flag */
+#define RTC_FLAG_TIMESTAMP_OVERFLOW RTC_STAT_TSOVRF /*!< time-stamp overflow event flag */
+#define RTC_FLAG_TIMESTAMP RTC_STAT_TSF /*!< time-stamp event flag */
+#define RTC_FLAG_ALARM0 RTC_STAT_ALRM0F /*!< alarm event flag */
+#define RTC_FLAG_INIT RTC_STAT_INITF /*!< init mode event flag */
+#define RTC_FLAG_RSYN RTC_STAT_RSYNF /*!< registers synchronized flag */
+#define RTC_FLAG_YCM RTC_STAT_YCM /*!< year parameter configured event flag */
+#define RTC_FLAG_SHIFT RTC_STAT_SOPF /*!< shift operation pending flag */
+#define RTC_FLAG_ALARM0_WRITTEN RTC_STAT_ALRM0WF /*!< alarm written available flag */
+
+/* function declarations */
+/* reset most of the RTC registers */
+ErrStatus rtc_deinit(void);
+/* initialize RTC registers */
+ErrStatus rtc_init(rtc_parameter_struct* rtc_initpara_struct);
+/* enter RTC init mode */
+ErrStatus rtc_init_mode_enter(void);
+/* exit RTC init mode */
+void rtc_init_mode_exit(void);
+/* wait until RTC_TIME and RTC_DATE registers are synchronized with APB clock, and the shadow registers are updated */
+ErrStatus rtc_register_sync_wait(void);
+
+/* get current time and date */
+void rtc_current_time_get(rtc_parameter_struct* rtc_initpara_struct);
+/* get current subsecond value */
+uint32_t rtc_subsecond_get(void);
+
+/* configure RTC alarm */
+void rtc_alarm_config(rtc_alarm_struct* rtc_alarm_time);
+/* configure subsecond of RTC alarm */
+void rtc_alarm_subsecond_config(uint32_t mask_subsecond, uint32_t subsecond);
+/* get RTC alarm */
+void rtc_alarm_get(rtc_alarm_struct* rtc_alarm_time);
+/* get RTC alarm subsecond */
+uint32_t rtc_alarm_subsecond_get(void);
+/* enable RTC alarm */
+void rtc_alarm_enable(void);
+/* disable RTC alarm */
+ErrStatus rtc_alarm_disable(void);
+
+/* enable RTC time-stamp */
+void rtc_timestamp_enable(uint32_t edge);
+/* disable RTC time-stamp */
+void rtc_timestamp_disable(void);
+/* get RTC timestamp time and date */
+void rtc_timestamp_get(rtc_timestamp_struct* rtc_timestamp);
+/* get RTC time-stamp subsecond */
+uint32_t rtc_timestamp_subsecond_get(void);
+
+/* enable RTC tamper */
+void rtc_tamper_enable(rtc_tamper_struct* rtc_tamper);
+/* disable RTC tamper */
+void rtc_tamper_disable(uint32_t source);
+
+/* enable specified RTC interrupt */
+void rtc_interrupt_enable(uint32_t interrupt);
+/* disble specified RTC interrupt */
+void rtc_interrupt_disable(uint32_t interrupt);
+/* check specified flag */
+FlagStatus rtc_flag_get(uint32_t flag);
+/* clear specified flag */
+void rtc_flag_clear(uint32_t flag);
+
+/* configure RTC alternate output source */
+void rtc_alter_output_config(uint32_t source, uint32_t mode);
+/* configure RTC calibration register */
+ErrStatus rtc_calibration_config(uint32_t window, uint32_t plus, uint32_t minus);
+/* ajust the daylight saving time by adding or substracting one hour from the current time */
+void rtc_hour_adjust(uint32_t operation);
+/* ajust RTC second or subsecond value of current time */
+ErrStatus rtc_second_adjust(uint32_t add, uint32_t minus);
+/* enable RTC bypass shadow registers function */
+void rtc_bypass_shadow_enable(void);
+/* disable RTC bypass shadow registers function */
+void rtc_bypass_shadow_disable(void);
+/* enable RTC reference clock detection function */
+ErrStatus rtc_refclock_detection_enable(void);
+/* disable RTC reference clock detection function */
+ErrStatus rtc_refclock_detection_disable(void);
+
+#endif /* GD32E230_RTC_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_spi.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_spi.h
new file mode 100644
index 0000000000..5be789ff11
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_spi.h
@@ -0,0 +1,424 @@
+/*!
+ \file gd32e230_spi.h
+ \brief definitions for the SPI
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_SPI_H
+#define GD32E230_SPI_H
+
+#include "gd32e230.h"
+
+/* SPIx(x=0,1) definitions */
+#define SPI0 (SPI_BASE + 0x0000F800U)
+#define SPI1 SPI_BASE
+
+/* SPI registers definitions */
+#define SPI_CTL0(spix) REG32((spix) + 0x00U) /*!< SPI control register 0 */
+#define SPI_CTL1(spix) REG32((spix) + 0x04U) /*!< SPI control register 1*/
+#define SPI_STAT(spix) REG32((spix) + 0x08U) /*!< SPI status register */
+#define SPI_DATA(spix) REG32((spix) + 0x0CU) /*!< SPI data register */
+#define SPI_CRCPOLY(spix) REG32((spix) + 0x10U) /*!< SPI CRC polynomial register */
+#define SPI_RCRC(spix) REG32((spix) + 0x14U) /*!< SPI receive CRC register */
+#define SPI_TCRC(spix) REG32((spix) + 0x18U) /*!< SPI transmit CRC register */
+#define SPI_I2SCTL(spix) REG32((spix) + 0x1CU) /*!< SPI I2S control register */
+#define SPI_I2SPSC(spix) REG32((spix) + 0x20U) /*!< SPI I2S clock prescaler register */
+#define SPI_QCTL(spix) REG32((spix) + 0x80U) /*!< SPI quad mode control register(only SPI1) */
+
+/* bits definitions */
+/* SPI_CTL0 */
+#define SPI_CTL0_CKPH BIT(0) /*!< clock phase selection */
+#define SPI_CTL0_CKPL BIT(1) /*!< clock polarity selection */
+#define SPI_CTL0_MSTMOD BIT(2) /*!< master mode enable */
+#define SPI_CTL0_PSC BITS(3,5) /*!< master clock prescaler selection */
+#define SPI_CTL0_SPIEN BIT(6) /*!< SPI enable*/
+#define SPI_CTL0_LF BIT(7) /*!< LSB first mode */
+#define SPI_CTL0_SWNSS BIT(8) /*!< NSS pin selection in NSS software mode */
+#define SPI_CTL0_SWNSSEN BIT(9) /*!< NSS software mode selection */
+#define SPI_CTL0_RO BIT(10) /*!< receive only */
+/* only available in SPI0*/
+#define SPI_CTL0_FF16 BIT(11) /*!< data frame size */
+/* only available in SPI1*/
+#define SPI_CTL0_CRCL BIT(11) /*!< CRC length */
+#define SPI_CTL0_CRCNT BIT(12) /*!< CRC next transfer */
+#define SPI_CTL0_CRCEN BIT(13) /*!< CRC calculation enable */
+#define SPI_CTL0_BDOEN BIT(14) /*!< bidirectional transmit output enable*/
+#define SPI_CTL0_BDEN BIT(15) /*!< bidirectional enable */
+
+/* SPI_CTL1 */
+#define SPI_CTL1_DMAREN BIT(0) /*!< receive buffer dma enable */
+#define SPI_CTL1_DMATEN BIT(1) /*!< transmit buffer dma enable */
+#define SPI_CTL1_NSSDRV BIT(2) /*!< drive NSS output */
+#define SPI_CTL1_NSSP BIT(3) /*!< SPI NSS pulse mode enable */
+#define SPI_CTL1_TMOD BIT(4) /*!< SPI TI mode enable */
+#define SPI_CTL1_ERRIE BIT(5) /*!< errors interrupt enable */
+#define SPI_CTL1_RBNEIE BIT(6) /*!< receive buffer not empty interrupt enable */
+#define SPI_CTL1_TBEIE BIT(7) /*!< transmit buffer empty interrupt enable */
+/* only available in SPI1 */
+#define SPI_CTL1_DZ BITS(8,11) /*!< data size */
+#define SPI_CTL1_BYTEN BIT(12) /*!< byte access to FIFO enable */
+#define SPI_CTL1_RXDMA_ODD BIT(13) /*!< odd bytes in RX DMA channel */
+#define SPI_CTL1_TXDMA_ODD BIT(14) /*!< odd bytes in TX DMA channel */
+
+/* SPI_STAT */
+#define SPI_STAT_RBNE BIT(0) /*!< receive buffer not empty */
+#define SPI_STAT_TBE BIT(1) /*!< transmit buffer empty */
+#define SPI_STAT_I2SCH BIT(2) /*!< I2S channel side */
+#define SPI_STAT_TXURERR BIT(3) /*!< I2S transmission underrun error bit */
+#define SPI_STAT_CRCERR BIT(4) /*!< SPI CRC error bit */
+#define SPI_STAT_CONFERR BIT(5) /*!< SPI configuration error bit */
+#define SPI_STAT_RXORERR BIT(6) /*!< SPI reception overrun error bit */
+#define SPI_STAT_TRANS BIT(7) /*!< transmitting on-going bit */
+#define SPI_STAT_FERR BIT(8) /*!< format error bit */
+/* only available in SPI1 */
+#define SPI_STAT_RXLVL BITS(9,10) /*!< RXFIFO level */
+#define SPI_STAT_TXLVL BITS(11,12) /*!< TXFIFO level */
+
+/* SPI_DATA */
+#define SPI_DATA_DATA BITS(0,15) /*!< data transfer register */
+
+/* SPI_CRCPOLY */
+#define SPI_CRCPOLY_CRCPOLY BITS(0,15) /*!< CRC polynomial value */
+
+/* SPI_RCRC */
+#define SPI_RCRC_RCRC BITS(0,15) /*!< RX CRC value */
+
+/* SPI_TCRC */
+#define SPI_TCRC_TCRC BITS(0,15) /*!< TX CRC value */
+
+/* SPI_I2SCTL */
+#define SPI_I2SCTL_CHLEN BIT(0) /*!< channel length */
+#define SPI_I2SCTL_DTLEN BITS(1,2) /*!< data length */
+#define SPI_I2SCTL_CKPL BIT(3) /*!< idle state clock polarity */
+#define SPI_I2SCTL_I2SSTD BITS(4,5) /*!< I2S standard selection */
+#define SPI_I2SCTL_PCMSMOD BIT(7) /*!< PCM frame synchronization mode */
+#define SPI_I2SCTL_I2SOPMOD BITS(8,9) /*!< I2S operation mode */
+#define SPI_I2SCTL_I2SEN BIT(10) /*!< I2S enable */
+#define SPI_I2SCTL_I2SSEL BIT(11) /*!< I2S mode selection */
+
+/* SPI_I2SPSC */
+#define SPI_I2SPSC_DIV BITS(0,7) /*!< dividing factor for the prescaler */
+#define SPI_I2SPSC_OF BIT(8) /*!< odd factor for the prescaler */
+#define SPI_I2SPSC_MCKOEN BIT(9) /*!< I2S MCK output enable */
+
+/* SPIx_QCTL(x=1) */
+#define SPI_QCTL_QMOD BIT(0) /*!< quad-SPI mode enable */
+#define SPI_QCTL_QRD BIT(1) /*!< quad-SPI mode read select */
+#define SPI_QCTL_IO23_DRV BIT(2) /*!< drive SPI_IO2 and SPI_IO3 enable */
+
+/* constants definitions */
+/* SPIx and I2Sx parameter struct definitions */
+typedef struct
+{
+ uint32_t device_mode; /*!< SPI master or slave */
+ uint32_t trans_mode; /*!< SPI transtype */
+ uint32_t frame_size; /*!< SPI frame size */
+ uint32_t nss; /*!< SPI NSS control by handware or software */
+ uint32_t endian; /*!< SPI big endian or little endian */
+ uint32_t clock_polarity_phase; /*!< SPI clock phase and polarity */
+ uint32_t prescale; /*!< SPI prescale factor */
+}spi_parameter_struct;
+
+/* SPI mode definitions */
+#define SPI_MASTER (SPI_CTL0_MSTMOD | SPI_CTL0_SWNSS) /*!< SPI as master */
+#define SPI_SLAVE ((uint32_t)0x00000000U) /*!< SPI as slave */
+
+/* SPI bidirectional transfer direction */
+#define SPI_BIDIRECTIONAL_TRANSMIT SPI_CTL0_BDOEN /*!< SPI work in transmit-only mode */
+#define SPI_BIDIRECTIONAL_RECEIVE (~SPI_CTL0_BDOEN) /*!< SPI work in receive-only mode */
+
+/* SPI transmit type */
+#define SPI_TRANSMODE_FULLDUPLEX ((uint32_t)0x00000000U) /*!< SPI receive and send data at fullduplex communication */
+#define SPI_TRANSMODE_RECEIVEONLY SPI_CTL0_RO /*!< SPI only receive data */
+#define SPI_TRANSMODE_BDRECEIVE SPI_CTL0_BDEN /*!< bidirectional receive data */
+#define SPI_TRANSMODE_BDTRANSMIT (SPI_CTL0_BDEN | SPI_CTL0_BDOEN) /*!< bidirectional transmit data*/
+
+/* SPI NSS control mode */
+#define SPI_NSS_SOFT SPI_CTL0_SWNSSEN /*!< SPI NSS control by sofrware */
+#define SPI_NSS_HARD ((uint32_t)0x00000000U) /*!< SPI NSS control by hardware */
+
+/* SPI transmit way */
+#define SPI_ENDIAN_MSB ((uint32_t)0x00000000U) /*!< SPI transmit way is big endian: transmit MSB first */
+#define SPI_ENDIAN_LSB SPI_CTL0_LF /*!< SPI transmit way is little endian: transmit LSB first */
+
+/* SPI clock phase and polarity */
+#define SPI_CK_PL_LOW_PH_1EDGE ((uint32_t)0x00000000U) /*!< SPI clock polarity is low level and phase is first edge */
+#define SPI_CK_PL_HIGH_PH_1EDGE SPI_CTL0_CKPL /*!< SPI clock polarity is high level and phase is first edge */
+#define SPI_CK_PL_LOW_PH_2EDGE SPI_CTL0_CKPH /*!< SPI clock polarity is low level and phase is second edge */
+#define SPI_CK_PL_HIGH_PH_2EDGE (SPI_CTL0_CKPL | SPI_CTL0_CKPH) /*!< SPI clock polarity is high level and phase is second edge */
+
+/* SPI clock prescale factor */
+#define CTL0_PSC(regval) (BITS(3,5) & ((uint32_t)(regval) << 3))
+#define SPI_PSC_2 CTL0_PSC(0) /*!< SPI clock prescale factor is 2 */
+#define SPI_PSC_4 CTL0_PSC(1) /*!< SPI clock prescale factor is 4 */
+#define SPI_PSC_8 CTL0_PSC(2) /*!< SPI clock prescale factor is 8 */
+#define SPI_PSC_16 CTL0_PSC(3) /*!< SPI clock prescale factor is 16 */
+#define SPI_PSC_32 CTL0_PSC(4) /*!< SPI clock prescale factor is 32 */
+#define SPI_PSC_64 CTL0_PSC(5) /*!< SPI clock prescale factor is 64 */
+#define SPI_PSC_128 CTL0_PSC(6) /*!< SPI clock prescale factor is 128 */
+#define SPI_PSC_256 CTL0_PSC(7) /*!< SPI clock prescale factor is 256 */
+
+/* SPIx frame size */
+#define CTL1_FRAMESIZE(regval) (BITS(8,11) & ((uint32_t)(regval) << 8))
+#define SPI_FRAMESIZE_4BIT CTL1_FRAMESIZE(3) /*!< SPI frame size is 4 bits */
+#define SPI_FRAMESIZE_5BIT CTL1_FRAMESIZE(4) /*!< SPI frame size is 5 bits */
+#define SPI_FRAMESIZE_6BIT CTL1_FRAMESIZE(5) /*!< SPI frame size is 6 bits */
+#define SPI_FRAMESIZE_7BIT CTL1_FRAMESIZE(6) /*!< SPI frame size is 7 bits */
+#define SPI_FRAMESIZE_8BIT CTL1_FRAMESIZE(7) /*!< SPI frame size is 8 bits */
+#define SPI_FRAMESIZE_9BIT CTL1_FRAMESIZE(8) /*!< SPI frame size is 9 bits */
+#define SPI_FRAMESIZE_10BIT CTL1_FRAMESIZE(9) /*!< SPI frame size is 10 bits */
+#define SPI_FRAMESIZE_11BIT CTL1_FRAMESIZE(10) /*!< SPI frame size is 11 bits */
+#define SPI_FRAMESIZE_12BIT CTL1_FRAMESIZE(11) /*!< SPI frame size is 12 bits */
+#define SPI_FRAMESIZE_13BIT CTL1_FRAMESIZE(12) /*!< SPI frame size is 13 bits */
+#define SPI_FRAMESIZE_14BIT CTL1_FRAMESIZE(13) /*!< SPI frame size is 14 bits */
+#define SPI_FRAMESIZE_15BIT CTL1_FRAMESIZE(14) /*!< SPI frame size is 15 bits */
+#define SPI_FRAMESIZE_16BIT CTL1_FRAMESIZE(15) /*!< SPI frame size is 16 bits */
+
+/* SPIx CRC length(x=1) */
+#define SPI_CRC_8BIT ((uint32_t)0x00000000U) /*!< SPI CRC length is 8 bits */
+#define SPI_CRC_16BIT SPI_CTL0_CRCL /*!< SPI CRC length is 16 bits */
+
+/* SPIx byte access enable(x=1) */
+#define SPI_HALFWORD_ACCESS ((uint32_t)0x00000000U) /*!< SPI half-word access to FIFO */
+#define SPI_BYTE_ACCESS SPI_CTL1_BYTEN /*!< SPI byte access to FIFO */
+
+/* SPIx odd bytes in TX DMA channel(x=1) */
+#define SPI_TXDMA_EVEN ((uint32_t)0x00000000U) /*!< SPI number of byte in TX DMA channel is even */
+#define SPI_TXDMA_ODD SPI_CTL1_TXDMA_ODD /*!< SPI number of byte in TX DMA channel is odd */
+
+/* SPIx odd bytes in RX DMA channel(x=1) */
+#define SPI_RXDMA_EVEN ((uint32_t)0x00000000U) /*!< SPI number of byte in RX DMA channel is even */
+#define SPI_RXDMA_ODD SPI_CTL1_RXDMA_ODD /*!< SPI number of byte in RX DMA channel is odd */
+
+/* SPIx TXFIFO level(x=1) */
+#define CTL1_TXLVL(regval) (BITS(11,12) & ((uint32_t)(regval) << 11))
+#define SPI_TXLVL_EMPTY CTL1_RXLVL(0) /*!< SPI TXFIFO is empty */
+#define SPI_TXLVL_QUARTER_FULL CTL1_RXLVL(1) /*!< SPI TXFIFO is a quarter of full */
+#define SPI_TXLVL_HAlF_FULL CTL1_RXLVL(2) /*!< SPI TXFIFO is a half of full */
+#define SPI_TXLVL_FULL CTL1_RXLVL(3) /*!< SPI TXFIFO is full */
+
+/* SPIx RXFIFO level(x=1) */
+#define CTL1_RXLVL(regval) (BITS(9,10) & ((uint32_t)(regval) << 9))
+#define SPI_RXLVL_EMPTY CTL1_RXLVL(0) /*!< SPI RXFIFO is empty */
+#define SPI_RXLVL_QUARTER_FULL CTL1_RXLVL(1) /*!< SPI RXFIFO is a quarter of full */
+#define SPI_RXLVL_HAlF_FULL CTL1_RXLVL(2) /*!< SPI RXFIFO is a half of full */
+#define SPI_RXLVL_FULL CTL1_RXLVL(3) /*!< SPI RXFIFO is full */
+
+/* I2S audio sample rate */
+#define I2S_AUDIOSAMPLE_8K ((uint32_t)8000U) /*!< I2S audio sample rate is 8KHz */
+#define I2S_AUDIOSAMPLE_11K ((uint32_t)11025U) /*!< I2S audio sample rate is 11KHz */
+#define I2S_AUDIOSAMPLE_16K ((uint32_t)16000U) /*!< I2S audio sample rate is 16KHz */
+#define I2S_AUDIOSAMPLE_22K ((uint32_t)22050U) /*!< I2S audio sample rate is 22KHz */
+#define I2S_AUDIOSAMPLE_32K ((uint32_t)32000U) /*!< I2S audio sample rate is 32KHz */
+#define I2S_AUDIOSAMPLE_44K ((uint32_t)44100U) /*!< I2S audio sample rate is 44KHz */
+#define I2S_AUDIOSAMPLE_48K ((uint32_t)48000U) /*!< I2S audio sample rate is 48KHz */
+#define I2S_AUDIOSAMPLE_96K ((uint32_t)96000U) /*!< I2S audio sample rate is 96KHz */
+#define I2S_AUDIOSAMPLE_192K ((uint32_t)192000U) /*!< I2S audio sample rate is 192KHz */
+
+/* I2S frame format */
+#define I2SCTL_DTLEN(regval) (BITS(1,2) & ((uint32_t)(regval) << 1))
+#define I2S_FRAMEFORMAT_DT16B_CH16B I2SCTL_DTLEN(0) /*!< I2S data length is 16 bit and channel length is 16 bit */
+#define I2S_FRAMEFORMAT_DT16B_CH32B (I2SCTL_DTLEN(0) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 16 bit and channel length is 32 bit */
+#define I2S_FRAMEFORMAT_DT24B_CH32B (I2SCTL_DTLEN(1) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 24 bit and channel length is 32 bit */
+#define I2S_FRAMEFORMAT_DT32B_CH32B (I2SCTL_DTLEN(2) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 32 bit and channel length is 32 bit */
+
+/* I2S master clock output */
+#define I2S_MCKOUT_DISABLE ((uint32_t)0x00000000U) /*!< I2S master clock output disable */
+#define I2S_MCKOUT_ENABLE SPI_I2SPSC_MCKOEN /*!< I2S master clock output enable */
+
+/* I2S operation mode */
+#define I2SCTL_I2SOPMOD(regval) (BITS(8,9) & ((uint32_t)(regval) << 8))
+#define I2S_MODE_SLAVETX I2SCTL_I2SOPMOD(0) /*!< I2S slave transmit mode */
+#define I2S_MODE_SLAVERX I2SCTL_I2SOPMOD(1) /*!< I2S slave receive mode */
+#define I2S_MODE_MASTERTX I2SCTL_I2SOPMOD(2) /*!< I2S master transmit mode */
+#define I2S_MODE_MASTERRX I2SCTL_I2SOPMOD(3) /*!< I2S master receive mode */
+
+/* I2S standard */
+#define I2SCTL_I2SSTD(regval) (BITS(4,5) & ((uint32_t)(regval) << 4))
+#define I2S_STD_PHILLIPS I2SCTL_I2SSTD(0) /*!< I2S phillips standard */
+#define I2S_STD_MSB I2SCTL_I2SSTD(1) /*!< I2S MSB standard */
+#define I2S_STD_LSB I2SCTL_I2SSTD(2) /*!< I2S LSB standard */
+#define I2S_STD_PCMSHORT I2SCTL_I2SSTD(3) /*!< I2S PCM short standard */
+#define I2S_STD_PCMLONG (I2SCTL_I2SSTD(3) | SPI_I2SCTL_PCMSMOD) /*!< I2S PCM long standard */
+
+/* I2S clock polarity */
+#define I2S_CKPL_LOW ((uint32_t)0x00000000U) /*!< I2S clock polarity low level */
+#define I2S_CKPL_HIGH SPI_I2SCTL_CKPL /*!< I2S clock polarity high level */
+
+/* SPI DMA constants definitions */
+#define SPI_DMA_TRANSMIT ((uint8_t)0x00U) /*!< SPI transmit data use DMA */
+#define SPI_DMA_RECEIVE ((uint8_t)0x01U) /*!< SPI receive data use DMA */
+
+/* SPI CRC constants definitions */
+#define SPI_CRC_TX ((uint8_t)0x00U) /*!< SPI transmit CRC value */
+#define SPI_CRC_RX ((uint8_t)0x01U) /*!< SPI receive CRC value */
+
+/* SPI/I2S interrupt enable/disable constants definitions */
+#define SPI_I2S_INT_TBE ((uint8_t)0x00U) /*!< transmit buffer empty interrupt */
+#define SPI_I2S_INT_RBNE ((uint8_t)0x01U) /*!< receive buffer not empty interrupt */
+#define SPI_I2S_INT_ERR ((uint8_t)0x02U) /*!< error interrupt */
+
+/* SPI/I2S interrupt flag constants definitions */
+#define SPI_I2S_INT_FLAG_TBE ((uint8_t)0x00U) /*!< transmit buffer empty interrupt flag */
+#define SPI_I2S_INT_FLAG_RBNE ((uint8_t)0x01U) /*!< receive buffer not empty interrupt flag */
+#define SPI_I2S_INT_FLAG_RXORERR ((uint8_t)0x02U) /*!< overrun interrupt flag */
+#define SPI_INT_FLAG_CONFERR ((uint8_t)0x03U) /*!< config error interrupt flag */
+#define SPI_INT_FLAG_CRCERR ((uint8_t)0x04U) /*!< CRC error interrupt flag */
+#define I2S_INT_FLAG_TXURERR ((uint8_t)0x05U) /*!< underrun error interrupt flag */
+#define SPI_I2S_INT_FLAG_FERR ((uint8_t)0x06U) /*!< format error interrupt flag */
+
+/* SPI/I2S flag definitions */
+#define SPI_FLAG_RBNE SPI_STAT_RBNE /*!< receive buffer not empty flag */
+#define SPI_FLAG_TBE SPI_STAT_TBE /*!< transmit buffer empty flag */
+#define SPI_FLAG_CRCERR SPI_STAT_CRCERR /*!< CRC error flag */
+#define SPI_FLAG_CONFERR SPI_STAT_CONFERR /*!< mode config error flag */
+#define SPI_FLAG_RXORERR SPI_STAT_RXORERR /*!< receive overrun error flag */
+#define SPI_FLAG_TRANS SPI_STAT_TRANS /*!< transmit on-going flag */
+#define SPI_FLAG_FERR SPI_STAT_FERR /*!< format error interrupt flag */
+#define I2S_FLAG_RBNE SPI_STAT_RBNE /*!< receive buffer not empty flag */
+#define I2S_FLAG_TBE SPI_STAT_TBE /*!< transmit buffer empty flag */
+#define I2S_FLAG_CH SPI_STAT_I2SCH /*!< channel side flag */
+#define I2S_FLAG_TXURERR SPI_STAT_TXURERR /*!< underrun error flag */
+#define I2S_FLAG_RXORERR SPI_STAT_RXORERR /*!< overrun error flag */
+#define I2S_FLAG_TRANS SPI_STAT_TRANS /*!< transmit on-going flag */
+#define I2S_FLAG_FERR SPI_STAT_FERR /*!< format error interrupt flag */
+
+/* function declarations */
+/* SPI/I2S deinitialization and initialization functions */
+/* reset SPI and I2S */
+void spi_i2s_deinit(uint32_t spi_periph);
+/* initialize the parameters of SPI struct with the default values */
+void spi_struct_para_init(spi_parameter_struct* spi_struct);
+/* initialize SPI parameter */
+ErrStatus spi_init(uint32_t spi_periph, spi_parameter_struct* spi_struct);
+/* enable SPI */
+void spi_enable(uint32_t spi_periph);
+/* disable SPI */
+void spi_disable(uint32_t spi_periph);
+
+/* initialize I2S parameter */
+void i2s_init(uint32_t spi_periph, uint32_t mode, uint32_t standard, uint32_t ckpl);
+/* configure I2S prescaler */
+void i2s_psc_config(uint32_t spi_periph, uint32_t audiosample, uint32_t frameformat, uint32_t mckout);
+/* enable I2S */
+void i2s_enable(uint32_t spi_periph);
+/* disable I2S */
+void i2s_disable(uint32_t spi_periph);
+
+/* NSS functions */
+/* enable SPI NSS output */
+void spi_nss_output_enable(uint32_t spi_periph);
+/* disable SPI NSS output */
+void spi_nss_output_disable(uint32_t spi_periph);
+/* SPI NSS pin high level in software mode */
+void spi_nss_internal_high(uint32_t spi_periph);
+/* SPI NSS pin low level in software mode */
+void spi_nss_internal_low(uint32_t spi_periph);
+
+/* enable SPI DMA */
+void spi_dma_enable(uint32_t spi_periph, uint8_t dma);
+/* disable SPI DMA */
+void spi_dma_disable(uint32_t spi_periph, uint8_t dma);
+
+/* configure SPI/I2S data frame format */
+ErrStatus spi_i2s_data_frame_format_config(uint32_t spi_periph, uint16_t frame_format);
+/* SPI transmit data */
+void spi_i2s_data_transmit(uint32_t spi_periph, uint16_t data);
+/* SPI receive data */
+uint16_t spi_i2s_data_receive(uint32_t spi_periph);
+/* configure SPI bidirectional transfer direction */
+void spi_bidirectional_transfer_config(uint32_t spi_periph, uint32_t transfer_direction);
+
+/* SPI CRC functions */
+/* set SPI CRC polynomial */
+void spi_crc_polynomial_set(uint32_t spi_periph, uint16_t crc_poly);
+/* get SPI CRC polynomial */
+uint16_t spi_crc_polynomial_get(uint32_t spi_periph);
+/* turn on SPI CRC function */
+void spi_crc_on(uint32_t spi_periph);
+/* turn off SPI CRC function */
+void spi_crc_off(uint32_t spi_periph);
+/* SPI next data is CRC value */
+void spi_crc_next(uint32_t spi_periph);
+/* get SPI CRC send value or receive value */
+uint16_t spi_crc_get(uint32_t spi_periph, uint8_t crc);
+
+/* SPI TI mode functions */
+/* enable SPI TI mode */
+void spi_ti_mode_enable(uint32_t spi_periph);
+/* disable SPI TI mode */
+void spi_ti_mode_disable(uint32_t spi_periph);
+
+/* SPI NSS pulse mode functions */
+/* enable SPI NSS pulse mode */
+void spi_nssp_mode_enable(uint32_t spi_periph);
+/* disable SPI NSS pulse mode */
+void spi_nssp_mode_disable(uint32_t spi_periph);
+
+/* quad wire SPI functions */
+/* enable quad wire SPI */
+void qspi_enable(uint32_t spi_periph);
+/* disable quad wire SPI */
+void qspi_disable(uint32_t spi_periph);
+/* enable quad wire SPI write */
+void qspi_write_enable(uint32_t spi_periph);
+/* enable quad wire SPI read */
+void qspi_read_enable(uint32_t spi_periph);
+/* enable quad wire SPI_IO2 and SPI_IO3 pin output */
+void qspi_io23_output_enable(uint32_t spi_periph);
+/* disable quad wire SPI_IO2 and SPI_IO3 pin output */
+void qspi_io23_output_disable(uint32_t spi_periph);
+
+/* flag and interrupt functions */
+/* enable SPI and I2S interrupt */
+void spi_i2s_interrupt_enable(uint32_t spi_periph, uint8_t interrupt);
+/* disable SPI and I2S interrupt */
+void spi_i2s_interrupt_disable(uint32_t spi_periph, uint8_t interrupt);
+/* get SPI and I2S interrupt status */
+FlagStatus spi_i2s_interrupt_flag_get(uint32_t spi_periph, uint8_t interrupt);
+/* get SPI and I2S flag status */
+FlagStatus spi_i2s_flag_get(uint32_t spi_periph, uint32_t flag);
+/* clear SPI CRC error flag status */
+void spi_crc_error_clear(uint32_t spi_periph);
+
+/* only for SPI1 FIFO added */
+/* configure SPI access size to FIFO(8-bit or 16-bit) */
+void spi_fifo_access_size_config(uint32_t spi_periph, uint16_t fifo_access_size);
+/* configure SPI total number of data transmitting by DMA is odd or not */
+void spi_transmit_odd_config(uint32_t spi_periph, uint16_t odd);
+/* configure SPI total number of data receiving by DMA is odd or not */
+void spi_receive_odd_config(uint32_t spi_periph, uint16_t odd);
+/* set CRC length */
+void spi_crc_length_set(uint32_t spi_periph, uint16_t crc_length);
+
+#endif /* GD32E230_SPI_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_syscfg.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_syscfg.h
new file mode 100644
index 0000000000..9109a89602
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_syscfg.h
@@ -0,0 +1,187 @@
+/*!
+ \file GD32e230_syscfg.h
+ \brief definitions for the SYSCFG
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_SYSCFG_H
+#define GD32E230_SYSCFG_H
+
+#include "gd32e230.h"
+
+/* SYSCFG definitions */
+#define SYSCFG SYSCFG_BASE
+
+/* registers definitions */
+#define SYSCFG_CFG0 REG32(SYSCFG + 0x00U) /*!< system configuration register 0 */
+#define SYSCFG_EXTISS0 REG32(SYSCFG + 0x08U) /*!< EXTI sources selection register 0 */
+#define SYSCFG_EXTISS1 REG32(SYSCFG + 0x0CU) /*!< EXTI sources selection register 1 */
+#define SYSCFG_EXTISS2 REG32(SYSCFG + 0x10U) /*!< EXTI sources selection register 2 */
+#define SYSCFG_EXTISS3 REG32(SYSCFG + 0x14U) /*!< EXTI sources selection register 3 */
+#define SYSCFG_CFG2 REG32(SYSCFG + 0x18U) /*!< system configuration register 2 */
+#define SYSCFG_CPU_IRQ_LAT REG32(SYSCFG + 0x100U) /*!< IRQ Latency register */
+
+/* SYSCFG_CFG0 bits definitions */
+#define SYSCFG_CFG0_BOOT_MODE BITS(0,1) /*!< SYSCFG memory remap config */
+#define SYSCFG_CFG0_PA11_PA12_RMP BIT(4) /*!< PA11 and PA12 remapping bit for small packages (28 and 20 pins) */
+#define SYSCFG_CFG0_ADC_DMA_RMP BIT(8) /*!< ADC DMA remap config */
+#define SYSCFG_CFG0_USART0_TX_DMA_RMP BIT(9) /*!< USART0 Tx DMA remap config */
+#define SYSCFG_CFG0_USART0_RX_DMA_RMP BIT(10) /*!< USART0 Rx DMA remap config */
+#define SYSCFG_CFG0_TIMER15_DMA_RMP BIT(11) /*!< TIMER 15 DMA remap config */
+#define SYSCFG_CFG0_TIMER16_DMA_RMP BIT(12) /*!< TIMER 16 DMA remap config */
+#define SYSCFG_CFG0_PB9_HCCE BIT(19) /*!< PB9 pin high current capability enable */
+
+/* SYSCFG_EXTISS0 bits definitions */
+#define SYSCFG_EXTISS0_EXTI0_SS BITS(0,3) /*!< EXTI 0 configuration */
+#define SYSCFG_EXTISS0_EXTI1_SS BITS(4,7) /*!< EXTI 1 configuration */
+#define SYSCFG_EXTISS0_EXTI2_SS BITS(8,11) /*!< EXTI 2 configuration */
+#define SYSCFG_EXTISS0_EXTI3_SS BITS(12,15) /*!< EXTI 3 configuration */
+
+/* SYSCFG_EXTISS1 bits definitions */
+#define SYSCFG_EXTISS1_EXTI4_SS BITS(0,3) /*!< EXTI 4 configuration */
+#define SYSCFG_EXTISS1_EXTI5_SS BITS(4,7) /*!< EXTI 5 configuration */
+#define SYSCFG_EXTISS1_EXTI6_SS BITS(8,11) /*!< EXTI 6 configuration */
+#define SYSCFG_EXTISS1_EXTI7_SS BITS(12,15) /*!< EXTI 7 configuration */
+
+/* SYSCFG_EXTISS2 bits definitions */
+#define SYSCFG_EXTISS2_EXTI8_SS BITS(0,3) /*!< EXTI 8 configuration */
+#define SYSCFG_EXTISS2_EXTI9_SS BITS(4,7) /*!< EXTI 9 configuration */
+#define SYSCFG_EXTISS2_EXTI10_SS BITS(8,11) /*!< EXTI 10 configuration */
+#define SYSCFG_EXTISS2_EXTI11_SS BITS(12,15) /*!< EXTI 11 configuration */
+
+/* SYSCFG_EXTISS3 bits definitions */
+#define SYSCFG_EXTISS3_EXTI12_SS BITS(0,3) /*!< EXTI 12 configuration */
+#define SYSCFG_EXTISS3_EXTI13_SS BITS(4,7) /*!< EXTI 13 configuration */
+#define SYSCFG_EXTISS3_EXTI14_SS BITS(8,11) /*!< EXTI 14 configuration */
+#define SYSCFG_EXTISS3_EXTI15_SS BITS(12,15) /*!< EXTI 15 configuration */
+
+/* SYSCFG_CFG2 bits definitions */
+#define SYSCFG_CFG2_LOCKUP_LOCK BIT(0) /*!< enable and lock the LOCKUP (Hardfault) output of Cortex-M23 with break input of TIMER0/14/15/16 */
+#define SYSCFG_CFG2_SRAM_PARITY_ERROR_LOCK BIT(1) /*!< enable and lock the SRAM_PARITY error signal with break input of TIMER0/14/15/16 */
+#define SYSCFG_CFG2_LVD_LOCK BIT(2) /*!< enable and lock the LVD connection with TIMER0 break input and also the LVD_EN and LVDSEL[2:0] bits of the power control interface */
+#define SYSCFG_CFG2_SRAM_PCEF BIT(8) /*!< SRAM parity check error flag */
+
+/* SYSCFG_CPU_IRQ_LAT bits definitions */
+#define SYSCFG_CPU_IRQ_LAT_IRQ_LATENCY BITS(0,7) /*!< IRQ_LATENCY specifies the minimum number of cycles between an interrupt */
+
+/* constants definitions */
+/* DMA remap definitions */
+#define SYSCFG_PA11_REMAP_PA12 SYSCFG_CFG0_PA11_PA12_RMP /*!< PA11 PA12 remap */
+#define SYSCFG_DMA_REMAP_ADC SYSCFG_CFG0_ADC_DMA_RMP /*!< ADC DMA remap */
+#define SYSCFG_DMA_REMAP_USART0TX SYSCFG_CFG0_USART0_TX_DMA_RMP /*!< USART0_TX DMA remap */
+#define SYSCFG_DMA_REMAP_USART0RX SYSCFG_CFG0_USART0_RX_DMA_RMP /*!< USART0_RX DMA remap */
+#define SYSCFG_DMA_REMAP_TIMER15 SYSCFG_CFG0_TIMER15_DMA_RMP /*!< TIMER15 DMA remap */
+#define SYSCFG_DMA_REMAP_TIMER16 SYSCFG_CFG0_TIMER16_DMA_RMP /*!< TIMER16 DMA remap */
+
+/* high current definitions */
+#define SYSCFG_HIGH_CURRENT_ENABLE SYSCFG_CFG0_PB9_HCCE /*!< high current enable */
+#define SYSCFG_HIGH_CURRENT_DISABLE (~SYSCFG_CFG0_PB9_HCCE) /*!< high current disable */
+
+/* EXTI source select definition */
+#define EXTISS0 ((uint8_t)0x00U) /*!< EXTI source select register 0 */
+#define EXTISS1 ((uint8_t)0x01U) /*!< EXTI source select register 1 */
+#define EXTISS2 ((uint8_t)0x02U) /*!< EXTI source select register 2 */
+#define EXTISS3 ((uint8_t)0x03U) /*!< EXTI source select register 3 */
+
+/* EXTI source select mask bits definition */
+#define EXTI_SS_MASK BITS(0,3) /*!< EXTI source select mask */
+
+/* EXTI source select jumping step definition */
+#define EXTI_SS_JSTEP ((uint8_t)(0x04U)) /*!< EXTI source select jumping step */
+
+/* EXTI source select moving step definition */
+#define EXTI_SS_MSTEP(pin) (EXTI_SS_JSTEP * ((pin) % EXTI_SS_JSTEP)) /*!< EXTI source select moving step */
+
+/* EXTI source port definitions */
+#define EXTI_SOURCE_GPIOA ((uint8_t)0x00U) /*!< EXTI GPIOA configuration */
+#define EXTI_SOURCE_GPIOB ((uint8_t)0x01U) /*!< EXTI GPIOB configuration */
+#define EXTI_SOURCE_GPIOC ((uint8_t)0x02U) /*!< EXTI GPIOC configuration */
+#define EXTI_SOURCE_GPIOF ((uint8_t)0x05U) /*!< EXTI GPIOF configuration */
+
+/* EXTI source pin definitions */
+#define EXTI_SOURCE_PIN0 ((uint8_t)0x00U) /*!< EXTI GPIO pin0 configuration */
+#define EXTI_SOURCE_PIN1 ((uint8_t)0x01U) /*!< EXTI GPIO pin1 configuration */
+#define EXTI_SOURCE_PIN2 ((uint8_t)0x02U) /*!< EXTI GPIO pin2 configuration */
+#define EXTI_SOURCE_PIN3 ((uint8_t)0x03U) /*!< EXTI GPIO pin3 configuration */
+#define EXTI_SOURCE_PIN4 ((uint8_t)0x04U) /*!< EXTI GPIO pin4 configuration */
+#define EXTI_SOURCE_PIN5 ((uint8_t)0x05U) /*!< EXTI GPIO pin5 configuration */
+#define EXTI_SOURCE_PIN6 ((uint8_t)0x06U) /*!< EXTI GPIO pin6 configuration */
+#define EXTI_SOURCE_PIN7 ((uint8_t)0x07U) /*!< EXTI GPIO pin7 configuration */
+#define EXTI_SOURCE_PIN8 ((uint8_t)0x08U) /*!< EXTI GPIO pin8 configuration */
+#define EXTI_SOURCE_PIN9 ((uint8_t)0x09U) /*!< EXTI GPIO pin9 configuration */
+#define EXTI_SOURCE_PIN10 ((uint8_t)0x0AU) /*!< EXTI GPIO pin10 configuration */
+#define EXTI_SOURCE_PIN11 ((uint8_t)0x0BU) /*!< EXTI GPIO pin11 configuration */
+#define EXTI_SOURCE_PIN12 ((uint8_t)0x0CU) /*!< EXTI GPIO pin12 configuration */
+#define EXTI_SOURCE_PIN13 ((uint8_t)0x0DU) /*!< EXTI GPIO pin13 configuration */
+#define EXTI_SOURCE_PIN14 ((uint8_t)0x0EU) /*!< EXTI GPIO pin14 configuration */
+#define EXTI_SOURCE_PIN15 ((uint8_t)0x0FU) /*!< EXTI GPIO pin15 configuration */
+
+/* lock definitions */
+#define SYSCFG_LOCK_LOCKUP SYSCFG_CFG2_LOCKUP_LOCK /*!< LOCKUP output lock */
+#define SYSCFG_LOCK_SRAM_PARITY_ERROR SYSCFG_CFG2_SRAM_PARITY_ERROR_LOCK /*!< SRAM parity error lock */
+#define SYSCFG_LOCK_LVD SYSCFG_CFG2_LVD_LOCK /*!< LVD lock */
+
+/* SRAM parity check error flag definitions */
+#define SYSCFG_SRAM_PCEF SYSCFG_CFG2_SRAM_PCEF /*!< SRAM parity check error flag */
+
+/* SYSCFG_CPU_IRQ_LAT register IRQ_LATENCY value */
+#define IRQ_LATENCY(regval) (BITS(0,7) & ((uint32_t)(regval) << 0U)) /*!< write value to IRQ_LATENCY bits field */
+
+/* function declarations */
+/* deinit syscfg module */
+void syscfg_deinit(void);
+
+/* enable the DMA channels remapping */
+void syscfg_dma_remap_enable(uint32_t syscfg_dma_remap);
+/* disable the DMA channels remapping */
+void syscfg_dma_remap_disable(uint32_t syscfg_dma_remap);
+
+/* enable PB9 high current capability */
+void syscfg_high_current_enable(void);
+/* disable PB9 high current capability */
+void syscfg_high_current_disable(void);
+
+/* configure the GPIO pin as EXTI Line */
+void syscfg_exti_line_config(uint8_t exti_port, uint8_t exti_pin);
+/* connect TIMER0/14/15/16 break input to the selected parameter */
+void syscfg_lock_config(uint32_t syscfg_lock);
+
+/* set the IRQ_LATENCY value */
+void irq_latency_set(uint8_t irq_latency);
+
+/* check if the specified flag in SYSCFG_CFG2 is set or not */
+FlagStatus syscfg_flag_get(uint32_t syscfg_flag);
+/* clear the flag in SYSCFG_CFG2 by writing 1 */
+void syscfg_flag_clear(uint32_t syscfg_flag);
+
+#endif /* GD32E230_SYSCFG_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_timer.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_timer.h
new file mode 100644
index 0000000000..c69aa8f895
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_timer.h
@@ -0,0 +1,760 @@
+/*!
+ \file gd32e230_timer.h
+ \brief definitions for the TIMER
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_TIMER_H
+#define GD32E230_TIMER_H
+
+#include "gd32e230.h"
+
+/* TIMERx(x=0,1,2,5,13..16) definitions */
+#define TIMER0 (TIMER_BASE + 0x00012C00U)
+#define TIMER2 (TIMER_BASE + 0x00000400U)
+#define TIMER5 (TIMER_BASE + 0x00001000U)
+#define TIMER13 (TIMER_BASE + 0x00002000U)
+#define TIMER14 (TIMER_BASE + 0x00014000U)
+#define TIMER15 (TIMER_BASE + 0x00014400U)
+#define TIMER16 (TIMER_BASE + 0x00014800U)
+
+/* registers definitions */
+#define TIMER_CTL0(timerx) REG32((timerx) + 0x00U) /*!< TIMER control register 0 */
+#define TIMER_CTL1(timerx) REG32((timerx) + 0x04U) /*!< TIMER control register 1 */
+#define TIMER_SMCFG(timerx) REG32((timerx) + 0x08U) /*!< TIMER slave mode configuration register */
+#define TIMER_DMAINTEN(timerx) REG32((timerx) + 0x0CU) /*!< TIMER DMA and interrupt enable register */
+#define TIMER_INTF(timerx) REG32((timerx) + 0x10U) /*!< TIMER interrupt flag register */
+#define TIMER_SWEVG(timerx) REG32((timerx) + 0x14U) /*!< TIMER software event generation register */
+#define TIMER_CHCTL0(timerx) REG32((timerx) + 0x18U) /*!< TIMER channel control register 0 */
+#define TIMER_CHCTL1(timerx) REG32((timerx) + 0x1CU) /*!< TIMER channel control register 1 */
+#define TIMER_CHCTL2(timerx) REG32((timerx) + 0x20U) /*!< TIMER channel control register 2 */
+#define TIMER_CNT(timerx) REG32((timerx) + 0x24U) /*!< TIMER counter register */
+#define TIMER_PSC(timerx) REG32((timerx) + 0x28U) /*!< TIMER prescaler register */
+#define TIMER_CAR(timerx) REG32((timerx) + 0x2CU) /*!< TIMER counter auto reload register */
+#define TIMER_CREP(timerx) REG32((timerx) + 0x30U) /*!< TIMER counter repetition register */
+#define TIMER_CH0CV(timerx) REG32((timerx) + 0x34U) /*!< TIMER channel 0 capture/compare value register */
+#define TIMER_CH1CV(timerx) REG32((timerx) + 0x38U) /*!< TIMER channel 1 capture/compare value register */
+#define TIMER_CH2CV(timerx) REG32((timerx) + 0x3CU) /*!< TIMER channel 2 capture/compare value register */
+#define TIMER_CH3CV(timerx) REG32((timerx) + 0x40U) /*!< TIMER channel 3 capture/compare value register */
+#define TIMER_CCHP(timerx) REG32((timerx) + 0x44U) /*!< TIMER complementary channel protection register */
+#define TIMER_DMACFG(timerx) REG32((timerx) + 0x48U) /*!< TIMER DMA configuration register */
+#define TIMER_DMATB(timerx) REG32((timerx) + 0x4CU) /*!< TIMER DMA transfer buffer register */
+#define TIMER_IRMP(timerx) REG32((timerx) + 0x50U) /*!< TIMER channel input remap register */
+#define TIMER_CFG(timerx) REG32((timerx) + 0xFCU) /*!< TIMER configuration register */
+
+/* bits definitions */
+/* TIMER_CTL0 */
+#define TIMER_CTL0_CEN BIT(0) /*!< TIMER counter enable */
+#define TIMER_CTL0_UPDIS BIT(1) /*!< update disable */
+#define TIMER_CTL0_UPS BIT(2) /*!< update source */
+#define TIMER_CTL0_SPM BIT(3) /*!< single pulse mode */
+#define TIMER_CTL0_DIR BIT(4) /*!< timer counter direction */
+#define TIMER_CTL0_CAM BITS(5,6) /*!< center-aligned mode selection */
+#define TIMER_CTL0_ARSE BIT(7) /*!< auto-reload shadow enable */
+#define TIMER_CTL0_CKDIV BITS(8,9) /*!< clock division */
+
+/* TIMER_CTL1 */
+#define TIMER_CTL1_CCSE BIT(0) /*!< commutation control shadow enable */
+#define TIMER_CTL1_CCUC BIT(2) /*!< commutation control shadow register update control */
+#define TIMER_CTL1_DMAS BIT(3) /*!< DMA request source selection */
+#define TIMER_CTL1_MMC BITS(4,6) /*!< master mode control */
+#define TIMER_CTL1_TI0S BIT(7) /*!< channel 0 trigger input selection(hall mode selection) */
+#define TIMER_CTL1_ISO0 BIT(8) /*!< idle state of channel 0 output */
+#define TIMER_CTL1_ISO0N BIT(9) /*!< idle state of channel 0 complementary output */
+#define TIMER_CTL1_ISO1 BIT(10) /*!< idle state of channel 1 output */
+#define TIMER_CTL1_ISO1N BIT(11) /*!< idle state of channel 1 complementary output */
+#define TIMER_CTL1_ISO2 BIT(12) /*!< idle state of channel 2 output */
+#define TIMER_CTL1_ISO2N BIT(13) /*!< idle state of channel 2 complementary output */
+#define TIMER_CTL1_ISO3 BIT(14) /*!< idle state of channel 3 output */
+
+/* TIMER_SMCFG */
+#define TIMER_SMCFG_SMC BITS(0,2) /*!< slave mode control */
+#define TIMER_SMCFG_OCRC BIT(3) /*!< OCPRE clear source selection */
+#define TIMER_SMCFG_TRGS BITS(4,6) /*!< trigger selection */
+#define TIMER_SMCFG_MSM BIT(7) /*!< master-slave mode */
+#define TIMER_SMCFG_ETFC BITS(8,11) /*!< external trigger filter control */
+#define TIMER_SMCFG_ETPSC BITS(12,13) /*!< external trigger prescaler */
+#define TIMER_SMCFG_SMC1 BIT(14) /*!< part of SMC for enable external clock mode 1 */
+#define TIMER_SMCFG_ETP BIT(15) /*!< external trigger polarity */
+
+/* TIMER_DMAINTEN */
+#define TIMER_DMAINTEN_UPIE BIT(0) /*!< update interrupt enable */
+#define TIMER_DMAINTEN_CH0IE BIT(1) /*!< channel 0 capture/compare interrupt enable */
+#define TIMER_DMAINTEN_CH1IE BIT(2) /*!< channel 1 capture/compare interrupt enable */
+#define TIMER_DMAINTEN_CH2IE BIT(3) /*!< channel 2 capture/compare interrupt enable */
+#define TIMER_DMAINTEN_CH3IE BIT(4) /*!< channel 3 capture/compare interrupt enable */
+#define TIMER_DMAINTEN_CMTIE BIT(5) /*!< commutation interrupt request enable */
+#define TIMER_DMAINTEN_TRGIE BIT(6) /*!< trigger interrupt enable */
+#define TIMER_DMAINTEN_BRKIE BIT(7) /*!< break interrupt enable */
+#define TIMER_DMAINTEN_UPDEN BIT(8) /*!< update DMA request enable */
+#define TIMER_DMAINTEN_CH0DEN BIT(9) /*!< channel 0 DMA request enable */
+#define TIMER_DMAINTEN_CH1DEN BIT(10) /*!< channel 1 DMA request enable */
+#define TIMER_DMAINTEN_CH2DEN BIT(11) /*!< channel 2 DMA request enable */
+#define TIMER_DMAINTEN_CH3DEN BIT(12) /*!< channel 3 DMA request enable */
+#define TIMER_DMAINTEN_CMTDEN BIT(13) /*!< commutation DMA request enable */
+#define TIMER_DMAINTEN_TRGDEN BIT(14) /*!< trigger DMA request enable */
+
+/* TIMER_INTF */
+#define TIMER_INTF_UPIF BIT(0) /*!< update interrupt flag */
+#define TIMER_INTF_CH0IF BIT(1) /*!< channel 0 capture/compare interrupt flag */
+#define TIMER_INTF_CH1IF BIT(2) /*!< channel 1 capture/compare interrupt flag */
+#define TIMER_INTF_CH2IF BIT(3) /*!< channel 2 capture/compare interrupt flag */
+#define TIMER_INTF_CH3IF BIT(4) /*!< channel 3 capture/compare interrupt flag */
+#define TIMER_INTF_CMTIF BIT(5) /*!< channel commutation interrupt flag */
+#define TIMER_INTF_TRGIF BIT(6) /*!< trigger interrupt flag */
+#define TIMER_INTF_BRKIF BIT(7) /*!< break interrupt flag */
+#define TIMER_INTF_CH0OF BIT(9) /*!< channel 0 overcapture flag */
+#define TIMER_INTF_CH1OF BIT(10) /*!< channel 1 overcapture flag */
+#define TIMER_INTF_CH2OF BIT(11) /*!< channel 2 overcapture flag */
+#define TIMER_INTF_CH3OF BIT(12) /*!< channel 3 overcapture flag */
+
+/* TIMER_SWEVG */
+#define TIMER_SWEVG_UPG BIT(0) /*!< update event generate */
+#define TIMER_SWEVG_CH0G BIT(1) /*!< channel 0 capture or compare event generation */
+#define TIMER_SWEVG_CH1G BIT(2) /*!< channel 1 capture or compare event generation */
+#define TIMER_SWEVG_CH2G BIT(3) /*!< channel 2 capture or compare event generation */
+#define TIMER_SWEVG_CH3G BIT(4) /*!< channel 3 capture or compare event generation */
+#define TIMER_SWEVG_CMTG BIT(5) /*!< channel commutation event generation */
+#define TIMER_SWEVG_TRGG BIT(6) /*!< trigger event generation */
+#define TIMER_SWEVG_BRKG BIT(7) /*!< break event generation */
+
+/* TIMER_CHCTL0 */
+/* output compare mode */
+#define TIMER_CHCTL0_CH0MS BITS(0,1) /*!< channel 0 mode selection */
+#define TIMER_CHCTL0_CH0COMFEN BIT(2) /*!< channel 0 output compare fast enable */
+#define TIMER_CHCTL0_CH0COMSEN BIT(3) /*!< channel 0 output compare shadow enable */
+#define TIMER_CHCTL0_CH0COMCTL BITS(4,6) /*!< channel 0 output compare mode */
+#define TIMER_CHCTL0_CH0COMCEN BIT(7) /*!< channel 0 output compare clear enable */
+#define TIMER_CHCTL0_CH1MS BITS(8,9) /*!< channel 1 mode selection */
+#define TIMER_CHCTL0_CH1COMFEN BIT(10) /*!< channel 1 output compare fast enable */
+#define TIMER_CHCTL0_CH1COMSEN BIT(11) /*!< channel 1 output compare shadow enable */
+#define TIMER_CHCTL0_CH1COMCTL BITS(12,14) /*!< channel 1 output compare mode */
+#define TIMER_CHCTL0_CH1COMCEN BIT(15) /*!< channel 1 output compare clear enable */
+/* input capture mode */
+#define TIMER_CHCTL0_CH0CAPPSC BITS(2,3) /*!< channel 0 input capture prescaler */
+#define TIMER_CHCTL0_CH0CAPFLT BITS(4,7) /*!< channel 0 input capture filter control */
+#define TIMER_CHCTL0_CH1CAPPSC BITS(10,11) /*!< channel 1 input capture prescaler */
+#define TIMER_CHCTL0_CH1CAPFLT BITS(12,15) /*!< channel 1 input capture filter control */
+
+/* TIMER_CHCTL1 */
+/* output compare mode */
+#define TIMER_CHCTL1_CH2MS BITS(0,1) /*!< channel 2 mode selection */
+#define TIMER_CHCTL1_CH2COMFEN BIT(2) /*!< channel 2 output compare fast enable */
+#define TIMER_CHCTL1_CH2COMSEN BIT(3) /*!< channel 2 output compare shadow enable */
+#define TIMER_CHCTL1_CH2COMCTL BITS(4,6) /*!< channel 2 output compare mode */
+#define TIMER_CHCTL1_CH2COMCEN BIT(7) /*!< channel 2 output compare clear enable */
+#define TIMER_CHCTL1_CH3MS BITS(8,9) /*!< channel 3 mode selection */
+#define TIMER_CHCTL1_CH3COMFEN BIT(10) /*!< channel 3 output compare fast enable */
+#define TIMER_CHCTL1_CH3COMSEN BIT(11) /*!< channel 3 output compare shadow enable */
+#define TIMER_CHCTL1_CH3COMCTL BITS(12,14) /*!< channel 3 output compare mode */
+#define TIMER_CHCTL1_CH3COMCEN BIT(15) /*!< channel 3 output compare clear enable */
+/* input capture mode */
+#define TIMER_CHCTL1_CH2CAPPSC BITS(2,3) /*!< channel 2 input capture prescaler */
+#define TIMER_CHCTL1_CH2CAPFLT BITS(4,7) /*!< channel 2 input capture filter control */
+#define TIMER_CHCTL1_CH3CAPPSC BITS(10,11) /*!< channel 3 input capture prescaler */
+#define TIMER_CHCTL1_CH3CAPFLT BITS(12,15) /*!< channel 3 input capture filter control */
+
+/* TIMER_CHCTL2 */
+#define TIMER_CHCTL2_CH0EN BIT(0) /*!< channel 0 capture/compare function enable */
+#define TIMER_CHCTL2_CH0P BIT(1) /*!< channel 0 capture/compare function polarity */
+#define TIMER_CHCTL2_CH0NEN BIT(2) /*!< channel 0 complementary output enable */
+#define TIMER_CHCTL2_CH0NP BIT(3) /*!< channel 0 complementary output polarity */
+#define TIMER_CHCTL2_CH1EN BIT(4) /*!< channel 1 capture/compare function enable */
+#define TIMER_CHCTL2_CH1P BIT(5) /*!< channel 1 capture/compare function polarity */
+#define TIMER_CHCTL2_CH1NEN BIT(6) /*!< channel 1 complementary output enable */
+#define TIMER_CHCTL2_CH1NP BIT(7) /*!< channel 1 complementary output polarity */
+#define TIMER_CHCTL2_CH2EN BIT(8) /*!< channel 2 capture/compare function enable */
+#define TIMER_CHCTL2_CH2P BIT(9) /*!< channel 2 capture/compare function polarity */
+#define TIMER_CHCTL2_CH2NEN BIT(10) /*!< channel 2 complementary output enable */
+#define TIMER_CHCTL2_CH2NP BIT(11) /*!< channel 2 complementary output polarity */
+#define TIMER_CHCTL2_CH3EN BIT(12) /*!< channel 3 capture/compare function enable */
+#define TIMER_CHCTL2_CH3P BIT(13) /*!< channel 3 capture/compare function polarity */
+#define TIMER_CHCTL2_CH3NP BIT(15) /*!< channel 3 complementary output polarity */
+
+/* TIMER_CNT */
+#define TIMER_CNT_CNT16 BITS(0,15) /*!< 16 bit timer counter */
+
+/* TIMER_PSC */
+#define TIMER_PSC_PSC BITS(0,15) /*!< prescaler value of the counter clock */
+
+/* TIMER_CAR */
+#define TIMER_CAR_CARL16 BITS(0,15) /*!< 16 bit counter auto reload value */
+
+/* TIMER_CREP */
+#define TIMER_CREP_CREP BITS(0,7) /*!< counter repetition value */
+
+/* TIMER_CH0CV */
+#define TIMER_CH0CV_CH0VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 0 */
+
+/* TIMER_CH1CV */
+#define TIMER_CH1CV_CH1VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 1 */
+
+/* TIMER_CH2CV */
+#define TIMER_CH2CV_CH2VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 2 */
+
+/* TIMER_CH3CV */
+#define TIMER_CH3CV_CH3VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 3 */
+
+/* TIMER_CCHP */
+#define TIMER_CCHP_DTCFG BITS(0,7) /*!< dead time configure */
+#define TIMER_CCHP_PROT BITS(8,9) /*!< complementary register protect control */
+#define TIMER_CCHP_IOS BIT(10) /*!< idle mode off-state configure */
+#define TIMER_CCHP_ROS BIT(11) /*!< run mode off-state configure */
+#define TIMER_CCHP_BRKEN BIT(12) /*!< break enable */
+#define TIMER_CCHP_BRKP BIT(13) /*!< break polarity */
+#define TIMER_CCHP_OAEN BIT(14) /*!< output automatic enable */
+#define TIMER_CCHP_POEN BIT(15) /*!< primary output enable */
+
+/* TIMER_DMACFG */
+#define TIMER_DMACFG_DMATA BITS(0,4) /*!< DMA transfer access start address */
+#define TIMER_DMACFG_DMATC BITS(8,12) /*!< DMA transfer count */
+
+/* TIMER_DMATB */
+#define TIMER_DMATB_DMATB BITS(0,15) /*!< DMA transfer buffer address */
+
+/* TIMER_IRMP */
+#define TIMER13_IRMP_CI0_RMP BITS(0,1) /*!< TIMER13 channel 0 input remap */
+
+/* TIMER_CFG */
+#define TIMER_CFG_OUTSEL BIT(0) /*!< the output value selection */
+#define TIMER_CFG_CHVSEL BIT(1) /*!< write CHxVAL register selection */
+
+/* constants definitions */
+/* TIMER init parameter struct definitions*/
+typedef struct
+{
+ uint16_t prescaler; /*!< prescaler value */
+ uint16_t alignedmode; /*!< aligned mode */
+ uint16_t counterdirection; /*!< counter direction */
+ uint16_t clockdivision; /*!< clock division value */
+ uint32_t period; /*!< period value */
+ uint8_t repetitioncounter; /*!< the counter repetition value */
+}timer_parameter_struct;
+
+/* break parameter struct definitions*/
+typedef struct
+{
+ uint16_t runoffstate; /*!< run mode off-state */
+ uint16_t ideloffstate; /*!< idle mode off-state */
+ uint16_t deadtime; /*!< dead time */
+ uint16_t breakpolarity; /*!< break polarity */
+ uint16_t outputautostate; /*!< output automatic enable */
+ uint16_t protectmode; /*!< complementary register protect control */
+ uint16_t breakstate; /*!< break enable */
+}timer_break_parameter_struct;
+
+/* channel output parameter struct definitions */
+typedef struct
+{
+ uint16_t outputstate; /*!< channel output state */
+ uint16_t outputnstate; /*!< channel complementary output state */
+ uint16_t ocpolarity; /*!< channel output polarity */
+ uint16_t ocnpolarity; /*!< channel complementary output polarity */
+ uint16_t ocidlestate; /*!< idle state of channel output */
+ uint16_t ocnidlestate; /*!< idle state of channel complementary output */
+}timer_oc_parameter_struct;
+
+/* channel input parameter struct definitions */
+typedef struct
+{
+ uint16_t icpolarity; /*!< channel input polarity */
+ uint16_t icselection; /*!< channel input mode selection */
+ uint16_t icprescaler; /*!< channel input capture prescaler */
+ uint16_t icfilter; /*!< channel input capture filter control */
+}timer_ic_parameter_struct;
+
+/* TIMER interrupt enable or disable */
+#define TIMER_INT_UP TIMER_DMAINTEN_UPIE /*!< update interrupt */
+#define TIMER_INT_CH0 TIMER_DMAINTEN_CH0IE /*!< channel 0 interrupt */
+#define TIMER_INT_CH1 TIMER_DMAINTEN_CH1IE /*!< channel 1 interrupt */
+#define TIMER_INT_CH2 TIMER_DMAINTEN_CH2IE /*!< channel 2 interrupt */
+#define TIMER_INT_CH3 TIMER_DMAINTEN_CH3IE /*!< channel 3 interrupt */
+#define TIMER_INT_CMT TIMER_DMAINTEN_CMTIE /*!< channel commutation interrupt flag */
+#define TIMER_INT_TRG TIMER_DMAINTEN_TRGIE /*!< trigger interrupt */
+#define TIMER_INT_BRK TIMER_DMAINTEN_BRKIE /*!< break interrupt */
+
+/* TIMER flag */
+#define TIMER_FLAG_UP TIMER_INTF_UPIF /*!< update flag */
+#define TIMER_FLAG_CH0 TIMER_INTF_CH0IF /*!< channel 0 flag */
+#define TIMER_FLAG_CH1 TIMER_INTF_CH1IF /*!< channel 1 flag */
+#define TIMER_FLAG_CH2 TIMER_INTF_CH2IF /*!< channel 2 flag */
+#define TIMER_FLAG_CH3 TIMER_INTF_CH3IF /*!< channel 3 flag */
+#define TIMER_FLAG_CMT TIMER_INTF_CMTIF /*!< channel commutation flag */
+#define TIMER_FLAG_TRG TIMER_INTF_TRGIF /*!< trigger flag */
+#define TIMER_FLAG_BRK TIMER_INTF_BRKIF /*!< break flag */
+#define TIMER_FLAG_CH0O TIMER_INTF_CH0OF /*!< channel 0 overcapture flag */
+#define TIMER_FLAG_CH1O TIMER_INTF_CH1OF /*!< channel 1 overcapture flag */
+#define TIMER_FLAG_CH2O TIMER_INTF_CH2OF /*!< channel 2 overcapture flag */
+#define TIMER_FLAG_CH3O TIMER_INTF_CH3OF /*!< channel 3 overcapture flag */
+
+/* TIMER interrupt flag */
+#define TIMER_INT_FLAG_UP TIMER_INTF_UPIF /*!< update interrupt flag */
+#define TIMER_INT_FLAG_CH0 TIMER_INTF_CH0IF /*!< channel 0 interrupt flag */
+#define TIMER_INT_FLAG_CH1 TIMER_INTF_CH1IF /*!< channel 1 interrupt flag */
+#define TIMER_INT_FLAG_CH2 TIMER_INTF_CH2IF /*!< channel 2 interrupt flag */
+#define TIMER_INT_FLAG_CH3 TIMER_INTF_CH3IF /*!< channel 3 interrupt flag */
+#define TIMER_INT_FLAG_CMT TIMER_INTF_CMTIF /*!< channel commutation interrupt flag */
+#define TIMER_INT_FLAG_TRG TIMER_INTF_TRGIF /*!< trigger interrupt flag */
+#define TIMER_INT_FLAG_BRK TIMER_INTF_BRKIF
+
+/* TIMER DMA source enable */
+#define TIMER_DMA_UPD ((uint16_t)TIMER_DMAINTEN_UPDEN) /*!< update DMA enable */
+#define TIMER_DMA_CH0D ((uint16_t)TIMER_DMAINTEN_CH0DEN) /*!< channel 0 DMA enable */
+#define TIMER_DMA_CH1D ((uint16_t)TIMER_DMAINTEN_CH1DEN) /*!< channel 1 DMA enable */
+#define TIMER_DMA_CH2D ((uint16_t)TIMER_DMAINTEN_CH2DEN) /*!< channel 2 DMA enable */
+#define TIMER_DMA_CH3D ((uint16_t)TIMER_DMAINTEN_CH3DEN) /*!< channel 3 DMA enable */
+#define TIMER_DMA_CMTD ((uint16_t)TIMER_DMAINTEN_CMTDEN) /*!< commutation DMA request enable */
+#define TIMER_DMA_TRGD ((uint16_t)TIMER_DMAINTEN_TRGDEN) /*!< trigger DMA enable */
+
+/* channel DMA request source selection */
+#define TIMER_DMAREQUEST_UPDATEEVENT TIMER_CTL1_DMAS /*!< DMA request of channel y is sent when update event occurs */
+#define TIMER_DMAREQUEST_CHANNELEVENT ((uint32_t)0x00000000U) /*!< DMA request of channel y is sent when channel y event occurs */
+
+/* DMA access base address */
+#define DMACFG_DMATA(regval) (BITS(0, 4) & ((uint32_t)(regval) << 0U))
+#define TIMER_DMACFG_DMATA_CTL0 DMACFG_DMATA(0) /*!< DMA transfer address is TIMER_CTL0 */
+#define TIMER_DMACFG_DMATA_CTL1 DMACFG_DMATA(1) /*!< DMA transfer address is TIMER_CTL1 */
+#define TIMER_DMACFG_DMATA_SMCFG DMACFG_DMATA(2) /*!< DMA transfer address is TIMER_SMCFG */
+#define TIMER_DMACFG_DMATA_DMAINTEN DMACFG_DMATA(3) /*!< DMA transfer address is TIMER_DMAINTEN */
+#define TIMER_DMACFG_DMATA_INTF DMACFG_DMATA(4) /*!< DMA transfer address is TIMER_INTF */
+#define TIMER_DMACFG_DMATA_SWEVG DMACFG_DMATA(5) /*!< DMA transfer address is TIMER_SWEVG */
+#define TIMER_DMACFG_DMATA_CHCTL0 DMACFG_DMATA(6) /*!< DMA transfer address is TIMER_CHCTL0 */
+#define TIMER_DMACFG_DMATA_CHCTL1 DMACFG_DMATA(7) /*!< DMA transfer address is TIMER_CHCTL1 */
+#define TIMER_DMACFG_DMATA_CHCTL2 DMACFG_DMATA(8) /*!< DMA transfer address is TIMER_CHCTL2 */
+#define TIMER_DMACFG_DMATA_CNT DMACFG_DMATA(9) /*!< DMA transfer address is TIMER_CNT */
+#define TIMER_DMACFG_DMATA_PSC DMACFG_DMATA(10) /*!< DMA transfer address is TIMER_PSC */
+#define TIMER_DMACFG_DMATA_CAR DMACFG_DMATA(11) /*!< DMA transfer address is TIMER_CAR */
+#define TIMER_DMACFG_DMATA_CREP DMACFG_DMATA(12) /*!< DMA transfer address is TIMER_CREP */
+#define TIMER_DMACFG_DMATA_CH0CV DMACFG_DMATA(13) /*!< DMA transfer address is TIMER_CH0CV */
+#define TIMER_DMACFG_DMATA_CH1CV DMACFG_DMATA(14) /*!< DMA transfer address is TIMER_CH1CV */
+#define TIMER_DMACFG_DMATA_CH2CV DMACFG_DMATA(15) /*!< DMA transfer address is TIMER_CH2CV */
+#define TIMER_DMACFG_DMATA_CH3CV DMACFG_DMATA(16) /*!< DMA transfer address is TIMER_CH3CV */
+#define TIMER_DMACFG_DMATA_CCHP DMACFG_DMATA(17) /*!< DMA transfer address is TIMER_CCHP */
+#define TIMER_DMACFG_DMATA_DMACFG DMACFG_DMATA(18) /*!< DMA transfer address is TIMER_DMACFG */
+
+/* DMA access burst length */
+#define DMACFG_DMATC(regval) (BITS(8, 12) & ((uint32_t)(regval) << 8U))
+#define TIMER_DMACFG_DMATC_1TRANSFER DMACFG_DMATC(0) /*!< DMA transfer 1 time */
+#define TIMER_DMACFG_DMATC_2TRANSFER DMACFG_DMATC(1) /*!< DMA transfer 2 times */
+#define TIMER_DMACFG_DMATC_3TRANSFER DMACFG_DMATC(2) /*!< DMA transfer 3 times */
+#define TIMER_DMACFG_DMATC_4TRANSFER DMACFG_DMATC(3) /*!< DMA transfer 4 times */
+#define TIMER_DMACFG_DMATC_5TRANSFER DMACFG_DMATC(4) /*!< DMA transfer 5 times */
+#define TIMER_DMACFG_DMATC_6TRANSFER DMACFG_DMATC(5) /*!< DMA transfer 6 times */
+#define TIMER_DMACFG_DMATC_7TRANSFER DMACFG_DMATC(6) /*!< DMA transfer 7 times */
+#define TIMER_DMACFG_DMATC_8TRANSFER DMACFG_DMATC(7) /*!< DMA transfer 8 times */
+#define TIMER_DMACFG_DMATC_9TRANSFER DMACFG_DMATC(8) /*!< DMA transfer 9 times */
+#define TIMER_DMACFG_DMATC_10TRANSFER DMACFG_DMATC(9) /*!< DMA transfer 10 times */
+#define TIMER_DMACFG_DMATC_11TRANSFER DMACFG_DMATC(10) /*!< DMA transfer 11 times */
+#define TIMER_DMACFG_DMATC_12TRANSFER DMACFG_DMATC(11) /*!< DMA transfer 12 times */
+#define TIMER_DMACFG_DMATC_13TRANSFER DMACFG_DMATC(12) /*!< DMA transfer 13 times */
+#define TIMER_DMACFG_DMATC_14TRANSFER DMACFG_DMATC(13) /*!< DMA transfer 14 times */
+#define TIMER_DMACFG_DMATC_15TRANSFER DMACFG_DMATC(14) /*!< DMA transfer 15 times */
+#define TIMER_DMACFG_DMATC_16TRANSFER DMACFG_DMATC(15) /*!< DMA transfer 16 times */
+#define TIMER_DMACFG_DMATC_17TRANSFER DMACFG_DMATC(16) /*!< DMA transfer 17 times */
+#define TIMER_DMACFG_DMATC_18TRANSFER DMACFG_DMATC(17) /*!< DMA transfer 18 times */
+
+/* TIMER software event generation source */
+#define TIMER_EVENT_SRC_UPG ((uint16_t)0x0001U) /*!< update event generation */
+#define TIMER_EVENT_SRC_CH0G ((uint16_t)0x0002U) /*!< channel 0 capture or compare event generation */
+#define TIMER_EVENT_SRC_CH1G ((uint16_t)0x0004U) /*!< channel 1 capture or compare event generation */
+#define TIMER_EVENT_SRC_CH2G ((uint16_t)0x0008U) /*!< channel 2 capture or compare event generation */
+#define TIMER_EVENT_SRC_CH3G ((uint16_t)0x0010U) /*!< channel 3 capture or compare event generation */
+#define TIMER_EVENT_SRC_CMTG ((uint16_t)0x0020U) /*!< channel commutation event generation */
+#define TIMER_EVENT_SRC_TRGG ((uint16_t)0x0040U) /*!< trigger event generation */
+#define TIMER_EVENT_SRC_BRKG ((uint16_t)0x0080U) /*!< break event generation */
+
+/* center-aligned mode selection */
+#define CTL0_CAM(regval) ((uint16_t)(BITS(5, 6) & ((uint32_t)(regval) << 5U)))
+#define TIMER_COUNTER_EDGE CTL0_CAM(0) /*!< edge-aligned mode */
+#define TIMER_COUNTER_CENTER_DOWN CTL0_CAM(1) /*!< center-aligned and counting down assert mode */
+#define TIMER_COUNTER_CENTER_UP CTL0_CAM(2) /*!< center-aligned and counting up assert mode */
+#define TIMER_COUNTER_CENTER_BOTH CTL0_CAM(3) /*!< center-aligned and counting up/down assert mode */
+
+/* TIMER prescaler reload mode */
+#define TIMER_PSC_RELOAD_NOW TIMER_SWEVG_UPG /*!< the prescaler is loaded right now */
+#define TIMER_PSC_RELOAD_UPDATE ((uint32_t)0x00000000U) /*!< the prescaler is loaded at the next update event */
+
+/* count direction */
+#define TIMER_COUNTER_UP ((uint16_t)0x0000U) /*!< counter up direction */
+#define TIMER_COUNTER_DOWN ((uint16_t)TIMER_CTL0_DIR) /*!< counter down direction */
+
+/* specify division ratio between TIMER clock and dead-time and sampling clock */
+#define CTL0_CKDIV(regval) ((uint16_t)(BITS(8, 9) & ((uint32_t)(regval) << 8U)))
+#define TIMER_CKDIV_DIV1 CTL0_CKDIV(0) /*!< clock division value is 1, fDTS=fTIMER_CK */
+#define TIMER_CKDIV_DIV2 CTL0_CKDIV(1) /*!< clock division value is 2, fDTS= fTIMER_CK/2 */
+#define TIMER_CKDIV_DIV4 CTL0_CKDIV(2) /*!< clock division value is 4, fDTS= fTIMER_CK/4 */
+
+/* single pulse mode */
+#define TIMER_SP_MODE_SINGLE TIMER_CTL0_SPM /*!< single pulse mode */
+#define TIMER_SP_MODE_REPETITIVE ((uint32_t)0x00000000U) /*!< repetitive pulse mode */
+
+/* update source */
+#define TIMER_UPDATE_SRC_REGULAR TIMER_CTL0_UPS /*!< update generate only by counter overflow/underflow */
+#define TIMER_UPDATE_SRC_GLOBAL ((uint32_t)0x00000000U) /*!< update generate by setting of UPG bit or the counter overflow/underflow,or the slave mode controller trigger */
+
+/* run mode off-state configure */
+#define TIMER_ROS_STATE_ENABLE ((uint16_t)TIMER_CCHP_ROS) /*!< when POEN bit is set, the channel output signals (CHx_O/CHx_ON) are enabled, with relationship to CHxEN/CHxNEN bits */
+#define TIMER_ROS_STATE_DISABLE ((uint16_t)0x0000U) /*!< when POEN bit is set, the channel output signals (CHx_O/CHx_ON) are disabled */
+
+/* idle mode off-state configure */
+#define TIMER_IOS_STATE_ENABLE ((uint16_t)TIMER_CCHP_IOS) /*!< when POEN bit is reset, he channel output signals (CHx_O/CHx_ON) are enabled, with relationship to CHxEN/CHxNEN bits */
+#define TIMER_IOS_STATE_DISABLE ((uint16_t)0x0000U) /*!< when POEN bit is reset, the channel output signals (CHx_O/CHx_ON) are disabled */
+
+/* break input polarity */
+#define TIMER_BREAK_POLARITY_LOW ((uint16_t)0x0000U) /*!< break input polarity is low */
+#define TIMER_BREAK_POLARITY_HIGH ((uint16_t)TIMER_CCHP_BRKP) /*!< break input polarity is high */
+
+/* output automatic enable */
+#define TIMER_OUTAUTO_ENABLE ((uint16_t)TIMER_CCHP_OAEN) /*!< output automatic enable */
+#define TIMER_OUTAUTO_DISABLE ((uint16_t)0x0000U) /*!< output automatic disable */
+
+/* complementary register protect control */
+#define CCHP_PROT(regval) ((uint16_t)(BITS(8, 9) & ((uint32_t)(regval) << 8U)))
+#define TIMER_CCHP_PROT_OFF CCHP_PROT(0) /*!< protect disable */
+#define TIMER_CCHP_PROT_0 CCHP_PROT(1) /*!< PROT mode 0 */
+#define TIMER_CCHP_PROT_1 CCHP_PROT(2) /*!< PROT mode 1 */
+#define TIMER_CCHP_PROT_2 CCHP_PROT(3) /*!< PROT mode 2 */
+
+/* break input enable */
+#define TIMER_BREAK_ENABLE ((uint16_t)TIMER_CCHP_BRKEN) /*!< break input enable */
+#define TIMER_BREAK_DISABLE ((uint16_t)0x0000U) /*!< break input disable */
+
+/* TIMER channel n(n=0,1,2,3) */
+#define TIMER_CH_0 ((uint16_t)0x0000U) /*!< TIMER channel 0(TIMERx(x=0,2,13..16)) */
+#define TIMER_CH_1 ((uint16_t)0x0001U) /*!< TIMER channel 1(TIMERx(x=0,2,14)) */
+#define TIMER_CH_2 ((uint16_t)0x0002U) /*!< TIMER channel 2(TIMERx(x=0,2)) */
+#define TIMER_CH_3 ((uint16_t)0x0003U) /*!< TIMER channel 3(TIMERx(x=0,2)) */
+#define TIMER_CH_0_1 ((uint16_t)0x0004U) /*!< TIMER channel 0 and 1 for function parameter */
+
+/* channel enable state*/
+#define TIMER_CCX_ENABLE ((uint32_t)0x00000001U) /*!< channel enable */
+#define TIMER_CCX_DISABLE ((uint32_t)0x00000000U) /*!< channel disable */
+
+/* channel complementary output enable state*/
+#define TIMER_CCXN_ENABLE ((uint16_t)0x0004U) /*!< channel complementary enable */
+#define TIMER_CCXN_DISABLE ((uint16_t)0x0000U) /*!< channel complementary disable */
+
+/* channel output polarity */
+#define TIMER_OC_POLARITY_HIGH ((uint16_t)0x0000U) /*!< channel output polarity is high */
+#define TIMER_OC_POLARITY_LOW ((uint16_t)0x0002U) /*!< channel output polarity is low */
+
+/* channel complementary output polarity */
+#define TIMER_OCN_POLARITY_HIGH ((uint16_t)0x0000U) /*!< channel complementary output polarity is high */
+#define TIMER_OCN_POLARITY_LOW ((uint16_t)0x0008U) /*!< channel complementary output polarity is low */
+
+/* idle state of channel output */
+#define TIMER_OC_IDLE_STATE_HIGH ((uint16_t)0x0100) /*!< idle state of channel output is high */
+#define TIMER_OC_IDLE_STATE_LOW ((uint16_t)0x0000) /*!< idle state of channel output is low */
+
+/* idle state of channel complementary output */
+#define TIMER_OCN_IDLE_STATE_HIGH ((uint16_t)0x0200U) /*!< idle state of channel complementary output is high */
+#define TIMER_OCN_IDLE_STATE_LOW ((uint16_t)0x0000U) /*!< idle state of channel complementary output is low */
+
+/* channel output compare mode */
+#define TIMER_OC_MODE_TIMING ((uint16_t)0x0000U) /*!< timing mode */
+#define TIMER_OC_MODE_ACTIVE ((uint16_t)0x0010U) /*!< active mode */
+#define TIMER_OC_MODE_INACTIVE ((uint16_t)0x0020U) /*!< inactive mode */
+#define TIMER_OC_MODE_TOGGLE ((uint16_t)0x0030U) /*!< toggle mode */
+#define TIMER_OC_MODE_LOW ((uint16_t)0x0040U) /*!< force low mode */
+#define TIMER_OC_MODE_HIGH ((uint16_t)0x0050U) /*!< force high mode */
+#define TIMER_OC_MODE_PWM0 ((uint16_t)0x0060U) /*!< PWM0 mode */
+#define TIMER_OC_MODE_PWM1 ((uint16_t)0x0070U) /*!< PWM1 mode*/
+
+/* channel output compare shadow enable */
+#define TIMER_OC_SHADOW_ENABLE ((uint16_t)0x0008U) /*!< channel output shadow state enable */
+#define TIMER_OC_SHADOW_DISABLE ((uint16_t)0x0000U) /*!< channel output shadow state disable */
+
+/* channel output compare fast enable */
+#define TIMER_OC_FAST_ENABLE ((uint16_t)0x0004) /*!< channel output fast function enable */
+#define TIMER_OC_FAST_DISABLE ((uint16_t)0x0000) /*!< channel output fast function disable */
+
+/* channel output compare clear enable */
+#define TIMER_OC_CLEAR_ENABLE ((uint16_t)0x0080U) /*!< channel output clear function enable */
+#define TIMER_OC_CLEAR_DISABLE ((uint16_t)0x0000U) /*!< channel output clear function disable */
+
+/* channel control shadow register update control */
+#define TIMER_UPDATECTL_CCU ((uint32_t)0x00000000U) /*!< the shadow registers are updated when CMTG bit is set */
+#define TIMER_UPDATECTL_CCUTRI TIMER_CTL1_CCUC /*!< the shadow registers are updated when CMTG bit is set or an rising edge of TRGI occurs */
+
+/* channel input capture polarity */
+#define TIMER_IC_POLARITY_RISING ((uint16_t)0x0000U) /*!< input capture rising edge */
+#define TIMER_IC_POLARITY_FALLING ((uint16_t)0x0002U) /*!< input capture falling edge */
+#define TIMER_IC_POLARITY_BOTH_EDGE ((uint16_t)0x000AU) /*!< input capture both edge */
+
+/* TIMER input capture selection */
+#define TIMER_IC_SELECTION_DIRECTTI ((uint16_t)0x0001U) /*!< channel y is configured as input and icy is mapped on CIy */
+#define TIMER_IC_SELECTION_INDIRECTTI ((uint16_t)0x0002U) /*!< channel y is configured as input and icy is mapped on opposite input */
+#define TIMER_IC_SELECTION_ITS ((uint16_t)0x0003U) /*!< channel y is configured as input and icy is mapped on ITS */
+
+/* channel input capture prescaler */
+#define TIMER_IC_PSC_DIV1 ((uint16_t)0x0000U) /*!< no prescaler */
+#define TIMER_IC_PSC_DIV2 ((uint16_t)0x0004U) /*!< divided by 2 */
+#define TIMER_IC_PSC_DIV4 ((uint16_t)0x0008U) /*!< divided by 4*/
+#define TIMER_IC_PSC_DIV8 ((uint16_t)0x000CU) /*!< divided by 8 */
+
+/* trigger selection */
+#define SMCFG_TRGSEL(regval) (BITS(4, 6) & ((uint32_t)(regval) << 4U))
+#define TIMER_SMCFG_TRGSEL_ITI0 SMCFG_TRGSEL(0) /*!< internal trigger 0 */
+#define TIMER_SMCFG_TRGSEL_ITI1 SMCFG_TRGSEL(1) /*!< internal trigger 1 */
+#define TIMER_SMCFG_TRGSEL_ITI2 SMCFG_TRGSEL(2) /*!< internal trigger 2 */
+#define TIMER_SMCFG_TRGSEL_ITI3 SMCFG_TRGSEL(3) /*!< internal trigger 3 */
+#define TIMER_SMCFG_TRGSEL_CI0F_ED SMCFG_TRGSEL(4) /*!< TI0 Edge Detector */
+#define TIMER_SMCFG_TRGSEL_CI0FE0 SMCFG_TRGSEL(5) /*!< filtered TIMER input 0 */
+#define TIMER_SMCFG_TRGSEL_CI1FE1 SMCFG_TRGSEL(6) /*!< filtered TIMER input 1 */
+#define TIMER_SMCFG_TRGSEL_ETIFP SMCFG_TRGSEL(7) /*!< external trigger */
+
+/* master mode control */
+#define CTL1_MMC(regval) (BITS(4, 6) & ((uint32_t)(regval) << 4U))
+#define TIMER_TRI_OUT_SRC_RESET CTL1_MMC(0) /*!< the UPG bit as trigger output */
+#define TIMER_TRI_OUT_SRC_ENABLE CTL1_MMC(1) /*!< the counter enable signal TIMER_CTL0_CEN as trigger output */
+#define TIMER_TRI_OUT_SRC_UPDATE CTL1_MMC(2) /*!< update event as trigger output */
+#define TIMER_TRI_OUT_SRC_CH0 CTL1_MMC(3) /*!< a capture or a compare match occurred in channal0 as trigger output TRGO */
+#define TIMER_TRI_OUT_SRC_O0CPRE CTL1_MMC(4) /*!< O0CPRE as trigger output */
+#define TIMER_TRI_OUT_SRC_O1CPRE CTL1_MMC(5) /*!< O1CPRE as trigger output */
+#define TIMER_TRI_OUT_SRC_O2CPRE CTL1_MMC(6) /*!< O2CPRE as trigger output */
+#define TIMER_TRI_OUT_SRC_O3CPRE CTL1_MMC(7) /*!< O3CPRE as trigger output */
+
+/* slave mode control */
+#define SMCFG_SMC(regval) (BITS(0, 2) & ((uint32_t)(regval) << 0U))
+#define TIMER_SLAVE_MODE_DISABLE SMCFG_SMC(0) /*!< slave mode disable */
+#define TIMER_ENCODER_MODE0 SMCFG_SMC(1) /*!< encoder mode 0 */
+#define TIMER_ENCODER_MODE1 SMCFG_SMC(2) /*!< encoder mode 1 */
+#define TIMER_ENCODER_MODE2 SMCFG_SMC(3) /*!< encoder mode 2 */
+#define TIMER_SLAVE_MODE_RESTART SMCFG_SMC(4) /*!< restart mode */
+#define TIMER_SLAVE_MODE_PAUSE SMCFG_SMC(5) /*!< pause mode */
+#define TIMER_SLAVE_MODE_EVENT SMCFG_SMC(6) /*!< event mode */
+#define TIMER_SLAVE_MODE_EXTERNAL0 SMCFG_SMC(7) /*!< external clock mode 0 */
+
+/* OCPRE clear source selection */
+#define TIMER_OCPRE_CLEAR_SOURCE_CLR ((uint8_t)0x00U) /*!< OCPRE_CLR_INT is connected to the OCPRE_CLR input */
+#define TIMER_OCPRE_CLEAR_SOURCE_ETIF ((uint8_t)0x01U) /*!< OCPRE_CLR_INT is connected to ETIF */
+#define TIMER_OCPRE_CLEAR_SOURCE_DISABLE ((uint8_t)0x02U) /*!< OCRC=0, and disable ETI */
+
+/* master slave mode selection */
+#define TIMER_MASTER_SLAVE_MODE_ENABLE TIMER_SMCFG_MSM /*!< master slave mode enable */
+#define TIMER_MASTER_SLAVE_MODE_DISABLE ((uint32_t)0x00000000U) /*!< master slave mode disable */
+
+/* external trigger prescaler */
+#define SMCFG_ETPSC(regval) (BITS(12, 13) & ((uint32_t)(regval) << 12U))
+#define TIMER_EXT_TRI_PSC_OFF SMCFG_ETPSC(0) /*!< no divided */
+#define TIMER_EXT_TRI_PSC_DIV2 SMCFG_ETPSC(1) /*!< divided by 2 */
+#define TIMER_EXT_TRI_PSC_DIV4 SMCFG_ETPSC(2) /*!< divided by 4 */
+#define TIMER_EXT_TRI_PSC_DIV8 SMCFG_ETPSC(3) /*!< divided by 8 */
+
+/* external trigger polarity */
+#define TIMER_ETP_FALLING TIMER_SMCFG_ETP /*!< active low or falling edge active */
+#define TIMER_ETP_RISING ((uint32_t)0x00000000U) /*!< active high or rising edge active */
+
+/* channel 0 trigger input selection */
+#define TIMER_HALLINTERFACE_ENABLE TIMER_CTL1_TI0S /*!< TIMER hall sensor mode enable */
+#define TIMER_HALLINTERFACE_DISABLE ((uint32_t)0x00000000U) /*!< TIMER hall sensor mode disable */
+
+/* TIMERx(x=0,2,13,14,15,16) write cc register selection */
+#define TIMER_CHVSEL_ENABLE ((uint16_t)TIMER_CFG_OUTSEL) /*!< write CHxVAL register selection enable */
+#define TIMER_CHVSEL_DISABLE ((uint16_t)0x0000U) /*!< write CC register selection enable */
+
+/* the output value selection */
+#define TIMER_OUTSEL_ENABLE ((uint16_t)TIMER_CFG_OUTSEL) /*!< output value selection enable */
+#define TIMER_OUTSEL_DISABLE ((uint16_t)0x0000U) /*!< output value selection enable */
+
+/* timer13 channel 0 input remap */
+#define TIMER13_IRMP(regval) (BITS(0, 1) & ((uint32_t)(regval) << 0U))
+#define TIMER13_CI0_RMP_GPIO TIMER13_IRMP(0) /*!< timer13 channel 0 input is connected to GPIO(TIMER13_CH0) */
+#define TIMER13_CI0_RMP_RTCCLK TIMER13_IRMP(1) /*!< timer13 channel 0 input is connected to the RTCCLK */
+#define TIMER13_CI0_RMP_HXTAL_DIV32 TIMER13_IRMP(2) /*!< timer13 channel 0 input is connected to HXTAL/32 clock */
+#define TIMER13_CI0_RMP_CKOUTSEL TIMER13_IRMP(3) /*!< timer13 channel 0 input is connected to CKOUTSEL */
+
+/* function declarations */
+/* TIMER timebase*/
+/* deinit a TIMER */
+void timer_deinit(uint32_t timer_periph);
+/* initialize TIMER init parameter struct */
+void timer_struct_para_init(timer_parameter_struct* initpara);
+/* initialize TIMER counter */
+void timer_init(uint32_t timer_periph, timer_parameter_struct* initpara);
+/* enable a TIMER */
+void timer_enable(uint32_t timer_periph);
+/* disable a TIMER */
+void timer_disable(uint32_t timer_periph);
+/* enable the auto reload shadow function */
+void timer_auto_reload_shadow_enable(uint32_t timer_periph);
+/* disable the auto reload shadow function */
+void timer_auto_reload_shadow_disable(uint32_t timer_periph);
+/* enable the update event */
+void timer_update_event_enable(uint32_t timer_periph);
+/* disable the update event */
+void timer_update_event_disable(uint32_t timer_periph);
+/* set TIMER counter alignment mode */
+void timer_counter_alignment(uint32_t timer_periph, uint16_t aligned);
+/* set TIMER counter up direction */
+void timer_counter_up_direction(uint32_t timer_periph);
+/* set TIMER counter down direction */
+void timer_counter_down_direction(uint32_t timer_periph);
+/* configure TIMER prescaler */
+void timer_prescaler_config(uint32_t timer_periph, uint16_t prescaler, uint8_t pscreload);
+/* configure TIMER repetition register value */
+void timer_repetition_value_config(uint32_t timer_periph, uint16_t repetition);
+/* configure TIMER autoreload register value */
+void timer_autoreload_value_config(uint32_t timer_periph, uint16_t autoreload);
+/* configure TIMER counter register value */
+void timer_counter_value_config(uint32_t timer_periph , uint16_t counter);
+/* read TIMER counter value */
+uint32_t timer_counter_read(uint32_t timer_periph);
+/* read TIMER prescaler value */
+uint16_t timer_prescaler_read(uint32_t timer_periph);
+/* configure TIMER single pulse mode */
+void timer_single_pulse_mode_config(uint32_t timer_periph, uint32_t spmode);
+/* configure TIMER update source */
+void timer_update_source_config(uint32_t timer_periph, uint32_t update);
+/* OCPRE clear source selection */
+void timer_ocpre_clear_source_config(uint32_t timer_periph, uint8_t ocpreclear);
+
+/* TIMER interrupt and flag*/
+/* enable the TIMER interrupt */
+void timer_interrupt_enable(uint32_t timer_periph, uint32_t interrupt);
+/* disable the TIMER interrupt */
+void timer_interrupt_disable(uint32_t timer_periph, uint32_t interrupt);
+/* get timer interrupt flag */
+FlagStatus timer_interrupt_flag_get(uint32_t timer_periph, uint32_t interrupt);
+/* clear TIMER interrupt flag */
+void timer_interrupt_flag_clear(uint32_t timer_periph, uint32_t interrupt);
+/* get TIMER flags */
+FlagStatus timer_flag_get(uint32_t timer_periph, uint32_t flag);
+/* clear TIMER flags */
+void timer_flag_clear(uint32_t timer_periph, uint32_t flag);
+
+/* timer DMA and event*/
+/* enable the TIMER DMA */
+void timer_dma_enable(uint32_t timer_periph, uint16_t dma);
+/* disable the TIMER DMA */
+void timer_dma_disable(uint32_t timer_periph, uint16_t dma);
+/* channel DMA request source selection */
+void timer_channel_dma_request_source_select(uint32_t timer_periph, uint8_t dma_request);
+/* configure the TIMER DMA transfer */
+void timer_dma_transfer_config(uint32_t timer_periph,uint32_t dma_baseaddr, uint32_t dma_lenth);
+/* software generate events */
+void timer_event_software_generate(uint32_t timer_periph, uint16_t event);
+
+/* TIMER channel complementary protection */
+/* initialize TIMER break parameter struct */
+void timer_break_struct_para_init(timer_break_parameter_struct* breakpara);
+/* configure TIMER break function */
+void timer_break_config(uint32_t timer_periph, timer_break_parameter_struct* breakpara);
+/* enable TIMER break function */
+void timer_break_enable(uint32_t timer_periph);
+/* disable TIMER break function */
+void timer_break_disable(uint32_t timer_periph);
+/* enable TIMER output automatic function */
+void timer_automatic_output_enable(uint32_t timer_periph);
+/* disable TIMER output automatic function */
+void timer_automatic_output_disable(uint32_t timer_periph);
+/* enable or disable TIMER primary output function */
+void timer_primary_output_config(uint32_t timer_periph, ControlStatus newvalue);
+/* enable or disable channel capture/compare control shadow register */
+void timer_channel_control_shadow_config(uint32_t timer_periph, ControlStatus newvalue);
+/* configure TIMER channel control shadow register update control */
+void timer_channel_control_shadow_update_config(uint32_t timer_periph, uint8_t ccuctl);
+
+/* TIMER channel output */
+/* initialize TIMER channel output parameter struct */
+void timer_channel_output_struct_para_init(timer_oc_parameter_struct* ocpara);
+/* configure TIMER channel output function */
+void timer_channel_output_config(uint32_t timer_periph,uint16_t channel, timer_oc_parameter_struct* ocpara);
+/* configure TIMER channel output compare mode */
+void timer_channel_output_mode_config(uint32_t timer_periph, uint16_t channel,uint16_t ocmode);
+/* configure TIMER channel output pulse value */
+void timer_channel_output_pulse_value_config(uint32_t timer_periph, uint16_t channel, uint32_t pulse);
+/* configure TIMER channel output shadow function */
+void timer_channel_output_shadow_config(uint32_t timer_periph, uint16_t channel, uint16_t ocshadow);
+/* configure TIMER channel output fast function */
+void timer_channel_output_fast_config(uint32_t timer_periph, uint16_t channel, uint16_t ocfast);
+/* configure TIMER channel output clear function */
+void timer_channel_output_clear_config(uint32_t timer_periph,uint16_t channel,uint16_t occlear);
+/* configure TIMER channel output polarity */
+void timer_channel_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocpolarity);
+/* configure TIMER channel complementary output polarity */
+void timer_channel_complementary_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnpolarity);
+/* configure TIMER channel enable state */
+void timer_channel_output_state_config(uint32_t timer_periph, uint16_t channel, uint32_t state);
+/* configure TIMER channel complementary output enable state */
+void timer_channel_complementary_output_state_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnstate);
+
+/* TIMER channel input */
+/* initialize TIMER channel input parameter struct */
+void timer_channel_input_struct_para_init(timer_ic_parameter_struct* icpara);
+/* configure TIMER input capture parameter */
+void timer_input_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpara);
+/* configure TIMER channel input capture prescaler value */
+void timer_channel_input_capture_prescaler_config(uint32_t timer_periph, uint16_t channel, uint16_t prescaler);
+/* read TIMER channel capture compare register value */
+uint32_t timer_channel_capture_value_register_read(uint32_t timer_periph, uint16_t channel);
+/* configure TIMER input pwm capture function */
+void timer_input_pwm_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpwm);
+/* configure TIMER hall sensor mode */
+void timer_hall_mode_config(uint32_t timer_periph, uint32_t hallmode);
+
+/* TIMER master and slave */
+/* select TIMER input trigger source */
+void timer_input_trigger_source_select(uint32_t timer_periph, uint32_t intrigger);
+/* select TIMER master mode output trigger source */
+void timer_master_output_trigger_source_select(uint32_t timer_periph, uint32_t outrigger);
+/* select TIMER slave mode */
+void timer_slave_mode_select(uint32_t timer_periph,uint32_t slavemode);
+/* configure TIMER master slave mode */
+void timer_master_slave_mode_config(uint32_t timer_periph, uint32_t masterslave);
+/* configure TIMER external trigger input */
+void timer_external_trigger_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
+/* configure TIMER quadrature decoder mode */
+void timer_quadrature_decoder_mode_config(uint32_t timer_periph, uint32_t decomode, uint16_t ic0polarity, uint16_t ic1polarity);
+/* configure TIMER internal clock mode */
+void timer_internal_clock_config(uint32_t timer_periph);
+/* configure TIMER the internal trigger as external clock input */
+void timer_internal_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t intrigger);
+/* configure TIMER the external trigger as external clock input */
+void timer_external_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t extrigger, uint16_t extpolarity,uint32_t extfilter);
+/* configure TIMER the external clock mode 0 */
+void timer_external_clock_mode0_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
+/* configure TIMER the external clock mode 1 */
+void timer_external_clock_mode1_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
+/* disable TIMER the external clock mode 1 */
+void timer_external_clock_mode1_disable(uint32_t timer_periph);
+/* configure TIMER channel remap function */
+void timer_channel_remap_config(uint32_t timer_periph,uint32_t remap);
+
+/* TIMER configure */
+/* configure TIMER write CHxVAL register selection */
+void timer_write_chxval_register_config(uint32_t timer_periph, uint16_t ccsel);
+/* configure TIMER output value selection */
+void timer_output_value_selection_config(uint32_t timer_periph, uint16_t outsel);
+
+#endif /* GD32E230_TIMER_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_usart.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_usart.h
new file mode 100644
index 0000000000..6cb6f61056
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_usart.h
@@ -0,0 +1,614 @@
+/*!
+ \file gd32e230_usart.h
+ \brief definitions for the USART
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_USART_H
+#define GD32E230_USART_H
+
+#include "gd32e230.h"
+
+/* USARTx(x=0,1) definitions */
+#define USART0 (USART_BASE + 0x0000F400U)
+#define USART1 USART_BASE
+
+/* registers definitions */
+#define USART_CTL0(usartx) REG32((usartx) + 0x00000000U) /*!< USART control register 0 */
+#define USART_CTL1(usartx) REG32((usartx) + 0x00000004U) /*!< USART control register 1 */
+#define USART_CTL2(usartx) REG32((usartx) + 0x00000008U) /*!< USART control register 2 */
+#define USART_BAUD(usartx) REG32((usartx) + 0x0000000CU) /*!< USART baud rate register */
+#define USART_GP(usartx) REG32((usartx) + 0x00000010U) /*!< USART guard time and prescaler register */
+#define USART_RT(usartx) REG32((usartx) + 0x00000014U) /*!< USART receiver timeout register */
+#define USART_CMD(usartx) REG32((usartx) + 0x00000018U) /*!< USART command register */
+#define USART_STAT(usartx) REG32((usartx) + 0x0000001CU) /*!< USART status register */
+#define USART_INTC(usartx) REG32((usartx) + 0x00000020U) /*!< USART status clear register */
+#define USART_RDATA(usartx) REG32((usartx) + 0x00000024U) /*!< USART receive data register */
+#define USART_TDATA(usartx) REG32((usartx) + 0x00000028U) /*!< USART transmit data register */
+#define USART_CHC(usartx) REG32((usartx) + 0x000000C0U) /*!< USART coherence control register */
+#define USART_RFCS(usartx) REG32((usartx) + 0x000000D0U) /*!< USART receive FIFO control and status register */
+
+/* bits definitions */
+/* USARTx_CTL0 */
+#define USART_CTL0_UEN BIT(0) /*!< USART enable */
+#define USART_CTL0_UESM BIT(1) /*!< USART enable in deep-sleep mode */
+#define USART_CTL0_REN BIT(2) /*!< receiver enable */
+#define USART_CTL0_TEN BIT(3) /*!< transmitter enable */
+#define USART_CTL0_IDLEIE BIT(4) /*!< idle line detected interrupt enable */
+#define USART_CTL0_RBNEIE BIT(5) /*!< read data buffer not empty interrupt and overrun error interrupt enable */
+#define USART_CTL0_TCIE BIT(6) /*!< transmission complete interrupt enable */
+#define USART_CTL0_TBEIE BIT(7) /*!< transmitter register empty interrupt enable */
+#define USART_CTL0_PERRIE BIT(8) /*!< parity error interrupt enable */
+#define USART_CTL0_PM BIT(9) /*!< parity mode */
+#define USART_CTL0_PCEN BIT(10) /*!< parity control enable */
+#define USART_CTL0_WM BIT(11) /*!< wakeup method in mute mode */
+#define USART_CTL0_WL BIT(12) /*!< word length */
+#define USART_CTL0_MEN BIT(13) /*!< mute mode enable */
+#define USART_CTL0_AMIE BIT(14) /*!< address match interrupt enable */
+#define USART_CTL0_OVSMOD BIT(15) /*!< oversample mode */
+#define USART_CTL0_DED BITS(16,20) /*!< driver enable deassertion time */
+#define USART_CTL0_DEA BITS(21,25) /*!< driver enable assertion time */
+#define USART_CTL0_RTIE BIT(26) /*!< receiver timeout interrupt enable */
+#define USART_CTL0_EBIE BIT(27) /*!< end of block interrupt enable */
+
+/* USARTx_CTL1 */
+#define USART_CTL1_ADDM BIT(4) /*!< address detection mode */
+#define USART_CTL1_LBLEN BIT(5) /*!< LIN break frame length */
+#define USART_CTL1_LBDIE BIT(6) /*!< LIN break detection interrupt enable */
+#define USART_CTL1_CLEN BIT(8) /*!< last bit clock pulse */
+#define USART_CTL1_CPH BIT(9) /*!< clock phase */
+#define USART_CTL1_CPL BIT(10) /*!< clock polarity */
+#define USART_CTL1_CKEN BIT(11) /*!< ck pin enable */
+#define USART_CTL1_STB BITS(12,13) /*!< stop bits length */
+#define USART_CTL1_LMEN BIT(14) /*!< LIN mode enable */
+#define USART_CTL1_STRP BIT(15) /*!< swap TX/RX pins */
+#define USART_CTL1_RINV BIT(16) /*!< RX pin level inversion */
+#define USART_CTL1_TINV BIT(17) /*!< TX pin level inversion */
+#define USART_CTL1_DINV BIT(18) /*!< data bit level inversion */
+#define USART_CTL1_MSBF BIT(19) /*!< most significant bit first */
+#define USART_CTL1_ABDEN BIT(20) /*!< auto baud rate enable */
+#define USART_CTL1_ABDM BITS(21,22) /*!< auto baud rate mode */
+#define USART_CTL1_RTEN BIT(23) /*!< receiver timeout enable */
+#define USART_CTL1_ADDR BITS(24,31) /*!< address of the USART terminal */
+
+/* USARTx_CTL2 */
+#define USART_CTL2_ERRIE BIT(0) /*!< error interrupt enable in multibuffer communication */
+#define USART_CTL2_IREN BIT(1) /*!< IrDA mode enable */
+#define USART_CTL2_IRLP BIT(2) /*!< IrDA low-power */
+#define USART_CTL2_HDEN BIT(3) /*!< half-duplex enable */
+#define USART_CTL2_NKEN BIT(4) /*!< NACK enable in smartcard mode */
+#define USART_CTL2_SCEN BIT(5) /*!< smartcard mode enable */
+#define USART_CTL2_DENR BIT(6) /*!< DMA enable for reception */
+#define USART_CTL2_DENT BIT(7) /*!< DMA enable for transmission */
+#define USART_CTL2_RTSEN BIT(8) /*!< RTS enable */
+#define USART_CTL2_CTSEN BIT(9) /*!< CTS enable */
+#define USART_CTL2_CTSIE BIT(10) /*!< CTS interrupt enable */
+#define USART_CTL2_OSB BIT(11) /*!< one sample bit mode */
+#define USART_CTL2_OVRD BIT(12) /*!< overrun disable */
+#define USART_CTL2_DDRE BIT(13) /*!< disable DMA on reception error */
+#define USART_CTL2_DEM BIT(14) /*!< driver enable mode */
+#define USART_CTL2_DEP BIT(15) /*!< driver enable polarity mode */
+#define USART_CTL2_SCRTNUM BITS(17,19) /*!< smartcard auto-retry number */
+#define USART_CTL2_WUM BITS(20,21) /*!< wakeup mode from deep-sleep mode */
+#define USART_CTL2_WUIE BIT(22) /*!< wakeup from deep-sleep mode interrupt enable */
+
+/* USARTx_BAUD */
+#define USART_BAUD_FRADIV BITS(0,3) /*!< fraction of baud-rate divider */
+#define USART_BAUD_INTDIV BITS(4,15) /*!< integer of baud-rate divider */
+
+/* USARTx_GP */
+#define USART_GP_PSC BITS(0,7) /*!< prescaler value for dividing the system clock */
+#define USART_GP_GUAT BITS(8,15) /*!< guard time value in smartcard mode */
+
+/* USARTx_RT */
+#define USART_RT_RT BITS(0,23) /*!< receiver timeout threshold */
+#define USART_RT_BL BITS(24,31) /*!< block length */
+
+/* USARTx_CMD */
+#define USART_CMD_ABDCMD BIT(0) /*!< auto baudrate detection command */
+#define USART_CMD_SBKCMD BIT(1) /*!< send break command */
+#define USART_CMD_MMCMD BIT(2) /*!< mute mode command */
+#define USART_CMD_RXFCMD BIT(3) /*!< receive data flush command */
+#define USART_CMD_TXFCMD BIT(4) /*!< transmit data flush request */
+
+/* USARTx_STAT */
+#define USART_STAT_PERR BIT(0) /*!< parity error flag */
+#define USART_STAT_FERR BIT(1) /*!< frame error flag */
+#define USART_STAT_NERR BIT(2) /*!< noise error flag */
+#define USART_STAT_ORERR BIT(3) /*!< overrun error */
+#define USART_STAT_IDLEF BIT(4) /*!< idle line detected flag */
+#define USART_STAT_RBNE BIT(5) /*!< read data buffer not empty */
+#define USART_STAT_TC BIT(6) /*!< transmission completed */
+#define USART_STAT_TBE BIT(7) /*!< transmit data register empty */
+#define USART_STAT_LBDF BIT(8) /*!< LIN break detected flag */
+#define USART_STAT_CTSF BIT(9) /*!< CTS change flag */
+#define USART_STAT_CTS BIT(10) /*!< CTS level */
+#define USART_STAT_RTF BIT(11) /*!< receiver timeout flag */
+#define USART_STAT_EBF BIT(12) /*!< end of block flag */
+#define USART_STAT_ABDE BIT(14) /*!< auto baudrate detection error */
+#define USART_STAT_ABDF BIT(15) /*!< auto baudrate detection flag */
+#define USART_STAT_BSY BIT(16) /*!< busy flag */
+#define USART_STAT_AMF BIT(17) /*!< address match flag */
+#define USART_STAT_SBF BIT(18) /*!< send break flag */
+#define USART_STAT_RWU BIT(19) /*!< receiver wakeup from mute mode */
+#define USART_STAT_WUF BIT(20) /*!< wakeup from deep-sleep mode flag */
+#define USART_STAT_TEA BIT(21) /*!< transmit enable acknowledge flag */
+#define USART_STAT_REA BIT(22) /*!< receive enable acknowledge flag */
+
+/* USARTx_INTC */
+#define USART_INTC_PEC BIT(0) /*!< parity error clear */
+#define USART_INTC_FEC BIT(1) /*!< frame error flag clear */
+#define USART_INTC_NEC BIT(2) /*!< noise detected clear */
+#define USART_INTC_OREC BIT(3) /*!< overrun error clear */
+#define USART_INTC_IDLEC BIT(4) /*!< idle line detected clear */
+#define USART_INTC_TCC BIT(6) /*!< transmission complete clear */
+#define USART_INTC_LBDC BIT(8) /*!< LIN break detected clear */
+#define USART_INTC_CTSC BIT(9) /*!< CTS change clear */
+#define USART_INTC_RTC BIT(11) /*!< receiver timeout clear */
+#define USART_INTC_EBC BIT(12) /*!< end of timeout clear */
+#define USART_INTC_AMC BIT(17) /*!< address match clear */
+#define USART_INTC_WUC BIT(20) /*!< wakeup from deep-sleep mode clear */
+
+/* USARTx_RDATA */
+#define USART_RDATA_RDATA BITS(0,8) /*!< receive data value */
+
+/* USARTx_TDATA */
+#define USART_TDATA_TDATA BITS(0,8) /*!< transmit data value */
+
+/* USARTx_CHC */
+#define USART_CHC_HCM BIT(0) /*!< hardware flow control coherence mode */
+#define USART_CHC_EPERR BIT(8) /*!< early parity error flag */
+
+/* USARTx_RFCS */
+#define USART_RFCS_ELNACK BIT(0) /*!< early NACK */
+#define USART_RFCS_RFEN BIT(8) /*!< receive FIFO enable */
+#define USART_RFCS_RFFIE BIT(9) /*!< receive FIFO full interrupt enable */
+#define USART_RFCS_RFE BIT(10) /*!< receive FIFO empty flag */
+#define USART_RFCS_RFF BIT(11) /*!< receive FIFO full flag */
+#define USART_RFCS_RFCNT BITS(12,14) /*!< receive FIFO counter number */
+#define USART_RFCS_RFFINT BIT(15) /*!< receive FIFO full interrupt flag */
+
+/* constants definitions */
+
+/* define the USART bit position and its register index offset */
+#define USART_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
+#define USART_REG_VAL(usartx, offset) (REG32((usartx) + (((uint32_t)(offset) & 0x0000FFFFU) >> 6)))
+#define USART_BIT_POS(val) ((uint32_t)(val) & 0x0000001FU)
+#define USART_REGIDX_BIT2(regidx, bitpos, regidx2, bitpos2) (((uint32_t)(regidx2) << 22) | (uint32_t)((bitpos2) << 16)\
+ | (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos)))
+#define USART_REG_VAL2(usartx, offset) (REG32((usartx) + ((uint32_t)(offset) >> 22)))
+#define USART_BIT_POS2(val) (((uint32_t)(val) & 0x001F0000U) >> 16)
+
+/* register offset */
+#define USART_CTL0_REG_OFFSET 0x00000000U /*!< CTL0 register offset */
+#define USART_CTL1_REG_OFFSET 0x00000004U /*!< CTL1 register offset */
+#define USART_CTL2_REG_OFFSET 0x00000008U /*!< CTL2 register offset */
+#define USART_STAT_REG_OFFSET 0x0000001CU /*!< STAT register offset */
+#define USART_CHC_REG_OFFSET 0x000000C0U /*!< CHC register offset */
+#define USART_RFCS_REG_OFFSET 0x000000D0U /*!< RFCS register offset */
+
+/* USART flags */
+typedef enum{
+ /* flags in STAT register */
+ USART_FLAG_REA = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 22U), /*!< receive enable acknowledge flag */
+ USART_FLAG_TEA = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 21U), /*!< transmit enable acknowledge flag */
+ USART_FLAG_WU = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 20U), /*!< wakeup from Deep-sleep mode flag */
+ USART_FLAG_RWU = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 19U), /*!< receiver wakeup from mute mode */
+ USART_FLAG_SB = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 18U), /*!< send break flag */
+ USART_FLAG_AM = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 17U), /*!< ADDR match flag */
+ USART_FLAG_BSY = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 16U), /*!< busy flag */
+ USART_FLAG_ABD = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 15U), /*!< auto baudrate detection flag */
+ USART_FLAG_ABDE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 14U), /*!< auto baudrate detection error */
+ USART_FLAG_EB = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 12U), /*!< end of block flag */
+ USART_FLAG_RT = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 11U), /*!< receiver timeout flag */
+ USART_FLAG_CTS = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 10U), /*!< CTS level */
+ USART_FLAG_CTSF = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 9U), /*!< CTS change flag */
+ USART_FLAG_LBD = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 8U), /*!< LIN break detected flag */
+ USART_FLAG_TBE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 7U), /*!< transmit data buffer empty */
+ USART_FLAG_TC = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 6U), /*!< transmission complete */
+ USART_FLAG_RBNE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 5U), /*!< read data buffer not empty */
+ USART_FLAG_IDLE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 4U), /*!< IDLE line detected flag */
+ USART_FLAG_ORERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 3U), /*!< overrun error */
+ USART_FLAG_NERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 2U), /*!< noise error flag */
+ USART_FLAG_FERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 1U), /*!< frame error flag */
+ USART_FLAG_PERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 0U), /*!< parity error flag */
+ /* flags in CHC register */
+ USART_FLAG_EPERR = USART_REGIDX_BIT(USART_CHC_REG_OFFSET, 8U), /*!< early parity error flag */
+ /* flags in RFCS register */
+ USART_FLAG_RFFINT = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 15U), /*!< receive FIFO full interrupt flag */
+ USART_FLAG_RFF = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 11U), /*!< receive FIFO full flag */
+ USART_FLAG_RFE = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 10U), /*!< receive FIFO empty flag */
+}usart_flag_enum;
+
+/* USART interrupt flags */
+typedef enum
+{
+ /* interrupt flags in CTL0 register */
+ USART_INT_FLAG_EB = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 27U, USART_STAT_REG_OFFSET, 12U), /*!< end of block interrupt and flag */
+ USART_INT_FLAG_RT = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 26U, USART_STAT_REG_OFFSET, 11U), /*!< receiver timeout interrupt and flag */
+ USART_INT_FLAG_AM = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 14U, USART_STAT_REG_OFFSET, 17U), /*!< address match interrupt and flag */
+ USART_INT_FLAG_PERR = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 8U, USART_STAT_REG_OFFSET, 0U), /*!< parity error interrupt and flag */
+ USART_INT_FLAG_TBE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 7U, USART_STAT_REG_OFFSET, 7U), /*!< transmitter buffer empty interrupt and flag */
+ USART_INT_FLAG_TC = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 6U, USART_STAT_REG_OFFSET, 6U), /*!< transmission complete interrupt and flag */
+ USART_INT_FLAG_RBNE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 5U, USART_STAT_REG_OFFSET, 5U), /*!< read data buffer not empty interrupt and flag */
+ USART_INT_FLAG_RBNE_ORERR = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 5U, USART_STAT_REG_OFFSET, 3U), /*!< read data buffer not empty interrupt and overrun error flag */
+ USART_INT_FLAG_IDLE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 4U, USART_STAT_REG_OFFSET, 4U), /*!< IDLE line detected interrupt and flag */
+ /* interrupt flags in CTL1 register */
+ USART_INT_FLAG_LBD = USART_REGIDX_BIT2(USART_CTL1_REG_OFFSET, 6U, USART_STAT_REG_OFFSET, 8U), /*!< LIN break detected interrupt and flag */
+ /* interrupt flags in CTL2 register */
+ USART_INT_FLAG_WU = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 22U, USART_STAT_REG_OFFSET, 20U), /*!< wakeup from deep-sleep mode interrupt and flag */
+ USART_INT_FLAG_CTS = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 10U, USART_STAT_REG_OFFSET, 9U), /*!< CTS interrupt and flag */
+ USART_INT_FLAG_ERR_NERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 2U), /*!< error interrupt and noise error flag */
+ USART_INT_FLAG_ERR_ORERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 3U), /*!< error interrupt and overrun error */
+ USART_INT_FLAG_ERR_FERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 1U), /*!< error interrupt and frame error flag */
+ /* interrupt flags in RFCS register */
+ USART_INT_FLAG_RFF = USART_REGIDX_BIT2(USART_RFCS_REG_OFFSET, 9U, USART_RFCS_REG_OFFSET, 15U), /*!< receive FIFO full interrupt and flag */
+}usart_interrupt_flag_enum;
+
+/* USART interrupt enable or disable */
+typedef enum
+{
+ /* interrupt in CTL0 register */
+ USART_INT_EB = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 27U), /*!< end of block interrupt */
+ USART_INT_RT = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 26U), /*!< receiver timeout interrupt */
+ USART_INT_AM = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 14U), /*!< address match interrupt */
+ USART_INT_PERR = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 8U), /*!< parity error interrupt */
+ USART_INT_TBE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 7U), /*!< transmitter buffer empty interrupt */
+ USART_INT_TC = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 6U), /*!< transmission complete interrupt */
+ USART_INT_RBNE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 5U), /*!< read data buffer not empty interrupt and overrun error interrupt */
+ USART_INT_IDLE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 4U), /*!< IDLE line detected interrupt */
+ /* interrupt in CTL1 register */
+ USART_INT_LBD = USART_REGIDX_BIT(USART_CTL1_REG_OFFSET, 6U), /*!< LIN break detected interrupt */
+ /* interrupt in CTL2 register */
+ USART_INT_WU = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 22U), /*!< wakeup from deep-sleep mode interrupt */
+ USART_INT_CTS = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 10U), /*!< CTS interrupt */
+ USART_INT_ERR = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 0U), /*!< error interrupt */
+ /* interrupt in RFCS register */
+ USART_INT_RFF = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 9U), /*!< receive FIFO full interrupt */
+}usart_interrupt_enum;
+
+/* USART invert configure */
+typedef enum {
+ /* data bit level inversion */
+ USART_DINV_ENABLE, /*!< data bit level inversion */
+ USART_DINV_DISABLE, /*!< data bit level not inversion */
+ /* TX pin level inversion */
+ USART_TXPIN_ENABLE, /*!< TX pin level inversion */
+ USART_TXPIN_DISABLE, /*!< TX pin level not inversion */
+ /* RX pin level inversion */
+ USART_RXPIN_ENABLE, /*!< RX pin level inversion */
+ USART_RXPIN_DISABLE, /*!< RX pin level not inversion */
+ /* swap TX/RX pins */
+ USART_SWAP_ENABLE, /*!< swap TX/RX pins */
+ USART_SWAP_DISABLE, /*!< not swap TX/RX pins */
+}usart_invert_enum;
+
+/* USART receiver configure */
+#define CTL0_REN(regval) (BIT(2) & ((uint32_t)(regval) << 2))
+#define USART_RECEIVE_ENABLE CTL0_REN(1) /*!< enable receiver */
+#define USART_RECEIVE_DISABLE CTL0_REN(0) /*!< disable receiver */
+
+/* USART transmitter configure */
+#define CTL0_TEN(regval) (BIT(3) & ((uint32_t)(regval) << 3))
+#define USART_TRANSMIT_ENABLE CTL0_TEN(1) /*!< enable transmitter */
+#define USART_TRANSMIT_DISABLE CTL0_TEN(0) /*!< disable transmitter */
+
+/* USART parity bits definitions */
+#define CTL0_PM(regval) (BITS(9,10) & ((uint32_t)(regval) << 9))
+#define USART_PM_NONE CTL0_PM(0) /*!< no parity */
+#define USART_PM_EVEN CTL0_PM(2) /*!< even parity */
+#define USART_PM_ODD CTL0_PM(3) /*!< odd parity */
+
+/* USART wakeup method in mute mode */
+#define CTL0_WM(regval) (BIT(11) & ((uint32_t)(regval) << 11))
+#define USART_WM_IDLE CTL0_WM(0) /*!< idle line */
+#define USART_WM_ADDR CTL0_WM(1) /*!< address match */
+
+/* USART word length definitions */
+#define CTL0_WL(regval) (BIT(12) & ((uint32_t)(regval) << 12))
+#define USART_WL_8BIT CTL0_WL(0) /*!< 8 bits */
+#define USART_WL_9BIT CTL0_WL(1) /*!< 9 bits */
+
+/* USART oversample mode */
+#define CTL0_OVSMOD(regval) (BIT(15) & ((uint32_t)(regval) << 15))
+#define USART_OVSMOD_8 CTL0_OVSMOD(1) /*!< oversampling by 8 */
+#define USART_OVSMOD_16 CTL0_OVSMOD(0) /*!< oversampling by 16 */
+
+/* USART address detection mode */
+#define CTL1_ADDM(regval) (BIT(4) & ((uint32_t)(regval) << 4))
+#define USART_ADDM_4BIT CTL1_ADDM(0) /*!< 4-bit address detection */
+#define USART_ADDM_FULLBIT CTL1_ADDM(1) /*!< full-bit address detection */
+
+/* USART LIN break frame length */
+#define CTL1_LBLEN(regval) (BIT(5) & ((uint32_t)(regval) << 5))
+#define USART_LBLEN_10B CTL1_LBLEN(0) /*!< 10 bits break detection */
+#define USART_LBLEN_11B CTL1_LBLEN(1) /*!< 11 bits break detection */
+
+/* USART last bit clock pulse */
+#define CTL1_CLEN(regval) (BIT(8) & ((uint32_t)(regval) << 8))
+#define USART_CLEN_NONE CTL1_CLEN(0) /*!< clock pulse of the last data bit (MSB) is not output to the CK pin */
+#define USART_CLEN_EN CTL1_CLEN(1) /*!< clock pulse of the last data bit (MSB) is output to the CK pin */
+
+/* USART clock phase */
+#define CTL1_CPH(regval) (BIT(9) & ((uint32_t)(regval) << 9))
+#define USART_CPH_1CK CTL1_CPH(0) /*!< first clock transition is the first data capture edge */
+#define USART_CPH_2CK CTL1_CPH(1) /*!< second clock transition is the first data capture edge */
+
+/* USART clock polarity */
+#define CTL1_CPL(regval) (BIT(10) & ((uint32_t)(regval) << 10))
+#define USART_CPL_LOW CTL1_CPL(0) /*!< steady low value on CK pin */
+#define USART_CPL_HIGH CTL1_CPL(1) /*!< steady high value on CK pin */
+
+/* USART stop bits definitions */
+#define CTL1_STB(regval) (BITS(12,13) & ((uint32_t)(regval) << 12))
+#define USART_STB_1BIT CTL1_STB(0) /*!< 1 bit */
+#define USART_STB_0_5BIT CTL1_STB(1) /*!< 0.5 bit */
+#define USART_STB_2BIT CTL1_STB(2) /*!< 2 bits */
+#define USART_STB_1_5BIT CTL1_STB(3) /*!< 1.5 bits */
+
+/* USART data is transmitted/received with the LSB/MSB first */
+#define CTL1_MSBF(regval) (BIT(19) & ((uint32_t)(regval) << 19))
+#define USART_MSBF_LSB CTL1_MSBF(0) /*!< LSB first */
+#define USART_MSBF_MSB CTL1_MSBF(1) /*!< MSB first */
+
+/* USART auto baud rate detection mode bits definitions */
+#define CTL1_ABDM(regval) (BITS(21,22) & ((uint32_t)(regval) << 21))
+#define USART_ABDM_FTOR CTL1_ABDM(0) /*!< falling edge to rising edge measurement */
+#define USART_ABDM_FTOF CTL1_ABDM(1) /*!< falling edge to falling edge measurement */
+
+/* USART IrDA low-power enable */
+#define CTL2_IRLP(regval) (BIT(2) & ((uint32_t)(regval) << 2))
+#define USART_IRLP_LOW CTL2_IRLP(1) /*!< low-power */
+#define USART_IRLP_NORMAL CTL2_IRLP(0) /*!< normal */
+
+/* DMA enable for reception */
+#define CTL2_DENR(regval) (BIT(6) & ((uint32_t)(regval) << 6))
+#define USART_DENR_ENABLE CTL2_DENR(1) /*!< enable for reception */
+#define USART_DENR_DISABLE CTL2_DENR(0) /*!< disable for reception */
+
+/* DMA enable for transmission */
+#define CTL2_DENT(regval) (BIT(7) & ((uint32_t)(regval) << 7))
+#define USART_DENT_ENABLE CTL2_DENT(1) /*!< enable for transmission */
+#define USART_DENT_DISABLE CTL2_DENT(0) /*!< disable for transmission */
+
+/* USART RTS hardware flow control configure */
+#define CTL2_RTSEN(regval) (BIT(8) & ((uint32_t)(regval) << 8))
+#define USART_RTS_ENABLE CTL2_RTSEN(1) /*!< RTS hardware flow control enabled */
+#define USART_RTS_DISABLE CTL2_RTSEN(0) /*!< RTS hardware flow control disabled */
+
+/* USART CTS hardware flow control configure */
+#define CTL2_CTSEN(regval) (BIT(9) & ((uint32_t)(regval) << 9))
+#define USART_CTS_ENABLE CTL2_CTSEN(1) /*!< CTS hardware flow control enabled */
+#define USART_CTS_DISABLE CTL2_CTSEN(0) /*!< CTS hardware flow control disabled */
+
+/* USART one sample bit method configure */
+#define CTL2_OSB(regval) (BIT(11) & ((uint32_t)(regval) << 11))
+#define USART_OSB_1BIT CTL2_OSB(1) /*!< 1 sample bit */
+#define USART_OSB_3BIT CTL2_OSB(0) /*!< 3 sample bits */
+
+/* USART driver enable polarity mode */
+#define CTL2_DEP(regval) (BIT(15) & ((uint32_t)(regval) << 15))
+#define USART_DEP_HIGH CTL2_DEP(0) /*!< DE signal is active high */
+#define USART_DEP_LOW CTL2_DEP(1) /*!< DE signal is active low */
+
+/* USART wakeup mode from deep-sleep mode */
+#define CTL2_WUM(regval) (BITS(20,21) & ((uint32_t)(regval) << 20))
+#define USART_WUM_ADDR CTL2_WUM(0) /*!< WUF active on address match */
+#define USART_WUM_STARTB CTL2_WUM(2) /*!< WUF active on start bit */
+#define USART_WUM_RBNE CTL2_WUM(3) /*!< WUF active on RBNE */
+
+/* USART hardware flow control coherence mode */
+#define CHC_HCM(regval) (BIT(0) & ((uint32_t)(regval) << 0))
+#define USART_HCM_NONE CHC_HCM(0) /*!< nRTS signal equals to the rxne status register */
+#define USART_HCM_EN CHC_HCM(1) /*!< nRTS signal is set when the last data bit has been sampled */
+
+/* function declarations */
+/* initialization functions */
+/* reset USART */
+void usart_deinit(uint32_t usart_periph);
+/* configure USART baud rate value */
+void usart_baudrate_set(uint32_t usart_periph, uint32_t baudval);
+/* configure USART parity function */
+void usart_parity_config(uint32_t usart_periph, uint32_t paritycfg);
+/* configure USART word length */
+void usart_word_length_set(uint32_t usart_periph, uint32_t wlen);
+/* configure USART stop bit length */
+void usart_stop_bit_set(uint32_t usart_periph, uint32_t stblen);
+/* enable USART */
+void usart_enable(uint32_t usart_periph);
+/* disable USART */
+void usart_disable(uint32_t usart_periph);
+/* configure USART transmitter */
+void usart_transmit_config(uint32_t usart_periph, uint32_t txconfig);
+/* configure USART receiver */
+void usart_receive_config(uint32_t usart_periph, uint32_t rxconfig);
+
+/* USART normal mode communication */
+/* data is transmitted/received with the LSB/MSB first */
+void usart_data_first_config(uint32_t usart_periph, uint32_t msbf);
+/* configure USART inverted */
+void usart_invert_config(uint32_t usart_periph, usart_invert_enum invertpara);
+/* enable the USART overrun function */
+void usart_overrun_enable(uint32_t usart_periph);
+/* disable the USART overrun function */
+void usart_overrun_disable(uint32_t usart_periph);
+/* configure the USART oversample mode */
+void usart_oversample_config(uint32_t usart_periph, uint32_t oversamp);
+/* configure sample bit method */
+void usart_sample_bit_config(uint32_t usart_periph, uint32_t osb);
+/* enable receiver timeout */
+void usart_receiver_timeout_enable(uint32_t usart_periph);
+/* disable receiver timeout */
+void usart_receiver_timeout_disable(uint32_t usart_periph);
+/* configure receiver timeout threshold */
+void usart_receiver_timeout_threshold_config(uint32_t usart_periph, uint32_t rtimeout);
+/* USART transmit data function */
+void usart_data_transmit(uint32_t usart_periph, uint32_t data);
+/* USART receive data function */
+uint16_t usart_data_receive(uint32_t usart_periph);
+
+/* auto baud rate detection */
+/* enable auto baud rate detection */
+void usart_autobaud_detection_enable(uint32_t usart_periph);
+/* disable auto baud rate detection */
+void usart_autobaud_detection_disable(uint32_t usart_periph);
+/* configure auto baud rate detection mode */
+void usart_autobaud_detection_mode_config(uint32_t usart_periph, uint32_t abdmod);
+
+/* multi-processor communication */
+/* configure address of the USART */
+void usart_address_config(uint32_t usart_periph, uint8_t addr);
+/* configure address detection mode */
+void usart_address_detection_mode_config(uint32_t usart_periph, uint32_t addmod);
+/* enable mute mode */
+void usart_mute_mode_enable(uint32_t usart_periph);
+/* disable mute mode */
+void usart_mute_mode_disable(uint32_t usart_periph);
+/* configure wakeup method in mute mode */
+void usart_mute_mode_wakeup_config(uint32_t usart_periph, uint32_t wmethod);
+
+/* LIN mode communication */
+/* enable LIN mode */
+void usart_lin_mode_enable(uint32_t usart_periph);
+/* disable LIN mode */
+void usart_lin_mode_disable(uint32_t usart_periph);
+/* LIN break detection length */
+void usart_lin_break_detection_length_config(uint32_t usart_periph, uint32_t lblen);
+
+/* half-duplex communication */
+/* enable half-duplex mode */
+void usart_halfduplex_enable(uint32_t usart_periph);
+/* disable half-duplex mode */
+void usart_halfduplex_disable(uint32_t usart_periph);
+
+/* synchronous communication */
+/* enable clock */
+void usart_clock_enable(uint32_t usart_periph);
+/* disable clock */
+void usart_clock_disable(uint32_t usart_periph);
+/* configure USART synchronous mode parameters */
+void usart_synchronous_clock_config(uint32_t usart_periph, uint32_t clen, uint32_t cph, uint32_t cpl);
+
+/* smartcard communication */
+/* configure guard time value in smartcard mode */
+void usart_guard_time_config(uint32_t usart_periph, uint32_t guat);
+/* enable smartcard mode */
+void usart_smartcard_mode_enable(uint32_t usart_periph);
+/* disable smartcard mode */
+void usart_smartcard_mode_disable(uint32_t usart_periph);
+/* enable NACK in smartcard mode */
+void usart_smartcard_mode_nack_enable(uint32_t usart_periph);
+/* disable NACK in smartcard mode */
+void usart_smartcard_mode_nack_disable(uint32_t usart_periph);
+/* enable early NACK in smartcard mode */
+void usart_smartcard_mode_early_nack_enable(uint32_t usart_periph);
+/* disable early NACK in smartcard mode */
+void usart_smartcard_mode_early_nack_disable(uint32_t usart_periph);
+/* configure smartcard auto-retry number */
+void usart_smartcard_autoretry_config(uint32_t usart_periph, uint32_t scrtnum);
+/* configure block length */
+void usart_block_length_config(uint32_t usart_periph, uint32_t bl);
+
+/* IrDA communication */
+/* enable IrDA mode */
+void usart_irda_mode_enable(uint32_t usart_periph);
+/* disable IrDA mode */
+void usart_irda_mode_disable(uint32_t usart_periph);
+/* configure the peripheral clock prescaler */
+void usart_prescaler_config(uint32_t usart_periph, uint32_t psc);
+/* configure IrDA low-power */
+void usart_irda_lowpower_config(uint32_t usart_periph, uint32_t irlp);
+
+/* hardware flow communication */
+/* configure hardware flow control RTS */
+void usart_hardware_flow_rts_config(uint32_t usart_periph, uint32_t rtsconfig);
+/* configure hardware flow control CTS */
+void usart_hardware_flow_cts_config(uint32_t usart_periph, uint32_t ctsconfig);
+
+/* coherence control */
+/* configure hardware flow control coherence mode */
+void usart_hardware_flow_coherence_config(uint32_t usart_periph, uint32_t hcm);
+
+/* enable RS485 driver */
+void usart_rs485_driver_enable(uint32_t usart_periph);
+/* disable RS485 driver */
+void usart_rs485_driver_disable(uint32_t usart_periph);
+/* configure driver enable assertion time */
+void usart_driver_assertime_config(uint32_t usart_periph, uint32_t deatime);
+/* configure driver enable de-assertion time */
+void usart_driver_deassertime_config(uint32_t usart_periph, uint32_t dedtime);
+/* configure driver enable polarity mode */
+void usart_depolarity_config(uint32_t usart_periph, uint32_t dep);
+
+/* USART DMA */
+/* configure USART DMA for reception */
+void usart_dma_receive_config(uint32_t usart_periph, uint32_t dmacmd);
+/* configure USART DMA for transmission */
+void usart_dma_transmit_config(uint32_t usart_periph, uint32_t dmacmd);
+/* disable DMA on reception error */
+void usart_reception_error_dma_disable(uint32_t usart_periph);
+/* enable DMA on reception error */
+void usart_reception_error_dma_enable(uint32_t usart_periph);
+
+/* enable USART to wakeup the mcu from deep-sleep mode */
+void usart_wakeup_enable(uint32_t usart_periph);
+/* disable USART to wakeup the mcu from deep-sleep mode */
+void usart_wakeup_disable(uint32_t usart_periph);
+/* configure the USART wakeup mode from deep-sleep mode */
+void usart_wakeup_mode_config(uint32_t usart_periph, uint32_t wum);
+
+/* USART receive FIFO */
+/* enable receive FIFO */
+void usart_receive_fifo_enable(uint32_t usart_periph);
+/* disable receive FIFO */
+void usart_receive_fifo_disable(uint32_t usart_periph);
+/* read receive FIFO counter number */
+uint8_t usart_receive_fifo_counter_number(uint32_t usart_periph);
+
+/* flag & interrupt functions */
+/* get flag in STAT/RFCS register */
+FlagStatus usart_flag_get(uint32_t usart_periph, usart_flag_enum flag);
+/* clear USART status */
+void usart_flag_clear(uint32_t usart_periph, usart_flag_enum flag);
+/* enable USART interrupt */
+void usart_interrupt_enable(uint32_t usart_periph, usart_interrupt_enum inttype);
+/* disable USART interrupt */
+void usart_interrupt_disable(uint32_t usart_periph, usart_interrupt_enum inttype);
+/* enable USART command */
+void usart_command_enable(uint32_t usart_periph, uint32_t cmdtype);
+/* get USART interrupt and flag status */
+FlagStatus usart_interrupt_flag_get(uint32_t usart_periph, usart_interrupt_flag_enum int_flag);
+/* clear USART interrupt flag */
+void usart_interrupt_flag_clear(uint32_t usart_periph, usart_interrupt_flag_enum flag);
+
+#endif /* GD32E230_USART_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_wwdgt.h b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_wwdgt.h
new file mode 100644
index 0000000000..38445b36de
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Include/gd32e230_wwdgt.h
@@ -0,0 +1,88 @@
+/*!
+ \file gd32e230_wwdgt.h
+ \brief definitions for the WWDGT
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_WWDGT_H
+#define GD32E230_WWDGT_H
+
+#include "gd32e230.h"
+
+/* WWDGT definitions */
+#define WWDGT WWDGT_BASE
+
+/* registers definitions */
+#define WWDGT_CTL REG32((WWDGT) + 0x00000000U) /*!< WWDGT control register */
+#define WWDGT_CFG REG32((WWDGT) + 0x00000004U) /*!< WWDGT configuration register */
+#define WWDGT_STAT REG32((WWDGT) + 0x00000008U) /*!< WWDGT status register */
+
+/* bits definitions */
+/* WWDGT_CTL */
+#define WWDGT_CTL_CNT BITS(0,6) /*!< WWDGT counter value */
+#define WWDGT_CTL_WDGTEN BIT(7) /*!< WWDGT counter enable */
+
+/* WWDGT_CFG */
+#define WWDGT_CFG_WIN BITS(0,6) /*!< WWDGT counter window value */
+#define WWDGT_CFG_PSC BITS(7,8) /*!< WWDGT prescaler divider value */
+#define WWDGT_CFG_EWIE BIT(9) /*!< WWDGT early wakeup interrupt enable */
+
+/* WWDGT_STAT */
+#define WWDGT_STAT_EWIF BIT(0) /*!< WWDGT early wakeup interrupt flag */
+
+/* constants definitions */
+#define CFG_PSC(regval) (BITS(7,8) & ((uint32_t)(regval) << 7U)) /*!< write value to WWDGT_CFG_PSC bit field */
+#define WWDGT_CFG_PSC_DIV1 ((uint32_t)CFG_PSC(0)) /*!< the time base of WWDGT = (PCLK1/4096)/1 */
+#define WWDGT_CFG_PSC_DIV2 ((uint32_t)CFG_PSC(1)) /*!< the time base of WWDGT = (PCLK1/4096)/2 */
+#define WWDGT_CFG_PSC_DIV4 ((uint32_t)CFG_PSC(2)) /*!< the time base of WWDGT = (PCLK1/4096)/4 */
+#define WWDGT_CFG_PSC_DIV8 ((uint32_t)CFG_PSC(3)) /*!< the time base of WWDGT = (PCLK1/4096)/8 */
+
+/* function declarations */
+/* reset the window watchdog timer configuration */
+void wwdgt_deinit(void);
+/* start the window watchdog timer counter */
+void wwdgt_enable(void);
+
+/* configure the window watchdog timer counter value */
+void wwdgt_counter_update(uint16_t counter_value);
+/* configure counter value, window value, and prescaler divider value */
+void wwdgt_config(uint16_t counter, uint16_t window, uint32_t prescaler);
+
+/* enable early wakeup interrupt of WWDGT */
+void wwdgt_interrupt_enable(void);
+/* check early wakeup interrupt state of WWDGT */
+FlagStatus wwdgt_flag_get(void);
+/* clear early wakeup interrupt state of WWDGT */
+void wwdgt_flag_clear(void);
+
+#endif /* GD32E230_WWDGT_H */
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_adc.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_adc.c
new file mode 100644
index 0000000000..d0f7065336
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_adc.c
@@ -0,0 +1,844 @@
+/*!
+ \file gd32e230_adc.c
+ \brief ADC driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_adc.h"
+
+/*!
+ \brief reset ADC
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_deinit(void)
+{
+ rcu_periph_reset_enable(RCU_ADCRST);
+ rcu_periph_reset_disable(RCU_ADCRST);
+}
+
+/*!
+ \brief enable ADC interface
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_enable(void)
+{
+ if(RESET == (ADC_CTL1 & ADC_CTL1_ADCON)){
+ ADC_CTL1 |= (uint32_t)ADC_CTL1_ADCON;
+ }
+}
+
+/*!
+ \brief disable ADC interface
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_disable(void)
+{
+ ADC_CTL1 &= ~((uint32_t)ADC_CTL1_ADCON);
+}
+
+/*!
+ \brief ADC calibration and reset calibration
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_calibration_enable(void)
+{
+ /* reset the selected ADC calibration register */
+ ADC_CTL1 |= (uint32_t) ADC_CTL1_RSTCLB;
+ /* check the RSTCLB bit state */
+ while((ADC_CTL1 & ADC_CTL1_RSTCLB)){
+ }
+
+ /* enable ADC calibration process */
+ ADC_CTL1 |= ADC_CTL1_CLB;
+ /* check the CLB bit state */
+ while((ADC_CTL1 & ADC_CTL1_CLB)){
+ }
+}
+
+/*!
+ \brief enable DMA request
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_dma_mode_enable(void)
+{
+ ADC_CTL1 |= (uint32_t)(ADC_CTL1_DMA);
+}
+
+/*!
+ \brief disable DMA request
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_dma_mode_disable(void)
+{
+ ADC_CTL1 &= ~((uint32_t)ADC_CTL1_DMA);
+}
+
+/*!
+ \brief enable the temperature sensor and Vrefint channel
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_tempsensor_vrefint_enable(void)
+{
+ /* enable the temperature sensor and Vrefint channel */
+ ADC_CTL1 |= ADC_CTL1_TSVREN;
+}
+
+/*!
+ \brief disable the temperature sensor and Vrefint channel
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_tempsensor_vrefint_disable(void)
+{
+ /* disable the temperature sensor and Vrefint channel */
+ ADC_CTL1 &= ~ADC_CTL1_TSVREN;
+}
+
+/*!
+ \brief configure ADC discontinuous mode
+ \param[in] channel_group: select the channel group
+ only one parameter can be selected which is shown as below:
+ \arg ADC_REGULAR_CHANNEL: regular channel group
+ \arg ADC_INSERTED_CHANNEL: inserted channel group
+ \arg ADC_CHANNEL_DISCON_DISABLE: disable discontinuous mode of regular and inserted channel
+ \param[in] length: number of conversions in discontinuous mode, the number can be 1..8
+ for regular channel, the number has no effect for inserted channel
+ \param[out] none
+ \retval none
+*/
+void adc_discontinuous_mode_config(uint8_t channel_group, uint8_t length)
+{
+ ADC_CTL0 &= ~((uint32_t)(ADC_CTL0_DISRC | ADC_CTL0_DISIC));
+
+ switch(channel_group){
+ case ADC_REGULAR_CHANNEL:
+ /* configure the number of conversions in discontinuous mode */
+ ADC_CTL0 &= ~((uint32_t)ADC_CTL0_DISNUM);
+ ADC_CTL0 |= CTL0_DISNUM(((uint32_t)length - 1U));
+ ADC_CTL0 |= (uint32_t)ADC_CTL0_DISRC;
+ break;
+ case ADC_INSERTED_CHANNEL:
+ ADC_CTL0 |= (uint32_t)ADC_CTL0_DISIC;
+ break;
+ case ADC_CHANNEL_DISCON_DISABLE:
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure ADC special function
+ \param[in] function: the function to configure
+ one or more parameters can be selected which is shown as below:
+ \arg ADC_SCAN_MODE: scan mode select
+ \arg ADC_INSERTED_CHANNEL_AUTO: inserted channel group convert automatically
+ \arg ADC_CONTINUOUS_MODE: continuous mode select
+ \param[in] newvalue: ENABLE or DISABLE
+ \param[out] none
+ \retval none
+*/
+void adc_special_function_config(uint32_t function, ControlStatus newvalue)
+{
+ if(newvalue){
+ /* enable ADC scan mode */
+ if(RESET != (function & ADC_SCAN_MODE)){
+ ADC_CTL0 |= ADC_SCAN_MODE;
+ }
+ /* enable ADC inserted channel group convert automatically */
+ if(RESET != (function & ADC_INSERTED_CHANNEL_AUTO)){
+ ADC_CTL0 |= ADC_INSERTED_CHANNEL_AUTO;
+ }
+ /* enable ADC continuous mode */
+ if(RESET != (function & ADC_CONTINUOUS_MODE)){
+ ADC_CTL1 |= ADC_CONTINUOUS_MODE;
+ }
+ }else{
+ /* disable ADC scan mode */
+ if(RESET != (function & ADC_SCAN_MODE)){
+ ADC_CTL0 &= ~ADC_SCAN_MODE;
+ }
+ /* disable ADC inserted channel group convert automatically */
+ if(RESET != (function & ADC_INSERTED_CHANNEL_AUTO)){
+ ADC_CTL0 &= ~ADC_INSERTED_CHANNEL_AUTO;
+ }
+ /* disable ADC continuous mode */
+ if(RESET != (function & ADC_CONTINUOUS_MODE)){
+ ADC_CTL1 &= ~ADC_CONTINUOUS_MODE;
+ }
+ }
+}
+
+/*!
+ \brief configure ADC data alignment
+ \param[in] data_alignment: data alignment select
+ only one parameter can be selected which is shown as below:
+ \arg ADC_DATAALIGN_RIGHT: right alignment
+ \arg ADC_DATAALIGN_LEFT: left alignment
+ \param[out] none
+ \retval none
+*/
+void adc_data_alignment_config(uint32_t data_alignment)
+{
+ if(ADC_DATAALIGN_RIGHT != data_alignment){
+ ADC_CTL1 |= ADC_CTL1_DAL;
+ }else{
+ ADC_CTL1 &= ~((uint32_t)ADC_CTL1_DAL);
+ }
+}
+
+/*!
+ \brief configure the length of regular channel group or inserted channel group
+ \param[in] channel_group: select the channel group
+ only one parameter can be selected which is shown as below:
+ \arg ADC_REGULAR_CHANNEL: regular channel group
+ \arg ADC_INSERTED_CHANNEL: inserted channel group
+ \param[in] length: the length of the channel
+ regular channel 1-16
+ inserted channel 1-4
+ \param[out] none
+ \retval none
+*/
+void adc_channel_length_config(uint8_t channel_group, uint32_t length)
+{
+ switch(channel_group){
+ case ADC_REGULAR_CHANNEL:
+ /* configure the length of regular channel group */
+ ADC_RSQ0 &= ~((uint32_t)ADC_RSQ0_RL);
+ ADC_RSQ0 |= RSQ0_RL((uint32_t)(length-1U));
+ break;
+ case ADC_INSERTED_CHANNEL:
+ /* configure the length of inserted channel group */
+ ADC_ISQ &= ~((uint32_t)ADC_ISQ_IL);
+ ADC_ISQ |= ISQ_IL((uint32_t)(length-1U));
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure ADC regular channel
+ \param[in] rank: the regular group sequence rank, this parameter must be between 0 to 15
+ \param[in] channel: the selected ADC channel
+ only one parameter can be selected which is shown as below:
+ \arg ADC_CHANNEL_x(x=0..9,16,17): ADC Channelx
+ \param[in] sample_time: the sample time value
+ only one parameter can be selected which is shown as below:
+ \arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
+ \arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
+ \arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
+ \arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
+ \arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
+ \arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
+ \arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
+ \arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
+ \param[out] none
+ \retval none
+*/
+void adc_regular_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time)
+{
+ uint32_t rsq,sampt;
+
+ /* configure ADC regular sequence */
+ if(rank < 6U){
+ rsq = ADC_RSQ2;
+ rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*rank)));
+ rsq |= ((uint32_t)channel << (5U*rank));
+ ADC_RSQ2 = rsq;
+ }else if(rank < 12U){
+ rsq = ADC_RSQ1;
+ rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*(rank-6U))));
+ rsq |= ((uint32_t)channel << (5U*(rank-6U)));
+ ADC_RSQ1 = rsq;
+ }else if(rank < 16U){
+ rsq = ADC_RSQ0;
+ rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*(rank-12U))));
+ rsq |= ((uint32_t)channel << (5U*(rank-12U)));
+ ADC_RSQ0 = rsq;
+ }else{
+ }
+
+ /* configure ADC sampling time */
+ if(channel < 10U){
+ sampt = ADC_SAMPT1;
+ sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*channel)));
+ sampt |= (uint32_t)(sample_time << (3U*channel));
+ ADC_SAMPT1 = sampt;
+ }else if(channel < 19U){
+ sampt = ADC_SAMPT0;
+ sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*(channel-10U))));
+ sampt |= (uint32_t)(sample_time << (3U*(channel-10U)));
+ ADC_SAMPT0 = sampt;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief configure ADC inserted channel
+ \param[in] rank: the inserted group sequencer rank,this parameter must be between 0 to 3
+ \param[in] channel: the selected ADC channel
+ only one parameter can be selected which is shown as below:
+ \arg ADC_CHANNEL_x(x=0..9,16,17): ADC Channelx
+ \param[in] sample_time: The sample time value
+ only one parameter can be selected which is shown as below:
+ \arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
+ \arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
+ \arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
+ \arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
+ \arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
+ \arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
+ \arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
+ \arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
+ \param[out] none
+ \retval none
+*/
+void adc_inserted_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time)
+{
+ uint8_t inserted_length;
+ uint32_t isq,sampt;
+
+ inserted_length = (uint8_t)GET_BITS(ADC_ISQ , 20U , 21U);
+
+ isq = ADC_ISQ;
+ isq &= ~((uint32_t)(ADC_ISQ_ISQN << (15U - (inserted_length - rank)*5U)));
+ isq |= ((uint32_t)channel << (15U - (inserted_length - rank)*5U));
+ ADC_ISQ = isq;
+
+ /* configure ADC sampling time */
+ if(channel < 10U){
+ sampt = ADC_SAMPT1;
+ sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*channel)));
+ sampt |= (uint32_t) sample_time << (3U*channel);
+ ADC_SAMPT1 = sampt;
+ }else if(channel < 19U){
+ sampt = ADC_SAMPT0;
+ sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*(channel - 10U))));
+ sampt |= ((uint32_t)sample_time << (3U*(channel - 10U)));
+ ADC_SAMPT0 = sampt;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief configure ADC inserted channel offset
+ \param[in] inserted_channel: insert channel select
+ only one parameter can be selected which is shown as below:
+ \arg ADC_INSERTED_CHANNEL_0: ADC inserted channel 0
+ \arg ADC_INSERTED_CHANNEL_1: ADC inserted channel 1
+ \arg ADC_INSERTED_CHANNEL_2: ADC inserted channel 2
+ \arg ADC_INSERTED_CHANNEL_3: ADC inserted channel 3
+ \param[in] offset: the offset data
+ \param[out] none
+ \retval none
+*/
+void adc_inserted_channel_offset_config(uint8_t inserted_channel, uint16_t offset)
+{
+ uint8_t inserted_length;
+ uint32_t num = 0U;
+
+ inserted_length = (uint8_t)GET_BITS(ADC_ISQ, 20U, 21U);
+ num = 3U - (inserted_length - inserted_channel);
+
+ if(num <= 3U){
+ /* calculate the offset of the register */
+ num = num * 4U;
+ /* configure the offset of the selected channels */
+ REG32((ADC) + 0x14U + num) = IOFFX_IOFF((uint32_t)offset);
+ }
+}
+
+/*!
+ \brief enable or disable ADC external trigger
+ \param[in] channel_group: select the channel group
+ one or more parameters can be selected which is shown as below:
+ \arg ADC_REGULAR_CHANNEL: regular channel group
+ \arg ADC_INSERTED_CHANNEL: inserted channel group
+ \param[in] newvalue: ENABLE or DISABLE
+ \param[out] none
+ \retval none
+*/
+void adc_external_trigger_config(uint8_t channel_group, ControlStatus newvalue)
+{
+ if(newvalue){
+ /* external trigger enable for regular channel */
+ if(RESET != (channel_group & ADC_REGULAR_CHANNEL)){
+ ADC_CTL1 |= ADC_CTL1_ETERC;
+ }
+ /* external trigger enable for inserted channel */
+ if(RESET != (channel_group & ADC_INSERTED_CHANNEL)){
+ ADC_CTL1 |= ADC_CTL1_ETEIC;
+ }
+ }else{
+ /* external trigger disable for regular channel */
+ if(RESET != (channel_group & ADC_REGULAR_CHANNEL)){
+ ADC_CTL1 &= ~ADC_CTL1_ETERC;
+ }
+ /* external trigger disable for inserted channel */
+ if(RESET != (channel_group & ADC_INSERTED_CHANNEL)){
+ ADC_CTL1 &= ~ADC_CTL1_ETEIC;
+ }
+ }
+}
+
+/*!
+ \brief configure ADC external trigger source
+ \param[in] channel_group: select the channel group
+ only one parameter can be selected which is shown as below:
+ \arg ADC_REGULAR_CHANNEL: regular channel group
+ \arg ADC_INSERTED_CHANNEL: inserted channel group
+ \param[in] external_trigger_source: regular or inserted group trigger source
+ only one parameter can be selected which is shown as below:
+ for regular channel:
+ \arg ADC_EXTTRIG_REGULAR_T0_CH0: TIMER0 CH0 event select
+ \arg ADC_EXTTRIG_REGULAR_T0_CH1: TIMER0 CH1 event select
+ \arg ADC_EXTTRIG_REGULAR_T0_CH2: TIMER0 CH2 event select
+ \arg ADC_EXTTRIG_REGULAR_T2_TRGO: TIMER2 TRGO event select
+ \arg ADC_EXTTRIG_REGULAR_T14_CH0: TIMER14 CH0 event select
+ \arg ADC_EXTTRIG_REGULAR_EXTI_11: external interrupt line 11
+ \arg ADC_EXTTRIG_REGULAR_NONE: software trigger
+ for inserted channel:
+ \arg ADC_EXTTRIG_INSERTED_T0_TRGO: TIMER0 TRGO event select
+ \arg ADC_EXTTRIG_INSERTED_T0_CH3: TIMER0 CH3 event select
+ \arg ADC_EXTTRIG_INSERTED_T2_CH3: TIMER2 CH3 event select
+ \arg ADC_EXTTRIG_INSERTED_T14_TRGO: TIMER14 TRGO event select
+ \arg ADC_EXTTRIG_INSERTED_EXTI_15: external interrupt line 15
+ \arg ADC_EXTTRIG_INSERTED_NONE: software trigger
+ \param[out] none
+ \retval none
+*/
+void adc_external_trigger_source_config(uint8_t channel_group, uint32_t external_trigger_source)
+{
+ switch(channel_group){
+ case ADC_REGULAR_CHANNEL:
+ /* external trigger select for regular channel */
+ ADC_CTL1 &= ~((uint32_t)ADC_CTL1_ETSRC);
+ ADC_CTL1 |= (uint32_t)external_trigger_source;
+ break;
+ case ADC_INSERTED_CHANNEL:
+ /* external trigger select for inserted channel */
+ ADC_CTL1 &= ~((uint32_t)ADC_CTL1_ETSIC);
+ ADC_CTL1 |= (uint32_t)external_trigger_source;
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief enable ADC software trigger
+ \param[in] channel_group: select the channel group
+ one or more parameters can be selected which is shown as below:
+ \arg ADC_REGULAR_CHANNEL: regular channel group
+ \arg ADC_INSERTED_CHANNEL: inserted channel group
+ \param[out] none
+ \retval none
+*/
+void adc_software_trigger_enable(uint8_t channel_group)
+{
+ /* enable regular group channel software trigger */
+ if(RESET != (channel_group & ADC_REGULAR_CHANNEL)){
+ ADC_CTL1 |= ADC_CTL1_SWRCST;
+ }
+ /* enable inserted channel group software trigger */
+ if(RESET != (channel_group & ADC_INSERTED_CHANNEL)){
+ ADC_CTL1 |= ADC_CTL1_SWICST;
+ }
+}
+
+/*!
+ \brief read ADC regular group data register
+ \param[in] none
+ \param[out] none
+ \retval the conversion value
+*/
+uint16_t adc_regular_data_read(void)
+{
+ return ((uint16_t)ADC_RDATA);
+}
+
+/*!
+ \brief read ADC inserted group data register
+ \param[in] inserted_channel: inserted channel select
+ only one parameter can be selected which is shown as below:
+ \arg ADC_INSERTED_CHANNEL_0: ADC inserted channel 0
+ \arg ADC_INSERTED_CHANNEL_1: ADC inserted channel 1
+ \arg ADC_INSERTED_CHANNEL_2: ADC inserted channel 2
+ \arg ADC_INSERTED_CHANNEL_3: ADC inserted channel 3
+ \param[out] none
+ \retval the conversion value
+*/
+uint16_t adc_inserted_data_read(uint8_t inserted_channel)
+{
+ uint32_t idata;
+ /* read the data of the selected channel */
+ switch(inserted_channel){
+ case ADC_INSERTED_CHANNEL_0:
+ idata = ADC_IDATA0;
+ break;
+ case ADC_INSERTED_CHANNEL_1:
+ idata = ADC_IDATA1;
+ break;
+ case ADC_INSERTED_CHANNEL_2:
+ idata = ADC_IDATA2;
+ break;
+ case ADC_INSERTED_CHANNEL_3:
+ idata = ADC_IDATA3;
+ break;
+ default:
+ idata = 0U;
+ break;
+ }
+ return (uint16_t)idata;
+}
+
+/*!
+ \brief get the ADC flag bits
+ \param[in] flag: the adc flag bits
+ only one parameter can be selected which is shown as below:
+ \arg ADC_FLAG_WDE: analog watchdog event flag
+ \arg ADC_FLAG_EOC: end of group conversion flag
+ \arg ADC_FLAG_EOIC: end of inserted group conversion flag
+ \arg ADC_FLAG_STIC: start flag of inserted channel group
+ \arg ADC_FLAG_STRC: start flag of regular channel group
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus adc_flag_get(uint32_t flag)
+{
+ FlagStatus reval = RESET;
+
+ if(ADC_STAT & flag){
+ reval = SET;
+ }
+ return reval;
+}
+
+/*!
+ \brief clear the ADC flag
+ \param[in] flag: the adc flag
+ one or more parameters can be selected which is shown as below:
+ \arg ADC_FLAG_WDE: analog watchdog event flag
+ \arg ADC_FLAG_EOC: end of group conversion flag
+ \arg ADC_FLAG_EOIC: end of inserted group conversion flag
+ \arg ADC_FLAG_STIC: start flag of inserted channel group
+ \arg ADC_FLAG_STRC: start flag of regular channel group
+ \param[out] none
+ \retval none
+*/
+void adc_flag_clear(uint32_t flag)
+{
+ ADC_STAT &= ~((uint32_t)flag);
+}
+
+/*!
+ \brief get the ADC interrupt flag
+ \param[in] flag: the adc interrupt flag
+ only one parameter can be selected which is shown as below:
+ \arg ADC_INT_FLAG_WDE: analog watchdog interrupt flag
+ \arg ADC_INT_FLAG_EOC: end of group conversion interrupt flag
+ \arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus adc_interrupt_flag_get(uint32_t flag)
+{
+ FlagStatus interrupt_flag = RESET;
+ uint32_t state;
+
+ /* check the interrupt bits */
+ switch(flag){
+ case ADC_INT_FLAG_WDE:
+ state = ADC_STAT & ADC_STAT_WDE;
+ if((ADC_CTL0 & ADC_CTL0_WDEIE) && state){
+ interrupt_flag = SET;
+ }
+ break;
+ case ADC_INT_FLAG_EOC:
+ state = ADC_STAT & ADC_STAT_EOC;
+ if((ADC_CTL0 & ADC_CTL0_EOCIE) && state){
+ interrupt_flag = SET;
+ }
+ break;
+ case ADC_INT_FLAG_EOIC:
+ state = ADC_STAT & ADC_STAT_EOIC;
+ if((ADC_CTL0 & ADC_CTL0_EOICIE) && state){
+ interrupt_flag = SET;
+ }
+ break;
+ default:
+ break;
+ }
+ return interrupt_flag;
+}
+
+/*!
+ \brief clear ADC interrupt flag
+ \param[in] flag: the adc interrupt flag
+ only one parameter can be selected which is shown as below:
+ \arg ADC_INT_FLAG_WDE: analog watchdog interrupt flag
+ \arg ADC_INT_FLAG_EOC: end of group conversion interrupt flag
+ \arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt flag
+ \param[out] none
+ \retval none
+*/
+void adc_interrupt_flag_clear(uint32_t flag)
+{
+ ADC_STAT &= ~((uint32_t)flag);
+}
+
+/*!
+ \brief enable ADC interrupt
+ \param[in] interrupt: the adc interrupt
+ one or more parameters can be selected which is shown as below:
+ \arg ADC_INT_WDE: analog watchdog interrupt
+ \arg ADC_INT_EOC: end of group conversion interrupt
+ \arg ADC_INT_EOIC: end of inserted group conversion interrupt
+ \param[out] none
+ \retval none
+*/
+void adc_interrupt_enable(uint32_t interrupt)
+{
+ /* enable analog watchdog interrupt */
+ if(RESET != (interrupt & ADC_INT_WDE)){
+ ADC_CTL0 |= (uint32_t)ADC_CTL0_WDEIE;
+ }
+
+ /* enable end of group conversion interrupt */
+ if(RESET != (interrupt & ADC_INT_EOC)){
+ ADC_CTL0 |= (uint32_t)ADC_CTL0_EOCIE;
+ }
+
+ /* enable end of inserted group conversion interrupt */
+ if(RESET != (interrupt & ADC_INT_EOIC)){
+ ADC_CTL0 |= (uint32_t)ADC_CTL0_EOICIE;
+ }
+}
+
+/*!
+ \brief disable ADC interrupt
+ \param[in] interrupt: the adc interrupt flag
+ one or more parameters can be selected which is shown as below:
+ \arg ADC_INT_WDE: analog watchdog interrupt
+ \arg ADC_INT_EOC: end of group conversion interrupt
+ \arg ADC_INT_EOIC: end of inserted group conversion interrupt
+ \param[out] none
+ \retval none
+*/
+void adc_interrupt_disable(uint32_t interrupt)
+{
+ /* disable analog watchdog interrupt */
+ if(RESET != (interrupt & ADC_INT_WDE)){
+ ADC_CTL0 &= ~(uint32_t)ADC_CTL0_WDEIE;
+ }
+
+ /* disable end of group conversion interrupt */
+ if(RESET != (interrupt & ADC_INT_EOC)){
+ ADC_CTL0 &= ~(uint32_t)ADC_CTL0_EOCIE;
+ }
+
+ /* disable end of inserted group conversion interrupt */
+ if(RESET != (interrupt & ADC_INT_EOIC)){
+ ADC_CTL0 &= ~(uint32_t)ADC_CTL0_EOICIE;
+ }
+}
+
+/*!
+ \brief configure ADC analog watchdog single channel
+ \param[in] channel: the selected ADC channel
+ only one parameter can be selected which is shown as below:
+ \arg ADC_CHANNEL_x(x=0..9,16,17): ADC Channelx
+ \param[out] none
+ \retval none
+*/
+void adc_watchdog_single_channel_enable(uint8_t channel)
+{
+ ADC_CTL0 &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
+
+ ADC_CTL0 |= (uint32_t)channel;
+ ADC_CTL0 |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
+}
+
+/*!
+ \brief configure ADC analog watchdog group channel
+ \param[in] channel_group: the channel group use analog watchdog
+ only one parameter can be selected which is shown as below:
+ \arg ADC_REGULAR_CHANNEL: regular channel group
+ \arg ADC_INSERTED_CHANNEL: inserted channel group
+ \arg ADC_REGULAR_INSERTED_CHANNEL: both regular and inserted group
+ \param[out] none
+ \retval none
+*/
+void adc_watchdog_group_channel_enable(uint8_t channel_group)
+{
+ ADC_CTL0 &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
+
+ /* select the group */
+ switch(channel_group){
+ case ADC_REGULAR_CHANNEL:
+ ADC_CTL0 |= (uint32_t)ADC_CTL0_RWDEN;
+ break;
+ case ADC_INSERTED_CHANNEL:
+ ADC_CTL0 |= (uint32_t)ADC_CTL0_IWDEN;
+ break;
+ case ADC_REGULAR_INSERTED_CHANNEL:
+ ADC_CTL0 |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief disable ADC analog watchdog
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_watchdog_disable(void)
+{
+ ADC_CTL0 &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
+}
+
+/*!
+ \brief configure ADC analog watchdog threshold
+ \param[in] low_threshold: analog watchdog low threshold,0..4095
+ \param[in] high_threshold: analog watchdog high threshold,0..4095
+ \param[out] none
+ \retval none
+*/
+void adc_watchdog_threshold_config(uint16_t low_threshold, uint16_t high_threshold)
+{
+ ADC_WDLT = (uint32_t)WDLT_WDLT(low_threshold);
+ ADC_WDHT = (uint32_t)WDHT_WDHT(high_threshold);
+}
+
+
+/*!
+ \brief configure ADC resolution
+ \param[in] resolution: ADC resolution
+ only one parameter can be selected which is shown as below:
+ \arg ADC_RESOLUTION_12B: 12-bit ADC resolution
+ \arg ADC_RESOLUTION_10B: 10-bit ADC resolution
+ \arg ADC_RESOLUTION_8B: 8-bit ADC resolution
+ \arg ADC_RESOLUTION_6B: 6-bit ADC resolution
+ \param[out] none
+ \retval none
+*/
+void adc_resolution_config(uint32_t resolution)
+{
+ ADC_CTL0 &= ~((uint32_t)ADC_CTL0_DRES);
+ ADC_CTL0 |= (uint32_t)resolution;
+}
+
+/*!
+ \brief configure ADC oversample mode
+ \param[in] mode: ADC oversampling mode
+ only one parameter can be selected which is shown as below:
+ \arg ADC_OVERSAMPLING_ALL_CONVERT: all oversampled conversions for a channel are done consecutively after a trigger
+ \arg ADC_OVERSAMPLING_ONE_CONVERT: each oversampled conversion for a channel needs a trigger
+ \param[in] shift: ADC oversampling shift
+ only one parameter can be selected which is shown as below:
+ \arg ADC_OVERSAMPLING_SHIFT_NONE: no oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_1B: 1-bit oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_2B: 2-bit oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_3B: 3-bit oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_4B: 3-bit oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_5B: 5-bit oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_6B: 6-bit oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_7B: 7-bit oversampling shift
+ \arg ADC_OVERSAMPLING_SHIFT_8B: 8-bit oversampling shift
+ \param[in] ratio: ADC oversampling ratio
+ only one parameter can be selected which is shown as below:
+ \arg ADC_OVERSAMPLING_RATIO_MUL2: oversampling ratio multiple 2
+ \arg ADC_OVERSAMPLING_RATIO_MUL4: oversampling ratio multiple 4
+ \arg ADC_OVERSAMPLING_RATIO_MUL8: oversampling ratio multiple 8
+ \arg ADC_OVERSAMPLING_RATIO_MUL16: oversampling ratio multiple 16
+ \arg ADC_OVERSAMPLING_RATIO_MUL32: oversampling ratio multiple 32
+ \arg ADC_OVERSAMPLING_RATIO_MUL64: oversampling ratio multiple 64
+ \arg ADC_OVERSAMPLING_RATIO_MUL128: oversampling ratio multiple 128
+ \arg ADC_OVERSAMPLING_RATIO_MUL256: oversampling ratio multiple 256
+ \param[out] none
+ \retval none
+*/
+void adc_oversample_mode_config(uint8_t mode, uint16_t shift, uint8_t ratio)
+{
+ /* configure ADC oversampling mode */
+ if(ADC_OVERSAMPLING_ONE_CONVERT == mode){
+ ADC_OVSAMPCTL |= (uint32_t)ADC_OVSAMPCTL_TOVS;
+ }else{
+ ADC_OVSAMPCTL &= ~((uint32_t)ADC_OVSAMPCTL_TOVS);
+ }
+
+ /* configure the shift and ratio */
+ ADC_OVSAMPCTL &= ~((uint32_t)(ADC_OVSAMPCTL_OVSR | ADC_OVSAMPCTL_OVSS));
+ ADC_OVSAMPCTL |= ((uint32_t)shift | (uint32_t)ratio);
+}
+
+/*!
+ \brief enable ADC oversample mode
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_oversample_mode_enable(void)
+{
+ ADC_OVSAMPCTL |= ADC_OVSAMPCTL_OVSEN;
+}
+
+/*!
+ \brief disable ADC oversample mode
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void adc_oversample_mode_disable(void)
+{
+ ADC_OVSAMPCTL &= ~((uint32_t)ADC_OVSAMPCTL_OVSEN);
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_cmp.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_cmp.c
new file mode 100644
index 0000000000..46ef66cbcf
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_cmp.c
@@ -0,0 +1,180 @@
+/*!
+ \file gd32e230_cmp.c
+ \brief CMP driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_cmp.h"
+
+/*!
+ \brief deinitialize comparator
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void cmp_deinit(void)
+{
+ CMP_CS = ((uint32_t)0x00000000U);
+}
+
+/*!
+ \brief initialize comparator mode
+ \param[in] operating_mode
+ \arg CMP_HIGHSPEED: high speed mode
+ \arg CMP_MIDDLESPEED: medium speed mode
+ \arg CMP_LOWSPEED: low speed mode
+ \arg CMP_VERYLOWSPEED: very-low speed mode
+ \param[in] inverting_input
+ \arg CMP_1_4VREFINT: VREFINT *1/4 input
+ \arg CMP_1_2VREFINT: VREFINT *1/2 input
+ \arg CMP_3_4VREFINT: VREFINT *3/4 input
+ \arg CMP_VREFINT: VREFINT input
+ \arg CMP_PA4: PA4 input
+ \arg CMP_PA5: PA5 input
+ \arg CMP_PA0: PA0 input
+ \arg CMP_PA2: PA2 input
+ \param[in] hysteresis
+ \arg CMP_HYSTERESIS_NO: output no hysteresis
+ \arg CMP_HYSTERESIS_LOW: output low hysteresis
+ \arg CMP_HYSTERESIS_MIDDLE: output middle hysteresis
+ \arg CMP_HYSTERESIS_HIGH: output high hysteresis
+ \param[out] none
+ \retval none
+*/
+void cmp_mode_init(operating_mode_enum operating_mode, inverting_input_enum inverting_input, cmp_hysteresis_enum output_hysteresis)
+{
+ /* initialize comparator mode */
+ CMP_CS |= CS_CMPM(operating_mode) | CS_CMPMSEL(inverting_input) | CS_CMPHST(output_hysteresis);
+
+}
+
+/*!
+ \brief initialize comparator output
+ \param[in] output_slection
+ \arg CMP_OUTPUT_NONE: output no selection
+ \arg CMP_OUTPUT_TIMER0BKIN: TIMER 0 break input
+ \arg CMP_OUTPUT_TIMER0IC0: TIMER 0 channel0 input capture
+ \arg CMP_OUTPUT_TIMER0OCPRECLR: TIMER 0 OCPRE_CLR input
+ \arg CMP_OUTPUT_TIMER2IC0: TIMER 2 channel0 input capture
+ \arg CMP_OUTPUT_TIMER2OCPRECLR: TIMER 2 OCPRE_CLR input
+ \param[in] output_polarity
+ \arg CMP_OUTPUT_POLARITY_INVERTED: output is inverted
+ \arg CMP_OUTPUT_POLARITY_NOINVERTED: output is not inverted
+ \param[out] none
+ \retval none
+*/
+void cmp_output_init(cmp_output_enum output_slection, uint32_t output_polarity)
+{
+ /* initialize comparator output */
+
+ CMP_CS |= CS_CMPOSEL(output_slection);
+ /* output polarity */
+ if(CMP_OUTPUT_POLARITY_INVERTED == output_polarity){
+ CMP_CS |= CMP_CS_CMPPL;
+ }else{
+ CMP_CS &= ~CMP_CS_CMPPL;
+ }
+
+}
+
+/*!
+ \brief enable comparator
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void cmp_enable(void)
+{
+ CMP_CS |= CMP_CS_CMPEN;
+}
+
+/*!
+ \brief disable comparator
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void cmp_disable(void)
+{
+ CMP_CS &= ~CMP_CS_CMPEN;
+}
+
+/*!
+ \brief enable comparator switch
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void cmp_switch_enable(void)
+{
+ CMP_CS |= CMP_CS_CMPSW;
+}
+
+/*!
+ \brief disable comparator switch
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void cmp_switch_disable(void)
+{
+ CMP_CS &= ~CMP_CS_CMPSW;
+}
+
+/*!
+ \brief get output level
+ \param[in] none
+ \param[out] none
+ \retval the output level
+*/
+uint32_t cmp_output_level_get(void)
+{
+ if(CMP_CS & CMP_CS_CMPO){
+ return CMP_OUTPUTLEVEL_HIGH;
+ }else{
+ return CMP_OUTPUTLEVEL_LOW;
+ }
+
+}
+
+/*!
+ \brief lock the comparator
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void cmp_lock_enable(void)
+{
+ CMP_CS |= CMP_CS_CMPLK;
+}
+
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_crc.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_crc.c
new file mode 100644
index 0000000000..59391d7d38
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_crc.c
@@ -0,0 +1,206 @@
+/*!
+ \file gd32e230_crc.c
+ \brief CRC driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_crc.h"
+
+/*!
+ \brief deinit CRC calculation unit
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void crc_deinit(void)
+{
+ CRC_IDATA = (uint32_t)0xFFFFFFFFU;
+ CRC_DATA = (uint32_t)0xFFFFFFFFU;
+ CRC_FDATA = (uint32_t)0x00000000U;
+ CRC_POLY = (uint32_t)0x04C11DB7U;
+ CRC_CTL = CRC_CTL_RST;
+}
+
+/*!
+ \brief enable the reverse operation of output data
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void crc_reverse_output_data_enable(void)
+{
+ CRC_CTL &= (uint32_t)(~ CRC_CTL_REV_O);
+ CRC_CTL |= (uint32_t)CRC_CTL_REV_O;
+}
+
+/*!
+ \brief disable the reverse operation of output data
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void crc_reverse_output_data_disable(void)
+{
+ CRC_CTL &= (uint32_t)(~ CRC_CTL_REV_O);
+}
+
+/*!
+ \brief reset data register to the value of initializaiton data register
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void crc_data_register_reset(void)
+{
+ CRC_CTL |= (uint32_t)CRC_CTL_RST;
+}
+
+/*!
+ \brief read the data register
+ \param[in] none
+ \param[out] none
+ \retval 32-bit value of the data register
+*/
+uint32_t crc_data_register_read(void)
+{
+ uint32_t data;
+ data = CRC_DATA;
+ return (data);
+}
+
+/*!
+ \brief read the free data register
+ \param[in] none
+ \param[out] none
+ \retval 8-bit value of the free data register
+*/
+uint8_t crc_free_data_register_read(void)
+{
+ uint8_t fdata;
+ fdata = (uint8_t)CRC_FDATA;
+ return (fdata);
+}
+
+/*!
+ \brief write the free data register
+ \param[in] free_data: specify 8-bit data
+ \param[out] none
+ \retval none
+*/
+void crc_free_data_register_write(uint8_t free_data)
+{
+ CRC_FDATA = (uint32_t)free_data;
+}
+
+/*!
+ \brief write the initializaiton data register
+ \param[in] init_data:specify 32-bit data
+ \param[out] none
+ \retval none
+*/
+void crc_init_data_register_write(uint32_t init_data)
+{
+ CRC_IDATA = (uint32_t)init_data;
+}
+
+/*!
+ \brief configure the CRC input data function
+ \param[in] data_reverse: specify input data reverse function
+ \arg CRC_INPUT_DATA_NOT: input data is not reversed
+ \arg CRC_INPUT_DATA_BYTE: input data is reversed on 8 bits
+ \arg CRC_INPUT_DATA_HALFWORD: input data is reversed on 16 bits
+ \arg CRC_INPUT_DATA_WORD: input data is reversed on 32 bits
+ \param[out] none
+ \retval none
+*/
+void crc_input_data_reverse_config(uint32_t data_reverse)
+{
+ CRC_CTL &= (uint32_t)(~CRC_CTL_REV_I);
+ CRC_CTL |= (uint32_t)data_reverse;
+}
+
+/*!
+ \brief configure the CRC size of polynomial function
+ \param[in] poly_size: size of polynomial
+ \arg CRC_CTL_PS_32: 32-bit polynomial for CRC calculation
+ \arg CRC_CTL_PS_16: 16-bit polynomial for CRC calculation
+ \arg CRC_CTL_PS_8: 8-bit polynomial for CRC calculation
+ \arg CRC_CTL_PS_7: 7-bit polynomial for CRC calculation
+ \param[out] none
+ \retval none
+*/
+void crc_polynomial_size_set(uint32_t poly_size)
+{
+ CRC_CTL &= (uint32_t)(~(CRC_CTL_PS));
+ CRC_CTL |= (uint32_t)poly_size;
+}
+
+/*!
+ \brief configure the CRC polynomial value function
+ \param[in] poly: configurable polynomial value
+ \param[out] none
+ \retval none
+*/
+void crc_polynomial_set(uint32_t poly)
+{
+ CRC_POLY &= (uint32_t)(~CRC_POLY_POLY);
+ CRC_POLY = poly;
+}
+
+/*!
+ \brief CRC calculate a 32-bit data
+ \param[in] sdata: specify 32-bit data
+ \param[out] none
+ \retval 32-bit CRC calculate value
+*/
+uint32_t crc_single_data_calculate(uint32_t sdata)
+{
+ CRC_DATA = sdata;
+ return(CRC_DATA);
+}
+
+/*!
+ \brief CRC calculate a 32-bit data array
+ \param[in] array: pointer to an array of 32 bit data words
+ \param[in] size: size of the array
+ \param[out] none
+ \retval 32-bit CRC calculate value
+*/
+uint32_t crc_block_data_calculate(uint32_t array[], uint32_t size)
+{
+ uint32_t index;
+ for(index = 0U; index < size; index++){
+ CRC_DATA = array[index];
+ }
+ return (CRC_DATA);
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dbg.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dbg.c
new file mode 100644
index 0000000000..614bd6016e
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dbg.c
@@ -0,0 +1,140 @@
+/*!
+ \file gd32e230_dbg.c
+ \brief DBG driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_dbg.h"
+
+#define DBG_RESET_VAL 0x00000000U
+
+/*!
+ \brief deinitialize the DBG
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void dbg_deinit(void)
+{
+ DBG_CTL0 = DBG_RESET_VAL;
+ DBG_CTL1 = DBG_RESET_VAL;
+}
+
+/*!
+ \brief read DBG_ID code register
+ \param[in] none
+ \param[out] none
+ \retval DBG_ID code
+*/
+uint32_t dbg_id_get(void)
+{
+ return DBG_ID;
+}
+
+/*!
+ \brief enable low power behavior when the mcu is in debug mode
+ \param[in] dbg_low_power:
+ this parameter can be any combination of the following values:
+ \arg DBG_LOW_POWER_SLEEP: keep debugger connection during sleep mode
+ \arg DBG_LOW_POWER_DEEPSLEEP: keep debugger connection during deepsleep mode
+ \arg DBG_LOW_POWER_STANDBY: keep debugger connection during standby mode
+ \param[out] none
+ \retval none
+*/
+void dbg_low_power_enable(uint32_t dbg_low_power)
+{
+ DBG_CTL0 |= dbg_low_power;
+}
+
+/*!
+ \brief disable low power behavior when the mcu is in debug mode
+ \param[in] dbg_low_power:
+ this parameter can be any combination of the following values:
+ \arg DBG_LOW_POWER_SLEEP: donot keep debugger connection during sleep mode
+ \arg DBG_LOW_POWER_DEEPSLEEP: donot keep debugger connection during deepsleep mode
+ \arg DBG_LOW_POWER_STANDBY: donot keep debugger connection during standby mode
+ \param[out] none
+ \retval none
+*/
+void dbg_low_power_disable(uint32_t dbg_low_power)
+{
+ DBG_CTL0 &= ~dbg_low_power;
+}
+
+/*!
+ \brief enable peripheral behavior when the mcu is in debug mode
+ \param[in] dbg_periph: DBG peripheral
+ only one parameter can be selected which is shown as below:
+ \arg DBG_FWDGT_HOLD: debug FWDGT kept when core is halted
+ \arg DBG_WWDGT_HOLD: debug WWDGT kept when core is halted
+ \arg DBG_TIMER0_HOLD: TIMER0 counter kept when core is halted
+ \arg DBG_TIMER2_HOLD: TIMER2 counter kept when core is halted
+ \arg DBG_TIMER5_HOLD: hold TIMER5 counter when core is halted
+ \arg DBG_TIMER13_HOLD: hold TIMER13 counter when core is halted
+ \arg DBG_TIMER14_HOLD: hold TIMER14 counter when core is halted
+ \arg DBG_TIMER15_HOLD: hold TIMER15 counter when core is halted
+ \arg DBG_TIMER16_HOLD: hold TIMER16 counter when core is halted
+ \arg DBG_I2C0_HOLD: hold I2C0 SMBUS when core is halted
+ \arg DBG_I2C1_HOLD: hold I2C1 SMBUS when core is halted
+ \arg DBG_RTC_HOLD: hold RTC calendar and wakeup counter when core is halted
+ \param[out] none
+ \retval none
+*/
+void dbg_periph_enable(dbg_periph_enum dbg_periph)
+{
+ DBG_REG_VAL(dbg_periph) |= BIT(DBG_BIT_POS(dbg_periph));
+}
+
+/*!
+ \brief disable peripheral behavior when the mcu is in debug mode
+ \param[in] dbg_periph: DBG peripheral
+ only one parameter can be selected which is shown as below:
+ \arg DBG_FWDGT_HOLD: debug FWDGT kept when core is halted
+ \arg DBG_WWDGT_HOLD: debug WWDGT kept when core is halted
+ \arg DBG_TIMER0_HOLD: TIMER0 counter kept when core is halted
+ \arg DBG_TIMER2_HOLD: TIMER2 counter kept when core is halted
+ \arg DBG_TIMER5_HOLD: hold TIMER5 counter when core is halted
+ \arg DBG_TIMER13_HOLD: hold TIMER13 counter when core is halted
+ \arg DBG_TIMER14_HOLD: hold TIMER14 counter when core is halted
+ \arg DBG_TIMER15_HOLD: hold TIMER15 counter when core is halted
+ \arg DBG_TIMER16_HOLD: hold TIMER16 counter when core is halted
+ \arg DBG_I2C0_HOLD: hold I2C0 SMBUS when core is halted
+ \arg DBG_I2C1_HOLD: hold I2C1 SMBUS when core is halted
+ \arg DBG_RTC_HOLD: hold RTC calendar and wakeup counter when core is halted
+ \param[out] none
+ \retval none
+*/
+void dbg_periph_disable(dbg_periph_enum dbg_periph)
+{
+ DBG_REG_VAL(dbg_periph) &= ~BIT(DBG_BIT_POS(dbg_periph));
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dma.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dma.c
new file mode 100644
index 0000000000..5cdf462001
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_dma.c
@@ -0,0 +1,562 @@
+/*!
+ \file gd32e230_dma.c
+ \brief DMA driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_dma.h"
+
+/*!
+ \brief deinitialize DMA a channel registers
+ \param[in] channelx: specify which DMA channel is deinitialized
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_deinit(dma_channel_enum channelx)
+{
+ /* disable DMA a channel */
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_CHEN;
+ /* reset DMA channel registers */
+ DMA_CHCTL(channelx) = DMA_CHCTL_RESET_VALUE;
+ DMA_CHCNT(channelx) = DMA_CHCNT_RESET_VALUE;
+ DMA_CHPADDR(channelx) = DMA_CHPADDR_RESET_VALUE;
+ DMA_CHMADDR(channelx) = DMA_CHMADDR_RESET_VALUE;
+ DMA_INTC |= DMA_FLAG_ADD(DMA_CHINTF_RESET_VALUE, channelx);
+}
+
+/*!
+ \brief initialize the parameters of DMA struct with the default values
+ \param[in] init_struct: the initialization data needed to initialize DMA channel
+ \param[out] none
+ \retval none
+*/
+void dma_struct_para_init(dma_parameter_struct* init_struct)
+{
+ /* set the DMA struct with the default values */
+ init_struct->periph_addr = 0U;
+ init_struct->periph_width = 0U;
+ init_struct->periph_inc = (uint8_t)DMA_PERIPH_INCREASE_DISABLE;
+ init_struct->memory_addr = 0U;
+ init_struct->memory_width = 0U;
+ init_struct->memory_inc = (uint8_t)DMA_MEMORY_INCREASE_DISABLE;
+ init_struct->number = 0U;
+ init_struct->direction = (uint8_t)DMA_PERIPHERAL_TO_MEMORY;
+ init_struct->priority = (uint32_t)DMA_PRIORITY_LOW;
+}
+
+/*!
+ \brief initialize DMA channel
+ \param[in] channelx: specify which DMA channel is initialized
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] init_struct: the data needed to initialize DMA channel
+ periph_addr: peripheral base address
+ periph_width: DMA_PERIPHERAL_WIDTH_8BIT,DMA_PERIPHERAL_WIDTH_16BIT,DMA_PERIPHERAL_WIDTH_32BIT
+ periph_inc: DMA_PERIPH_INCREASE_ENABLE,DMA_PERIPH_INCREASE_DISABLE
+ memory_addr: memory base address
+ memory_width: DMA_MEMORY_WIDTH_8BIT,DMA_MEMORY_WIDTH_16BIT,DMA_MEMORY_WIDTH_32BIT
+ memory_inc: DMA_MEMORY_INCREASE_ENABLE,DMA_MEMORY_INCREASE_DISABLE
+ direction: DMA_PERIPHERAL_TO_MEMORY,DMA_MEMORY_TO_PERIPHERAL
+ number: the number of remaining data to be transferred by the DMA
+ priority: DMA_PRIORITY_LOW,DMA_PRIORITY_MEDIUM,DMA_PRIORITY_HIGH,DMA_PRIORITY_ULTRA_HIGH
+ \param[out] none
+ \retval none
+*/
+void dma_init(dma_channel_enum channelx, dma_parameter_struct* init_struct)
+{
+ uint32_t ctl;
+
+ dma_channel_disable(channelx);
+
+ /* configure peripheral base address */
+ DMA_CHPADDR(channelx) = init_struct->periph_addr;
+
+ /* configure memory base address */
+ DMA_CHMADDR(channelx) = init_struct->memory_addr;
+
+ /* configure the number of remaining data to be transferred */
+ DMA_CHCNT(channelx) = (init_struct->number & DMA_CHANNEL_CNT_MASK);
+
+ /* configure peripheral transfer width,memory transfer width,channel priotity */
+ ctl = DMA_CHCTL(channelx);
+ ctl &= ~(DMA_CHXCTL_PWIDTH | DMA_CHXCTL_MWIDTH | DMA_CHXCTL_PRIO);
+ ctl |= (init_struct->periph_width | init_struct->memory_width | init_struct->priority);
+ DMA_CHCTL(channelx) = ctl;
+
+ /* configure peripheral increasing mode */
+ if(DMA_PERIPH_INCREASE_ENABLE == init_struct->periph_inc){
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_PNAGA;
+ }else{
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_PNAGA;
+ }
+
+ /* configure memory increasing mode */
+ if(DMA_MEMORY_INCREASE_ENABLE == init_struct->memory_inc){
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_MNAGA;
+ }else{
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_MNAGA;
+ }
+
+ /* configure the direction of data transfer */
+ if(DMA_PERIPHERAL_TO_MEMORY == init_struct->direction){
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_DIR;
+ }else{
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_DIR;
+ }
+}
+
+/*!
+ \brief enable DMA circulation mode
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_circulation_enable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_CMEN;
+}
+
+/*!
+ \brief disable DMA circulation mode
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_circulation_disable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_CMEN;
+}
+
+/*!
+ \brief enable memory to memory mode
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_memory_to_memory_enable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_M2M;
+}
+
+/*!
+ \brief disable memory to memory mode
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_memory_to_memory_disable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_M2M;
+}
+
+/*!
+ \brief enable DMA channel
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_channel_enable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_CHEN;
+}
+
+/*!
+ \brief disable DMA channel
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_channel_disable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_CHEN;
+}
+
+/*!
+ \brief set DMA peripheral base address
+ \param[in] channelx: specify which DMA channel to set peripheral base address
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] address: peripheral base address
+ \param[out] none
+ \retval none
+*/
+void dma_periph_address_config(dma_channel_enum channelx, uint32_t address)
+{
+ DMA_CHPADDR(channelx) = address;
+}
+
+/*!
+ \brief set DMA memory base address
+ \param[in] channelx: specify which DMA channel to set memory base address
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] address: memory base address
+ \param[out] none
+ \retval none
+*/
+void dma_memory_address_config(dma_channel_enum channelx, uint32_t address)
+{
+ DMA_CHMADDR(channelx) = address;
+}
+
+/*!
+ \brief set the number of remaining data to be transferred by the DMA
+ \param[in] channelx: specify which DMA channel to set number
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] number: the number of remaining data to be transferred by the DMA
+ \param[out] none
+ \retval none
+*/
+void dma_transfer_number_config(dma_channel_enum channelx, uint32_t number)
+{
+ DMA_CHCNT(channelx) = (number & DMA_CHANNEL_CNT_MASK);
+}
+
+/*!
+ \brief get the number of remaining data to be transferred by the DMA
+ \param[in] channelx: specify which DMA channel to set number
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval the number of remaining data to be transferred by the DMA
+*/
+uint32_t dma_transfer_number_get(dma_channel_enum channelx)
+{
+ return (uint32_t)DMA_CHCNT(channelx);
+}
+
+/*!
+ \brief configure priority level of DMA channel
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] priority: priority level of this channel
+ only one parameter can be selected which is shown as below:
+ \arg DMA_PRIORITY_LOW: low priority
+ \arg DMA_PRIORITY_MEDIUM: medium priority
+ \arg DMA_PRIORITY_HIGH: high priority
+ \arg DMA_PRIORITY_ULTRA_HIGH: ultra high priority
+ \param[out] none
+ \retval none
+*/
+void dma_priority_config(dma_channel_enum channelx, uint32_t priority)
+{
+ uint32_t ctl;
+
+ /* acquire DMA_CHxCTL register */
+ ctl = DMA_CHCTL(channelx);
+ /* assign regiser */
+ ctl &= ~DMA_CHXCTL_PRIO;
+ ctl |= priority;
+ DMA_CHCTL(channelx) = ctl;
+}
+
+/*!
+ \brief configure transfer data width of memory
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] mwidth: transfer data width of memory
+ only one parameter can be selected which is shown as below:
+ \arg DMA_MEMORY_WIDTH_8BIT: transfer data width of memory is 8-bit
+ \arg DMA_MEMORY_WIDTH_16BIT: transfer data width of memory is 16-bit
+ \arg DMA_MEMORY_WIDTH_32BIT: transfer data width of memory is 32-bit
+ \param[out] none
+ \retval none
+*/
+void dma_memory_width_config(dma_channel_enum channelx, uint32_t mwidth)
+{
+ uint32_t ctl;
+
+ /* acquire DMA_CHxCTL register */
+ ctl = DMA_CHCTL(channelx);
+ /* assign regiser */
+ ctl &= ~DMA_CHXCTL_MWIDTH;
+ ctl |= mwidth;
+ DMA_CHCTL(channelx) = ctl;
+}
+
+/*!
+ \brief configure transfer data width of peripheral
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] pwidth: transfer data width of peripheral
+ only one parameter can be selected which is shown as below:
+ \arg DMA_PERIPHERAL_WIDTH_8BIT: transfer data width of peripheral is 8-bit
+ \arg DMA_PERIPHERAL_WIDTH_16BIT: transfer data width of peripheral is 16-bit
+ \arg DMA_PERIPHERAL_WIDTH_32BIT: transfer data width of peripheral is 32-bit
+ \param[out] none
+ \retval none
+*/
+void dma_periph_width_config(dma_channel_enum channelx, uint32_t pwidth)
+{
+ uint32_t ctl;
+
+ /* acquire DMA_CHxCTL register */
+ ctl = DMA_CHCTL(channelx);
+ /* assign regiser */
+ ctl &= ~DMA_CHXCTL_PWIDTH;
+ ctl |= pwidth;
+ DMA_CHCTL(channelx) = ctl;
+}
+
+/*!
+ \brief enable next address increasement algorithm of memory
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_memory_increase_enable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_MNAGA;
+}
+
+/*!
+ \brief disable next address increasement algorithm of memory
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_memory_increase_disable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_MNAGA;
+}
+
+/*!
+ \brief enable next address increasement algorithm of peripheral
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_periph_increase_enable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_PNAGA;
+}
+
+/*!
+ \brief disable next address increasement algorithm of peripheral
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[out] none
+ \retval none
+*/
+void dma_periph_increase_disable(dma_channel_enum channelx)
+{
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_PNAGA;
+}
+
+/*!
+ \brief configure the direction of data transfer on the channel
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] direction: specify the direction of data transfer
+ only one parameter can be selected which is shown as below:
+ \arg DMA_PERIPHERAL_TO_MEMORY: read from peripheral and write to memory
+ \arg DMA_MEMORY_TO_PERIPHERAL: read from memory and write to peripheral
+ \param[out] none
+ \retval none
+*/
+void dma_transfer_direction_config(dma_channel_enum channelx, uint32_t direction)
+{
+ if(DMA_PERIPHERAL_TO_MEMORY == direction){
+ DMA_CHCTL(channelx) &= ~DMA_CHXCTL_DIR;
+ } else {
+ DMA_CHCTL(channelx) |= DMA_CHXCTL_DIR;
+ }
+}
+
+/*!
+ \brief check DMA flag is set or not
+ \param[in] channelx: specify which DMA channel to get flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] flag: specify get which flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_FLAG_G: global interrupt flag of channel
+ \arg DMA_FLAG_FTF: full transfer finish flag of channel
+ \arg DMA_FLAG_HTF: half transfer finish flag of channel
+ \arg DMA_FLAG_ERR: error flag of channel
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus dma_flag_get(dma_channel_enum channelx, uint32_t flag)
+{
+ FlagStatus reval;
+
+ if(RESET != (DMA_INTF & DMA_FLAG_ADD(flag, channelx))){
+ reval = SET;
+ }else{
+ reval = RESET;
+ }
+
+ return reval;
+}
+
+/*!
+ \brief clear DMA a channel flag
+ \param[in] channelx: specify which DMA channel to clear flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] flag: specify get which flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_FLAG_G: global interrupt flag of channel
+ \arg DMA_FLAG_FTF: full transfer finish flag of channel
+ \arg DMA_FLAG_HTF: half transfer finish flag of channel
+ \arg DMA_FLAG_ERR: error flag of channel
+ \param[out] none
+ \retval none
+*/
+void dma_flag_clear(dma_channel_enum channelx, uint32_t flag)
+{
+ DMA_INTC |= DMA_FLAG_ADD(flag, channelx);
+}
+
+/*!
+ \brief check DMA flag and interrupt enable bit is set or not
+ \param[in] channelx: specify which DMA channel to get flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] flag: specify get which flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_INT_FLAG_FTF: transfer finish flag of channel
+ \arg DMA_INT_FLAG_HTF: half transfer finish flag of channel
+ \arg DMA_INT_FLAG_ERR: error flag of channel
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus dma_interrupt_flag_get(dma_channel_enum channelx, uint32_t flag)
+{
+ uint32_t interrupt_enable = 0U, interrupt_flag = 0U;
+
+ switch(flag){
+ case DMA_INT_FLAG_FTF:
+ interrupt_flag = DMA_INTF & DMA_FLAG_ADD(flag, channelx);
+ interrupt_enable = DMA_CHCTL(channelx) & DMA_CHXCTL_FTFIE;
+ break;
+ case DMA_INT_FLAG_HTF:
+ interrupt_flag = DMA_INTF & DMA_FLAG_ADD(flag, channelx);
+ interrupt_enable = DMA_CHCTL(channelx) & DMA_CHXCTL_HTFIE;
+ break;
+ case DMA_INT_FLAG_ERR:
+ interrupt_flag = DMA_INTF & DMA_FLAG_ADD(flag, channelx);
+ interrupt_enable = DMA_CHCTL(channelx) & DMA_CHXCTL_ERRIE;
+ break;
+ default:
+ break;
+ }
+
+ if(interrupt_flag && interrupt_enable){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear DMA a channel interrupt flag
+ \param[in] channelx: specify which DMA channel to clear flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] flag: specify get which flag
+ only one parameter can be selected which is shown as below:
+ \arg DMA_INT_FLAG_G: global interrupt flag of channel
+ \arg DMA_INT_FLAG_FTF: transfer finish flag of channel
+ \arg DMA_INT_FLAG_HTF: half transfer finish flag of channel
+ \arg DMA_INT_FLAG_ERR: error flag of channel
+ \param[out] none
+ \retval none
+*/
+void dma_interrupt_flag_clear(dma_channel_enum channelx, uint32_t flag)
+{
+ DMA_INTC |= DMA_FLAG_ADD(flag,channelx);
+}
+
+/*!
+ \brief enable DMA interrupt
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] source: specify which interrupt to enable
+ only one parameter can be selected which is shown as below:
+ \arg DMA_INT_ERR: channel error interrupt
+ \arg DMA_INT_HTF: channel half transfer finish interrupt
+ \arg DMA_INT_FTF: channel full transfer finish interrupt
+ \param[out] none
+ \retval none
+*/
+void dma_interrupt_enable(dma_channel_enum channelx, uint32_t source)
+{
+ DMA_CHCTL(channelx) |= source;
+}
+
+/*!
+ \brief disable DMA interrupt
+ \param[in] channelx: specify which DMA channel to set
+ only one parameter can be selected which is shown as below:
+ \arg DMA_CHx(x=0..4)
+ \param[in] source: specify which interrupt to disable
+ only one parameter can be selected which is shown as below:
+ \arg DMA_INT_ERR: channel error interrupt
+ \arg DMA_INT_HTF: channel half transfer finish interrupt
+ \arg DMA_INT_FTF: channel full transfer finish interrupt
+ \param[out] none
+ \retval none
+*/
+void dma_interrupt_disable(dma_channel_enum channelx, uint32_t source)
+{
+ DMA_CHCTL(channelx) &= ~source;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_exti.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_exti.c
new file mode 100644
index 0000000000..894a38c62f
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_exti.c
@@ -0,0 +1,254 @@
+/*!
+ \file gd32e230_exti.c
+ \brief EXTI driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_exti.h"
+
+/*!
+ \brief deinitialize the EXTI
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void exti_deinit(void)
+{
+ /* reset the value of all the EXTI registers */
+ EXTI_INTEN = (uint32_t)0x0F940000U;
+ EXTI_EVEN = (uint32_t)0x00000000U;
+ EXTI_RTEN = (uint32_t)0x00000000U;
+ EXTI_FTEN = (uint32_t)0x00000000U;
+ EXTI_SWIEV = (uint32_t)0x00000000U;
+}
+
+/*!
+ \brief initialize the EXTI
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..17,19,21): EXTI line x
+ \param[in] mode: interrupt or event mode, refer to exti_mode_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_INTERRUPT: interrupt mode
+ \arg EXTI_EVENT: event mode
+ \param[in] trig_type: interrupt trigger type, refer to exti_trig_type_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_TRIG_RISING: rising edge trigger
+ \arg EXTI_TRIG_FALLING: falling trigger
+ \arg EXTI_TRIG_BOTH: rising and falling trigger
+ \param[out] none
+ \retval none
+*/
+void exti_init(exti_line_enum linex, \
+ exti_mode_enum mode, \
+ exti_trig_type_enum trig_type)
+{
+ /* reset the EXTI line x */
+ EXTI_INTEN &= ~(uint32_t)linex;
+ EXTI_EVEN &= ~(uint32_t)linex;
+ EXTI_RTEN &= ~(uint32_t)linex;
+ EXTI_FTEN &= ~(uint32_t)linex;
+
+ /* set the EXTI mode and enable the interrupts or events from EXTI line x */
+ switch(mode){
+ case EXTI_INTERRUPT:
+ EXTI_INTEN |= (uint32_t)linex;
+ break;
+ case EXTI_EVENT:
+ EXTI_EVEN |= (uint32_t)linex;
+ break;
+ default:
+ break;
+ }
+
+ /* set the EXTI trigger type */
+ switch(trig_type){
+ case EXTI_TRIG_RISING:
+ EXTI_RTEN |= (uint32_t)linex;
+ EXTI_FTEN &= ~(uint32_t)linex;
+ break;
+ case EXTI_TRIG_FALLING:
+ EXTI_RTEN &= ~(uint32_t)linex;
+ EXTI_FTEN |= (uint32_t)linex;
+ break;
+ case EXTI_TRIG_BOTH:
+ EXTI_RTEN |= (uint32_t)linex;
+ EXTI_FTEN |= (uint32_t)linex;
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief enable the interrupts from EXTI line x
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..27): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_interrupt_enable(exti_line_enum linex)
+{
+ EXTI_INTEN |= (uint32_t)linex;
+}
+
+/*!
+ \brief enable the events from EXTI line x
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..27): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_event_enable(exti_line_enum linex)
+{
+ EXTI_EVEN |= (uint32_t)linex;
+}
+
+/*!
+ \brief disable the interrupt from EXTI line x
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..27): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_interrupt_disable(exti_line_enum linex)
+{
+ EXTI_INTEN &= ~(uint32_t)linex;
+}
+
+/*!
+ \brief disable the events from EXTI line x
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..27): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_event_disable(exti_line_enum linex)
+{
+ EXTI_EVEN &= ~(uint32_t)linex;
+}
+
+/*!
+ \brief get EXTI lines flag
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..17,19,21): EXTI line x
+ \param[out] none
+ \retval FlagStatus: status of flag (RESET or SET)
+*/
+FlagStatus exti_flag_get(exti_line_enum linex)
+{
+ if(RESET != (EXTI_PD & (uint32_t)linex)){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear EXTI lines pending flag
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..17,19,21): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_flag_clear(exti_line_enum linex)
+{
+ EXTI_PD = (uint32_t)linex;
+}
+
+/*!
+ \brief get EXTI lines flag when the interrupt flag is set
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..17,19,21): EXTI line x
+ \param[out] none
+ \retval FlagStatus: status of flag (RESET or SET)
+*/
+FlagStatus exti_interrupt_flag_get(exti_line_enum linex)
+{
+ uint32_t flag_left, flag_right;
+
+ flag_left = EXTI_PD & (uint32_t)linex;
+ flag_right = EXTI_INTEN & (uint32_t)linex;
+
+ if((RESET != flag_left) && (RESET != flag_right)){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear EXTI lines pending flag
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..17,19,21): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_interrupt_flag_clear(exti_line_enum linex)
+{
+ EXTI_PD = (uint32_t)linex;
+}
+
+/*!
+ \brief enable EXTI software interrupt event
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..17,19,21): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_software_interrupt_enable(exti_line_enum linex)
+{
+ EXTI_SWIEV |= (uint32_t)linex;
+}
+
+/*!
+ \brief disable EXTI software interrupt event
+ \param[in] linex: EXTI line number, refer to exti_line_enum
+ only one parameter can be selected which is shown as below:
+ \arg EXTI_x (x=0..17,19,21): EXTI line x
+ \param[out] none
+ \retval none
+*/
+void exti_software_interrupt_disable(exti_line_enum linex)
+{
+ EXTI_SWIEV &= ~(uint32_t)linex;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fmc.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fmc.c
new file mode 100644
index 0000000000..1489157807
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fmc.c
@@ -0,0 +1,814 @@
+/*!
+ \file gd32e230_fmc.c
+ \brief FMC driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_fmc.h"
+
+/* FMC register bit offset */
+#define OB_HIGH_WP_OFFSET ((uint32_t)8U)
+#define FMC_OBSTAT_USER_OFFSET ((uint32_t)8U)
+#define FMC_OBSTAT_DATA_OFFSET ((uint32_t)16U)
+
+/*!
+ \brief unlock the main FMC operation
+ it is better to used in pairs with fmc_lock
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fmc_unlock(void)
+{
+ if((RESET != (FMC_CTL & FMC_CTL_LK))){
+ /* write the FMC key */
+ FMC_KEY = UNLOCK_KEY0;
+ FMC_KEY = UNLOCK_KEY1;
+ }
+}
+
+/*!
+ \brief lock the main FMC operation
+ it is better to used in pairs with fmc_unlock after an operation
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fmc_lock(void)
+{
+ /* set the LK bit*/
+ FMC_CTL |= FMC_CTL_LK;
+}
+
+/*!
+ \brief set the wait state counter value
+ \param[in] wscnt: wait state counter value
+ \arg WS_WSCNT_0: 0 wait state added
+ \arg WS_WSCNT_1: 1 wait state added
+ \arg WS_WSCNT_2: 2 wait state added
+ \param[out] none
+ \retval none
+*/
+void fmc_wscnt_set(uint8_t wscnt)
+{
+ uint32_t reg;
+
+ reg = FMC_WS;
+ /* set the wait state counter value */
+ reg &= ~FMC_WS_WSCNT;
+ FMC_WS = (reg | wscnt);
+}
+
+/*!
+ \brief pre-fetch enable
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fmc_prefetch_enable(void)
+{
+ FMC_WS |= FMC_WS_PFEN;
+}
+
+/*!
+ \brief pre-fetch disable
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fmc_prefetch_disable(void)
+{
+ FMC_WS &= ~FMC_WS_PFEN;
+}
+
+/*!
+ \brief erase page
+ \param[in] page_address: target page start address
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum fmc_page_erase(uint32_t page_address)
+{
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_READY == fmc_state){
+ /* start page erase */
+ FMC_CTL |= FMC_CTL_PER;
+ FMC_ADDR = page_address;
+ FMC_CTL |= FMC_CTL_START;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ /* reset the PER bit */
+ FMC_CTL &= ~FMC_CTL_PER;
+ }
+
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief erase whole chip
+ \param[in] none
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum fmc_mass_erase(void)
+{
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_READY == fmc_state){
+ /* start chip erase */
+ FMC_CTL |= FMC_CTL_MER;
+ FMC_CTL |= FMC_CTL_START;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ /* reset the MER bit */
+ FMC_CTL &= ~FMC_CTL_MER;
+ }
+
+ /* return the fmc state */
+ return fmc_state;
+}
+
+/*!
+ \brief program a double word at the corresponding address in main flash, this
+ function also applies to OTP(address 0x1FFF_7000~0x1FFF_73FF) programming
+ \param[in] address: address to program
+ \param[in] data: double word to program
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum fmc_doubleword_program(uint32_t address, uint64_t data)
+{
+ uint32_t data0, data1;
+
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ data0 = (uint32_t)(data & 0xFFFFFFFFU);
+ data1 = (uint32_t)((data>>32U) & 0xFFFFFFFFU);
+
+ /* configure program width */
+ FMC_WS |= FMC_WS_PGW;
+ if(FMC_READY == fmc_state){
+ /* set the PG bit to start program */
+ FMC_CTL |= FMC_CTL_PG;
+ REG32(address) = data0;
+ REG32(address+4U) = data1;
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ /* reset the PG bit */
+ FMC_CTL &= ~FMC_CTL_PG;
+ }
+ FMC_WS &= ~(FMC_WS_PGW);
+
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief program a word at the corresponding address in main flash, this function
+ also applies to OTP(address 0x1FFF_7000~0x1FFF_73FF) programming
+ \param[in] address: address to program
+ \param[in] data: word to program
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum fmc_word_program(uint32_t address, uint32_t data)
+{
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_READY == fmc_state){
+ /* set the PG bit to start program */
+ FMC_CTL |= FMC_CTL_PG;
+
+ REG32(address) = data;
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ /* reset the PG bit */
+ FMC_CTL &= ~FMC_CTL_PG;
+ }
+
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief unlock the option byte operation
+ it is better to used in pairs with ob_lock
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void ob_unlock(void)
+{
+ if(RESET == (FMC_CTL & FMC_CTL_OBWEN)){
+ /* write the FMC key */
+ FMC_OBKEY = UNLOCK_KEY0;
+ FMC_OBKEY = UNLOCK_KEY1;
+ }
+ /* wait until OBWEN bit is set by hardware */
+ while(RESET == (FMC_CTL & FMC_CTL_OBWEN)){
+ }
+}
+
+/*!
+ \brief lock the option byte operation
+ it is better to used in pairs with ob_unlock after an operation
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void ob_lock(void)
+{
+ /* reset the OBWE bit */
+ FMC_CTL &= ~FMC_CTL_OBWEN;
+}
+
+/*!
+ \brief reload the option byte and generate a system reset
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void ob_reset(void)
+{
+ /* set the OBRLD bit */
+ FMC_CTL |= FMC_CTL_OBRLD;
+}
+
+/*!
+ \brief get option byte value
+ \param[in] addr: address of option byte
+ \arg OB_SPC_USER_ADDRESS: address of option byte security protection and user
+ \arg OB_DATA_ADDRESS: address of option byte data
+ \arg OB_WP_ADDRESS: address of option byte write protection
+ \param[out] option byte value
+*/
+uint32_t option_byte_value_get(uint32_t addr)
+{
+ return *(volatile uint32_t *)(addr);
+}
+
+/*!
+ \brief erase the option byte
+ programmer must ensure FMC & option byte are both unlocked before calling this function
+ \param[in] none
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum ob_erase(void)
+{
+ uint16_t fmc_spc;
+ uint32_t val;
+ uint32_t fmc_plevel = ob_obstat_plevel_get();
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ /* get the original option byte security protection code */
+ if(OB_OBSTAT_PLEVEL_NO == fmc_plevel){
+ fmc_spc = FMC_NSPC;
+ }else if(OB_OBSTAT_PLEVEL_LOW == fmc_plevel){
+ fmc_spc = FMC_LSPC;
+ }else{
+ fmc_spc = FMC_HSPC;
+ fmc_state = FMC_OB_HSPC;
+ }
+ val = HIGH_16BITS_MASK | (uint32_t)fmc_spc;
+
+ if(FMC_READY == fmc_state){
+ /* start erase the option byte */
+ FMC_CTL |= FMC_CTL_OBER;
+ FMC_CTL |= FMC_CTL_START;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_READY == fmc_state){
+ /* reset the OBER bit */
+ FMC_CTL &= ~FMC_CTL_OBER;
+
+ /* set the OBPG bit */
+ FMC_CTL |= FMC_CTL_OBPG;
+
+ /* restore the last get option byte security protection code */
+ OB_SPC_USER = val;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBPG bit */
+ FMC_CTL &= ~FMC_CTL_OBPG;
+ }
+ }else{
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBPG bit */
+ FMC_CTL &= ~FMC_CTL_OBPG;
+ }
+ }
+ }
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief enable option byte write protection (OB_WP)
+ \param[in] ob_wp: write protection configuration data. Notice that set the
+ bit to 1 if you want to protect the corresponding pages.
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum ob_write_protection_enable(uint16_t ob_wp)
+{
+ uint32_t ob_wrp_val = 0U;
+
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ ob_wp = (uint16_t)(~ob_wp);
+ ob_wrp_val |= (uint32_t)ob_wp&0x00FFU;
+ ob_wrp_val |= (((uint32_t)ob_wp&0xFF00U)>>8U) << 16U;
+
+ if(FMC_READY == fmc_state){
+ /* set the OBPG bit*/
+ FMC_CTL |= FMC_CTL_OBPG;
+
+ if(0xFFFFFFFFU != ob_wrp_val){
+ OB_WP = ob_wrp_val;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+ }
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBPG bit */
+ FMC_CTL &= ~FMC_CTL_OBPG;
+ }
+ }
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief configure security protection
+ \param[in] ob_spc: specify security protection code
+ \arg FMC_NSPC: no security protection
+ \arg FMC_LSPC: low security protection
+ \arg FMC_HSPC: high security protection
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum ob_security_protection_config(uint16_t ob_spc)
+{
+ uint32_t val;
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ val = option_byte_value_get(OB_SPC_USER_ADDRESS);
+ /* the OB_SPC byte cannot be reprogrammed if protection level is high */
+ if(OB_OBSTAT_PLEVEL_HIGH == ob_obstat_plevel_get()){
+ fmc_state = FMC_OB_HSPC;
+ }
+
+ val &= ~LOW_16BITS_MASK;
+ val |= (uint32_t)ob_spc;
+
+ if(FMC_READY == fmc_state){
+ /* start erase the option byte */
+ FMC_CTL |= FMC_CTL_OBER;
+ FMC_CTL |= FMC_CTL_START;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_READY == fmc_state){
+
+ /* reset the OBER bit */
+ FMC_CTL &= ~FMC_CTL_OBER;
+
+ /* enable the option bytes programming */
+ FMC_CTL |= FMC_CTL_OBPG;
+
+ OB_SPC_USER = val;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBPG bit */
+ FMC_CTL &= ~FMC_CTL_OBPG;
+ }
+ }else{
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBER bit */
+ FMC_CTL &= ~FMC_CTL_OBER;
+ }
+ }
+ }
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief program the FMC user option byte
+ this function can only clear the corresponding bits to be 0 rather than 1.
+ the function ob_erase is used to set all the bits to be 1.
+ \param[in] ob_user: user option byte
+ one or more parameters (bitwise AND) can be selected which are shown as below:
+ \arg OB_FWDGT_HW: hardware free watchdog timer
+ \arg OB_DEEPSLEEP_RST: no reset when entering deepsleep mode
+ \arg OB_STDBY_RST: no reset when entering standby mode
+ \arg OB_BOOT1_SET_1: BOOT1 bit is 1
+ \arg OB_VDDA_DISABLE: disable VDDA monitor
+ \arg OB_SRAM_PARITY_ENABLE: enable sram parity check
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum ob_user_write(uint8_t ob_user)
+{
+ uint32_t val_spc_user;
+ /* check whether FMC is ready or not */
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ val_spc_user = option_byte_value_get(OB_SPC_USER_ADDRESS);
+
+ val_spc_user &= ~HIGH_16BITS_MASK;
+
+ val_spc_user |= ((uint32_t)ob_user<<16U);
+
+ if(FMC_READY == fmc_state){
+ /* start erase the option byte */
+ FMC_CTL |= FMC_CTL_OBER;
+ FMC_CTL |= FMC_CTL_START;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_READY == fmc_state){
+
+ /* reset the OBER bit */
+ FMC_CTL &= ~FMC_CTL_OBER;
+
+ /* enable the option bytes programming */
+ FMC_CTL |= FMC_CTL_OBPG;
+
+ OB_SPC_USER = val_spc_user;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBPG bit */
+ FMC_CTL &= ~FMC_CTL_OBPG;
+ }
+ }else{
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBER bit */
+ FMC_CTL &= ~FMC_CTL_OBER;
+ }
+ }
+ }
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief program the FMC data option byte
+ \param[in] data: the data to be programmed, OB_DATA[0:15]
+ \param[out] none
+ \retval fmc_state: state of FMC
+ \arg FMC_READY: the operation has been completed
+ \arg FMC_BUSY: the operation is in progress
+ \arg FMC_PGERR: program error
+ \arg FMC_PGAERR: program alignment error
+ \arg FMC_WPERR: erase/program protection error
+ \arg FMC_TOERR: timeout error
+ \arg FMC_OB_HSPC: option byte security protection code high
+*/
+fmc_state_enum ob_data_program(uint16_t data)
+{
+ fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+ uint32_t val = 0U;
+
+ val |= (uint32_t)data&0x00FFU;
+ val |= (((uint32_t)data&0xFF00U)>>8U) << 16U;
+
+ if(FMC_READY == fmc_state){
+ /* set the OBPG bit */
+ FMC_CTL |= FMC_CTL_OBPG;
+ OB_DATA = val;
+
+ /* wait for the FMC ready */
+ fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
+
+ if(FMC_TOERR != fmc_state){
+ /* reset the OBPG bit */
+ FMC_CTL &= ~FMC_CTL_OBPG;
+ }
+ }
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief get OB_USER in register FMC_OBSTAT
+ \param[in] none
+ \param[out] none
+ \retval ob_user
+*/
+uint8_t ob_user_get(void)
+{
+ return (uint8_t)(FMC_OBSTAT >> FMC_OBSTAT_USER_OFFSET);
+}
+
+/*!
+ \brief get OB_DATA in register FMC_OBSTAT
+ \param[in] none
+ \param[out] none
+ \retval ob_data
+*/
+uint16_t ob_data_get(void)
+{
+ return (uint16_t)(FMC_OBSTAT >> FMC_OBSTAT_DATA_OFFSET);
+}
+
+/*!
+ \brief get the FMC option byte write protection (OB_WP) in register FMC_WP
+ \param[in] none
+ \param[out] none
+ \retval OB_WP
+*/
+uint16_t ob_write_protection_get(void)
+{
+ return (uint16_t)(FMC_WP);
+}
+
+/*!
+ \brief get the value of FMC option byte security protection level (PLEVEL) in FMC_OBSTAT register
+ \param[in] none
+ \param[out] none
+ \retval the value of PLEVEL
+*/
+uint32_t ob_obstat_plevel_get(void)
+{
+ return (FMC_OBSTAT & (FMC_OBSTAT_PLEVEL_BIT0 | FMC_OBSTAT_PLEVEL_BIT1));
+}
+
+/* FMC interrupts and flags management functions */
+/*!
+ \brief enable FMC interrupt
+ \param[in] interrupt: the FMC interrupt source
+ \arg FMC_INTEN_END: FMC end of operation interrupt
+ \arg FMC_INTEN_ERR: FMC error interrupt
+ \param[out] none
+ \retval none
+*/
+void fmc_interrupt_enable(uint32_t interrupt)
+{
+ FMC_CTL |= interrupt;
+}
+
+/*!
+ \brief disable FMC interrupt
+ \param[in] interrupt: the FMC interrupt source
+ \arg FMC_INTEN_END: FMC end of operation interrupt
+ \arg FMC_INTEN_ERR: FMC error interrupt
+ \param[out] none
+ \retval none
+*/
+void fmc_interrupt_disable(uint32_t interrupt)
+{
+ FMC_CTL &= ~(uint32_t)interrupt;
+}
+
+/*!
+ \brief get flag set or reset
+ \param[in] flag: check FMC flag
+ only one parameter can be selected which is shown as below:
+ \arg FMC_FLAG_BUSY: FMC busy flag
+ \arg FMC_FLAG_PGERR: FMC programming error flag
+ \arg FMC_FLAG_PGAERR: FMC program alignment error flag
+ \arg FMC_FLAG_WPERR: FMC write protection error flag
+ \arg FMC_FLAG_END: FMC end of programming flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus fmc_flag_get(uint32_t flag)
+{
+ FlagStatus status = RESET;
+
+ if(FMC_STAT & flag){
+ status = SET;
+ }
+ /* return the state of corresponding FMC flag */
+ return status;
+}
+
+/*!
+ \brief clear the FMC pending flag by writing 1
+ \param[in] flag: clear FMC flag
+ one or more parameters can be selected which is shown as below:
+ \arg FMC_FLAG_PGERR: FMC programming error flag
+ \arg FMC_FLAG_PGAERR: FMC program alignment error flag
+ \arg FMC_FLAG_WPERR: FMC write protection error flag
+ \arg FMC_FLAG_END: FMC end of programming flag
+ \param[out] none
+ \retval none
+*/
+void fmc_flag_clear(uint32_t flag)
+{
+ /* clear the flags */
+ FMC_STAT = flag;
+}
+
+/*!
+ \brief get intrrupt flag set or reset
+ \param[in] flag: check FMC flag
+ only one parameter can be selected which is shown as below:
+ \arg FMC_INT_FLAG_PGERR: FMC programming error flag
+ \arg FMC_INT_FLAG_PGAERR: FMC program alignment error flag
+ \arg FMC_INT_FLAG_WPERR: FMC write protection error flag
+ \arg FMC_INT_FLAG_END: FMC end of programming flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus fmc_interrupt_flag_get(uint32_t int_flag)
+{
+ uint32_t intenable = 0U, flagstatus = 0U;
+
+ if(FMC_INT_FLAG_END == int_flag){
+ /* get the interrupt enable bit status */
+ intenable = FMC_CTL & FMC_INTEN_END;
+ /* get the corresponding flag bit status */
+ flagstatus = FMC_STAT & int_flag;
+ if(intenable && flagstatus){
+ return SET;
+ }else{
+ return RESET;
+ }
+ }else{
+ /* get the interrupt enable bit status */
+ intenable = FMC_CTL & FMC_INTEN_ERR;
+ /* get the corresponding flag bit status */
+ flagstatus = FMC_STAT & int_flag;
+ if(intenable && flagstatus){
+ return SET;
+ }else{
+ return RESET;
+ }
+ }
+}
+
+/*!
+ \brief clear the FMC interrupt pending flag by writing 1
+ \param[in] flag: clear FMC flag
+ one or more parameters can be selected which is shown as below:
+ \arg FMC_INT_FLAG_PGERR: FMC programming error flag
+ \arg FMC_INT_FLAG_PGAERR: FMC program alignment error flag
+ \arg FMC_INT_FLAG_WPERR: FMC write protection error flag
+ \arg FMC_INT_FLAG_END: FMC end of programming flag
+ \param[out] none
+ \retval none
+*/
+void fmc_interrupt_flag_clear(uint32_t int_flag)
+{
+ /* clear the flags */
+ FMC_STAT = int_flag;
+}
+
+/*!
+ \brief get the FMC state
+ \param[in] none
+ \param[out] none
+ \retval fmc_state
+*/
+fmc_state_enum fmc_state_get(void)
+{
+ fmc_state_enum fmc_state = FMC_READY;
+
+ if((uint32_t)0x00U != (FMC_STAT & FMC_STAT_BUSY)){
+ fmc_state = FMC_BUSY;
+ }else{
+ if((uint32_t)0x00U != (FMC_STAT & FMC_STAT_WPERR)){
+ fmc_state = FMC_WPERR;
+ }else{
+ if((uint32_t)0x00U != (FMC_STAT & FMC_STAT_PGERR)){
+ fmc_state = FMC_PGERR;
+ }
+ }
+ }
+ /* return the FMC state */
+ return fmc_state;
+}
+
+/*!
+ \brief check whether FMC is ready or not
+ \param[in] timeout: timeout count
+ \param[out] none
+ \retval fmc_state
+*/
+fmc_state_enum fmc_ready_wait(uint32_t timeout)
+{
+ fmc_state_enum fmc_state = FMC_BUSY;
+
+ /* wait for FMC ready */
+ do{
+ /* get FMC state */
+ fmc_state = fmc_state_get();
+ timeout--;
+ }while((FMC_BUSY == fmc_state) && (0U != timeout));
+
+ if(FMC_BUSY == fmc_state){
+ fmc_state = FMC_TOERR;
+ }
+ /* return the FMC state */
+ return fmc_state;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fwdgt.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fwdgt.c
new file mode 100644
index 0000000000..d3daa1fc32
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_fwdgt.c
@@ -0,0 +1,252 @@
+/*!
+ \file gd32e230_fwdgt.c
+ \brief FWDGT driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_fwdgt.h"
+
+/* write value to FWDGT_CTL_CMD bit field */
+#define CTL_CMD(regval) (BITS(0,15) & ((uint32_t)(regval) << 0U)) /*!< write value to FWDGT_CTL_CMD bit field */
+/* write value to FWDGT_RLD_RLD bit field */
+#define RLD_RLD(regval) (BITS(0,11) & ((uint32_t)(regval) << 0U)) /*!< write value to FWDGT_RLD_RLD bit field */
+/* write value to FWDGT_WND_WND bit field */
+#define WND_WND(regval) (BITS(0,11) & ((uint32_t)(regval) << 0U)) /*!< write value to FWDGT_WND_WND bit field */
+
+/*!
+ \brief enable write access to FWDGT_PSC and FWDGT_RLD
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fwdgt_write_enable(void)
+{
+ FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
+}
+
+/*!
+ \brief disable write access to FWDGT_PSC,FWDGT_RLD and FWDGT_WND
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fwdgt_write_disable(void)
+{
+ FWDGT_CTL = FWDGT_WRITEACCESS_DISABLE;
+}
+
+/*!
+ \brief start the free watchdog timer counter
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fwdgt_enable(void)
+{
+ FWDGT_CTL = FWDGT_KEY_ENABLE;
+}
+
+/*!
+ \brief configure the free watchdog timer counter prescaler value
+ \param[in] prescaler_value: specify prescaler value
+ only one parameter can be selected which is shown as below:
+ \arg FWDGT_PSC_DIV4: FWDGT prescaler set to 4
+ \arg FWDGT_PSC_DIV8: FWDGT prescaler set to 8
+ \arg FWDGT_PSC_DIV16: FWDGT prescaler set to 16
+ \arg FWDGT_PSC_DIV32: FWDGT prescaler set to 32
+ \arg FWDGT_PSC_DIV64: FWDGT prescaler set to 64
+ \arg FWDGT_PSC_DIV128: FWDGT prescaler set to 128
+ \arg FWDGT_PSC_DIV256: FWDGT prescaler set to 256
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus fwdgt_prescaler_value_config(uint16_t prescaler_value)
+{
+ uint32_t timeout = FWDGT_PSC_TIMEOUT;
+ uint32_t flag_status = RESET;
+
+ /* enable write access to FWDGT_PSC */
+ FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
+
+ /* wait until the PUD flag to be reset */
+ do{
+ flag_status = FWDGT_STAT & FWDGT_STAT_PUD;
+ }while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
+
+ if ((uint32_t)RESET != flag_status){
+ return ERROR;
+ }
+
+ /* configure FWDGT */
+ FWDGT_PSC = (uint32_t)prescaler_value;
+
+ return SUCCESS;
+}
+
+/*!
+ \brief configure the free watchdog timer counter reload value
+ \param[in] reload_value: specify reload value(0x0000 - 0x0FFF)
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus fwdgt_reload_value_config(uint16_t reload_value)
+{
+ uint32_t timeout = FWDGT_RLD_TIMEOUT;
+ uint32_t flag_status = RESET;
+
+ /* enable write access to FWDGT_RLD */
+ FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
+
+ /* wait until the RUD flag to be reset */
+ do{
+ flag_status = FWDGT_STAT & FWDGT_STAT_RUD;
+ }while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
+
+ if ((uint32_t)RESET != flag_status){
+ return ERROR;
+ }
+
+ FWDGT_RLD = RLD_RLD(reload_value);
+
+ return SUCCESS;
+}
+
+/*!
+ \brief configure the free watchdog timer counter window value
+ \param[in] window_value: specify window value(0x0000 - 0x0FFF)
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus fwdgt_window_value_config(uint16_t window_value)
+{
+ uint32_t time_index = FWDGT_WND_TIMEOUT;
+ uint32_t flag_status = RESET;
+
+ /* enable write access to FWDGT_WND */
+ FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
+
+ /* wait until the WUD flag to be reset */
+ do{
+ flag_status = FWDGT_STAT & FWDGT_STAT_WUD;
+ }while((--time_index > 0U) && ((uint32_t)RESET != flag_status));
+
+ if ((uint32_t)RESET != flag_status){
+ return ERROR;
+ }
+
+ FWDGT_WND = WND_WND(window_value);
+
+ return SUCCESS;
+}
+
+/*!
+ \brief reload the counter of FWDGT
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void fwdgt_counter_reload(void)
+{
+ FWDGT_CTL = FWDGT_KEY_RELOAD;
+}
+
+/*!
+ \brief configure counter reload value, and prescaler divider value
+ \param[in] reload_value: specify reload value(0x0000 - 0x0FFF)
+ \param[in] prescaler_div: FWDGT prescaler value
+ only one parameter can be selected which is shown as below:
+ \arg FWDGT_PSC_DIV4: FWDGT prescaler set to 4
+ \arg FWDGT_PSC_DIV8: FWDGT prescaler set to 8
+ \arg FWDGT_PSC_DIV16: FWDGT prescaler set to 16
+ \arg FWDGT_PSC_DIV32: FWDGT prescaler set to 32
+ \arg FWDGT_PSC_DIV64: FWDGT prescaler set to 64
+ \arg FWDGT_PSC_DIV128: FWDGT prescaler set to 128
+ \arg FWDGT_PSC_DIV256: FWDGT prescaler set to 256
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus fwdgt_config(uint16_t reload_value, uint8_t prescaler_div)
+{
+ uint32_t timeout = FWDGT_PSC_TIMEOUT;
+ uint32_t flag_status = RESET;
+
+ /* enable write access to FWDGT_PSC,and FWDGT_RLD */
+ FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
+
+ /* wait until the PUD flag to be reset */
+ do{
+ flag_status = FWDGT_STAT & FWDGT_STAT_PUD;
+ }while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
+
+ if ((uint32_t)RESET != flag_status){
+ return ERROR;
+ }
+
+ /* configure FWDGT */
+ FWDGT_PSC = (uint32_t)prescaler_div;
+
+ timeout = FWDGT_RLD_TIMEOUT;
+ /* wait until the RUD flag to be reset */
+ do{
+ flag_status = FWDGT_STAT & FWDGT_STAT_RUD;
+ }while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
+
+ if ((uint32_t)RESET != flag_status){
+ return ERROR;
+ }
+
+ FWDGT_RLD = RLD_RLD(reload_value);
+
+ /* reload the counter */
+ FWDGT_CTL = FWDGT_KEY_RELOAD;
+
+ return SUCCESS;
+}
+
+/*!
+ \brief get flag state of FWDGT
+ \param[in] flag: flag to get
+ only one parameter can be selected which is shown as below:
+ \arg FWDGT_FLAG_PUD: a write operation to FWDGT_PSC register is on going
+ \arg FWDGT_FLAG_RUD: a write operation to FWDGT_RLD register is on going
+ \arg FWDGT_FLAG_WUD: a write operation to FWDGT_WND register is on going
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus fwdgt_flag_get(uint16_t flag)
+{
+ if(RESET != (FWDGT_STAT & flag)){
+ return SET;
+ }
+ return RESET;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_gpio.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_gpio.c
new file mode 100644
index 0000000000..7223c98b85
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_gpio.c
@@ -0,0 +1,399 @@
+/*!
+ \file gd32e230_gpio.c
+ \brief GPIO driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_gpio.h"
+
+/*!
+ \brief reset GPIO port
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[out] none
+ \retval none
+*/
+void gpio_deinit(uint32_t gpio_periph)
+{
+ switch(gpio_periph){
+ case GPIOA:
+ /* reset GPIOA */
+ rcu_periph_reset_enable(RCU_GPIOARST);
+ rcu_periph_reset_disable(RCU_GPIOARST);
+ break;
+ case GPIOB:
+ /* reset GPIOB */
+ rcu_periph_reset_enable(RCU_GPIOBRST);
+ rcu_periph_reset_disable(RCU_GPIOBRST);
+ break;
+ case GPIOC:
+ /* reset GPIOC */
+ rcu_periph_reset_enable(RCU_GPIOCRST);
+ rcu_periph_reset_disable(RCU_GPIOCRST);
+ break;
+ case GPIOF:
+ /* reset GPIOF */
+ rcu_periph_reset_enable(RCU_GPIOFRST);
+ rcu_periph_reset_disable(RCU_GPIOFRST);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief set GPIO mode
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] mode: gpio pin mode
+ \arg GPIO_MODE_INPUT: input mode
+ \arg GPIO_MODE_OUTPUT: output mode
+ \arg GPIO_MODE_AF: alternate function mode
+ \arg GPIO_MODE_ANALOG: analog mode
+ \param[in] pull_up_down: gpio pin with pull-up or pull-down resistor
+ \arg GPIO_PUPD_NONE: floating mode, no pull-up and pull-down resistors
+ \arg GPIO_PUPD_PULLUP: with pull-up resistor
+ \arg GPIO_PUPD_PULLDOWN:with pull-down resistor
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval none
+*/
+void gpio_mode_set(uint32_t gpio_periph, uint32_t mode, uint32_t pull_up_down, uint32_t pin)
+{
+ uint16_t i;
+ uint32_t ctl, pupd;
+
+ ctl = GPIO_CTL(gpio_periph);
+ pupd = GPIO_PUD(gpio_periph);
+
+ for(i = 0U;i < 16U;i++){
+ if((1U << i) & pin){
+ /* clear the specified pin mode bits */
+ ctl &= ~GPIO_MODE_MASK(i);
+ /* set the specified pin mode bits */
+ ctl |= GPIO_MODE_SET(i, mode);
+
+ /* clear the specified pin pupd bits */
+ pupd &= ~GPIO_PUPD_MASK(i);
+ /* set the specified pin pupd bits */
+ pupd |= GPIO_PUPD_SET(i, pull_up_down);
+ }
+ }
+
+ GPIO_CTL(gpio_periph) = ctl;
+ GPIO_PUD(gpio_periph) = pupd;
+}
+
+/*!
+ \brief set GPIO output type and speed
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] otype: gpio pin output mode
+ \arg GPIO_OTYPE_PP: push pull mode
+ \arg GPIO_OTYPE_OD: open drain mode
+ \param[in] speed: gpio pin output max speed
+ \arg GPIO_OSPEED_2MHZ: output max speed 2MHz
+ \arg GPIO_OSPEED_10MHZ: output max speed 10MHz
+ \arg GPIO_OSPEED_50MHZ: output max speed 50MHz
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval none
+*/
+void gpio_output_options_set(uint32_t gpio_periph, uint8_t otype, uint32_t speed, uint32_t pin)
+{
+ uint16_t i;
+ uint32_t ospeed;
+
+ if(GPIO_OTYPE_OD == otype){
+ GPIO_OMODE(gpio_periph) |= (uint32_t)pin;
+ }else{
+ GPIO_OMODE(gpio_periph) &= (uint32_t)(~pin);
+ }
+
+ /* get the specified pin output speed bits value */
+ ospeed = GPIO_OSPD(gpio_periph);
+
+ for(i = 0U;i < 16U;i++){
+ if((1U << i) & pin){
+ /* clear the specified pin output speed bits */
+ ospeed &= ~GPIO_OSPEED_MASK(i);
+ /* set the specified pin output speed bits */
+ ospeed |= GPIO_OSPEED_SET(i,speed);
+ }
+ }
+ GPIO_OSPD(gpio_periph) = ospeed;
+}
+
+/*!
+ \brief set GPIO pin bit
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval none
+*/
+void gpio_bit_set(uint32_t gpio_periph, uint32_t pin)
+{
+ GPIO_BOP(gpio_periph) = (uint32_t)pin;
+}
+
+/*!
+ \brief reset GPIO pin bit
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval none
+*/
+void gpio_bit_reset(uint32_t gpio_periph, uint32_t pin)
+{
+ GPIO_BC(gpio_periph) = (uint32_t)pin;
+}
+
+/*!
+ \brief write data to the specified GPIO pin
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[in] bit_value: SET or RESET
+ \arg RESET: clear the port pin
+ \arg SET: set the port pin
+ \param[out] none
+ \retval none
+*/
+void gpio_bit_write(uint32_t gpio_periph, uint32_t pin, bit_status bit_value)
+{
+ if(RESET != bit_value){
+ GPIO_BOP(gpio_periph) = (uint32_t)pin;
+ }else{
+ GPIO_BC(gpio_periph) = (uint32_t)pin;
+ }
+}
+
+/*!
+ \brief write data to the specified GPIO port
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] data: specify the value to be written to the port output control register
+ \param[out] none
+ \retval none
+*/
+void gpio_port_write(uint32_t gpio_periph, uint16_t data)
+{
+ GPIO_OCTL(gpio_periph) = (uint32_t)data;
+}
+
+/*!
+ \brief get GPIO pin input status
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval SET or RESET
+*/
+FlagStatus gpio_input_bit_get(uint32_t gpio_periph, uint32_t pin)
+{
+ if((uint32_t)RESET != (GPIO_ISTAT(gpio_periph)&(pin))){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief get GPIO all pins input status
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[out] none
+ \retval state of GPIO all pins
+*/
+uint16_t gpio_input_port_get(uint32_t gpio_periph)
+{
+ return (uint16_t)GPIO_ISTAT(gpio_periph);
+}
+
+/*!
+ \brief get GPIO pin output status
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval SET or RESET
+*/
+FlagStatus gpio_output_bit_get(uint32_t gpio_periph, uint32_t pin)
+{
+ if((uint32_t)RESET != (GPIO_OCTL(gpio_periph)&(pin))){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief get GPIO all pins output status
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[out] none
+ \retval state of GPIO all pins
+*/
+uint16_t gpio_output_port_get(uint32_t gpio_periph)
+{
+ return (uint16_t)GPIO_OCTL(gpio_periph);
+}
+
+/*!
+ \brief set GPIO alternate function
+ \param[in] gpio_periph: GPIOx(x = A,B,C)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C)
+ \param[in] alt_func_num: GPIO pin af function, please refer to specific device datasheet
+ \arg GPIO_AF_0: TIMER13, TIMER14, TIMER16, SPI0, SPI1, I2S0, CK_OUT, USART0,
+ I2C0, I2C1, SWDIO, SWCLK
+ \arg GPIO_AF_1: USART0, USART1, TIMER2, TIMER14, I2C0, I2C1
+ \arg GPIO_AF_2: TIMER0, TIMER1, TIMER15, TIMER16, I2S0
+ \arg GPIO_AF_3: I2C0, TIMER14
+ \arg GPIO_AF_4(port A,B only): USART1, I2C0, I2C1, TIMER13
+ \arg GPIO_AF_5(port A,B only): TIMER15, TIMER16, I2S0
+ \arg GPIO_AF_6(port A,B only): SPI1
+ \arg GPIO_AF_7(port A,B only): CMP
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval none
+*/
+void gpio_af_set(uint32_t gpio_periph, uint32_t alt_func_num, uint32_t pin)
+{
+ uint16_t i;
+ uint32_t afrl, afrh;
+
+ afrl = GPIO_AFSEL0(gpio_periph);
+ afrh = GPIO_AFSEL1(gpio_periph);
+
+ for(i = 0U;i < 8U;i++){
+ if((1U << i) & pin){
+ /* clear the specified pin alternate function bits */
+ afrl &= ~GPIO_AFR_MASK(i);
+ afrl |= GPIO_AFR_SET(i,alt_func_num);
+ }
+ }
+
+ for(i = 8U;i < 16U;i++){
+ if((1U << i) & pin){
+ /* clear the specified pin alternate function bits */
+ afrh &= ~GPIO_AFR_MASK(i - 8U);
+ afrh |= GPIO_AFR_SET(i - 8U,alt_func_num);
+ }
+ }
+
+ GPIO_AFSEL0(gpio_periph) = afrl;
+ GPIO_AFSEL1(gpio_periph) = afrh;
+}
+
+/*!
+ \brief lock GPIO pin bit
+ \param[in] gpio_periph: GPIOx(x = A,B)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B)
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval none
+*/
+void gpio_pin_lock(uint32_t gpio_periph, uint32_t pin)
+{
+ uint32_t lock = 0x00010000U;
+ lock |= pin;
+
+ /* lock key writing sequence: write 1->write 0->write 1->read 0->read 1 */
+ GPIO_LOCK(gpio_periph) = (uint32_t)lock;
+ GPIO_LOCK(gpio_periph) = (uint32_t)pin;
+ GPIO_LOCK(gpio_periph) = (uint32_t)lock;
+ lock = GPIO_LOCK(gpio_periph);
+ lock = GPIO_LOCK(gpio_periph);
+}
+
+/*!
+ \brief toggle GPIO pin status
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[in] pin: GPIO pin
+ one or more parameters can be selected which are shown as below:
+ \arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
+ \param[out] none
+ \retval none
+*/
+void gpio_bit_toggle(uint32_t gpio_periph, uint32_t pin)
+{
+ GPIO_TG(gpio_periph) = (uint32_t)pin;
+}
+
+/*!
+ \brief toggle GPIO port status
+ \param[in] gpio_periph: GPIOx(x = A,B,C,F)
+ only one parameter can be selected which is shown as below:
+ \arg GPIOx(x = A,B,C,F)
+ \param[out] none
+ \retval none
+*/
+void gpio_port_toggle(uint32_t gpio_periph)
+{
+ GPIO_TG(gpio_periph) = 0x0000FFFFU;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_i2c.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_i2c.c
new file mode 100644
index 0000000000..89fb7f52e9
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_i2c.c
@@ -0,0 +1,797 @@
+/*!
+ \file gd32e230_i2c.c
+ \brief I2C driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_i2c.h"
+
+/* I2C register bit mask */
+#define I2CCLK_MAX ((uint32_t)0x0000007FU) /*!< i2cclk maximum value */
+#define I2CCLK_MIN ((uint32_t)0x00000002U) /*!< i2cclk minimum value */
+#define I2C_FLAG_MASK ((uint32_t)0x0000FFFFU) /*!< i2c flag mask */
+#define I2C_ADDRESS_MASK ((uint32_t)0x000003FFU) /*!< i2c address mask */
+#define I2C_ADDRESS2_MASK ((uint32_t)0x000000FEU) /*!< the second i2c address mask */
+
+/* I2C register bit offset */
+#define STAT1_PECV_OFFSET ((uint32_t)8U) /* bit offset of PECV in I2C_STAT1 */
+
+/*!
+ \brief reset I2C
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_deinit(uint32_t i2c_periph)
+{
+ switch(i2c_periph){
+ case I2C0:
+ /* reset I2C0 */
+ rcu_periph_reset_enable(RCU_I2C0RST);
+ rcu_periph_reset_disable(RCU_I2C0RST);
+ break;
+ case I2C1:
+ /* reset I2C1 */
+ rcu_periph_reset_enable(RCU_I2C1RST);
+ rcu_periph_reset_disable(RCU_I2C1RST);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure I2C clock
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] clkspeed: I2C clock speed, supports standard mode (up to 100 kHz), fast mode (up to 400 kHz)
+ and fast mode plus (up to 1MHz)
+ \param[in] dutycyc: duty cycle in fast mode or fast mode plus
+ only one parameter can be selected which is shown as below:
+ \arg I2C_DTCY_2: T_low/T_high=2
+ \arg I2C_DTCY_16_9: T_low/T_high=16/9
+ \param[out] none
+ \retval none
+*/
+void i2c_clock_config(uint32_t i2c_periph, uint32_t clkspeed, uint32_t dutycyc)
+{
+ uint32_t pclk1, clkc, freq, risetime;
+ uint32_t temp;
+
+ pclk1 = rcu_clock_freq_get(CK_APB1);
+ /* I2C peripheral clock frequency */
+ freq = (uint32_t)(pclk1/1000000U);
+ if(freq >= I2CCLK_MAX){
+ freq = I2CCLK_MAX;
+ }
+ temp = I2C_CTL1(i2c_periph);
+ temp &= ~I2C_CTL1_I2CCLK;
+ temp |= freq;
+
+ I2C_CTL1(i2c_periph) = temp;
+
+ if(100000U >= clkspeed){
+ /* the maximum SCL rise time is 1000ns in standard mode */
+ risetime = (uint32_t)((pclk1/1000000U)+1U);
+ if(risetime >= I2CCLK_MAX){
+ I2C_RT(i2c_periph) = I2CCLK_MAX;
+ }else if(risetime <= I2CCLK_MIN){
+ I2C_RT(i2c_periph) = I2CCLK_MIN;
+ }else{
+ I2C_RT(i2c_periph) = risetime;
+ }
+ clkc = (uint32_t)(pclk1/(clkspeed*2U));
+ if(clkc < 0x04U){
+ /* the CLKC in standard mode minmum value is 4 */
+ clkc = 0x04U;
+ }
+ I2C_CKCFG(i2c_periph) |= (I2C_CKCFG_CLKC & clkc);
+
+ }else if(400000U >= clkspeed){
+ /* the maximum SCL rise time is 300ns in fast mode */
+ I2C_RT(i2c_periph) = (uint32_t)(((freq*(uint32_t)300U)/(uint32_t)1000U)+(uint32_t)1U);
+ if(I2C_DTCY_2 == dutycyc){
+ /* I2C duty cycle is 2 */
+ clkc = (uint32_t)(pclk1/(clkspeed*3U));
+ I2C_CKCFG(i2c_periph) &= ~I2C_CKCFG_DTCY;
+ }else{
+ /* I2C duty cycle is 16/9 */
+ clkc = (uint32_t)(pclk1/(clkspeed*25U));
+ I2C_CKCFG(i2c_periph) |= I2C_CKCFG_DTCY;
+ }
+ if(0U == (clkc & I2C_CKCFG_CLKC)){
+ /* the CLKC in fast mode minmum value is 1 */
+ clkc |= 0x0001U;
+ }
+ I2C_CKCFG(i2c_periph) |= I2C_CKCFG_FAST;
+ I2C_CKCFG(i2c_periph) |= clkc;
+ }else{
+ /* fast mode plus, the maximum SCL rise time is 120ns */
+ I2C_RT(i2c_periph) = (uint32_t)(((freq*(uint32_t)120U)/(uint32_t)1000U)+(uint32_t)1U);
+ if(I2C_DTCY_2 == dutycyc){
+ /* I2C duty cycle is 2 */
+ clkc = (uint32_t)(pclk1/(clkspeed*3U));
+ I2C_CKCFG(i2c_periph) &= ~I2C_CKCFG_DTCY;
+ }else{
+ /* I2C duty cycle is 16/9 */
+ clkc = (uint32_t)(pclk1/(clkspeed*25U));
+ I2C_CKCFG(i2c_periph) |= I2C_CKCFG_DTCY;
+ }
+ /* enable fast mode */
+ I2C_CKCFG(i2c_periph) |= I2C_CKCFG_FAST;
+ I2C_CKCFG(i2c_periph) |= clkc;
+ /* enable I2C fast mode plus */
+ I2C_FMPCFG(i2c_periph) = I2C_FMPCFG_FMPEN;
+ }
+}
+
+/*!
+ \brief configure I2C address
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] mode:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_I2CMODE_ENABLE: I2C mode
+ \arg I2C_SMBUSMODE_ENABLE: SMBus mode
+ \param[in] addformat: 7bits or 10bits
+ only one parameter can be selected which is shown as below:
+ \arg I2C_ADDFORMAT_7BITS: 7bits
+ \arg I2C_ADDFORMAT_10BITS: 10bits
+ \param[in] addr: I2C address
+ \param[out] none
+ \retval none
+*/
+void i2c_mode_addr_config(uint32_t i2c_periph, uint32_t mode, uint32_t addformat, uint32_t addr)
+{
+ /* SMBus/I2C mode selected */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_SMBEN);
+ ctl |= mode;
+ I2C_CTL0(i2c_periph) = ctl;
+ /* configure address */
+ addr = addr & I2C_ADDRESS_MASK;
+ I2C_SADDR0(i2c_periph) = (addformat | addr);
+}
+
+/*!
+ \brief SMBus type selection
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] type:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_SMBUS_DEVICE: device
+ \arg I2C_SMBUS_HOST: host
+ \param[out] none
+ \retval none
+*/
+void i2c_smbus_type_config(uint32_t i2c_periph, uint32_t type)
+{
+ if(I2C_SMBUS_HOST == type){
+ I2C_CTL0(i2c_periph) |= I2C_CTL0_SMBSEL;
+ }else{
+ I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_SMBSEL);
+ }
+}
+
+/*!
+ \brief whether or not to send an ACK
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] ack:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_ACK_ENABLE: ACK will be sent
+ \arg I2C_ACK_DISABLE: ACK will not be sent
+ \param[out] none
+ \retval none
+*/
+void i2c_ack_config(uint32_t i2c_periph, uint32_t ack)
+{
+ if(I2C_ACK_ENABLE == ack){
+ I2C_CTL0(i2c_periph) |= I2C_CTL0_ACKEN;
+ }else{
+ I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_ACKEN);
+ }
+}
+
+/*!
+ \brief configure I2C POAP position
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] pos:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_ACKPOS_CURRENT: whether to send ACK or not for the current
+ \arg I2C_ACKPOS_NEXT: whether to send ACK or not for the next byte
+ \param[out] none
+ \retval none
+*/
+void i2c_ackpos_config(uint32_t i2c_periph, uint32_t pos)
+{
+ /* configure I2C POAP position */
+ if(I2C_ACKPOS_NEXT == pos){
+ I2C_CTL0(i2c_periph) |= I2C_CTL0_POAP;
+ }else{
+ I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_POAP);
+ }
+}
+
+/*!
+ \brief master sends slave address
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] addr: slave address
+ \param[in] trandirection: transmitter or receiver
+ only one parameter can be selected which is shown as below:
+ \arg I2C_TRANSMITTER: transmitter
+ \arg I2C_RECEIVER: receiver
+ \param[out] none
+ \retval none
+*/
+void i2c_master_addressing(uint32_t i2c_periph, uint32_t addr, uint32_t trandirection)
+{
+ /* master is a transmitter or a receiver */
+ if(I2C_TRANSMITTER == trandirection){
+ addr = addr & I2C_TRANSMITTER;
+ }else{
+ addr = addr | I2C_RECEIVER;
+ }
+ /* send slave address */
+ I2C_DATA(i2c_periph) = addr;
+}
+
+/*!
+ \brief enable dual-address mode
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] addr: the second address in dual-address mode
+ \param[out] none
+ \retval none
+*/
+void i2c_dualaddr_enable(uint32_t i2c_periph, uint32_t addr)
+{
+ /* configure address */
+ addr = addr & I2C_ADDRESS2_MASK;
+ I2C_SADDR1(i2c_periph) = (I2C_SADDR1_DUADEN | addr);
+}
+
+/*!
+ \brief disable dual-address mode
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_dualaddr_disable(uint32_t i2c_periph)
+{
+ I2C_SADDR1(i2c_periph) &= ~(I2C_SADDR1_DUADEN);
+}
+
+/*!
+ \brief enable I2C
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_enable(uint32_t i2c_periph)
+{
+ I2C_CTL0(i2c_periph) |= I2C_CTL0_I2CEN;
+}
+
+/*!
+ \brief disable I2C
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_disable(uint32_t i2c_periph)
+{
+ I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_I2CEN);
+}
+
+/*!
+ \brief generate a START condition on I2C bus
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_start_on_bus(uint32_t i2c_periph)
+{
+ I2C_CTL0(i2c_periph) |= I2C_CTL0_START;
+}
+
+/*!
+ \brief generate a STOP condition on I2C bus
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_stop_on_bus(uint32_t i2c_periph)
+{
+ I2C_CTL0(i2c_periph) |= I2C_CTL0_STOP;
+}
+
+/*!
+ \brief I2C transmit data function
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] data: data of transmission
+ \param[out] none
+ \retval none
+*/
+void i2c_data_transmit(uint32_t i2c_periph, uint8_t data)
+{
+ I2C_DATA(i2c_periph) = DATA_TRANS(data);
+}
+
+/*!
+ \brief I2C receive data function
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval data of received
+*/
+uint8_t i2c_data_receive(uint32_t i2c_periph)
+{
+ return (uint8_t)DATA_RECV(I2C_DATA(i2c_periph));
+}
+
+/*!
+ \brief enable I2C DMA mode
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] dmastate:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_DMA_ON: DMA mode enable
+ \arg I2C_DMA_OFF: DMA mode disable
+ \param[out] none
+ \retval none
+*/
+void i2c_dma_enable(uint32_t i2c_periph, uint32_t dmastate)
+{
+ /* configure I2C DMA function */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL1(i2c_periph);
+ ctl &= ~(I2C_CTL1_DMAON);
+ ctl |= dmastate;
+ I2C_CTL1(i2c_periph) = ctl;
+}
+
+/*!
+ \brief configure whether next DMA EOT is DMA last transfer or not
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] dmalast:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_DMALST_ON: next DMA EOT is the last transfer
+ \arg I2C_DMALST_OFF: next DMA EOT is not the last transfer
+ \param[out] none
+ \retval none
+*/
+void i2c_dma_last_transfer_config(uint32_t i2c_periph, uint32_t dmalast)
+{
+ /* configure DMA last transfer */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL1(i2c_periph);
+ ctl &= ~(I2C_CTL1_DMALST);
+ ctl |= dmalast;
+ I2C_CTL1(i2c_periph) = ctl;
+}
+
+/*!
+ \brief whether to stretch SCL low when data is not ready in slave mode
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] stretchpara:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_SCLSTRETCH_ENABLE: SCL stretching is enabled
+ \arg I2C_SCLSTRETCH_DISABLE: SCL stretching is disabled
+ \param[out] none
+ \retval none
+*/
+void i2c_stretch_scl_low_config(uint32_t i2c_periph, uint32_t stretchpara)
+{
+ /* configure I2C SCL strerching enable or disable */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_SS);
+ ctl |= stretchpara;
+ I2C_CTL0(i2c_periph) = ctl;
+}
+
+/*!
+ \brief whether or not to response to a general call
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] gcallpara:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_GCEN_ENABLE: slave will response to a general call
+ \arg I2C_GCEN_DISABLE: slave will not response to a general call
+ \param[out] none
+ \retval none
+*/
+void i2c_slave_response_to_gcall_config(uint32_t i2c_periph, uint32_t gcallpara)
+{
+ /* configure slave response to a general call enable or disable */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_GCEN);
+ ctl |= gcallpara;
+ I2C_CTL0(i2c_periph) = ctl;
+}
+
+/*!
+ \brief software reset I2C
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] sreset:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_SRESET_SET: I2C is under reset
+ \arg I2C_SRESET_RESET: I2C is not under reset
+ \param[out] none
+ \retval none
+*/
+void i2c_software_reset_config(uint32_t i2c_periph, uint32_t sreset)
+{
+ /* modify CTL0 and configure software reset I2C state */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_SRESET);
+ ctl |= sreset;
+ I2C_CTL0(i2c_periph) = ctl;
+}
+
+/*!
+ \brief I2C PEC calculation on or off
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] pecpara:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_PEC_ENABLE: PEC calculation on
+ \arg I2C_PEC_DISABLE: PEC calculation off
+ \param[out] none
+ \retval none
+*/
+void i2c_pec_enable(uint32_t i2c_periph, uint32_t pecstate)
+{
+ /* on/off PEC calculation */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_PECEN);
+ ctl |= pecstate;
+ I2C_CTL0(i2c_periph) = ctl;
+}
+
+/*!
+ \brief I2C whether to transfer PEC value
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] pecpara:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_PECTRANS_ENABLE: transfer PEC
+ \arg I2C_PECTRANS_DISABLE: not transfer PEC
+ \param[out] none
+ \retval none
+*/
+void i2c_pec_transfer_enable(uint32_t i2c_periph, uint32_t pecpara)
+{
+ /* whether to transfer PEC */
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_PECTRANS);
+ ctl |= pecpara;
+ I2C_CTL0(i2c_periph) = ctl;
+}
+
+/*!
+ \brief get packet error checking value
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval PEC value
+*/
+uint8_t i2c_pec_value_get(uint32_t i2c_periph)
+{
+ return (uint8_t)((I2C_STAT1(i2c_periph) & I2C_STAT1_PECV)>>STAT1_PECV_OFFSET);
+}
+
+/*!
+ \brief I2C issue alert through SMBA pin
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] smbuspara:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_SALTSEND_ENABLE: issue alert through SMBA pin
+ \arg I2C_SALTSEND_DISABLE: not issue alert through SMBA pin
+ \param[out] none
+ \retval none
+*/
+void i2c_smbus_issue_alert(uint32_t i2c_periph, uint32_t smbuspara)
+{
+ /* issue alert through SMBA pin configure*/
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_SALT);
+ ctl |= smbuspara;
+ I2C_CTL0(i2c_periph) = ctl;
+}
+
+/*!
+ \brief enable or disable I2C ARP protocol in SMBus switch
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] smbuspara:
+ only one parameter can be selected which is shown as below:
+ \arg I2C_ARP_ENABLE: enable ARP
+ \arg I2C_ARP_DISABLE: disable ARP
+ \param[out] none
+ \retval none
+*/
+void i2c_smbus_arp_enable(uint32_t i2c_periph, uint32_t arpstate)
+{
+ /* enable or disable I2C ARP protocol*/
+ uint32_t ctl = 0U;
+
+ ctl = I2C_CTL0(i2c_periph);
+ ctl &= ~(I2C_CTL0_ARPEN);
+ ctl |= arpstate;
+ I2C_CTL0(i2c_periph) = ctl;
+}
+
+/*!
+ \brief enable SAM_V interface
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_sam_enable(uint32_t i2c_periph)
+{
+ I2C_SAMCS(i2c_periph) |= I2C_SAMCS_SAMEN;
+}
+
+/*!
+ \brief disable SAM_V interface
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_sam_disable(uint32_t i2c_periph)
+{
+ I2C_SAMCS(i2c_periph) &= ~(I2C_SAMCS_SAMEN);
+}
+
+/*!
+ \brief enable SAM_V interface timeout detect
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_sam_timeout_enable(uint32_t i2c_periph)
+{
+ I2C_SAMCS(i2c_periph) |= I2C_SAMCS_STOEN;
+}
+
+/*!
+ \brief disable SAM_V interface timeout detect
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void i2c_sam_timeout_disable(uint32_t i2c_periph)
+{
+ I2C_SAMCS(i2c_periph) &= ~(I2C_SAMCS_STOEN);
+}
+
+/*!
+ \brief check I2C flag is set or not
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] flag: I2C flags, refer to i2c_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg I2C_FLAG_SBSEND: start condition send out
+ \arg I2C_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode
+ \arg I2C_FLAG_BTC: byte transmission finishes
+ \arg I2C_FLAG_ADD10SEND: header of 10-bit address is sent in master mode
+ \arg I2C_FLAG_STPDET: stop condition detected in slave mode
+ \arg I2C_FLAG_RBNE: I2C_DATA is not Empty during receiving
+ \arg I2C_FLAG_TBE: I2C_DATA is empty during transmitting
+ \arg I2C_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus
+ \arg I2C_FLAG_LOSTARB: arbitration lost in master mode
+ \arg I2C_FLAG_AERR: acknowledge error
+ \arg I2C_FLAG_OUERR: overrun or underrun situation occurs in slave mode
+ \arg I2C_FLAG_PECERR: PEC error when receiving data
+ \arg I2C_FLAG_SMBTO: timeout signal in SMBus mode
+ \arg I2C_FLAG_SMBALT: SMBus alert status
+ \arg I2C_FLAG_MASTER: a flag indicating whether I2C block is in master or slave mode
+ \arg I2C_FLAG_I2CBSY: busy flag
+ \arg I2C_FLAG_TR: whether the I2C is a transmitter or a receiver
+ \arg I2C_FLAG_RXGC: general call address (00h) received
+ \arg I2C_FLAG_DEFSMB: default address of SMBus device
+ \arg I2C_FLAG_HSTSMB: SMBus host header detected in slave mode
+ \arg I2C_FLAG_DUMOD: dual flag in slave mode indicating which address is matched in dual-address mode
+ \arg I2C_FLAG_TFF: txframe fall flag
+ \arg I2C_FLAG_TFR: txframe rise flag
+ \arg I2C_FLAG_RFF: rxframe fall flag
+ \arg I2C_FLAG_RFR: rxframe rise flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus i2c_flag_get(uint32_t i2c_periph, i2c_flag_enum flag)
+{
+ if(RESET != (I2C_REG_VAL(i2c_periph, flag) & BIT(I2C_BIT_POS(flag)))){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear I2C flag
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] flag: I2C flags, refer to i2c_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg I2C_FLAG_SMBALT: SMBus Alert status
+ \arg I2C_FLAG_SMBTO: timeout signal in SMBus mode
+ \arg I2C_FLAG_PECERR: PEC error when receiving data
+ \arg I2C_FLAG_OUERR: over-run or under-run situation occurs in slave mode
+ \arg I2C_FLAG_AERR: acknowledge error
+ \arg I2C_FLAG_LOSTARB: arbitration lost in master mode
+ \arg I2C_FLAG_BERR: a bus error
+ \arg I2C_FLAG_ADDSEND: cleared by reading I2C_STAT0 and reading I2C_STAT1
+ \arg I2C_FLAG_TFF: txframe fall flag
+ \arg I2C_FLAG_TFR: txframe rise flag
+ \arg I2C_FLAG_RFF: rxframe fall flag
+ \arg I2C_FLAG_RFR: rxframe rise flag
+ \param[out] none
+ \retval none
+*/
+void i2c_flag_clear(uint32_t i2c_periph, i2c_flag_enum flag)
+{
+ if(I2C_FLAG_ADDSEND == flag){
+ /* read I2C_STAT0 and then read I2C_STAT1 to clear ADDSEND */
+ I2C_STAT0(i2c_periph);
+ I2C_STAT1(i2c_periph);
+ }else{
+ I2C_REG_VAL(i2c_periph, flag) &= ~BIT(I2C_BIT_POS(flag));
+ }
+}
+
+/*!
+ \brief enable I2C interrupt
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] interrupt: I2C interrupts, refer to i2c_interrupt_enum
+ only one parameter can be selected which is shown as below:
+ \arg I2C_INT_ERR: error interrupt enable
+ \arg I2C_INT_EV: event interrupt enable
+ \arg I2C_INT_BUF: buffer interrupt enable
+ \arg I2C_INT_TFF: txframe fall interrupt enable
+ \arg I2C_INT_TFR: txframe rise interrupt enable
+ \arg I2C_INT_RFF: rxframe fall interrupt enable
+ \arg I2C_INT_RFR: rxframe rise interrupt enable
+ \param[out] none
+ \retval none
+*/
+void i2c_interrupt_enable(uint32_t i2c_periph, i2c_interrupt_enum interrupt)
+{
+ I2C_REG_VAL(i2c_periph, interrupt) |= BIT(I2C_BIT_POS(interrupt));
+}
+
+/*!
+ \brief disable I2C interrupt
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] interrupt: I2C interrupts, refer to i2c_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg I2C_INT_ERR: error interrupt enable
+ \arg I2C_INT_EV: event interrupt enable
+ \arg I2C_INT_BUF: buffer interrupt enable
+ \arg I2C_INT_TFF: txframe fall interrupt enable
+ \arg I2C_INT_TFR: txframe rise interrupt enable
+ \arg I2C_INT_RFF: rxframe fall interrupt enable
+ \arg I2C_INT_RFR: rxframe rise interrupt enable
+ \param[out] none
+ \retval none
+*/
+void i2c_interrupt_disable(uint32_t i2c_periph, i2c_interrupt_enum interrupt)
+{
+ I2C_REG_VAL(i2c_periph, interrupt) &= ~BIT(I2C_BIT_POS(interrupt));
+}
+
+/*!
+ \brief check I2C interrupt flag
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] int_flag: I2C interrupt flags, refer to i2c_interrupt_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg I2C_INT_FLAG_SBSEND: start condition sent out in master mode interrupt flag
+ \arg I2C_INT_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode interrupt flag
+ \arg I2C_INT_FLAG_BTC: byte transmission finishes
+ \arg I2C_INT_FLAG_ADD10SEND: header of 10-bit address is sent in master mode interrupt flag
+ \arg I2C_INT_FLAG_STPDET: etop condition detected in slave mode interrupt flag
+ \arg I2C_INT_FLAG_RBNE: I2C_DATA is not Empty during receiving interrupt flag
+ \arg I2C_INT_FLAG_TBE: I2C_DATA is empty during transmitting interrupt flag
+ \arg I2C_INT_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag
+ \arg I2C_INT_FLAG_LOSTARB: arbitration lost in master mode interrupt flag
+ \arg I2C_INT_FLAG_AERR: acknowledge error interrupt flag
+ \arg I2C_INT_FLAG_OUERR: over-run or under-run situation occurs in slave mode interrupt flag
+ \arg I2C_INT_FLAG_PECERR: PEC error when receiving data interrupt flag
+ \arg I2C_INT_FLAG_SMBTO: timeout signal in SMBus mode interrupt flag
+ \arg I2C_INT_FLAG_SMBALT: SMBus Alert status interrupt flag
+ \arg I2C_INT_FLAG_TFF: txframe fall interrupt flag
+ \arg I2C_INT_FLAG_TFR: txframe rise interrupt flag
+ \arg I2C_INT_FLAG_RFF: rxframe fall interrupt flag
+ \arg I2C_INT_FLAG_RFR: rxframe rise interrupt flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus i2c_interrupt_flag_get(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag)
+{
+ uint32_t intenable = 0U, flagstatus = 0U, bufie;
+
+ /* check BUFIE */
+ bufie = I2C_CTL1(i2c_periph)&I2C_CTL1_BUFIE;
+
+ /* get the interrupt enable bit status */
+ intenable = (I2C_REG_VAL(i2c_periph, int_flag) & BIT(I2C_BIT_POS(int_flag)));
+ /* get the corresponding flag bit status */
+ flagstatus = (I2C_REG_VAL2(i2c_periph, int_flag) & BIT(I2C_BIT_POS2(int_flag)));
+
+ if((I2C_INT_FLAG_RBNE == int_flag) || (I2C_INT_FLAG_TBE == int_flag)){
+ if(intenable && bufie){
+ intenable = 1U;
+ }else{
+ intenable = 0U;
+ }
+ }
+ if((0U != flagstatus) && (0U != intenable)){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear I2C interrupt flag
+ \param[in] i2c_periph: I2Cx(x=0,1)
+ \param[in] intflag: I2C interrupt flags, refer to i2c_interrupt_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg I2C_INT_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode interrupt flag
+ \arg I2C_INT_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag
+ \arg I2C_INT_FLAG_LOSTARB: arbitration lost in master mode interrupt flag
+ \arg I2C_INT_FLAG_AERR: acknowledge error interrupt flag
+ \arg I2C_INT_FLAG_OUERR: over-run or under-run situation occurs in slave mode interrupt flag
+ \arg I2C_INT_FLAG_PECERR: PEC error when receiving data interrupt flag
+ \arg I2C_INT_FLAG_SMBTO: timeout signal in SMBus mode interrupt flag
+ \arg I2C_INT_FLAG_SMBALT: SMBus Alert status interrupt flag
+ \arg I2C_INT_FLAG_TFF: txframe fall interrupt flag
+ \arg I2C_INT_FLAG_TFR: txframe rise interrupt flag
+ \arg I2C_INT_FLAG_RFF: rxframe fall interrupt flag
+ \arg I2C_INT_FLAG_RFR: rxframe rise interrupt flag
+ \param[out] none
+ \retval none
+*/
+void i2c_interrupt_flag_clear(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag)
+{
+ if(I2C_INT_FLAG_ADDSEND == int_flag){
+ /* read I2C_STAT0 and then read I2C_STAT1 to clear ADDSEND */
+ I2C_STAT0(i2c_periph);
+ I2C_STAT1(i2c_periph);
+ }else{
+ I2C_REG_VAL2(i2c_periph, int_flag) &= ~BIT(I2C_BIT_POS2(int_flag));
+ }
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_misc.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_misc.c
new file mode 100644
index 0000000000..eac0dc0958
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_misc.c
@@ -0,0 +1,142 @@
+/*!
+ \file gd32e230_misc.c
+ \brief MISC driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_misc.h"
+
+/*!
+ \brief enable NVIC request
+ \param[in] nvic_irq: the NVIC interrupt request, detailed in IRQn_Type
+ \param[in] nvic_irq_priority: the priority needed to set (0-3)
+ \param[out] none
+ \retval none
+*/
+void nvic_irq_enable(uint8_t nvic_irq,
+ uint8_t nvic_irq_priority)
+{
+ /* set the priority and enable the selected IRQ */
+ NVIC_SetPriority((IRQn_Type)nvic_irq, (uint32_t)nvic_irq_priority);
+ NVIC_EnableIRQ((IRQn_Type)nvic_irq);
+}
+
+/*!
+ \brief disable NVIC request
+ \param[in] nvic_irq: the NVIC interrupt request, detailed in IRQn_Type
+ \param[out] none
+ \retval none
+*/
+void nvic_irq_disable(uint8_t nvic_irq)
+{
+ /* disable the selected IRQ.*/
+ NVIC_DisableIRQ((IRQn_Type)nvic_irq);
+}
+
+/* */
+/*!
+ \brief initiates a system reset request to reset the MCU
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void nvic_system_reset(void)
+{
+ NVIC_SystemReset();
+}
+
+/*!
+ \brief set the NVIC vector table base address
+ \param[in] nvic_vict_tab: the RAM or FLASH base address
+ \arg NVIC_VECTTAB_RAM: RAM base address
+ \arg NVIC_VECTTAB_FLASH: Flash base address
+ \param[in] offset: Vector Table offset
+ \param[out] none
+ \retval none
+*/
+void nvic_vector_table_set(uint32_t nvic_vict_tab, uint32_t offset)
+{
+ SCB->VTOR = nvic_vict_tab | (offset & NVIC_VECTTAB_OFFSET_MASK);
+}
+
+/*!
+ \brief set the state of the low power mode
+ \param[in] lowpower_mode: the low power mode state
+ \arg SCB_LPM_SLEEP_EXIT_ISR: if chose this para, the system always enter low power
+ mode by exiting from ISR
+ \arg SCB_LPM_DEEPSLEEP: if chose this para, the system will enter the DEEPSLEEP mode
+ \arg SCB_LPM_WAKE_BY_ALL_INT: if chose this para, the lowpower mode can be woke up
+ by all the enable and disable interrupts
+ \param[out] none
+ \retval none
+*/
+void system_lowpower_set(uint8_t lowpower_mode)
+{
+ SCB->SCR |= (uint32_t)lowpower_mode;
+}
+
+/*!
+ \brief reset the state of the low power mode
+ \param[in] lowpower_mode: the low power mode state
+ \arg SCB_LPM_SLEEP_EXIT_ISR: if chose this para, the system will exit low power
+ mode by exiting from ISR
+ \arg SCB_LPM_DEEPSLEEP: if chose this para, the system will enter the SLEEP mode
+ \arg SCB_LPM_WAKE_BY_ALL_INT: if chose this para, the lowpower mode only can be
+ woke up by the enable interrupts
+ \param[out] none
+ \retval none
+*/
+void system_lowpower_reset(uint8_t lowpower_mode)
+{
+ SCB->SCR &= (~(uint32_t)lowpower_mode);
+}
+
+/*!
+ \brief set the systick clock source
+ \param[in] systick_clksource: the systick clock source needed to choose
+ \arg SYSTICK_CLKSOURCE_HCLK: systick clock source is from HCLK
+ \arg SYSTICK_CLKSOURCE_HCLK_DIV8: systick clock source is from HCLK/8
+ \param[out] none
+ \retval none
+*/
+
+void systick_clksource_set(uint32_t systick_clksource)
+{
+ if(SYSTICK_CLKSOURCE_HCLK == systick_clksource ){
+ /* set the systick clock source from HCLK */
+ SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
+ }else{
+ /* set the systick clock source from HCLK/8 */
+ SysTick->CTRL &= SYSTICK_CLKSOURCE_HCLK_DIV8;
+ }
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_pmu.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_pmu.c
new file mode 100644
index 0000000000..53e8a2e521
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_pmu.c
@@ -0,0 +1,301 @@
+/*!
+ \file gd32e230_pmu.c
+ \brief PMU driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_pmu.h"
+
+/*!
+ \brief reset PMU register
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void pmu_deinit(void)
+{
+ /* reset PMU */
+ rcu_periph_reset_enable(RCU_PMURST);
+ rcu_periph_reset_disable(RCU_PMURST);
+}
+
+/*!
+ \brief select low voltage detector threshold
+ \param[in] lvdt_n:
+ only one parameter can be selected which is shown as below:
+ \arg PMU_LVDT_0: voltage threshold is 2.1V
+ \arg PMU_LVDT_1: voltage threshold is 2.3V
+ \arg PMU_LVDT_2: voltage threshold is 2.4V
+ \arg PMU_LVDT_3: voltage threshold is 2.6V
+ \arg PMU_LVDT_4: voltage threshold is 2.7V
+ \arg PMU_LVDT_5: voltage threshold is 2.9V
+ \arg PMU_LVDT_6: voltage threshold is 3.0V
+ \arg PMU_LVDT_7: voltage threshold is 3.1V
+ \param[out] none
+ \retval none
+*/
+void pmu_lvd_select(uint32_t lvdt_n)
+{
+ /* disable LVD */
+ PMU_CTL &= ~PMU_CTL_LVDEN;
+ /* clear LVDT bits */
+ PMU_CTL &= ~PMU_CTL_LVDT;
+ /* set LVDT bits according to lvdt_n */
+ PMU_CTL |= lvdt_n;
+ /* enable LVD */
+ PMU_CTL |= PMU_CTL_LVDEN;
+}
+
+/*!
+ \brief select LDO output voltage
+ these bits set by software when the main PLL closed
+ \param[in] ldo_output:
+ only one parameter can be selected which is shown as below:
+ \arg PMU_LDOVS_LOW: LDO output voltage low mode
+ \arg PMU_LDOVS_HIGH: LDO output voltage high mode
+ \param[out] none
+ \retval none
+*/
+void pmu_ldo_output_select(uint32_t ldo_output)
+{
+ PMU_CTL &= ~PMU_CTL_LDOVS;
+ PMU_CTL |= ldo_output;
+}
+
+/*!
+ \brief disable PMU lvd
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void pmu_lvd_disable(void)
+{
+ /* disable LVD */
+ PMU_CTL &= ~PMU_CTL_LVDEN;
+}
+
+/*!
+ \brief PMU work at sleep mode
+ \param[in] sleepmodecmd:
+ only one parameter can be selected which is shown as below:
+ \arg WFI_CMD: use WFI command
+ \arg WFE_CMD: use WFE command
+ \param[out] none
+ \retval none
+*/
+void pmu_to_sleepmode(uint8_t sleepmodecmd)
+{
+ /* clear sleepdeep bit of Cortex-M23 system control register */
+ SCB->SCR &= ~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
+
+ /* select WFI or WFE command to enter sleep mode */
+ if(WFI_CMD == sleepmodecmd){
+ __WFI();
+ }else{
+ __WFE();
+ }
+}
+
+/*!
+ \brief PMU work at deepsleep mode
+ \param[in] ldo:
+ only one parameter can be selected which is shown as below:
+ \arg PMU_LDO_NORMAL: LDO operates normally when pmu enter deepsleep mode
+ \arg PMU_LDO_LOWPOWER: LDO work at low power mode when pmu enter deepsleep mode
+ \param[in] deepsleepmodecmd:
+ only one parameter can be selected which is shown as below:
+ \arg WFI_CMD: use WFI command
+ \arg WFE_CMD: use WFE command
+ \param[out] none
+ \retval none
+*/
+void pmu_to_deepsleepmode(uint32_t ldo,uint8_t deepsleepmodecmd)
+{
+ static uint32_t reg_snap[ 3 ];
+ /* clear stbmod and ldolp bits */
+ PMU_CTL &= ~((uint32_t)(PMU_CTL_STBMOD | PMU_CTL_LDOLP));
+
+ /* set ldolp bit according to pmu_ldo */
+ PMU_CTL |= ldo;
+
+ /* set sleepdeep bit of Cortex-M23 system control register */
+ SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
+
+ reg_snap[ 0 ] = REG32( 0xE000E010U );
+ reg_snap[ 1 ] = REG32( 0xE000E100U );
+ reg_snap[ 2 ] = REG32( 0xE000E104U );
+
+ REG32( 0xE000E010U ) &= 0x00010004U;
+ REG32( 0xE000E180U ) = 0XF7FFEF19U;
+ REG32( 0xE000E184U ) = 0XFFFFFFFFU;
+
+ /* select WFI or WFE command to enter deepsleep mode */
+ if(WFI_CMD == deepsleepmodecmd){
+ __WFI();
+ }else{
+ __SEV();
+ __WFE();
+ __WFE();
+ }
+
+ REG32( 0xE000E010U ) = reg_snap[ 0 ] ;
+ REG32( 0xE000E100U ) = reg_snap[ 1 ] ;
+ REG32( 0xE000E104U ) = reg_snap[ 2 ] ;
+
+ /* reset sleepdeep bit of Cortex-M23 system control register */
+ SCB->SCR &= ~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
+}
+
+/*!
+ \brief pmu work at standby mode
+ \param[in] standbymodecmd:
+ only one parameter can be selected which is shown as below:
+ \arg WFI_CMD: use WFI command
+ \arg WFE_CMD: use WFE command
+ \param[out] none
+ \retval none
+*/
+void pmu_to_standbymode(uint8_t standbymodecmd)
+{
+ /* set sleepdeep bit of Cortex-M23 system control register */
+ SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
+
+ /* set stbmod bit */
+ PMU_CTL |= PMU_CTL_STBMOD;
+
+ /* reset wakeup flag */
+ PMU_CTL |= PMU_CTL_WURST;
+
+ /* select WFI or WFE command to enter standby mode */
+ if(WFI_CMD == standbymodecmd){
+ __WFI();
+ }else{
+ __WFE();
+ }
+}
+
+/*!
+ \brief enable wakeup pin
+ \param[in] wakeup_pin:
+ one or more parameters can be selected which are shown as below:
+ \arg PMU_WAKEUP_PIN0: WKUP Pin 0 (PA0)
+ \arg PMU_WAKEUP_PIN1: WKUP Pin 1 (PC13)
+ \arg PMU_WAKEUP_PIN5: WKUP Pin 5 (PB5)
+ \arg PMU_WAKEUP_PIN6: WKUP Pin 6 (PB15)
+ \param[out] none
+ \retval none
+*/
+void pmu_wakeup_pin_enable(uint32_t wakeup_pin)
+{
+ PMU_CS |= wakeup_pin;
+}
+
+/*!
+ \brief disable wakeup pin
+ \param[in] wakeup_pin:
+ one or more parameters can be selected which are shown as below:
+ \arg PMU_WAKEUP_PIN0: WKUP Pin 0 (PA0)
+ \arg PMU_WAKEUP_PIN1: WKUP Pin 1 (PC13)
+ \arg PMU_WAKEUP_PIN5: WKUP Pin 5 (PB5)
+ \arg PMU_WAKEUP_PIN6: WKUP Pin 6 (PB15)
+ \param[out] none
+ \retval none
+*/
+void pmu_wakeup_pin_disable(uint32_t wakeup_pin)
+{
+ PMU_CS &= ~(wakeup_pin);
+}
+
+/*!
+ \brief enable backup domain write
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void pmu_backup_write_enable(void)
+{
+ PMU_CTL |= PMU_CTL_BKPWEN;
+}
+
+/*!
+ \brief disable backup domain write
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void pmu_backup_write_disable(void)
+{
+ PMU_CTL &= ~PMU_CTL_BKPWEN;
+}
+
+/*!
+ \brief clear flag bit
+ \param[in] flag_clear:
+ one or more parameters can be selected which are shown as below:
+ \arg PMU_FLAG_RESET_WAKEUP: reset wakeup flag
+ \arg PMU_FLAG_RESET_STANDBY: reset standby flag
+ \param[out] none
+ \retval none
+*/
+void pmu_flag_clear(uint32_t flag_clear)
+{
+ if(RESET != (flag_clear & PMU_FLAG_RESET_WAKEUP)){
+ /* reset wakeup flag */
+ PMU_CTL |= PMU_CTL_WURST;
+ }
+ if(RESET != (flag_clear & PMU_FLAG_RESET_STANDBY)){
+ /* reset standby flag */
+ PMU_CTL |= PMU_CTL_STBRST;
+ }
+}
+
+/*!
+ \brief get flag state
+ \param[in] flag:
+ only one parameter can be selected which is shown as below:
+ \arg PMU_FLAG_WAKEUP: wakeup flag
+ \arg PMU_FLAG_STANDBY: standby flag
+ \arg PMU_FLAG_LVD: lvd flag
+ \param[out] none
+ \retval FlagStatus SET or RESET
+*/
+FlagStatus pmu_flag_get(uint32_t flag)
+{
+ FlagStatus ret_status = RESET;
+
+ if(PMU_CS & flag){
+ ret_status = SET;
+ }
+
+ return ret_status;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rcu.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rcu.c
new file mode 100644
index 0000000000..9483fa68f9
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rcu.c
@@ -0,0 +1,1034 @@
+/*!
+ \file gd32e230_rcu.c
+ \brief RCU driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_rcu.h"
+
+/* define clock source */
+#define SEL_IRC8M 0x00U
+#define SEL_HXTAL 0x01U
+#define SEL_PLL 0x02U
+
+/* define startup timeout count */
+#define OSC_STARTUP_TIMEOUT ((uint32_t)0x000FFFFFU)
+#define LXTAL_STARTUP_TIMEOUT ((uint32_t)0x03FFFFFFU)
+
+/*!
+ \brief deinitialize the RCU
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rcu_deinit(void)
+{
+ /* enable IRC8M */
+ RCU_CTL0 |= RCU_CTL0_IRC8MEN;
+ while(0U == (RCU_CTL0 & RCU_CTL0_IRC8MSTB)){
+ }
+ /* reset RCU */
+ RCU_CFG0 &= ~(RCU_CFG0_SCS | RCU_CFG0_AHBPSC | RCU_CFG0_APB1PSC | RCU_CFG0_APB2PSC |\
+ RCU_CFG0_ADCPSC | RCU_CFG0_CKOUTSEL | RCU_CFG0_CKOUTDIV | RCU_CFG0_PLLDV);
+ RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF | RCU_CFG0_PLLMF4 | RCU_CFG0_PLLDV);
+ RCU_CTL0 &= ~(RCU_CTL0_HXTALEN | RCU_CTL0_CKMEN | RCU_CTL0_PLLEN | RCU_CTL0_HXTALBPS);
+ RCU_CFG1 &= ~(RCU_CFG1_PREDV);
+ RCU_CFG2 &= ~(RCU_CFG2_USART0SEL | RCU_CFG2_ADCSEL);
+ RCU_CFG2 &= ~RCU_CFG2_IRC28MDIV;
+ RCU_CFG2 &= ~RCU_CFG2_ADCPSC2;
+ RCU_CTL1 &= ~RCU_CTL1_IRC28MEN;
+ RCU_INT = 0x00000000U;
+}
+
+/*!
+ \brief enable the peripherals clock
+ \param[in] periph: RCU peripherals, refer to rcu_periph_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_GPIOx (x=A,B,C,F): GPIO ports clock
+ \arg RCU_DMA: DMA clock
+ \arg RCU_CRC: CRC clock
+ \arg RCU_CFGCMP: CFGCMP clock
+ \arg RCU_ADC: ADC clock
+ \arg RCU_TIMERx (x=0,2,5,13,14,15,16): TIMER clock
+ \arg RCU_SPIx (x=0,1): SPI clock
+ \arg RCU_USARTx (x=0,1): USART clock
+ \arg RCU_WWDGT: WWDGT clock
+ \arg RCU_I2Cx (x=0,1): I2C clock
+ \arg RCU_PMU: PMU clock
+ \arg RCU_RTC: RTC clock
+ \arg RCU_DBGMCU: DBGMCU clock
+ \param[out] none
+ \retval none
+*/
+void rcu_periph_clock_enable(rcu_periph_enum periph)
+{
+ RCU_REG_VAL(periph) |= BIT(RCU_BIT_POS(periph));
+}
+
+/*!
+ \brief disable the peripherals clock
+ \param[in] periph: RCU peripherals, refer to rcu_periph_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_GPIOx (x=A,B,C,F): GPIO ports clock
+ \arg RCU_DMA: DMA clock
+ \arg RCU_CRC: CRC clock
+ \arg RCU_CFGCMP: CFGCMP clock
+ \arg RCU_ADC: ADC clock
+ \arg RCU_TIMERx (x=0,2,5,13,14,15,16): TIMER clock
+ \arg RCU_SPIx (x=0,1): SPI clock
+ \arg RCU_USARTx (x=0,1): USART clock
+ \arg RCU_WWDGT: WWDGT clock
+ \arg RCU_I2Cx (x=0,1): I2C clock
+ \arg RCU_PMU: PMU clock
+ \arg RCU_RTC: RTC clock
+ \arg RCU_DBGMCU: DBGMCU clock
+ \param[out] none
+ \retval none
+*/
+void rcu_periph_clock_disable(rcu_periph_enum periph)
+{
+ RCU_REG_VAL(periph) &= ~BIT(RCU_BIT_POS(periph));
+}
+
+/*!
+ \brief enable the peripherals clock when sleep mode
+ \param[in] periph: RCU peripherals, refer to rcu_periph_sleep_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_FMC_SLP: FMC clock
+ \arg RCU_SRAM_SLP: SRAM clock
+ \param[out] none
+ \retval none
+*/
+void rcu_periph_clock_sleep_enable(rcu_periph_sleep_enum periph)
+{
+ RCU_REG_VAL(periph) |= BIT(RCU_BIT_POS(periph));
+}
+
+/*!
+ \brief disable the peripherals clock when sleep mode
+ \param[in] periph: RCU peripherals, refer to rcu_periph_sleep_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_FMC_SLP: FMC clock
+ \arg RCU_SRAM_SLP: SRAM clock
+ \param[out] none
+ \retval none
+*/
+void rcu_periph_clock_sleep_disable(rcu_periph_sleep_enum periph)
+{
+ RCU_REG_VAL(periph) &= ~BIT(RCU_BIT_POS(periph));
+}
+/*!
+ \brief reset the peripherals
+ \param[in] periph_reset: RCU peripherals reset, refer to rcu_periph_reset_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_GPIOxRST (x=A,B,C,F): reset GPIO ports
+ \arg RCU_CFGCMPRST: reset CFGCMP
+ \arg RCU_ADCRST: reset ADC
+ \arg RCU_TIMERxRST (x=0,2,5,13,14,15,16): reset TIMER
+ \arg RCU_SPIxRST (x=0,1): reset SPI
+ \arg RCU_USARTxRST (x=0,1): reset USART
+ \arg RCU_WWDGTRST: reset WWDGT
+ \arg RCU_I2CxRST (x=0,1): reset I2C
+ \arg RCU_PMURST: reset PMU
+ \param[out] none
+ \retval none
+*/
+void rcu_periph_reset_enable(rcu_periph_reset_enum periph_reset)
+{
+ RCU_REG_VAL(periph_reset) |= BIT(RCU_BIT_POS(periph_reset));
+}
+
+/*!
+ \brief disable reset the peripheral
+ \param[in] periph_reset: RCU peripherals reset, refer to rcu_periph_reset_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_GPIOxRST (x=A,B,C,F): reset GPIO ports
+ \arg RCU_CFGCMPRST: reset CFGCMP
+ \arg RCU_ADCRST: reset ADC
+ \arg RCU_TIMERxRST (x=0,2,5,13,14,15,16): reset TIMER
+ \arg RCU_SPIxRST (x=0,1): reset SPI
+ \arg RCU_USARTxRST (x=0,1): reset USART
+ \arg RCU_WWDGTRST: reset WWDGT
+ \arg RCU_I2CxRST (x=0,1): reset I2C
+ \arg RCU_PMURST: reset PMU
+ \param[out] none
+ \retval none
+*/
+void rcu_periph_reset_disable(rcu_periph_reset_enum periph_reset)
+{
+ RCU_REG_VAL(periph_reset) &= ~BIT(RCU_BIT_POS(periph_reset));
+}
+
+/*!
+ \brief reset the BKP
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rcu_bkp_reset_enable(void)
+{
+ RCU_BDCTL |= RCU_BDCTL_BKPRST;
+}
+
+/*!
+ \brief disable the BKP reset
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rcu_bkp_reset_disable(void)
+{
+ RCU_BDCTL &= ~RCU_BDCTL_BKPRST;
+}
+
+/*!
+ \brief configure the system clock source
+ \param[in] ck_sys: system clock source select
+ only one parameter can be selected which is shown as below:
+ \arg RCU_CKSYSSRC_IRC8M: select CK_IRC8M as the CK_SYS source
+ \arg RCU_CKSYSSRC_HXTAL: select CK_HXTAL as the CK_SYS source
+ \arg RCU_CKSYSSRC_PLL: select CK_PLL as the CK_SYS source
+ \param[out] none
+ \retval none
+*/
+void rcu_system_clock_source_config(uint32_t ck_sys)
+{
+ uint32_t cksys_source = 0U;
+ cksys_source = RCU_CFG0;
+ /* reset the SCS bits and set according to ck_sys */
+ cksys_source &= ~RCU_CFG0_SCS;
+ RCU_CFG0 = (ck_sys | cksys_source);
+}
+
+/*!
+ \brief get the system clock source
+ \param[in] none
+ \param[out] none
+ \retval which clock is selected as CK_SYS source
+ \arg RCU_SCSS_IRC8M: select CK_IRC8M as the CK_SYS source
+ \arg RCU_SCSS_HXTAL: select CK_HXTAL as the CK_SYS source
+ \arg RCU_SCSS_PLL: select CK_PLL as the CK_SYS source
+*/
+uint32_t rcu_system_clock_source_get(void)
+{
+ return (RCU_CFG0 & RCU_CFG0_SCSS);
+}
+
+/*!
+ \brief configure the AHB clock prescaler selection
+ \param[in] ck_ahb: AHB clock prescaler selection
+ only one parameter can be selected which is shown as below:
+ \arg RCU_AHB_CKSYS_DIVx, x=1, 2, 4, 8, 16, 64, 128, 256, 512
+ \param[out] none
+ \retval none
+*/
+void rcu_ahb_clock_config(uint32_t ck_ahb)
+{
+ uint32_t ahbpsc = 0U;
+ ahbpsc = RCU_CFG0;
+ /* reset the AHBPSC bits and set according to ck_ahb */
+ ahbpsc &= ~RCU_CFG0_AHBPSC;
+ RCU_CFG0 = (ck_ahb | ahbpsc);
+}
+
+/*!
+ \brief configure the APB1 clock prescaler selection
+ \param[in] ck_apb1: APB1 clock prescaler selection
+ only one parameter can be selected which is shown as below:
+ \arg RCU_APB1_CKAHB_DIV1: select CK_AHB as CK_APB1
+ \arg RCU_APB1_CKAHB_DIV2: select CK_AHB/2 as CK_APB1
+ \arg RCU_APB1_CKAHB_DIV4: select CK_AHB/4 as CK_APB1
+ \arg RCU_APB1_CKAHB_DIV8: select CK_AHB/8 as CK_APB1
+ \arg RCU_APB1_CKAHB_DIV16: select CK_AHB/16 as CK_APB1
+ \param[out] none
+ \retval none
+*/
+void rcu_apb1_clock_config(uint32_t ck_apb1)
+{
+ uint32_t apb1psc = 0U;
+ apb1psc = RCU_CFG0;
+ /* reset the APB1PSC and set according to ck_apb1 */
+ apb1psc &= ~RCU_CFG0_APB1PSC;
+ RCU_CFG0 = (ck_apb1 | apb1psc);
+}
+
+/*!
+ \brief configure the APB2 clock prescaler selection
+ \param[in] ck_apb2: APB2 clock prescaler selection
+ only one parameter can be selected which is shown as below:
+ \arg RCU_APB2_CKAHB_DIV1: select CK_AHB as CK_APB2
+ \arg RCU_APB2_CKAHB_DIV2: select CK_AHB/2 as CK_APB2
+ \arg RCU_APB2_CKAHB_DIV4: select CK_AHB/4 as CK_APB2
+ \arg RCU_APB2_CKAHB_DIV8: select CK_AHB/8 as CK_APB2
+ \arg RCU_APB2_CKAHB_DIV16: select CK_AHB/16 as CK_APB2
+ \param[out] none
+ \retval none
+*/
+void rcu_apb2_clock_config(uint32_t ck_apb2)
+{
+ uint32_t apb2psc = 0U;
+ apb2psc = RCU_CFG0;
+ /* reset the APB2PSC and set according to ck_apb2 */
+ apb2psc &= ~RCU_CFG0_APB2PSC;
+ RCU_CFG0 = (ck_apb2 | apb2psc);
+}
+
+/*!
+ \brief configure the ADC clock prescaler selection
+ \param[in] ck_adc: ADC clock prescaler selection, refer to rcu_adc_clock_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_ADCCK_IRC28M_DIV2: select CK_IRC28M/2 as CK_ADC
+ \arg RCU_ADCCK_IRC28M: select CK_IRC28M as CK_ADC
+ \arg RCU_ADCCK_APB2_DIV2: select CK_APB2/2 as CK_ADC
+ \arg RCU_ADCCK_AHB_DIV3: select CK_AHB/3 as CK_ADC
+ \arg RCU_ADCCK_APB2_DIV4: select CK_APB2/4 as CK_ADC
+ \arg RCU_ADCCK_AHB_DIV5: select CK_AHB/5 as CK_ADC
+ \arg RCU_ADCCK_APB2_DIV6: select CK_APB2/6 as CK_ADC
+ \arg RCU_ADCCK_AHB_DIV7: select CK_AHB/7 as CK_ADC
+ \arg RCU_ADCCK_APB2_DIV8: select CK_APB2/8 as CK_ADC
+ \arg RCU_ADCCK_AHB_DIV9: select CK_AHB/9 as CK_ADC
+ \param[out] none
+ \retval none
+*/
+void rcu_adc_clock_config(rcu_adc_clock_enum ck_adc)
+{
+ /* reset the ADCPSC, ADCSEL, IRC28MDIV bits */
+ RCU_CFG0 &= ~RCU_CFG0_ADCPSC;
+ RCU_CFG2 &= ~(RCU_CFG2_ADCSEL | RCU_CFG2_IRC28MDIV | RCU_CFG2_ADCPSC2);
+
+ /* set the ADC clock according to ck_adc */
+ switch(ck_adc){
+ case RCU_ADCCK_IRC28M_DIV2:
+ RCU_CFG2 &= ~RCU_CFG2_IRC28MDIV;
+ RCU_CFG2 &= ~RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_IRC28M:
+ RCU_CFG2 |= RCU_CFG2_IRC28MDIV;
+ RCU_CFG2 &= ~RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_APB2_DIV2:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV2;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_AHB_DIV3:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV2;
+ RCU_CFG2 |= RCU_CFG2_ADCPSC2;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_APB2_DIV4:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV4;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_AHB_DIV5:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV4;
+ RCU_CFG2 |= RCU_CFG2_ADCPSC2;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_APB2_DIV6:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV6;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_AHB_DIV7:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV6;
+ RCU_CFG2 |= RCU_CFG2_ADCPSC2;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_APB2_DIV8:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV8;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ case RCU_ADCCK_AHB_DIV9:
+ RCU_CFG0 |= RCU_ADC_CKAPB2_DIV8;
+ RCU_CFG2 |= RCU_CFG2_ADCPSC2;
+ RCU_CFG2 |= RCU_CFG2_ADCSEL;
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure the CK_OUT clock source and divider
+ \param[in] ckout_src: CK_OUT clock source selection
+ only one parameter can be selected which is shown as below:
+ \arg RCU_CKOUTSRC_NONE: no clock selected
+ \arg RCU_CKOUTSRC_IRC28M: IRC28M selected
+ \arg RCU_CKOUTSRC_IRC40K: IRC40K selected
+ \arg RCU_CKOUTSRC_LXTAL: LXTAL selected
+ \arg RCU_CKOUTSRC_CKSYS: CKSYS selected
+ \arg RCU_CKOUTSRC_IRC8M: IRC8M selected
+ \arg RCU_CKOUTSRC_HXTAL: HXTAL selected
+ \arg RCU_CKOUTSRC_CKPLL_DIV1: CK_PLL selected
+ \arg RCU_CKOUTSRC_CKPLL_DIV2: CK_PLL/2 selected
+ \param[in] ckout_div: CK_OUT divider
+ \arg RCU_CKOUT_DIVx(x=1,2,4,8,16,32,64,128): CK_OUT is divided by x
+ \param[out] none
+ \retval none
+*/
+void rcu_ckout_config(uint32_t ckout_src, uint32_t ckout_div)
+{
+ uint32_t ckout = 0U;
+ ckout = RCU_CFG0;
+ /* reset the CKOUTSEL, CKOUTDIV and PLLDV bits and set according to ckout_src and ckout_div */
+ ckout &= ~(RCU_CFG0_CKOUTSEL | RCU_CFG0_CKOUTDIV | RCU_CFG0_PLLDV);
+ RCU_CFG0 = (ckout | ckout_src | ckout_div);
+}
+
+/*!
+ \brief configure the PLL clock source selection and PLL multiply factor
+ \param[in] pll_src: PLL clock source selection
+ only one parameter can be selected which is shown as below:
+ \arg RCU_PLLSRC_IRC8M_DIV2: select CK_IRC8M/2 as PLL source clock
+ \arg RCU_PLLSRC_HXTAL: select HXTAL as PLL source clock
+ \param[in] pll_mul: PLL multiply factor
+ only one parameter can be selected which is shown as below:
+ \arg RCU_PLL_MULx(x=2..32): PLL source clock * x
+ \param[out] none
+ \retval none
+*/
+void rcu_pll_config(uint32_t pll_src, uint32_t pll_mul)
+{
+ RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF);
+ RCU_CFG0 |= (pll_src | pll_mul);
+}
+
+/*!
+ \brief configure the USART clock source selection
+ \param[in] ck_usart: USART clock source selection
+ only one parameter can be selected which is shown as below:
+ \arg RCU_USART0SRC_CKAPB2: CK_USART0 select CK_APB2
+ \arg RCU_USART0SRC_CKSYS: CK_USART0 select CK_SYS
+ \arg RCU_USART0SRC_LXTAL: CK_USART0 select CK_LXTAL
+ \arg RCU_USART0SRC_IRC8M: CK_USART0 select CK_IRC8M
+ \param[out] none
+ \retval none
+*/
+void rcu_usart_clock_config(uint32_t ck_usart)
+{
+ /* reset the USART0SEL bits and set according to ck_usart */
+ RCU_CFG2 &= ~RCU_CFG2_USART0SEL;
+ RCU_CFG2 |= ck_usart;
+}
+
+/*!
+ \brief configure the RTC clock source selection
+ \param[in] rtc_clock_source: RTC clock source selection
+ only one parameter can be selected which is shown as below:
+ \arg RCU_RTCSRC_NONE: no clock selected
+ \arg RCU_RTCSRC_LXTAL: CK_LXTAL selected as RTC source clock
+ \arg RCU_RTCSRC_IRC40K: CK_IRC40K selected as RTC source clock
+ \arg RCU_RTCSRC_HXTAL_DIV32: CK_HXTAL/32 selected as RTC source clock
+ \param[out] none
+ \retval none
+*/
+void rcu_rtc_clock_config(uint32_t rtc_clock_source)
+{
+ /* reset the RTCSRC bits and set according to rtc_clock_source */
+ RCU_BDCTL &= ~RCU_BDCTL_RTCSRC;
+ RCU_BDCTL |= rtc_clock_source;
+}
+
+/*!
+ \brief configure the HXTAL divider used as input of PLL
+ \param[in] hxtal_prediv: HXTAL divider used as input of PLL
+ only one parameter can be selected which is shown as below:
+ \arg RCU_PLL_PREDVx(x=1..16): HXTAL divided x used as input of PLL
+ \param[out] none
+ \retval none
+*/
+void rcu_hxtal_prediv_config(uint32_t hxtal_prediv)
+{
+ uint32_t prediv = 0U;
+ prediv = RCU_CFG1;
+ /* reset the PREDV bits and set according to hxtal_prediv */
+ prediv &= ~RCU_CFG1_PREDV;
+ RCU_CFG1 = (prediv | hxtal_prediv);
+}
+
+/*!
+ \brief configure the LXTAL drive capability
+ \param[in] lxtal_dricap: drive capability of LXTAL
+ only one parameter can be selected which is shown as below:
+ \arg RCU_LXTAL_LOWDRI: lower driving capability
+ \arg RCU_LXTAL_MED_LOWDRI: medium low driving capability
+ \arg RCU_LXTAL_MED_HIGHDRI: medium high driving capability
+ \arg RCU_LXTAL_HIGHDRI: higher driving capability
+ \param[out] none
+ \retval none
+*/
+void rcu_lxtal_drive_capability_config(uint32_t lxtal_dricap)
+{
+ /* reset the LXTALDRI bits and set according to lxtal_dricap */
+ RCU_BDCTL &= ~RCU_BDCTL_LXTALDRI;
+ RCU_BDCTL |= lxtal_dricap;
+}
+
+/*!
+ \brief get the clock stabilization and periphral reset flags
+ \param[in] flag: the clock stabilization and periphral reset flags, refer to rcu_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_FLAG_IRC40KSTB: IRC40K stabilization flag
+ \arg RCU_FLAG_LXTALSTB: LXTAL stabilization flag
+ \arg RCU_FLAG_IRC8MSTB: IRC8M stabilization flag
+ \arg RCU_FLAG_HXTALSTB: HXTAL stabilization flag
+ \arg RCU_FLAG_PLLSTB: PLL stabilization flag
+ \arg RCU_FLAG_IRC28MSTB: IRC28M stabilization flag
+ \arg RCU_FLAG_V12RST: V12 domain power reset flag
+ \arg RCU_FLAG_OBLRST: option byte loader reset flag
+ \arg RCU_FLAG_EPRST: external pin reset flag
+ \arg RCU_FLAG_PORRST: power reset flag
+ \arg RCU_FLAG_SWRST: software reset flag
+ \arg RCU_FLAG_FWDGTRST: free watchdog timer reset flag
+ \arg RCU_FLAG_WWDGTRST: window watchdog timer reset flag
+ \arg RCU_FLAG_LPRST: low-power reset flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus rcu_flag_get(rcu_flag_enum flag)
+{
+ if(RESET != (RCU_REG_VAL(flag) & BIT(RCU_BIT_POS(flag)))){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear the reset flag
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rcu_all_reset_flag_clear(void)
+{
+ RCU_RSTSCK |= RCU_RSTSCK_RSTFC;
+}
+
+/*!
+ \brief get the clock stabilization interrupt and ckm flags
+ \param[in] int_flag: interrupt and ckm flags, refer to rcu_int_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_INT_FLAG_IRC40KSTB: IRC40K stabilization interrupt flag
+ \arg RCU_INT_FLAG_LXTALSTB: LXTAL stabilization interrupt flag
+ \arg RCU_INT_FLAG_IRC8MSTB: IRC8M stabilization interrupt flag
+ \arg RCU_INT_FLAG_HXTALSTB: HXTAL stabilization interrupt flag
+ \arg RCU_INT_FLAG_PLLSTB: PLL stabilization interrupt flag
+ \arg RCU_INT_FLAG_IRC28MSTB: IRC28M stabilization interrupt flag
+ \arg RCU_INT_FLAG_CKM: HXTAL clock stuck interrupt flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus rcu_interrupt_flag_get(rcu_int_flag_enum int_flag)
+{
+ if(RESET != (RCU_REG_VAL(int_flag) & BIT(RCU_BIT_POS(int_flag)))){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear the interrupt flags
+ \param[in] int_flag_clear: clock stabilization and stuck interrupt flags clear, refer to rcu_int_flag_clear_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_INT_FLAG_IRC40KSTB_CLR: IRC40K stabilization interrupt flag clear
+ \arg RCU_INT_FLAG_LXTALSTB_CLR: LXTAL stabilization interrupt flag clear
+ \arg RCU_INT_FLAG_IRC8MSTB_CLR: IRC8M stabilization interrupt flag clear
+ \arg RCU_INT_FLAG_HXTALSTB_CLR: HXTAL stabilization interrupt flag clear
+ \arg RCU_INT_FLAG_PLLSTB_CLR: PLL stabilization interrupt flag clear
+ \arg RCU_INT_FLAG_IRC28MSTB_CLR: IRC28M stabilization interrupt flag clear
+ \arg RCU_INT_FLAG_CKM_CLR: clock stuck interrupt flag clear
+ \param[out] none
+ \retval none
+*/
+void rcu_interrupt_flag_clear(rcu_int_flag_clear_enum int_flag_clear)
+{
+ RCU_REG_VAL(int_flag_clear) |= BIT(RCU_BIT_POS(int_flag_clear));
+}
+
+/*!
+ \brief enable the stabilization interrupt
+ \param[in] stab_int: clock stabilization interrupt, refer to rcu_int_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_INT_IRC40KSTB: IRC40K stabilization interrupt enable
+ \arg RCU_INT_LXTALSTB: LXTAL stabilization interrupt enable
+ \arg RCU_INT_IRC8MSTB: IRC8M stabilization interrupt enable
+ \arg RCU_INT_HXTALSTB: HXTAL stabilization interrupt enable
+ \arg RCU_INT_PLLSTB: PLL stabilization interrupt enable
+ \arg RCU_INT_IRC28MSTB: IRC28M stabilization interrupt enable
+ \param[out] none
+ \retval none
+*/
+void rcu_interrupt_enable(rcu_int_enum stab_int)
+{
+ RCU_REG_VAL(stab_int) |= BIT(RCU_BIT_POS(stab_int));
+}
+
+
+/*!
+ \brief disable the stabilization interrupt
+ \param[in] stab_int: clock stabilization interrupt, refer to rcu_int_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_INT_IRC40KSTB: IRC40K stabilization interrupt disable
+ \arg RCU_INT_LXTALSTB: LXTAL stabilization interrupt disable
+ \arg RCU_INT_IRC8MSTB: IRC8M stabilization interrupt disable
+ \arg RCU_INT_HXTALSTB: HXTAL stabilization interrupt disable
+ \arg RCU_INT_PLLSTB: PLL stabilization interrupt disable
+ \arg RCU_INT_IRC28MSTB: IRC28M stabilization interrupt disable
+ \param[out] none
+ \retval none
+*/
+void rcu_interrupt_disable(rcu_int_enum stab_int)
+{
+ RCU_REG_VAL(stab_int) &= ~BIT(RCU_BIT_POS(stab_int));
+}
+
+/*!
+ \brief wait until oscillator stabilization flags is SET
+ \param[in] osci: oscillator types, refer to rcu_osci_type_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_HXTAL: HXTAL
+ \arg RCU_LXTAL: LXTAL
+ \arg RCU_IRC8M: IRC8M
+ \arg RCU_IRC28M: IRC28M
+ \arg RCU_IRC40K: IRC40K
+ \arg RCU_PLL_CK: PLL
+ \param[out] none
+ \retval ErrStatus: SUCCESS or ERROR
+*/
+ErrStatus rcu_osci_stab_wait(rcu_osci_type_enum osci)
+{
+ uint32_t stb_cnt = 0U;
+ ErrStatus reval = ERROR;
+ FlagStatus osci_stat = RESET;
+ switch(osci){
+ case RCU_HXTAL:
+ /* wait until HXTAL is stabilization and osci_stat is not more than timeout */
+ while((RESET == osci_stat) && (HXTAL_STARTUP_TIMEOUT != stb_cnt)){
+ osci_stat = rcu_flag_get(RCU_FLAG_HXTALSTB);
+ stb_cnt++;
+ }
+ /* check whether flag is set or not */
+ if(RESET != rcu_flag_get(RCU_FLAG_HXTALSTB)){
+ reval = SUCCESS;
+ }
+ break;
+
+ /* wait LXTAL stable */
+ case RCU_LXTAL:
+ while((RESET == osci_stat) && (LXTAL_STARTUP_TIMEOUT != stb_cnt)){
+ osci_stat = rcu_flag_get(RCU_FLAG_LXTALSTB);
+ stb_cnt++;
+ }
+ /* check whether flag is set or not */
+ if(RESET != rcu_flag_get(RCU_FLAG_LXTALSTB)){
+ reval = SUCCESS;
+ }
+ break;
+
+ /* wait IRC8M stable */
+ case RCU_IRC8M:
+ while((RESET == osci_stat) && (IRC8M_STARTUP_TIMEOUT != stb_cnt)){
+ osci_stat = rcu_flag_get(RCU_FLAG_IRC8MSTB);
+ stb_cnt++;
+ }
+ /* check whether flag is set or not */
+ if(RESET != rcu_flag_get(RCU_FLAG_IRC8MSTB)){
+ reval = SUCCESS;
+ }
+ break;
+
+ /* wait IRC28M stable */
+ case RCU_IRC28M:
+ while((RESET == osci_stat) && (OSC_STARTUP_TIMEOUT != stb_cnt)){
+ osci_stat = rcu_flag_get(RCU_FLAG_IRC28MSTB);
+ stb_cnt++;
+ }
+ /* check whether flag is set or not */
+ if(RESET != rcu_flag_get(RCU_FLAG_IRC28MSTB)){
+ reval = SUCCESS;
+ }
+ break;
+
+ /* wait IRC40K stable */
+ case RCU_IRC40K:
+ while((RESET == osci_stat) && (OSC_STARTUP_TIMEOUT != stb_cnt)){
+ osci_stat = rcu_flag_get(RCU_FLAG_IRC40KSTB);
+ stb_cnt++;
+ }
+ /* check whether flag is set or not */
+ if(RESET != rcu_flag_get(RCU_FLAG_IRC40KSTB)){
+ reval = SUCCESS;
+ }
+ break;
+
+ /* wait PLL stable */
+ case RCU_PLL_CK:
+ while((RESET == osci_stat) && (OSC_STARTUP_TIMEOUT != stb_cnt)){
+ osci_stat = rcu_flag_get(RCU_FLAG_PLLSTB);
+ stb_cnt++;
+ }
+ /* check whether flag is set or not */
+ if(RESET != rcu_flag_get(RCU_FLAG_PLLSTB)){
+ reval = SUCCESS;
+ }
+ break;
+
+ default:
+ break;
+ }
+ /* return value */
+ return reval;
+}
+
+/*!
+ \brief turn on the oscillator
+ \param[in] osci: oscillator types, refer to rcu_osci_type_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_HXTAL: HXTAL
+ \arg RCU_LXTAL: LXTAL
+ \arg RCU_IRC8M: IRC8M
+ \arg RCU_IRC28M: IRC28M
+ \arg RCU_IRC40K: IRC40K
+ \arg RCU_PLL_CK: PLL
+ \param[out] none
+ \retval none
+*/
+void rcu_osci_on(rcu_osci_type_enum osci)
+{
+ RCU_REG_VAL(osci) |= BIT(RCU_BIT_POS(osci));
+}
+
+/*!
+ \brief turn off the oscillator
+ \param[in] osci: oscillator types, refer to rcu_osci_type_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_HXTAL: HXTAL
+ \arg RCU_LXTAL: LXTAL
+ \arg RCU_IRC8M: IRC8M
+ \arg RCU_IRC28M: IRC28M
+ \arg RCU_IRC40K: IRC40K
+ \arg RCU_PLL_CK: PLL
+ \param[out] none
+ \retval none
+*/
+void rcu_osci_off(rcu_osci_type_enum osci)
+{
+ RCU_REG_VAL(osci) &= ~BIT(RCU_BIT_POS(osci));
+}
+
+/*!
+ \brief enable the oscillator bypass mode, HXTALEN or LXTALEN must be reset before it
+ \param[in] osci: oscillator types, refer to rcu_osci_type_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_HXTAL: HXTAL
+ \arg RCU_LXTAL: LXTAL
+ \param[out] none
+ \retval none
+*/
+void rcu_osci_bypass_mode_enable(rcu_osci_type_enum osci)
+{
+ uint32_t reg;
+ switch(osci){
+ case RCU_HXTAL:
+ /* HXTALEN must be reset before enable the oscillator bypass mode */
+ reg = RCU_CTL0;
+ RCU_CTL0 &= ~RCU_CTL0_HXTALEN;
+ RCU_CTL0 = (reg | RCU_CTL0_HXTALBPS);
+ break;
+ case RCU_LXTAL:
+ /* LXTALEN must be reset before enable the oscillator bypass mode */
+ reg = RCU_BDCTL;
+ RCU_BDCTL &= ~RCU_BDCTL_LXTALEN;
+ RCU_BDCTL = (reg | RCU_BDCTL_LXTALBPS);
+ break;
+ case RCU_IRC8M:
+ case RCU_IRC28M:
+ case RCU_IRC40K:
+ case RCU_PLL_CK:
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief disable the oscillator bypass mode, HXTALEN or LXTALEN must be reset before it
+ \param[in] osci: oscillator types, refer to rcu_osci_type_enum
+ only one parameter can be selected which is shown as below:
+ \arg RCU_HXTAL: HXTAL
+ \arg RCU_LXTAL: LXTAL
+ \param[out] none
+ \retval none
+*/
+void rcu_osci_bypass_mode_disable(rcu_osci_type_enum osci)
+{
+ uint32_t reg;
+ switch(osci){
+ case RCU_HXTAL:
+ /* HXTALEN must be reset before disable the oscillator bypass mode */
+ reg = RCU_CTL0;
+ RCU_CTL0 &= ~RCU_CTL0_HXTALEN;
+ RCU_CTL0 = (reg & (~RCU_CTL0_HXTALBPS));
+ break;
+ case RCU_LXTAL:
+ /* LXTALEN must be reset before disable the oscillator bypass mode */
+ reg = RCU_BDCTL;
+ RCU_BDCTL &= ~RCU_BDCTL_LXTALEN;
+ RCU_BDCTL = (reg & (~RCU_BDCTL_LXTALBPS));
+ break;
+ case RCU_IRC8M:
+ case RCU_IRC28M:
+ case RCU_IRC40K:
+ case RCU_PLL_CK:
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief enable the HXTAL clock monitor
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rcu_hxtal_clock_monitor_enable(void)
+{
+ RCU_CTL0 |= RCU_CTL0_CKMEN;
+}
+
+/*!
+ \brief disable the HXTAL clock monitor
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rcu_hxtal_clock_monitor_disable(void)
+{
+ RCU_CTL0 &= ~RCU_CTL0_CKMEN;
+}
+
+/*!
+ \brief set the IRC8M adjust value
+ \param[in] irc8m_adjval: IRC8M adjust value, must be between 0 and 0x1F
+ \param[out] none
+ \retval none
+*/
+void rcu_irc8m_adjust_value_set(uint8_t irc8m_adjval)
+{
+ uint32_t adjust = 0U;
+ adjust = RCU_CTL0;
+ /* reset the IRC8MADJ bits and set according to irc8m_adjval */
+ adjust &= ~RCU_CTL0_IRC8MADJ;
+ RCU_CTL0 = (adjust | (((uint32_t)irc8m_adjval)<<3));
+}
+
+/*!
+ \brief set the IRC28M adjust value
+ \param[in] irc28m_adjval: IRC28M adjust value, must be between 0 and 0x1F
+ \param[out] none
+ \retval none
+*/
+void rcu_irc28m_adjust_value_set(uint8_t irc28m_adjval)
+{
+ uint32_t adjust = 0U;
+ adjust = RCU_CTL1;
+ /* reset the IRC28MADJ bits and set according to irc28m_adjval */
+ adjust &= ~RCU_CTL1_IRC28MADJ;
+ RCU_CTL1 = (adjust | (((uint32_t)irc28m_adjval)<<3));
+}
+
+/*!
+ \brief unlock the voltage key
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rcu_voltage_key_unlock(void)
+{
+ /* reset the KEY bits and set 0x1A2B3C4D */
+ RCU_VKEY &= ~RCU_VKEY_KEY;
+ RCU_VKEY |= RCU_VKEY_UNLOCK;
+}
+
+/*!
+ \brief set voltage in deep sleep mode
+ \param[in] dsvol: deep sleep mode voltage
+ only one parameter can be selected which is shown as below:
+ \arg RCU_DEEPSLEEP_V_1_0: the core voltage is 1.0V
+ \arg RCU_DEEPSLEEP_V_0_9: the core voltage is 0.9V
+ \arg RCU_DEEPSLEEP_V_0_8: the core voltage is 0.8V
+ \arg RCU_DEEPSLEEP_V_1_2: the core voltage is 1.2V
+ \param[out] none
+ \retval none
+*/
+void rcu_deepsleep_voltage_set(uint32_t dsvol)
+{
+ /* reset the DSLPVS bits and set according to dsvol */
+ RCU_DSV &= ~RCU_DSV_DSLPVS;
+ RCU_DSV |= dsvol;
+}
+
+/*!
+ \brief get the system clock, bus and peripheral clock frequency
+ \param[in] clock: the clock frequency which to get
+ only one parameter can be selected which is shown as below:
+ \arg CK_SYS: system clock frequency
+ \arg CK_AHB: AHB clock frequency
+ \arg CK_APB1: APB1 clock frequency
+ \arg CK_APB2: APB2 clock frequency
+ \arg CK_ADC: ADC clock frequency
+ \arg CK_USART: USART0 clock frequency
+ \param[out] none
+ \retval clock frequency of system, AHB, APB1, APB2, ADC or USRAT0
+*/
+uint32_t rcu_clock_freq_get(rcu_clock_freq_enum clock)
+{
+ uint32_t sws = 0U, adcps = 0U, adcps2 = 0U, ck_freq = 0U;
+ uint32_t cksys_freq = 0U, ahb_freq = 0U, apb1_freq = 0U, apb2_freq = 0U;
+ uint32_t adc_freq = 0U, usart_freq = 0U;
+ uint32_t pllmf = 0U, pllmf4 = 0U, pllsel = 0U, prediv = 0U, idx = 0U, clk_exp = 0U;
+ /* exponent of AHB, APB1 and APB2 clock divider */
+ const uint8_t ahb_exp[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+ const uint8_t apb1_exp[8] = {0, 0, 0, 0, 1, 2, 3, 4};
+ const uint8_t apb2_exp[8] = {0, 0, 0, 0, 1, 2, 3, 4};
+
+ sws = GET_BITS(RCU_CFG0, 2, 3);
+ switch(sws){
+ /* IRC8M is selected as CK_SYS */
+ case SEL_IRC8M:
+ cksys_freq = IRC8M_VALUE;
+ break;
+ /* HXTAL is selected as CK_SYS */
+ case SEL_HXTAL:
+ cksys_freq = HXTAL_VALUE;
+ break;
+ /* PLL is selected as CK_SYS */
+ case SEL_PLL:
+ /* get the value of PLLMF[3:0] */
+ pllmf = GET_BITS(RCU_CFG0, 18, 21);
+ pllmf4 = GET_BITS(RCU_CFG0, 27, 27);
+ /* high 16 bits */
+ if(1U == pllmf4){
+ pllmf += 17U;
+ }else if(15U == pllmf){
+ pllmf = 16U;
+ }else{
+ pllmf += 2U;
+ }
+
+ /* PLL clock source selection, HXTAL or IRC8M/2 */
+ pllsel = GET_BITS(RCU_CFG0, 16, 16);
+ if(0U != pllsel){
+ prediv = (GET_BITS(RCU_CFG1, 0, 3) + 1U);
+ cksys_freq = (HXTAL_VALUE / prediv) * pllmf;
+ }else{
+ cksys_freq = (IRC8M_VALUE >> 1) * pllmf;
+ }
+ break;
+ /* IRC8M is selected as CK_SYS */
+ default:
+ cksys_freq = IRC8M_VALUE;
+ break;
+ }
+ /* calculate AHB clock frequency */
+ idx = GET_BITS(RCU_CFG0, 4, 7);
+ clk_exp = ahb_exp[idx];
+ ahb_freq = cksys_freq >> clk_exp;
+
+ /* calculate APB1 clock frequency */
+ idx = GET_BITS(RCU_CFG0, 8, 10);
+ clk_exp = apb1_exp[idx];
+ apb1_freq = ahb_freq >> clk_exp;
+
+ /* calculate APB2 clock frequency */
+ idx = GET_BITS(RCU_CFG0, 11, 13);
+ clk_exp = apb2_exp[idx];
+ apb2_freq = ahb_freq >> clk_exp;
+
+ /* return the clocks frequency */
+ switch(clock){
+ case CK_SYS:
+ ck_freq = cksys_freq;
+ break;
+ case CK_AHB:
+ ck_freq = ahb_freq;
+ break;
+ case CK_APB1:
+ ck_freq = apb1_freq;
+ break;
+ case CK_APB2:
+ ck_freq = apb2_freq;
+ break;
+ case CK_ADC:
+ /* calculate ADC clock frequency */
+ if(RCU_ADCSRC_AHB_APB2DIV != (RCU_CFG2 & RCU_CFG2_ADCSEL)){
+ if(RCU_ADC_IRC28M_DIV1 != (RCU_CFG2 & RCU_CFG2_IRC28MDIV)){
+ adc_freq = IRC28M_VALUE >> 1;
+ }else{
+ adc_freq = IRC28M_VALUE;
+ }
+ }else{
+ /* ADC clock select CK_APB2 divided by 2/4/6/8 or CK_AHB divided by 3/5/7/9 */
+ adcps = GET_BITS(RCU_CFG0, 14, 15);
+ adcps2 = GET_BITS(RCU_CFG2, 31, 31);
+ if(0U != adcps2){
+ /* ADC clock select CK_AHB divided by 3/5/7/9 */
+ adc_freq = ahb_freq / (adcps + 1U);
+ }else{
+ /* ADC clock select CK_APB2 divided by 2/4/6/8 */
+ adc_freq = apb2_freq / adcps;
+ }
+ }
+ ck_freq = adc_freq;
+ break;
+ case CK_USART:
+ /* calculate USART0 clock frequency */
+ if(RCU_USART0SRC_CKAPB2 == (RCU_CFG2 & RCU_CFG2_USART0SEL)){
+ usart_freq = apb2_freq;
+ }else if(RCU_USART0SRC_CKSYS == (RCU_CFG2 & RCU_CFG2_USART0SEL)){
+ usart_freq = cksys_freq;
+ }else if(RCU_USART0SRC_LXTAL == (RCU_CFG2 & RCU_CFG2_USART0SEL)){
+ usart_freq = LXTAL_VALUE;
+ }else if(RCU_USART0SRC_IRC8M == (RCU_CFG2 & RCU_CFG2_USART0SEL)){
+ usart_freq = IRC8M_VALUE;
+ }else{
+ }
+ ck_freq = usart_freq;
+ break;
+ default:
+ break;
+ }
+ return ck_freq;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rtc.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rtc.c
new file mode 100644
index 0000000000..546afa781e
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_rtc.c
@@ -0,0 +1,965 @@
+/*!
+ \file gd32e230_rtc.c
+ \brief RTC driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_rtc.h"
+
+/*!
+ \brief reset most of the RTC registers
+ \param[in] none
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_deinit(void)
+{
+ ErrStatus error_status = ERROR;
+
+ /* RTC_TAMP register is not under write protection */
+ RTC_TAMP = RTC_REGISTER_RESET;
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* reset RTC_CTL register, this can be done without the init mode */
+ RTC_CTL &= RTC_REGISTER_RESET;
+
+ /* enter init mode */
+ error_status = rtc_init_mode_enter();
+
+ if(ERROR != error_status){
+ /* before reset RTC_TIME and RTC_DATE, BPSHAD bit in RTC_CTL should be reset as the condition.
+ in order to read calendar from shadow register, not the real registers being reset */
+ RTC_TIME = RTC_REGISTER_RESET;
+ RTC_DATE = RTC_DATE_RESET;
+
+ RTC_PSC = RTC_PSC_RESET;
+
+ /* reset RTC_STAT register, also exit init mode.
+ at the same time, RTC_STAT_SOPF bit is reset, as the condition to reset RTC_SHIFTCTL register later */
+ RTC_STAT = RTC_STAT_RESET;
+
+ /* to write RTC_ALRM0SS register, ALRM0EN bit in RTC_CTL register should be reset as the condition */
+ RTC_ALRM0TD = RTC_REGISTER_RESET;
+ RTC_ALRM0SS = RTC_REGISTER_RESET;
+
+ /* reset RTC_SHIFTCTL and RTC_HRFC register, this can be done without the init mode */
+ RTC_SHIFTCTL = RTC_REGISTER_RESET;
+ RTC_HRFC = RTC_REGISTER_RESET;
+
+ error_status = rtc_register_sync_wait();
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+
+ return error_status;
+}
+
+/*!
+ \brief initialize RTC registers
+ \param[in] rtc_initpara_struct: pointer to a rtc_parameter_struct structure which contains
+ parameters for initialization of the rtc peripheral
+ members of the structure and the member values are shown as below:
+ rtc_year: 0x0 - 0x99(BCD format)
+ rtc_month: RTC_JAN, RTC_FEB, RTC_MAR, RTC_APR, RTC_MAY, RTC_JUN,
+ RTC_JUL, RTC_AUG, RTC_SEP, RTC_OCT, RTC_NOV, RTC_DEC
+ rtc_date: 0x1 - 0x31(BCD format)
+ rtc_day_of_week: RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY
+ RTC_FRIDAY, RTC_SATURDAY, RTC_SUNDAY
+ rtc_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format chose
+ rtc_minute: 0x0 - 0x59(BCD format)
+ rtc_second: 0x0 - 0x59(BCD format)
+ rtc_factor_asyn: 0x0 - 0x7F
+ rtc_factor_syn: 0x0 - 0x7FFF
+ rtc_am_pm: RTC_AM, RTC_PM
+ rtc_display_format: RTC_24HOUR, RTC_12HOUR
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_init(rtc_parameter_struct* rtc_initpara_struct)
+{
+ ErrStatus error_status = ERROR;
+ uint32_t reg_time = 0x00U, reg_date = 0x00U;
+
+ reg_date = (DATE_YR(rtc_initpara_struct->rtc_year) | \
+ DATE_DOW(rtc_initpara_struct->rtc_day_of_week) | \
+ DATE_MON(rtc_initpara_struct->rtc_month) | \
+ DATE_DAY(rtc_initpara_struct->rtc_date));
+
+ reg_time = (rtc_initpara_struct->rtc_am_pm| \
+ TIME_HR(rtc_initpara_struct->rtc_hour) | \
+ TIME_MN(rtc_initpara_struct->rtc_minute) | \
+ TIME_SC(rtc_initpara_struct->rtc_second));
+
+ /* 1st: disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* 2nd: enter init mode */
+ error_status = rtc_init_mode_enter();
+
+ if(ERROR != error_status){
+ RTC_PSC = (uint32_t)(PSC_FACTOR_A(rtc_initpara_struct->rtc_factor_asyn)| \
+ PSC_FACTOR_S(rtc_initpara_struct->rtc_factor_syn));
+
+ RTC_TIME = (uint32_t)reg_time;
+ RTC_DATE = (uint32_t)reg_date;
+
+ RTC_CTL &= (uint32_t)(~RTC_CTL_CS);
+ RTC_CTL |= rtc_initpara_struct->rtc_display_format;
+
+ /* 3rd: exit init mode */
+ rtc_init_mode_exit();
+
+ /* 4th: wait the RSYNF flag to set */
+ error_status = rtc_register_sync_wait();
+ }
+
+ /* 5th: enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+
+ return error_status;
+}
+
+/*!
+ \brief enter RTC init mode
+ \param[in] none
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_init_mode_enter(void)
+{
+ uint32_t time_index = RTC_INITM_TIMEOUT;
+ uint32_t flag_status = RESET;
+ ErrStatus error_status = ERROR;
+
+ /* check whether it has been in init mode */
+ if((uint32_t)RESET == (RTC_STAT & RTC_STAT_INITF)){
+ RTC_STAT |= RTC_STAT_INITM;
+
+ /* wait until the INITF flag to be set */
+ do{
+ flag_status = RTC_STAT & RTC_STAT_INITF;
+ }while((--time_index > 0x00U) && ((uint32_t)RESET == flag_status));
+
+ if((uint32_t)RESET != flag_status){
+ error_status = SUCCESS;
+ }
+ }else{
+ error_status = SUCCESS;
+ }
+ return error_status;
+}
+
+/*!
+ \brief exit RTC init mode
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rtc_init_mode_exit(void)
+{
+ RTC_STAT &= (uint32_t)(~RTC_STAT_INITM);
+}
+
+/*!
+ \brief wait until RTC_TIME and RTC_DATE registers are synchronized with APB clock, and the shadow
+ registers are updated
+ \param[in] none
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_register_sync_wait(void)
+{
+ volatile uint32_t time_index = RTC_RSYNF_TIMEOUT;
+ uint32_t flag_status = RESET;
+ ErrStatus error_status = ERROR;
+
+ if((uint32_t)RESET == (RTC_CTL & RTC_CTL_BPSHAD)){
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* firstly clear RSYNF flag */
+ RTC_STAT &= (uint32_t)(~RTC_STAT_RSYNF);
+
+ /* wait until RSYNF flag to be set */
+ do{
+ flag_status = RTC_STAT & RTC_STAT_RSYNF;
+ }while((--time_index > 0x00U) && ((uint32_t)RESET == flag_status));
+
+ if((uint32_t)RESET != flag_status){
+ error_status = SUCCESS;
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+ }else{
+ error_status = SUCCESS;
+ }
+
+ return error_status;
+}
+
+/*!
+ \brief get current time and date
+ \param[in] none
+ \param[out] rtc_initpara_struct: pointer to a rtc_parameter_struct structure which contains
+ parameters for initialization of the rtc peripheral
+ members of the structure and the member values are shown as below:
+ rtc_year: 0x0 - 0x99(BCD format)
+ rtc_month: RTC_JAN, RTC_FEB, RTC_MAR, RTC_APR, RTC_MAY, RTC_JUN,
+ RTC_JUL, RTC_AUG, RTC_SEP, RTC_OCT, RTC_NOV, RTC_DEC
+ rtc_date: 0x1 - 0x31(BCD format)
+ rtc_day_of_week: RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY
+ RTC_FRIDAY, RTC_SATURDAY, RTC_SUNDAY
+ rtc_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format chose
+ rtc_minute: 0x0 - 0x59(BCD format)
+ rtc_second: 0x0 - 0x59(BCD format)
+ rtc_factor_asyn: 0x0 - 0x7F
+ rtc_factor_syn: 0x0 - 0x7FFF
+ rtc_am_pm: RTC_AM, RTC_PM
+ rtc_display_format: RTC_24HOUR, RTC_12HOUR
+ \retval none
+*/
+void rtc_current_time_get(rtc_parameter_struct* rtc_initpara_struct)
+{
+ uint32_t temp_tr = 0x00U, temp_dr = 0x00U, temp_pscr = 0x00U, temp_ctlr = 0x00U;
+
+ temp_tr = (uint32_t)RTC_TIME;
+ temp_dr = (uint32_t)RTC_DATE;
+ temp_pscr = (uint32_t)RTC_PSC;
+ temp_ctlr = (uint32_t)RTC_CTL;
+
+ /* get current time and construct rtc_parameter_struct structure */
+ rtc_initpara_struct->rtc_year = (uint8_t)GET_DATE_YR(temp_dr);
+ rtc_initpara_struct->rtc_month = (uint8_t)GET_DATE_MON(temp_dr);
+ rtc_initpara_struct->rtc_date = (uint8_t)GET_DATE_DAY(temp_dr);
+ rtc_initpara_struct->rtc_day_of_week = (uint8_t)GET_DATE_DOW(temp_dr);
+ rtc_initpara_struct->rtc_hour = (uint8_t)GET_TIME_HR(temp_tr);
+ rtc_initpara_struct->rtc_minute = (uint8_t)GET_TIME_MN(temp_tr);
+ rtc_initpara_struct->rtc_second = (uint8_t)GET_TIME_SC(temp_tr);
+ rtc_initpara_struct->rtc_factor_asyn = (uint16_t)GET_PSC_FACTOR_A(temp_pscr);
+ rtc_initpara_struct->rtc_factor_syn = (uint16_t)GET_PSC_FACTOR_S(temp_pscr);
+ rtc_initpara_struct->rtc_am_pm = (uint32_t)(temp_pscr & RTC_TIME_PM);
+ rtc_initpara_struct->rtc_display_format = (uint32_t)(temp_ctlr & RTC_CTL_CS);
+}
+
+/*!
+ \brief get current subsecond value
+ \param[in] none
+ \param[out] none
+ \retval current subsecond value
+*/
+uint32_t rtc_subsecond_get(void)
+{
+ uint32_t reg = 0x00U;
+ /* if BPSHAD bit is reset, reading RTC_SS will lock RTC_TIME and RTC_DATE automatically */
+ reg = (uint32_t)RTC_SS;
+ /* read RTC_DATE to unlock the 3 shadow registers */
+ (void) (RTC_DATE);
+
+ return reg;
+}
+
+/*!
+ \brief configure RTC alarm
+ \param[in] rtc_alarm_time: pointer to a rtc_alarm_struct structure which contains
+ parameters for RTC alarm configuration
+ members of the structure and the member values are shown as below:
+ rtc_alarm_mask: RTC_ALARM_NONE_MASK, RTC_ALARM_DATE_MASK, RTC_ALARM_HOUR_MASK
+ RTC_ALARM_MINUTE_MASK, RTC_ALARM_SECOND_MASK, RTC_ALARM_ALL_MASK
+ rtc_weekday_or_date: RTC_ALARM_DATE_SELECTED, RTC_ALARM_WEEKDAY_SELECTED
+ rtc_alarm_day: 1) 0x1 - 0x31(BCD format) if RTC_ALARM_DATE_SELECTED is set
+ 2) RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY, RTC_FRIDAY,
+ RTC_SATURDAY, RTC_SUNDAY if RTC_ALARM_WEEKDAY_SELECTED is set
+ rtc_alarm_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format
+ rtc_alarm_minute: 0x0 - 0x59(BCD format)
+ rtc_alarm_second: 0x0 - 0x59(BCD format)
+ rtc_am_pm: RTC_AM, RTC_PM
+ \param[out] none
+ \retval none
+*/
+void rtc_alarm_config(rtc_alarm_struct* rtc_alarm_time)
+{
+ uint32_t reg_alrm0td = 0x00U;
+
+ reg_alrm0td = (rtc_alarm_time->rtc_alarm_mask | \
+ rtc_alarm_time->rtc_weekday_or_date | \
+ rtc_alarm_time->rtc_am_pm | \
+ ALRM0TD_DAY(rtc_alarm_time->rtc_alarm_day) | \
+ ALRM0TD_HR(rtc_alarm_time->rtc_alarm_hour) | \
+ ALRM0TD_MN(rtc_alarm_time->rtc_alarm_minute) | \
+ ALRM0TD_SC(rtc_alarm_time->rtc_alarm_second));
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_ALRM0TD = (uint32_t)reg_alrm0td;
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief configure subsecond of RTC alarm
+ \param[in] mask_subsecond: alarm subsecond mask
+ only one parameter can be selected which is shown as below:
+ \arg RTC_MASKSSC_0_14: mask alarm subsecond configuration
+ \arg RTC_MASKSSC_1_14: mask RTC_ALRM0SS_SSC[14:1], and RTC_ALRM0SS_SSC[0] is to be compared
+ \arg RTC_MASKSSC_2_14: mask RTC_ALRM0SS_SSC[14:2], and RTC_ALRM0SS_SSC[1:0] is to be compared
+ \arg RTC_MASKSSC_3_14: mask RTC_ALRM0SS_SSC[14:3], and RTC_ALRM0SS_SSC[2:0] is to be compared
+ \arg RTC_MASKSSC_4_14: mask RTC_ALRM0SS_SSC[14:4], and RTC_ALRM0SS_SSC[3:0] is to be compared
+ \arg RTC_MASKSSC_5_14: mask RTC_ALRM0SS_SSC[14:5], and RTC_ALRM0SS_SSC[4:0] is to be compared
+ \arg RTC_MASKSSC_6_14: mask RTC_ALRM0SS_SSC[14:6], and RTC_ALRM0SS_SSC[5:0] is to be compared
+ \arg RTC_MASKSSC_7_14: mask RTC_ALRM0SS_SSC[14:7], and RTC_ALRM0SS_SSC[6:0] is to be compared
+ \arg RTC_MASKSSC_8_14: mask RTC_ALRM0SS_SSC[14:8], and RTC_ALRM0SS_SSC[7:0] is to be compared
+ \arg RTC_MASKSSC_9_14: mask RTC_ALRM0SS_SSC[14:9], and RTC_ALRM0SS_SSC[8:0] is to be compared
+ \arg RTC_MASKSSC_10_14: mask RTC_ALRM0SS_SSC[14:10], and RTC_ALRM0SS_SSC[9:0] is to be compared
+ \arg RTC_MASKSSC_11_14: mask RTC_ALRM0SS_SSC[14:11], and RTC_ALRM0SS_SSC[10:0] is to be compared
+ \arg RTC_MASKSSC_12_14: mask RTC_ALRM0SS_SSC[14:12], and RTC_ALRM0SS_SSC[11:0] is to be compared
+ \arg RTC_MASKSSC_13_14: mask RTC_ALRM0SS_SSC[14:13], and RTC_ALRM0SS_SSC[12:0] is to be compared
+ \arg RTC_MASKSSC_14: mask RTC_ALRM0SS_SSC[14], and RTC_ALRM0SS_SSC[13:0] is to be compared
+ \arg RTC_MASKSSC_NONE: mask none, and RTC_ALRM0SS_SSC[14:0] is to be compared
+ \param[in] subsecond: alarm subsecond value(0x000 - 0x7FFF)
+ \param[out] none
+ \retval none
+*/
+void rtc_alarm_subsecond_config(uint32_t mask_subsecond, uint32_t subsecond)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_ALRM0SS = mask_subsecond | subsecond;
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief enable RTC alarm
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rtc_alarm_enable(void)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_CTL |= RTC_CTL_ALRM0EN;
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief disable RTC alarm
+ \param[in] none
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_alarm_disable(void)
+{
+ volatile uint32_t time_index = RTC_ALRM0WF_TIMEOUT;
+ ErrStatus error_status = ERROR;
+ uint32_t flag_status = RESET;
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* clear the state of alarm */
+ RTC_CTL &= (uint32_t)(~RTC_CTL_ALRM0EN);
+
+ /* wait until ALRM0WF flag to be set after the alarm is disabled */
+ do{
+ flag_status = RTC_STAT & RTC_STAT_ALRM0WF;
+ }while((--time_index > 0x00U) && ((uint32_t)RESET == flag_status));
+
+ if((uint32_t)RESET != flag_status){
+ error_status = SUCCESS;
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+
+ return error_status;
+}
+
+/*!
+ \brief get RTC alarm
+ \param[in] none
+ \param[out] rtc_alarm_time: pointer to a rtc_alarm_struct structure which contains
+ parameters for RTC alarm configuration
+ members of the structure and the member values are shown as below:
+ rtc_alarm_mask: RTC_ALARM_NONE_MASK, RTC_ALARM_DATE_MASK, RTC_ALARM_HOUR_MASK
+ RTC_ALARM_MINUTE_MASK, RTC_ALARM_SECOND_MASK, RTC_ALARM_ALL_MASK
+ rtc_weekday_or_date: RTC_ALARM_DATE_SELECTED, RTC_ALARM_WEEKDAY_SELECTED
+ rtc_alarm_day: 1) 0x1 - 0x31(BCD format) if RTC_ALARM_DATE_SELECTED is set
+ 2) RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY, RTC_FRIDAY,
+ RTC_SATURDAY, RTC_SUNDAY if RTC_ALARM_WEEKDAY_SELECTED is set
+ rtc_alarm_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format
+ rtc_alarm_minute: 0x0 - 0x59(BCD format)
+ rtc_alarm_second: 0x0 - 0x59(BCD format)
+ rtc_am_pm: RTC_AM, RTC_PM
+ \retval none
+*/
+void rtc_alarm_get(rtc_alarm_struct* rtc_alarm_time)
+{
+ uint32_t reg_alrm0td = 0x00U;
+
+ /* get the value of RTC_ALRM0TD register */
+ reg_alrm0td = RTC_ALRM0TD;
+
+ /* get alarm parameters and construct the rtc_alarm_struct structure */
+ rtc_alarm_time->rtc_alarm_mask = reg_alrm0td & RTC_ALARM_ALL_MASK;
+ rtc_alarm_time->rtc_am_pm = (uint32_t)(reg_alrm0td & RTC_ALRM0TD_PM);
+ rtc_alarm_time->rtc_weekday_or_date = (uint32_t)(reg_alrm0td & RTC_ALRM0TD_DOWS);
+ rtc_alarm_time->rtc_alarm_day = (uint8_t)GET_ALRM0TD_DAY(reg_alrm0td);
+ rtc_alarm_time->rtc_alarm_hour = (uint8_t)GET_ALRM0TD_HR(reg_alrm0td);
+ rtc_alarm_time->rtc_alarm_minute = (uint8_t)GET_ALRM0TD_MN(reg_alrm0td);
+ rtc_alarm_time->rtc_alarm_second = (uint8_t)GET_ALRM0TD_SC(reg_alrm0td);
+}
+
+/*!
+ \brief get RTC alarm subsecond
+ \param[in] none
+ \param[out] none
+ \retval RTC alarm subsecond value
+*/
+uint32_t rtc_alarm_subsecond_get(void)
+{
+ return ((uint32_t)(RTC_ALRM0SS & RTC_ALRM0SS_SSC));
+}
+
+/*!
+ \brief enable RTC time-stamp
+ \param[in] edge: specify which edge to detect of time-stamp
+ only one parameter can be selected which is shown as below:
+ \arg RTC_TIMESTAMP_RISING_EDGE: rising edge is valid event edge for timestamp event
+ \arg RTC_TIMESTAMP_FALLING_EDGE: falling edge is valid event edge for timestamp event
+ \param[out] none
+ \retval none
+*/
+void rtc_timestamp_enable(uint32_t edge)
+{
+ uint32_t reg_ctl = 0x00U;
+
+ /* clear the bits to be configured in RTC_CTL */
+ reg_ctl = (uint32_t)(RTC_CTL & (uint32_t)(~(RTC_CTL_TSEG | RTC_CTL_TSEN)));
+
+ /* new configuration */
+ reg_ctl |= (uint32_t)(edge | RTC_CTL_TSEN);
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_CTL = (uint32_t)reg_ctl;
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief disable RTC time-stamp
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rtc_timestamp_disable(void)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* clear the TSEN bit */
+ RTC_CTL &= (uint32_t)(~ RTC_CTL_TSEN);
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief get RTC timestamp time and date
+ \param[in] none
+ \param[out] rtc_timestamp: pointer to a rtc_timestamp_struct structure which contains
+ parameters for RTC time-stamp configuration
+ members of the structure and the member values are shown as below:
+ rtc_timestamp_month: RTC_JAN, RTC_FEB, RTC_MAR, RTC_APR, RTC_MAY, RTC_JUN,
+ RTC_JUL, RTC_AUG, RTC_SEP, RTC_OCT, RTC_NOV, RTC_DEC
+ rtc_timestamp_date: 0x1 - 0x31(BCD format)
+ rtc_timestamp_day: RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY, RTC_FRIDAY,
+ RTC_SATURDAY, RTC_SUNDAY if RTC_ALARM_WEEKDAY_SELECTED is set
+ rtc_timestamp_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format
+ rtc_timestamp_minute: 0x0 - 0x59(BCD format)
+ rtc_timestamp_second: 0x0 - 0x59(BCD format)
+ rtc_am_pm: RTC_AM, RTC_PM
+ \retval none
+*/
+void rtc_timestamp_get(rtc_timestamp_struct* rtc_timestamp)
+{
+ uint32_t temp_tts = 0x00U, temp_dts = 0x00U;
+
+ /* get the value of time_stamp registers */
+ temp_tts = (uint32_t)RTC_TTS;
+ temp_dts = (uint32_t)RTC_DTS;
+
+ /* get timestamp time and construct the rtc_timestamp_struct structure */
+ rtc_timestamp->rtc_am_pm = (uint32_t)(temp_tts & RTC_TTS_PM);
+ rtc_timestamp->rtc_timestamp_month = (uint8_t)GET_DTS_MON(temp_dts);
+ rtc_timestamp->rtc_timestamp_date = (uint8_t)GET_DTS_DAY(temp_dts);
+ rtc_timestamp->rtc_timestamp_day = (uint8_t)GET_DTS_DOW(temp_dts);
+ rtc_timestamp->rtc_timestamp_hour = (uint8_t)GET_TTS_HR(temp_tts);
+ rtc_timestamp->rtc_timestamp_minute = (uint8_t)GET_TTS_MN(temp_tts);
+ rtc_timestamp->rtc_timestamp_second = (uint8_t)GET_TTS_SC(temp_tts);
+}
+
+/*!
+ \brief get RTC time-stamp subsecond
+ \param[in] none
+ \param[out] none
+ \retval RTC time-stamp subsecond value
+*/
+uint32_t rtc_timestamp_subsecond_get(void)
+{
+ return ((uint32_t)RTC_SSTS);
+}
+
+/*!
+ \brief enable RTC tamper
+ \param[in] rtc_tamper: pointer to a rtc_tamper_struct structure which contains
+ parameters for RTC tamper configuration
+ members of the structure and the member values are shown as below:
+ rtc_tamper_source: RTC_TAMPER0, RTC_TAMPER1
+ rtc_tamper_trigger: RTC_TAMPER_TRIGGER_EDGE_RISING, RTC_TAMPER_TRIGGER_EDGE_FALLING
+ RTC_TAMPER_TRIGGER_LEVEL_LOW, RTC_TAMPER_TRIGGER_LEVEL_HIGH
+ rtc_tamper_filter: RTC_FLT_EDGE, RTC_FLT_2S, RTC_FLT_4S, RTC_FLT_8S
+ rtc_tamper_sample_frequency: RTC_FREQ_DIV32768, RTC_FREQ_DIV16384, RTC_FREQ_DIV8192,
+ RTC_FREQ_DIV4096, RTC_FREQ_DIV2048, RTC_FREQ_DIV1024,
+ RTC_FREQ_DIV512, RTC_FREQ_DIV256
+ rtc_tamper_precharge_enable: DISABLE, ENABLE
+ rtc_tamper_precharge_time: RTC_PRCH_1C, RTC_PRCH_2C, RTC_PRCH_4C, RTC_PRCH_8C
+ rtc_tamper_with_timestamp: DISABLE, ENABLE
+ \param[out] none
+ \retval none
+*/
+void rtc_tamper_enable(rtc_tamper_struct* rtc_tamper)
+{
+ /* disable tamper */
+ RTC_TAMP &= (uint32_t)~(rtc_tamper->rtc_tamper_source);
+
+ /* tamper filter must be used when the tamper source is voltage level detection */
+ RTC_TAMP &= (uint32_t)~RTC_TAMP_FLT;
+
+ /* the tamper source is voltage level detection */
+ if(rtc_tamper->rtc_tamper_filter != RTC_FLT_EDGE ){
+ RTC_TAMP &= (uint32_t)~(RTC_TAMP_DISPU | RTC_TAMP_PRCH | RTC_TAMP_FREQ | RTC_TAMP_FLT);
+
+ /* check if the tamper pin need precharge, if need, then configure the precharge time */
+ if(DISABLE == rtc_tamper->rtc_tamper_precharge_enable){
+ RTC_TAMP |= (uint32_t)RTC_TAMP_DISPU;
+ }else{
+ RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_precharge_time);
+ }
+
+ RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_sample_frequency);
+ RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_filter);
+ }
+
+ RTC_TAMP &= (uint32_t)~RTC_TAMP_TPTS;
+
+ if(DISABLE != rtc_tamper->rtc_tamper_with_timestamp){
+ /* the tamper event also cause a time-stamp event */
+ RTC_TAMP |= (uint32_t)RTC_TAMP_TPTS;
+ }
+
+ /* configure the tamper trigger */
+ RTC_TAMP &= ((uint32_t)~((rtc_tamper->rtc_tamper_source) << RTC_TAMPER_TRIGGER_POS));
+ if(RTC_TAMPER_TRIGGER_EDGE_RISING != rtc_tamper->rtc_tamper_trigger){
+ RTC_TAMP |= (uint32_t)((rtc_tamper->rtc_tamper_source)<< RTC_TAMPER_TRIGGER_POS);
+ }
+ /* enable tamper */
+ RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_source);
+}
+
+/*!
+ \brief disable RTC tamper
+ \param[in] source: specify which tamper source to be disabled
+ only one parameter can be selected which is shown as below:
+ \arg RTC_TAMPER0
+ \arg RTC_TAMPER1
+ \param[out] none
+ \retval none
+*/
+void rtc_tamper_disable(uint32_t source)
+{
+ /* disable tamper */
+ RTC_TAMP &= (uint32_t)~source;
+
+}
+
+/*!
+ \brief enable specified RTC interrupt
+ \param[in] interrupt: specify which interrupt source to be enabled
+ only one parameter can be selected which is shown as below:
+ \arg RTC_INT_TIMESTAMP: timestamp interrupt
+ \arg RTC_INT_ALARM: alarm interrupt
+ \arg RTC_INT_TAMP: tamp interrupt
+ \param[out] none
+ \retval none
+*/
+void rtc_interrupt_enable(uint32_t interrupt)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* enable the interrupts in RTC_CTL register */
+ RTC_CTL |= (uint32_t)(interrupt & (uint32_t)~RTC_TAMP_TPIE);
+ /* enable the interrupts in RTC_TAMP register */
+ RTC_TAMP |= (uint32_t)(interrupt & RTC_TAMP_TPIE);
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief disble specified RTC interrupt
+ \param[in] interrupt: specify which interrupt source to be disabled
+ only one parameter can be selected which is shown as below:
+ \arg RTC_INT_TIMESTAMP: timestamp interrupt
+ \arg RTC_INT_ALARM: alarm interrupt
+ \arg RTC_INT_TAMP: tamp interrupt
+ \param[out] none
+ \retval none
+*/
+void rtc_interrupt_disable(uint32_t interrupt)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* disable the interrupts in RTC_CTL register */
+ RTC_CTL &= (uint32_t)~(interrupt & (uint32_t)~RTC_TAMP_TPIE);
+ /* disable the interrupts in RTC_TAMP register */
+ RTC_TAMP &= (uint32_t)~(interrupt & RTC_TAMP_TPIE);
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief check specified flag
+ \param[in] flag: specify which flag to check
+ only one parameter can be selected which is shown as below:
+ \arg RTC_FLAG_RECALIBRATION: recalibration pending flag
+ \arg RTC_FLAG_TAMP1: tamper 1 event flag
+ \arg RTC_FLAG_TAMP0: tamper 0 event flag
+ \arg RTC_FLAG_TIMESTAMP_OVERFLOW: time-stamp overflow event flag
+ \arg RTC_FLAG_TIMESTAMP: time-stamp event flag
+ \arg RTC_FLAG_ALARM0: alarm event flag
+ \arg RTC_FLAG_INIT: init mode event flag
+ \arg RTC_FLAG_RSYN: time and date registers synchronized event flag
+ \arg RTC_FLAG_YCM: year parameter configured event flag
+ \arg RTC_FLAG_SHIFT: shift operation pending flag
+ \arg RTC_FLAG_ALARM0_WRITTEN: alarm writen available flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus rtc_flag_get(uint32_t flag)
+{
+ FlagStatus flag_state = RESET;
+
+ if((uint32_t)RESET != (RTC_STAT & flag)){
+ flag_state = SET;
+ }
+ return flag_state;
+}
+
+/*!
+ \brief clear specified flag
+ \param[in] flag: specify which flag to clear
+ only one parameter can be selected which is shown as below:
+ \arg RTC_FLAG_TAMP1: tamper 1 event flag
+ \arg RTC_FLAG_TAMP0: tamper 0 event flag
+ \arg RTC_FLAG_TIMESTAMP_OVERFLOW: time-stamp overflow event flag
+ \arg RTC_FLAG_TIMESTAMP: time-stamp event flag
+ \arg RTC_FLAG_ALARM0: alarm event flag
+ \arg RTC_FLAG_RSYN: time and date registers synchronized event flag
+ \param[out] none
+ \retval none
+*/
+void rtc_flag_clear(uint32_t flag)
+{
+ RTC_STAT &= (uint32_t)(~flag);
+}
+
+/*!
+ \brief configure rtc alternate output source
+ \param[in] source: specify signal to output
+ only one parameter can be selected which is shown as below:
+ \arg RTC_CALIBRATION_512HZ: when the LSE freqency is 32768Hz and the RTC_PSC
+ is the default value, output 512Hz signal
+ \arg RTC_CALIBRATION_1HZ: when the LSE freqency is 32768Hz and the RTC_PSC
+ is the default value, output 512Hz signal
+ \arg RTC_ALARM_HIGH: when the alarm flag is set, the output pin is high
+ \arg RTC_ALARM_LOW: when the Alarm flag is set, the output pin is low
+ \param[in] mode: specify the output pin (PC13) mode when output alarm signal
+ only one parameter can be selected which is shown as below:
+ \arg RTC_ALARM_OUTPUT_OD: open drain mode
+ \arg RTC_ALARM_OUTPUT_PP: push pull mode
+ \param[out] none
+ \retval none
+*/
+void rtc_alter_output_config(uint32_t source, uint32_t mode)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_CTL &= (uint32_t)~(RTC_CTL_COEN | RTC_CTL_OS | RTC_CTL_OPOL | RTC_CTL_COS);
+
+ RTC_CTL |= (uint32_t)(source);
+
+ /* alarm output */
+ if((uint32_t)RESET != (source & RTC_OS_ENABLE)){
+ RTC_TAMP &= (uint32_t)~(RTC_TAMP_PC13VAL);
+ RTC_TAMP |= (uint32_t)(mode);
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief configure RTC calibration register
+ \param[in] window: select calibration window
+ only one parameter can be selected which is shown as below:
+ \arg RTC_CALIBRATION_WINDOW_32S: 2exp20 RTCCLK cycles, 32s if RTCCLK = 32768 Hz
+ \arg RTC_CALIBRATION_WINDOW_16S: 2exp19 RTCCLK cycles, 16s if RTCCLK = 32768 Hz
+ \arg RTC_CALIBRATION_WINDOW_8S: 2exp18 RTCCLK cycles, 8s if RTCCLK = 32768 Hz
+ \param[in] plus: add RTC clock or not
+ only one parameter can be selected which is shown as below:
+ \arg RTC_CALIBRATION_PLUS_SET: add one RTC clock every 2048 rtc clock
+ \arg RTC_CALIBRATION_PLUS_RESET: no effect
+ \param[in] minus: the RTC clock to minus during the calibration window(0x0 - 0x1FF)
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_calibration_config(uint32_t window, uint32_t plus, uint32_t minus)
+{
+ uint32_t time_index = RTC_HRFC_TIMEOUT;
+ ErrStatus error_status = ERROR;
+ uint32_t flag_status = RESET;
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* check if a calibration operation is ongoing */
+ do{
+ flag_status = RTC_STAT & RTC_STAT_SCPF;
+ }while((--time_index > 0x00U) && ((uint32_t)RESET != flag_status));
+
+ if((uint32_t)RESET == flag_status){
+ RTC_HRFC = (uint32_t)(window | plus | HRFC_CMSK(minus));
+ error_status = SUCCESS;
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+
+ return error_status;
+}
+
+/*!
+ \brief adjust the daylight saving time by adding or substracting one hour from the current time
+ \param[in] operation: hour ajustment operation
+ only one parameter can be selected which is shown as below:
+ \arg RTC_CTL_A1H: add one hour
+ \arg RTC_CTL_S1H: substract one hour
+ \param[out] none
+ \retval none
+*/
+void rtc_hour_adjust(uint32_t operation)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_CTL |= (uint32_t)(operation);
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief adjust RTC second or subsecond value of current time
+ \param[in] add: add 1s to current time or not
+ only one parameter can be selected which is shown as below:
+ \arg RTC_SHIFT_ADD1S_RESET: no effect
+ \arg RTC_SHIFT_ADD1S_SET: add 1s to current time
+ \param[in] minus: number of subsecond to minus from current time(0x0 - 0x7FFF)
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_second_adjust(uint32_t add, uint32_t minus)
+{
+ uint32_t time_index = RTC_SHIFTCTL_TIMEOUT;
+ ErrStatus error_status = ERROR;
+ uint32_t flag_status = RESET;
+ uint32_t temp=0U;
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* check if a shift operation is ongoing */
+ do{
+ flag_status = RTC_STAT & RTC_STAT_SOPF;
+ }while((--time_index > 0x00U) && ((uint32_t)RESET != flag_status));
+
+ temp = RTC_CTL & RTC_CTL_REFEN;
+ /* check if the function of reference clock detection is disabled */
+ if(((uint32_t)RESET == flag_status) && (RESET == temp)){
+ RTC_SHIFTCTL = (uint32_t)(add | SHIFTCTL_SFS(minus));
+ error_status = rtc_register_sync_wait();
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+
+ return error_status;
+}
+
+/*!
+ \brief enable RTC bypass shadow registers function
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rtc_bypass_shadow_enable(void)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_CTL |= (uint8_t)RTC_CTL_BPSHAD;
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief disable RTC bypass shadow registers function
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void rtc_bypass_shadow_disable(void)
+{
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ RTC_CTL &= (uint8_t)~RTC_CTL_BPSHAD;
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+}
+
+/*!
+ \brief enable RTC reference clock detection function
+ \param[in] none
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_refclock_detection_enable(void)
+{
+ ErrStatus error_status = ERROR;
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* enter init mode */
+ error_status = rtc_init_mode_enter();
+
+ if(ERROR != error_status){
+ RTC_CTL |= (uint32_t)RTC_CTL_REFEN;
+ /* exit init mode */
+ rtc_init_mode_exit();
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+
+ return error_status;
+}
+
+/*!
+ \brief disable RTC reference clock detection function
+ \param[in] none
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus rtc_refclock_detection_disable(void)
+{
+ ErrStatus error_status = ERROR;
+
+ /* disable the write protection */
+ RTC_WPK = RTC_UNLOCK_KEY1;
+ RTC_WPK = RTC_UNLOCK_KEY2;
+
+ /* enter init mode */
+ error_status = rtc_init_mode_enter();
+
+ if(ERROR != error_status){
+ RTC_CTL &= (uint32_t)~RTC_CTL_REFEN;
+ /* exit init mode */
+ rtc_init_mode_exit();
+ }
+
+ /* enable the write protection */
+ RTC_WPK = RTC_LOCK_KEY;
+
+ return error_status;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_spi.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_spi.c
new file mode 100644
index 0000000000..a48f5c426a
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_spi.c
@@ -0,0 +1,1003 @@
+/*!
+ \file gd32e230_spi.c
+ \brief SPI driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_spi.h"
+
+/* SPI/I2S parameter initialization mask */
+#define SPI_INIT_MASK ((uint32_t)0x00003040U) /*!< SPI0 parameter initialization mask */
+#define SPI_FIFO_INIT_MASK1 ((uint32_t)0x00003840U) /*!< SPI1 parameter initialization mask1 */
+#define SPI_FIFO_INIT_MASK2 ((uint32_t)0x0000F0FFU) /*!< SPI1 parameter initialization mask2*/
+#define I2S_INIT_MASK ((uint32_t)0x0000F047U) /*!< I2S parameter initialization mask */
+
+#define SPI_FRAMESIZE_MASK ((uint32_t)0x00000800U) /*!< SPI0 frame size mask */
+#define SPI_BYTEN_MASK ((uint32_t)0x00001000U) /*!< SPI1 access to FIFO mask */
+#define SPI_TXLVL_EMPTY_MASK ((uint32_t)0x00001800U) /*!< SPI1 TXFIFO empty mask */
+#define SPI_RXLVL_EMPTY_MASK ((uint32_t)0x00000600U) /*!< SPI1 RXFIFO empty mask */
+
+/* I2S clock source selection, multiplication and division mask */
+#define SPI_I2SPSC_RESET ((uint32_t)0x00000002U) /*!< I2S clock prescaler register reset value */
+
+/*!
+ \brief reset SPI and I2S
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_i2s_deinit(uint32_t spi_periph)
+{
+ switch(spi_periph){
+ case SPI0:
+ /* reset SPI0 and I2S0 */
+ rcu_periph_reset_enable(RCU_SPI0RST);
+ rcu_periph_reset_disable(RCU_SPI0RST);
+ break;
+ case SPI1:
+ /* reset SPI1 */
+ rcu_periph_reset_enable(RCU_SPI1RST);
+ rcu_periph_reset_disable(RCU_SPI1RST);
+ break;
+ default :
+ break;
+ }
+}
+
+/*!
+ \brief initialize the parameters of SPI struct with the default values
+ \param[in] spi_struct: SPI parameter stuct
+ \param[out] none
+ \retval none
+*/
+void spi_struct_para_init(spi_parameter_struct* spi_struct)
+{
+ /* set the SPI struct with the default values */
+ spi_struct->device_mode = SPI_SLAVE;
+ spi_struct->trans_mode = SPI_TRANSMODE_FULLDUPLEX;
+ spi_struct->frame_size = SPI_FRAMESIZE_8BIT;
+ spi_struct->nss = SPI_NSS_HARD;
+ spi_struct->clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
+ spi_struct->prescale = SPI_PSC_2;
+}
+
+/*!
+ \brief initialize SPI parameter
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] spi_struct: SPI parameter initialization stuct members of the structure
+ and the member values are shown as below:
+ device_mode: SPI_MASTER, SPI_SLAVE
+ trans_mode: SPI_TRANSMODE_FULLDUPLEX, SPI_TRANSMODE_RECEIVEONLY,
+ SPI_TRANSMODE_BDRECEIVE, SPI_TRANSMODE_BDTRANSMIT
+ frame_size: SPI_FRAMESIZE_4BIT, SPI_FRAMESIZE_5BIT
+ SPI_FRAMESIZE_6BIT, SPI_FRAMESIZE_7BIT
+ SPI_FRAMESIZE_8BIT, SPI_FRAMESIZE_9BIT
+ SPI_FRAMESIZE_10BIT, SPI_FRAMESIZE_11BIT
+ SPI_FRAMESIZE_12BIT, SPI_FRAMESIZE_13BIT
+ SPI_FRAMESIZE_14BIT, SPI_FRAMESIZE_15BIT
+ SPI_FRAMESIZE_16BIT
+ nss: SPI_NSS_SOFT, SPI_NSS_HARD
+ endian: SPI_ENDIAN_MSB, SPI_ENDIAN_LSB
+ clock_polarity_phase: SPI_CK_PL_LOW_PH_1EDGE, SPI_CK_PL_HIGH_PH_1EDGE
+ SPI_CK_PL_LOW_PH_2EDGE, SPI_CK_PL_HIGH_PH_2EDGE
+ prescale: SPI_PSC_n (n=2,4,8,16,32,64,128,256)
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus spi_init(uint32_t spi_periph, spi_parameter_struct* spi_struct)
+{
+ uint32_t reg1, reg2, reg3 = 0U;
+
+ reg1 = SPI_CTL0(spi_periph);
+ reg1 &= SPI_INIT_MASK;
+
+ reg2 = SPI_CTL0(spi_periph);
+ reg2 &= SPI_FIFO_INIT_MASK1;
+
+ reg3 = SPI_CTL1(spi_periph);
+ reg3 &= SPI_FIFO_INIT_MASK2;
+
+ if( SPI0 == spi_periph){
+ /* select SPI as master or slave */
+ reg1 |= spi_struct->device_mode;
+ /* select SPI transfer mode */
+ reg1 |= spi_struct->trans_mode;
+ /* select SPI NSS use hardware or software */
+ reg1 |= spi_struct->nss;
+ /* select SPI LSB or MSB */
+ reg1 |= spi_struct->endian;
+ /* select SPI polarity and phase */
+ reg1 |= spi_struct->clock_polarity_phase;
+ /* select SPI prescale to adjust transmit speed */
+ reg1 |= spi_struct->prescale;
+ /* select SPI frame size */
+ /* check SPI0 frame size is 8bits/16bits or not*/
+ if((SPI_FRAMESIZE_8BIT != spi_struct->frame_size) && (SPI_FRAMESIZE_16BIT != spi_struct->frame_size))
+ {
+ return ERROR;
+ }else{
+ reg1 |= (spi_struct->frame_size & SPI_FRAMESIZE_MASK);
+ }
+
+ /* write to SPI_CTL0 register */
+ SPI_CTL0(spi_periph) = (uint32_t)reg1;
+
+ }else{
+ /* select SPI as master or slave */
+ reg2 |= spi_struct->device_mode;
+ /* select SPI transfer mode */
+ reg2 |= spi_struct->trans_mode;
+ /* select SPI NSS use hardware or software */
+ reg2 |= spi_struct->nss;
+ /* select SPI LSB or MSB */
+ reg2 |= spi_struct->endian;
+ /* select SPI polarity and phase */
+ reg2 |= spi_struct->clock_polarity_phase;
+ /* select SPI prescale to adjust transmit speed */
+ reg2 |= spi_struct->prescale;
+ /* write to SPI_CTL0 register */
+ SPI_CTL0(spi_periph) = (uint32_t)reg2;
+
+ /* select SPI data size */
+ reg3 |= spi_struct->frame_size;
+ /* write to SPI_CTL0 register */
+ SPI_CTL1(spi_periph) = (uint32_t)reg3;
+ }
+
+ /* select SPI mode */
+ SPI_I2SCTL(spi_periph) &= (uint32_t)(~SPI_I2SCTL_I2SSEL);
+
+ return SUCCESS;
+}
+
+/*!
+ \brief enable SPI
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_enable(uint32_t spi_periph)
+{
+ SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_SPIEN;
+}
+
+/*!
+ \brief disable SPI
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_disable(uint32_t spi_periph)
+{
+ SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_SPIEN);
+}
+
+/*!
+ \brief initialize I2S parameter
+ \param[in] spi_periph: SPIx(x=0)
+ \param[in] mode: I2S operation mode
+ only one parameter can be selected which is shown as below:
+ \arg I2S_MODE_SLAVETX: I2S slave transmit mode
+ \arg I2S_MODE_SLAVERX: I2S slave receive mode
+ \arg I2S_MODE_MASTERTX: I2S master transmit mode
+ \arg I2S_MODE_MASTERRX: I2S master receive mode
+ \param[in] standard: I2S standard
+ only one parameter can be selected which is shown as below:
+ \arg I2S_STD_PHILLIPS: I2S phillips standard
+ \arg I2S_STD_MSB: I2S MSB standard
+ \arg I2S_STD_LSB: I2S LSB standard
+ \arg I2S_STD_PCMSHORT: I2S PCM short standard
+ \arg I2S_STD_PCMLONG: I2S PCM long standard
+ \param[in] ckpl: I2S idle state clock polarity
+ only one parameter can be selected which is shown as below:
+ \arg I2S_CKPL_LOW: I2S clock polarity low level
+ \arg I2S_CKPL_HIGH: I2S clock polarity high level
+ \param[out] none
+ \retval none
+*/
+void i2s_init(uint32_t spi_periph, uint32_t mode, uint32_t standard, uint32_t ckpl)
+{
+ uint32_t reg = 0U;
+ reg = SPI_I2SCTL(spi_periph);
+ reg &= I2S_INIT_MASK;
+
+ /* enable I2S mode */
+ reg |= (uint32_t)SPI_I2SCTL_I2SSEL;
+ /* select I2S mode */
+ reg |= (uint32_t)mode;
+ /* select I2S standard */
+ reg |= (uint32_t)standard;
+ /* select I2S polarity */
+ reg |= (uint32_t)ckpl;
+
+ /* write to SPI_I2SCTL register */
+ SPI_I2SCTL(spi_periph) = (uint32_t)reg;
+}
+
+/*!
+ \brief configure I2S prescaler
+ \param[in] spi_periph: SPIx(x=0)
+ \param[in] audiosample: I2S audio sample rate
+ only one parameter can be selected which is shown as below:
+ \arg I2S_AUDIOSAMPLE_8K: audio sample rate is 8KHz
+ \arg I2S_AUDIOSAMPLE_11K: audio sample rate is 11KHz
+ \arg I2S_AUDIOSAMPLE_16K: audio sample rate is 16KHz
+ \arg I2S_AUDIOSAMPLE_22K: audio sample rate is 22KHz
+ \arg I2S_AUDIOSAMPLE_32K: audio sample rate is 32KHz
+ \arg I2S_AUDIOSAMPLE_44K: audio sample rate is 44KHz
+ \arg I2S_AUDIOSAMPLE_48K: audio sample rate is 48KHz
+ \arg I2S_AUDIOSAMPLE_96K: audio sample rate is 96KHz
+ \arg I2S_AUDIOSAMPLE_192K: audio sample rate is 192KHz
+ \param[in] frameformat: I2S data length and channel length
+ only one parameter can be selected which is shown as below:
+ \arg I2S_FRAMEFORMAT_DT16B_CH16B: I2S data length is 16 bit and channel length is 16 bit
+ \arg I2S_FRAMEFORMAT_DT16B_CH32B: I2S data length is 16 bit and channel length is 32 bit
+ \arg I2S_FRAMEFORMAT_DT24B_CH32B: I2S data length is 24 bit and channel length is 32 bit
+ \arg I2S_FRAMEFORMAT_DT32B_CH32B: I2S data length is 32 bit and channel length is 32 bit
+ \param[in] mckout: I2S master clock output
+ only one parameter can be selected which is shown as below:
+ \arg I2S_MCKOUT_ENABLE: I2S master clock output enable
+ \arg I2S_MCKOUT_DISABLE: I2S master clock output disable
+ \param[out] none
+ \retval none
+*/
+void i2s_psc_config(uint32_t spi_periph, uint32_t audiosample, uint32_t frameformat, uint32_t mckout)
+{
+ uint32_t i2sdiv = 2U, i2sof = 0U;
+ uint32_t clks = 0U;
+ uint32_t i2sclock = 0U;
+
+ /* deinit SPI_I2SPSC register */
+ SPI_I2SPSC(spi_periph) = SPI_I2SPSC_RESET;
+
+ /* get system clock */
+ i2sclock = rcu_clock_freq_get(CK_SYS);
+
+ /* config the prescaler depending on the mclk output state, the frame format and audio sample rate */
+ if(I2S_MCKOUT_ENABLE == mckout){
+ clks = (uint32_t)(((i2sclock / 256U) * 10U) / audiosample);
+ }else{
+ if(I2S_FRAMEFORMAT_DT16B_CH16B == frameformat){
+ clks = (uint32_t)(((i2sclock / 32U) *10U ) / audiosample);
+ }else{
+ clks = (uint32_t)(((i2sclock / 64U) *10U ) / audiosample);
+ }
+ }
+
+ /* remove the floating point */
+ clks = (clks + 5U) / 10U;
+ i2sof = (clks & 0x00000001U);
+ i2sdiv = ((clks - i2sof) / 2U);
+ i2sof = (i2sof << 8U);
+
+ /* set the default values */
+ if((i2sdiv < 2U) || (i2sdiv > 255U)){
+ i2sdiv = 2U;
+ i2sof = 0U;
+ }
+
+ /* configure SPI_I2SPSC */
+ SPI_I2SPSC(spi_periph) = (uint32_t)(i2sdiv | i2sof | mckout);
+
+ /* clear SPI_I2SCTL_DTLEN and SPI_I2SCTL_CHLEN bits */
+ SPI_I2SCTL(spi_periph) &= (uint32_t)(~(SPI_I2SCTL_DTLEN | SPI_I2SCTL_CHLEN));
+ /* configure data frame format */
+ SPI_I2SCTL(spi_periph) |= (uint32_t)frameformat;
+}
+
+
+/*!
+ \brief enable I2S
+ \param[in] spi_periph: SPIx(x=0)
+ \param[out] none
+ \retval none
+*/
+void i2s_enable(uint32_t spi_periph)
+{
+ SPI_I2SCTL(spi_periph) |= (uint32_t)SPI_I2SCTL_I2SEN;
+}
+
+/*!
+ \brief disable I2S
+ \param[in] spi_periph: SPIx(x=0)
+ \param[out] none
+ \retval none
+*/
+void i2s_disable(uint32_t spi_periph)
+{
+ SPI_I2SCTL(spi_periph) &= (uint32_t)(~SPI_I2SCTL_I2SEN);
+}
+
+/*!
+ \brief enable SPI NSS output
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_nss_output_enable(uint32_t spi_periph)
+{
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_NSSDRV;
+}
+
+/*!
+ \brief disable SPI NSS output
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_nss_output_disable(uint32_t spi_periph)
+{
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_NSSDRV);
+}
+
+/*!
+ \brief SPI NSS pin high level in software mode
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_nss_internal_high(uint32_t spi_periph)
+{
+ SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_SWNSS;
+}
+
+/*!
+ \brief SPI NSS pin low level in software mode
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_nss_internal_low(uint32_t spi_periph)
+{
+ SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_SWNSS);
+}
+
+/*!
+ \brief enable SPI DMA send or receive
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] dma: SPI DMA mode
+ only one parameter can be selected which is shown as below:
+ \arg SPI_DMA_TRANSMIT: SPI transmit data using DMA
+ \arg SPI_DMA_RECEIVE: SPI receive data using DMA
+ \param[out] none
+ \retval none
+*/
+void spi_dma_enable(uint32_t spi_periph, uint8_t dma)
+{
+ if(SPI_DMA_TRANSMIT == dma){
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_DMATEN;
+ }else{
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_DMAREN;
+ }
+}
+
+/*!
+ \brief disable SPI DMA send or receive
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] dma: SPI DMA mode
+ only one parameter can be selected which is shown as below:
+ \arg SPI_DMA_TRANSMIT: SPI transmit data using DMA
+ \arg SPI_DMA_RECEIVE: SPI receive data using DMA
+ \param[out] none
+ \retval none
+*/
+void spi_dma_disable(uint32_t spi_periph, uint8_t dma)
+{
+ if(SPI_DMA_TRANSMIT == dma){
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_DMATEN);
+ }else{
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_DMAREN);
+ }
+}
+
+/*!
+ \brief configure SPI/I2S data frame format
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] frame_format: SPI frame size
+ only one parameter can be selected which is shown as below:
+ \arg SPI_FRAMESIZE_4BIT: SPI frame size is 4 bits
+ \arg SPI_FRAMESIZE_5BIT: SPI frame size is 5 bits
+ \arg SPI_FRAMESIZE_6BIT: SPI frame size is 6 bits
+ \arg SPI_FRAMESIZE_7BIT: SPI frame size is 7 bits
+ \arg SPI_FRAMESIZE_8BIT: SPI frame size is 8 bits
+ \arg SPI_FRAMESIZE_9BIT: SPI frame size is 9 bits
+ \arg SPI_FRAMESIZE_10BIT: SPI frame size is 10 bits
+ \arg SPI_FRAMESIZE_11BIT: SPI frame size is 11 bits
+ \arg SPI_FRAMESIZE_12BIT: SPI frame size is 12 bits
+ \arg SPI_FRAMESIZE_13BIT: SPI frame size is 13 bits
+ \arg SPI_FRAMESIZE_14BIT: SPI frame size is 14 bits
+ \arg SPI_FRAMESIZE_15BIT: SPI frame size is 15 bits
+ \arg SPI_FRAMESIZE_16BIT: SPI frame size is 16 bits
+ \param[out] none
+ \retval ErrStatus: ERROR or SUCCESS
+*/
+ErrStatus spi_i2s_data_frame_format_config(uint32_t spi_periph, uint16_t frame_format)
+{
+ if(SPI0 == spi_periph)
+ {
+ /* check SPI0 frame size is 8bits/16bits or not*/
+ if((SPI_FRAMESIZE_8BIT != frame_format) && (SPI_FRAMESIZE_16BIT != frame_format))
+ {
+ return ERROR;
+ }else{
+ /* clear SPI_CTL0_FF16 bit */
+ SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_FF16);
+ /* configure SPI_CTL0_FF16 bit */
+ SPI_CTL0(spi_periph) |= ((uint32_t)frame_format & SPI_FRAMESIZE_MASK);
+ }
+ }
+ else{
+ /* clear SPI_CTL1_DZ bits */
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_DZ);
+ /* confige SPI_CTL1_DZ bits */
+ SPI_CTL1(spi_periph) |= (uint32_t)frame_format;
+ }
+ return SUCCESS;
+}
+
+/*!
+ \brief SPI transmit data
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] data: 16-bit data
+ \param[out] none
+ \retval none
+*/
+void spi_i2s_data_transmit(uint32_t spi_periph, uint16_t data)
+{
+ uint32_t reg, byten;
+ if(SPI0 == spi_periph)
+ {
+ SPI_DATA(spi_periph) = (uint32_t)data;
+ }
+ else
+ {
+ /* get the access size to FIFO */
+ byten = SPI_CTL1(spi_periph) & SPI_BYTEN_MASK;
+ if(RESET != byten)
+ {
+ reg = spi_periph + 0x0CU;
+ *( uint8_t *)(reg) = (uint8_t)data;
+ }else
+ {
+ SPI_DATA(spi_periph) = (uint16_t)data;
+ }
+ }
+}
+
+/*!
+ \brief SPI receive data
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval 16-bit data
+*/
+uint16_t spi_i2s_data_receive(uint32_t spi_periph)
+{
+ uint32_t reg, byten;
+ if(SPI0 == spi_periph)
+ {
+ return ((uint16_t)SPI_DATA(spi_periph));
+ }
+ else
+ {
+ /* get the access size to FIFO */
+ byten = SPI_CTL1(spi_periph) & SPI_BYTEN_MASK;
+ if(RESET != byten)
+ {
+ reg = spi_periph + 0x0CU;
+ return (uint16_t)(*(uint8_t *)(reg));
+ }else
+ {
+ return ((uint16_t)SPI_DATA(spi_periph));
+ }
+ }
+}
+
+/*!
+ \brief configure SPI bidirectional transfer direction
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] transfer_direction: SPI transfer direction
+ only one parameter can be selected which is shown as below:
+ \arg SPI_BIDIRECTIONAL_TRANSMIT: SPI work in transmit-only mode
+ \arg SPI_BIDIRECTIONAL_RECEIVE: SPI work in receive-only mode
+ \param[out] none
+ \retval none
+*/
+void spi_bidirectional_transfer_config(uint32_t spi_periph, uint32_t transfer_direction)
+{
+ if(SPI_BIDIRECTIONAL_TRANSMIT == transfer_direction){
+ /* set the transmit-only mode */
+ SPI_CTL0(spi_periph) |= (uint32_t)SPI_BIDIRECTIONAL_TRANSMIT;
+ }else{
+ /* set the receive-only mode */
+ SPI_CTL0(spi_periph) &= SPI_BIDIRECTIONAL_RECEIVE;
+ }
+}
+
+/*!
+ \brief set SPI CRC polynomial
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] crc_poly: CRC polynomial value
+ \param[out] none
+ \retval none
+*/
+void spi_crc_polynomial_set(uint32_t spi_periph, uint16_t crc_poly)
+{
+ /* enable SPI CRC */
+ SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCEN;
+ /* set SPI CRC polynomial */
+ SPI_CRCPOLY(spi_periph) = (uint32_t)crc_poly;
+}
+
+/*!
+ \brief get SPI CRC polynomial
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval 16-bit CRC polynomial
+*/
+uint16_t spi_crc_polynomial_get(uint32_t spi_periph)
+{
+ return ((uint16_t)SPI_CRCPOLY(spi_periph));
+}
+
+/*!
+ \brief turn on CRC function
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_crc_on(uint32_t spi_periph)
+{
+ SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCEN;
+}
+
+/*!
+ \brief turn off CRC function
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_crc_off(uint32_t spi_periph)
+{
+ SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_CRCEN);
+}
+
+/*!
+ \brief SPI next data is CRC value
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_crc_next(uint32_t spi_periph)
+{
+ SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCNT;
+}
+
+/*!
+ \brief get SPI CRC send value or receive value
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] crc: SPI crc value
+ only one parameter can be selected which is shown as below:
+ \arg SPI_CRC_TX: get transmit crc value
+ \arg SPI_CRC_RX: get receive crc value
+ \param[out] none
+ \retval 16-bit CRC value
+*/
+uint16_t spi_crc_get(uint32_t spi_periph, uint8_t crc)
+{
+ if(SPI_CRC_TX == crc){
+ return ((uint16_t)(SPI_TCRC(spi_periph)));
+ }else{
+ return ((uint16_t)(SPI_RCRC(spi_periph)));
+ }
+}
+
+/*!
+ \brief enable SPI TI mode
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_ti_mode_enable(uint32_t spi_periph)
+{
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_TMOD;
+}
+
+/*!
+ \brief disable SPI TI mode
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_ti_mode_disable(uint32_t spi_periph)
+{
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_TMOD);
+}
+
+/*!
+ \brief enable SPI NSS pulse mode
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_nssp_mode_enable(uint32_t spi_periph)
+{
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_NSSP;
+}
+
+/*!
+ \brief disable SPI NSS pulse mode
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_nssp_mode_disable(uint32_t spi_periph)
+{
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_NSSP);
+}
+
+/*!
+ \brief enable quad wire SPI
+ \param[in] spi_periph: SPIx(x=1)
+ \param[out] none
+ \retval none
+*/
+void qspi_enable(uint32_t spi_periph)
+{
+ SPI_QCTL(spi_periph) |= (uint32_t)SPI_QCTL_QMOD;
+}
+
+/*!
+ \brief disable quad wire SPI
+ \param[in] spi_periph: SPIx(x=1)
+ \param[out] none
+ \retval none
+*/
+void qspi_disable(uint32_t spi_periph)
+{
+ SPI_QCTL(spi_periph) &= (uint32_t)(~SPI_QCTL_QMOD);
+}
+
+/*!
+ \brief enable quad wire SPI write
+ \param[in] spi_periph: SPIx(x=1)
+ \param[out] none
+ \retval none
+*/
+void qspi_write_enable(uint32_t spi_periph)
+{
+ SPI_QCTL(spi_periph) &= (uint32_t)(~SPI_QCTL_QRD);
+}
+
+/*!
+ \brief enable quad wire SPI read
+ \param[in] spi_periph: SPIx(x=1)
+ \param[out] none
+ \retval none
+*/
+void qspi_read_enable(uint32_t spi_periph)
+{
+ SPI_QCTL(spi_periph) |= (uint32_t)SPI_QCTL_QRD;
+}
+
+/*!
+ \brief enable SPI_IO2 and SPI_IO3 pin output
+ \param[in] spi_periph: SPIx(x=1)
+ \param[out] none
+ \retval none
+*/
+void qspi_io23_output_enable(uint32_t spi_periph)
+{
+ SPI_QCTL(spi_periph) |= (uint32_t)SPI_QCTL_IO23_DRV;
+}
+
+ /*!
+ \brief disable SPI_IO2 and SPI_IO3 pin output
+ \param[in] spi_periph: SPIx(x=1)
+ \param[out] none
+ \retval none
+*/
+ void qspi_io23_output_disable(uint32_t spi_periph)
+{
+ SPI_QCTL(spi_periph) &= (uint32_t)(~SPI_QCTL_IO23_DRV);
+}
+
+/*!
+ \brief enable SPI and I2S interrupt
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] interrupt: SPI/I2S interrupt
+ only one parameter can be selected which is shown as below:
+ \arg SPI_I2S_INT_TBE: transmit buffer empty interrupt
+ \arg SPI_I2S_INT_RBNE: receive buffer not empty interrupt
+ \arg SPI_I2S_INT_ERR: CRC error,configuration error,reception overrun error,
+ transmission underrun error and format error interrupt
+ \param[out] none
+ \retval none
+*/
+void spi_i2s_interrupt_enable(uint32_t spi_periph, uint8_t interrupt)
+{
+ switch(interrupt){
+ /* SPI/I2S transmit buffer empty interrupt */
+ case SPI_I2S_INT_TBE:
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_TBEIE;
+ break;
+ /* SPI/I2S receive buffer not empty interrupt */
+ case SPI_I2S_INT_RBNE:
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_RBNEIE;
+ break;
+ /* SPI/I2S error */
+ case SPI_I2S_INT_ERR:
+ SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_ERRIE;
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief disable SPI and I2S interrupt
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] interrupt: SPI/I2S interrupt
+ only one parameter can be selected which is shown as below:
+ \arg SPI_I2S_INT_TBE: transmit buffer empty interrupt
+ \arg SPI_I2S_INT_RBNE: receive buffer not empty interrupt
+ \arg SPI_I2S_INT_ERR: CRC error,configuration error,reception overrun error,
+ transmission underrun error and format error interrupt
+ \param[out] none
+ \retval none
+*/
+void spi_i2s_interrupt_disable(uint32_t spi_periph, uint8_t interrupt)
+{
+ switch(interrupt){
+ /* SPI/I2S transmit buffer empty interrupt */
+ case SPI_I2S_INT_TBE:
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_TBEIE);
+ break;
+ /* SPI/I2S receive buffer not empty interrupt */
+ case SPI_I2S_INT_RBNE:
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_RBNEIE);
+ break;
+ /* SPI/I2S error */
+ case SPI_I2S_INT_ERR:
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_ERRIE);
+ break;
+ default :
+ break;
+ }
+}
+
+/*!
+ \brief get SPI and I2S interrupt flag status
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] interrupt: SPI/I2S interrupt flag status
+ only one parameter can be selected which is shown as below:
+ \arg SPI_I2S_INT_FLAG_TBE: transmit buffer empty interrupt flag
+ \arg SPI_I2S_INT_FLAG_RBNE: receive buffer not empty interrupt flag
+ \arg SPI_I2S_INT_FLAG_RXORERR: overrun interrupt flag
+ \arg SPI_INT_FLAG_CONFERR: config error interrupt flag
+ \arg SPI_INT_FLAG_CRCERR: CRC error interrupt flag
+ \arg I2S_INT_FLAG_TXURERR: underrun error interrupt flag
+ \arg SPI_I2S_INT_FLAG_FERR: format error interrupt flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus spi_i2s_interrupt_flag_get(uint32_t spi_periph, uint8_t interrupt)
+{
+ uint32_t reg1 = SPI_STAT(spi_periph);
+ uint32_t reg2 = SPI_CTL1(spi_periph);
+
+ switch(interrupt){
+ /* SPI/I2S transmit buffer empty interrupt */
+ case SPI_I2S_INT_FLAG_TBE:
+ reg1 = reg1 & SPI_STAT_TBE;
+ reg2 = reg2 & SPI_CTL1_TBEIE;
+ break;
+ /* SPI/I2S receive buffer not empty interrupt */
+ case SPI_I2S_INT_FLAG_RBNE:
+ reg1 = reg1 & SPI_STAT_RBNE;
+ reg2 = reg2 & SPI_CTL1_RBNEIE;
+ break;
+ /* SPI/I2S overrun interrupt */
+ case SPI_I2S_INT_FLAG_RXORERR:
+ reg1 = reg1 & SPI_STAT_RXORERR;
+ reg2 = reg2 & SPI_CTL1_ERRIE;
+ break;
+ /* SPI config error interrupt */
+ case SPI_INT_FLAG_CONFERR:
+ reg1 = reg1 & SPI_STAT_CONFERR;
+ reg2 = reg2 & SPI_CTL1_ERRIE;
+ break;
+ /* SPI CRC error interrupt */
+ case SPI_INT_FLAG_CRCERR:
+ reg1 = reg1 & SPI_STAT_CRCERR;
+ reg2 = reg2 & SPI_CTL1_ERRIE;
+ break;
+ /* I2S underrun error interrupt */
+ case I2S_INT_FLAG_TXURERR:
+ reg1 = reg1 & SPI_STAT_TXURERR;
+ reg2 = reg2 & SPI_CTL1_ERRIE;
+ break;
+ /* SPI/I2S format error interrupt */
+ case SPI_I2S_INT_FLAG_FERR:
+ reg1 = reg1 & SPI_STAT_FERR;
+ reg2 = reg2 & SPI_CTL1_ERRIE;
+ break;
+ default :
+ break;
+ }
+ /*get SPI/I2S interrupt flag status */
+ if((0U != reg1) && (0U != reg2)){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief get SPI and I2S flag status
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[in] flag: SPI/I2S flag status
+ one or more parameters can be selected which are shown as below:
+ \arg SPI_FLAG_TBE: transmit buffer empty flag
+ \arg SPI_FLAG_RBNE: receive buffer not empty flag
+ \arg SPI_FLAG_TRANS: transmit on-going flag
+ \arg SPI_FLAG_RXORERR: receive overrun error flag
+ \arg SPI_FLAG_CONFERR: mode config error flag
+ \arg SPI_FLAG_CRCERR: CRC error flag
+ \arg SPI_FLAG_FERR: format error interrupt flag
+ \arg I2S_FLAG_TBE: transmit buffer empty flag
+ \arg I2S_FLAG_RBNE: receive buffer not empty flag
+ \arg I2S_FLAG_TRANS: transmit on-going flag
+ \arg I2S_FLAG_RXORERR: overrun error flag
+ \arg I2S_FLAG_TXURERR: underrun error flag
+ \arg I2S_FLAG_CH: channel side flag
+ only for SPI1:
+ \arg SPI_TXLVL_EMPTY: SPI TXFIFO is empty
+ \arg SPI_TXLVL_QUARTER_FULL: SPI TXFIFO is a quarter of full
+ \arg SPI_TXLVL_HAlF_FULL: SPI TXFIFO is a half of full
+ \arg SPI_TXLVL_FULL: SPI TXFIFO is full
+ \arg SPI_RXLVL_EMPTY: SPI RXFIFO is empty
+ \arg SPI_RXLVL_QUARTER_FULL: SPI RXFIFO is a quarter of full
+ \arg SPI_RXLVL_HAlF_FULL: SPI RXFIFO is a half of full
+ \arg SPI_RXLVL_FULL: SPI RXFIFO is full
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus spi_i2s_flag_get(uint32_t spi_periph, uint32_t flag)
+{
+ if(RESET != (SPI_STAT(spi_periph) & flag)){
+ return SET;
+ }else{
+ if(SPI1 == spi_periph){
+ /* check TXFIFO is empty or not */
+ if(SPI_TXLVL_EMPTY == flag){
+ if(RESET != (SPI_STAT(spi_periph) & SPI_TXLVL_EMPTY_MASK)){
+ return RESET;
+ }else{
+ return SET;
+ }
+ }
+ /* check RXFIFO is empty or not */
+ if(SPI_RXLVL_EMPTY == flag){
+ if(RESET != (SPI_STAT(spi_periph) & SPI_RXLVL_EMPTY_MASK)){
+ return RESET;
+ }else{
+ return SET;
+ }
+ }
+ }
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear SPI CRC error flag status
+ \param[in] spi_periph: SPIx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void spi_crc_error_clear(uint32_t spi_periph)
+{
+ SPI_STAT(spi_periph) &= (uint32_t)(~SPI_FLAG_CRCERR);
+}
+
+/*!
+ \brief configure SPI1 access size to FIFO(8bit or 16bit)
+ \param[in] spi_periph: SPIx(x=1)
+ \param[in] fifo_access_size: byte access enable
+ only one parameter can be selected which is shown as below:
+ \arg SPI_HALFWORD_ACCESS: half-word access to FIFO
+ \arg SPI_BYTE_ACCESS: byte access to FIFO
+ \param[out] none
+ \retval none
+*/
+void spi_fifo_access_size_config(uint32_t spi_periph, uint16_t fifo_access_size)
+{
+ /* clear SPI_CTL1_BYTEN bit */
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_BYTEN);
+ /* confige SPI_CTL1_BYTEN bit */
+ SPI_CTL1(spi_periph) |= (uint32_t)fifo_access_size;
+}
+
+/*!
+ \brief configure SPI1 total number of data to transmit by DMA is odd or not
+ \param[in] spi_periph: SPIx(x=1)
+ \param[in] odd: odd bytes in TX DMA channel
+ only one parameter can be selected which is shown as below:
+ \arg SPI_TXDMA_EVEN: number of byte in TX DMA channel is even
+ \arg SPI_TXDMA_ODD: number of byte in TX DMA channel is odd
+ \param[out] none
+ \retval none
+*/
+void spi_transmit_odd_config(uint32_t spi_periph, uint16_t odd)
+{
+ /* clear SPI_CTL1_TXDMA_ODD bit */
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_TXDMA_ODD);
+ /* confige SPI_CTL1_TXDMA_ODD bit */
+ SPI_CTL1(spi_periph) |= (uint32_t)odd;
+}
+
+/*!
+ \brief configure SPI1 total number of data to receive by DMA is odd or not
+ \param[in] spi_periph: SPIx(x=1)
+ \param[in] odd: odd bytes in RX DMA channel
+ only one parameter can be selected which is shown as below:
+ \arg SPI_RXDMA_EVEN: number of bytes in RX DMA channel is even
+ \arg SPI_RXDMA_ODD: number of bytes in RX DMA channel is odd
+ \param[out] none
+ \retval none
+*/
+void spi_receive_odd_config(uint32_t spi_periph, uint16_t odd)
+{
+ /* clear SPI_CTL1_RXDMA_ODD bit */
+ SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_RXDMA_ODD);
+ /* confige SPI_CTL1_RXDMA_ODD bit */
+ SPI_CTL1(spi_periph) |= (uint32_t)odd;
+}
+
+/*!
+ \brief set CRC length
+ \param[in] spi_periph: SPIx(x=1)
+ \param[in] crc_length: CRC length
+ only one parameter can be selected which is shown as below:
+ \arg SPI_CRC_8BIT: CRC length is 8 bits
+ \arg SPI_CRC_16BIT: CRC length is 16 bits
+ \param[out] none
+ \retval none
+*/
+void spi_crc_length_set(uint32_t spi_periph, uint16_t crc_length)
+{
+ /* clear SPI_CTL0_CRCL bit */
+ SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_CRCL);
+ /* confige SPI_CTL0_CRCL bit */
+ SPI_CTL0(spi_periph) |= (uint32_t)crc_length;
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_syscfg.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_syscfg.c
new file mode 100644
index 0000000000..a0e79e4176
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_syscfg.c
@@ -0,0 +1,207 @@
+ /*!
+ \file gd32e230_syscfg.h
+ \brief SYSCFG driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_syscfg.h"
+
+/*!
+ \brief reset the SYSCFG registers
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void syscfg_deinit(void)
+{
+ rcu_periph_reset_enable(RCU_CFGCMPRST);
+ rcu_periph_reset_disable(RCU_CFGCMPRST);
+}
+
+/*!
+ \brief enable the DMA channels remapping
+ \param[in] syscfg_dma_remap: specify the DMA channels to remap
+ \arg SYSCFG_DMA_REMAP_TIMER16: remap TIMER16 channel0 and UP DMA requests to channel1(defaut channel0)
+ \arg SYSCFG_DMA_REMAP_TIMER15: remap TIMER15 channel2 and UP DMA requests to channel3(defaut channel2)
+ \arg SYSCFG_DMA_REMAP_USART0RX: remap USART0 Rx DMA request to channel4(default channel2)
+ \arg SYSCFG_DMA_REMAP_USART0TX: remap USART0 Tx DMA request to channel3(default channel1)
+ \arg SYSCFG_DMA_REMAP_ADC: remap ADC DMA requests from channel0 to channel1
+ \arg SYSCFG_PA11_REMAP_PA12: remap PA11 PA12
+ \param[out] none
+ \retval none
+*/
+void syscfg_dma_remap_enable(uint32_t syscfg_dma_remap)
+{
+ SYSCFG_CFG0 |= syscfg_dma_remap;
+}
+
+/*!
+ \brief disable the DMA channels remapping
+ \param[in] syscfg_dma_remap: specify the DMA channels to remap
+ \arg SYSCFG_DMA_REMAP_TIMER16: remap TIMER16 channel0 and UP DMA requests to channel1(defaut channel0)
+ \arg SYSCFG_DMA_REMAP_TIMER15: remap TIMER15 channel2 and UP DMA requests to channel3(defaut channel2)
+ \arg SYSCFG_DMA_REMAP_USART0RX: remap USART0 Rx DMA request to channel4(default channel2)
+ \arg SYSCFG_DMA_REMAP_USART0TX: remap USART0 Tx DMA request to channel3(default channel1)
+ \arg SYSCFG_DMA_REMAP_ADC: remap ADC DMA requests from channel0 to channel1
+ \arg SYSCFG_PA11_REMAP_PA12: remap PA11 PA12
+ \param[out] none
+ \retval none
+*/
+void syscfg_dma_remap_disable(uint32_t syscfg_dma_remap)
+{
+ SYSCFG_CFG0 &= ~syscfg_dma_remap;
+}
+
+/*!
+ \brief enable PB9 high current capability
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void syscfg_high_current_enable(void)
+{
+ SYSCFG_CFG0 |= SYSCFG_HIGH_CURRENT_ENABLE;
+}
+
+/*!
+ \brief disable PB9 high current capability
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void syscfg_high_current_disable(void)
+{
+ SYSCFG_CFG0 &= SYSCFG_HIGH_CURRENT_DISABLE;
+}
+
+/*!
+ \brief configure the GPIO pin as EXTI Line
+ \param[in] exti_port: specify the GPIO port used in EXTI
+ \arg EXTI_SOURCE_GPIOx(x = A,B,C,F): EXTI GPIO port
+ \param[in] exti_pin: specify the EXTI line
+ \arg EXTI_SOURCE_PINx(GPIOA x = 0..15,GPIOB x = 0..15,GPIOC x = 13..15,GPIOF x = 0.1.6.7): EXTI GPIO pin
+ \param[out] none
+ \retval none
+*/
+void syscfg_exti_line_config(uint8_t exti_port, uint8_t exti_pin)
+{
+ uint32_t clear_exti_mask = ~((uint32_t)EXTI_SS_MASK << (EXTI_SS_MSTEP(exti_pin)));
+ uint32_t config_exti_mask = ((uint32_t)exti_port) << (EXTI_SS_MSTEP(exti_pin));
+
+ switch(exti_pin / EXTI_SS_JSTEP){
+ case EXTISS0:
+ /* clear EXTI source line(0..3) */
+ SYSCFG_EXTISS0 &= clear_exti_mask;
+ /* configure EXTI soure line(0..3) */
+ SYSCFG_EXTISS0 |= config_exti_mask;
+ break;
+ case EXTISS1:
+ /* clear EXTI soure line(4..7) */
+ SYSCFG_EXTISS1 &= clear_exti_mask;
+ /* configure EXTI soure line(4..7) */
+ SYSCFG_EXTISS1 |= config_exti_mask;
+ break;
+ case EXTISS2:
+ /* clear EXTI soure line(8..11) */
+ SYSCFG_EXTISS2 &= clear_exti_mask;
+ /* configure EXTI soure line(8..11) */
+ SYSCFG_EXTISS2 |= config_exti_mask;
+ break;
+ case EXTISS3:
+ /* clear EXTI soure line(12..15) */
+ SYSCFG_EXTISS3 &= clear_exti_mask;
+ /* configure EXTI soure line(12..15) */
+ SYSCFG_EXTISS3 |= config_exti_mask;
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief connect TIMER0/14/15/16 break input to the selected parameter
+ \param[in] syscfg_lock: Specify the parameter to be connected
+ \arg SYSCFG_LOCK_LOCKUP: Cortex-M23 lockup output connected to the break input
+ \arg SYSCFG_LOCK_SRAM_PARITY_ERROR: SRAM_PARITY check error connected to the break input
+ \arg SYSCFG_LOCK_LVD: LVD interrupt connected to the break input
+ \param[out] none
+ \retval none
+*/
+void syscfg_lock_config(uint32_t syscfg_lock)
+{
+ SYSCFG_CFG2 |= syscfg_lock;
+}
+
+/*!
+ \brief set the wait state counter value
+ \param[in] irq_latency: IRQ_LATENCY value (0x00 - 0xFF)
+ \param[out] none
+ \retval none
+*/
+void irq_latency_set(uint8_t irq_latency)
+{
+ uint32_t reg;
+
+ reg = SYSCFG_CPU_IRQ_LAT &(~(uint32_t)SYSCFG_CPU_IRQ_LAT_IRQ_LATENCY);
+ reg |= (uint32_t)(IRQ_LATENCY(irq_latency));
+
+ SYSCFG_CPU_IRQ_LAT = (uint32_t)reg;
+}
+/*!
+ \brief check if the specified flag in SYSCFG_CFG2 is set or not.
+ \param[in] syscfg_flag: specify the flag in SYSCFG_CFG2 to check.
+ \arg SYSCFG_SRAM_PCEF: SRAM parity check error flag.
+ \param[out] none
+ \retval the syscfg_flag state returned (SET or RESET).
+ */
+FlagStatus syscfg_flag_get(uint32_t syscfg_flag)
+{
+ if((SYSCFG_CFG2 & syscfg_flag) != (uint32_t)RESET){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear the flag in SYSCFG_CFG2 by writing 1.
+ \param[in] syscfg_flag: Specify the flag in SYSCFG_CFG2 to clear.
+ \arg SYSCFG_SRAM_PCEF: SRAM parity check error flag.
+ \param[out] none
+ \retval none
+*/
+void syscfg_flag_clear(uint32_t syscfg_flag)
+{
+ SYSCFG_CFG2 |= (uint32_t) syscfg_flag;
+}
+
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_timer.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_timer.c
new file mode 100644
index 0000000000..3fce2c47f8
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_timer.c
@@ -0,0 +1,2059 @@
+/*!
+ \file gd32e230_timer.c
+ \brief TIMER driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_timer.h"
+
+/* TIMER init parameter mask */
+#define ALIGNEDMODE_MASK ((uint32_t)0x00000060U) /*!< TIMER init parameter aligne dmode mask */
+#define COUNTERDIRECTION_MASK ((uint32_t)0x00000010U) /*!< TIMER init parameter counter direction mask */
+#define CLOCKDIVISION_MASK ((uint32_t)0x00000300U) /*!< TIMER init parameter clock division value mask */
+
+/*!
+ \brief deinit a TIMER
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval none
+*/
+void timer_deinit(uint32_t timer_periph)
+{
+ switch(timer_periph){
+ case TIMER0:
+ /* reset TIMER0 */
+ rcu_periph_reset_enable(RCU_TIMER0RST);
+ rcu_periph_reset_disable(RCU_TIMER0RST);
+ break;
+ case TIMER2:
+ /* reset TIMER2 */
+ rcu_periph_reset_enable(RCU_TIMER2RST);
+ rcu_periph_reset_disable(RCU_TIMER2RST);
+ break;
+ case TIMER5:
+ /* reset TIMER5 */
+ rcu_periph_reset_enable(RCU_TIMER5RST);
+ rcu_periph_reset_disable(RCU_TIMER5RST);
+ break;
+ case TIMER13:
+ /* reset TIMER13 */
+ rcu_periph_reset_enable(RCU_TIMER13RST);
+ rcu_periph_reset_disable(RCU_TIMER13RST);
+ break;
+ case TIMER14:
+ /* reset TIMER14 */
+ rcu_periph_reset_enable(RCU_TIMER14RST);
+ rcu_periph_reset_disable(RCU_TIMER14RST);
+ break;
+ case TIMER15:
+ /* reset TIMER15 */
+ rcu_periph_reset_enable(RCU_TIMER15RST);
+ rcu_periph_reset_disable(RCU_TIMER15RST);
+ break;
+ case TIMER16:
+ /* reset TIMER16 */
+ rcu_periph_reset_enable(RCU_TIMER16RST);
+ rcu_periph_reset_disable(RCU_TIMER16RST);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief initialize TIMER init parameter struct with a default value
+ \param[in] initpara: init parameter struct
+ \param[out] none
+ \retval none
+*/
+void timer_struct_para_init(timer_parameter_struct* initpara)
+{
+ /* initialize the init parameter struct member with the default value */
+ initpara->prescaler = 0U;
+ initpara->alignedmode = TIMER_COUNTER_EDGE;
+ initpara->counterdirection = TIMER_COUNTER_UP;
+ initpara->period = 65535U;
+ initpara->clockdivision = TIMER_CKDIV_DIV1;
+ initpara->repetitioncounter = 0U;
+}
+
+/*!
+ \brief initialize TIMER counter
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[in] initpara: init parameter struct
+ prescaler: prescaler value of the counter clock, 0~65535
+ alignedmode: TIMER_COUNTER_EDGE, TIMER_COUNTER_CENTER_DOWN, TIMER_COUNTER_CENTER_UP, TIMER_COUNTER_CENTER_BOTH
+ counterdirection: TIMER_COUNTER_UP, TIMER_COUNTER_DOWN
+ period: counter auto reload value, 0~65535
+ clockdivision: TIMER_CKDIV_DIV1, TIMER_CKDIV_DIV2, TIMER_CKDIV_DIV4
+ repetitioncounter: counter repetition value, 0~255
+ \param[out] none
+ \retval none
+*/
+void timer_init(uint32_t timer_periph, timer_parameter_struct* initpara)
+{
+ /* configure the counter prescaler value */
+ TIMER_PSC(timer_periph) = (uint16_t)initpara->prescaler;
+
+ /* configure the counter direction and aligned mode */
+ if((TIMER0 == timer_periph) || (TIMER2 == timer_periph)){
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)(TIMER_CTL0_DIR|TIMER_CTL0_CAM);
+ TIMER_CTL0(timer_periph) |= (uint32_t)initpara->alignedmode;
+ TIMER_CTL0(timer_periph) |= (uint32_t)initpara->counterdirection;
+ }
+
+ /* configure the autoreload value */
+ TIMER_CAR(timer_periph) = (uint32_t)initpara->period;
+
+ if((TIMER0 == timer_periph) || (TIMER2 == timer_periph) || (TIMER13 == timer_periph)
+ || (TIMER14 == timer_periph) || (TIMER15 == timer_periph) || (TIMER16 == timer_periph)){
+ /* reset the CKDIV bit */
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_CKDIV;
+ TIMER_CTL0(timer_periph) |= (uint32_t)initpara->clockdivision;
+ }
+
+ if((TIMER0 == timer_periph) || (TIMER14 == timer_periph) || (TIMER15 == timer_periph) || (TIMER16 == timer_periph)){
+ /* configure the repetition counter value */
+ TIMER_CREP(timer_periph) = (uint32_t)initpara->repetitioncounter;
+ }
+
+ /* generate an update event */
+ TIMER_SWEVG(timer_periph) |= (uint32_t)TIMER_SWEVG_UPG;
+}
+
+/*!
+ \brief enable a TIMER
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval none
+*/
+void timer_enable(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_CEN;
+}
+
+/*!
+ \brief disable a TIMER
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval none
+*/
+void timer_disable(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_CEN;
+}
+
+/*!
+ \brief enable the auto reload shadow function
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval none
+*/
+void timer_auto_reload_shadow_enable(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_ARSE;
+}
+
+/*!
+ \brief disable the auto reload shadow function
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval none
+*/
+void timer_auto_reload_shadow_disable(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_ARSE;
+}
+
+/*!
+ \brief enable the update event
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval none
+*/
+void timer_update_event_enable(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_UPDIS;
+}
+
+/*!
+ \brief disable the update event
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval none
+*/
+void timer_update_event_disable(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) |= (uint32_t) TIMER_CTL0_UPDIS;
+}
+
+/*!
+ \brief set TIMER counter alignment mode
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[in] aligned:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_COUNTER_EDGE: edge-aligned mode
+ \arg TIMER_COUNTER_CENTER_DOWN: center-aligned and counting down assert mode
+ \arg TIMER_COUNTER_CENTER_UP: center-aligned and counting up assert mode
+ \arg TIMER_COUNTER_CENTER_BOTH: center-aligned and counting up/down assert mode
+ \param[out] none
+ \retval none
+*/
+void timer_counter_alignment(uint32_t timer_periph, uint16_t aligned)
+{
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_CAM;
+ TIMER_CTL0(timer_periph) |= (uint32_t)aligned;
+}
+
+/*!
+ \brief set TIMER counter up direction
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[out] none
+ \retval none
+*/
+void timer_counter_up_direction(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_DIR;
+}
+
+/*!
+ \brief set TIMER counter down direction
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[out] none
+ \retval none
+*/
+void timer_counter_down_direction(uint32_t timer_periph)
+{
+ TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_DIR;
+}
+
+/*!
+ \brief configure TIMER prescaler
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[in] prescaler: prescaler value,0~65535
+ \param[in] pscreload: prescaler reload mode
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_PSC_RELOAD_NOW: the prescaler is loaded right now
+ \arg TIMER_PSC_RELOAD_UPDATE: the prescaler is loaded at the next update event
+ \param[out] none
+ \retval none
+*/
+void timer_prescaler_config(uint32_t timer_periph, uint16_t prescaler, uint8_t pscreload)
+{
+ TIMER_PSC(timer_periph) = (uint32_t)prescaler;
+
+ if(TIMER_PSC_RELOAD_NOW == pscreload){
+ TIMER_SWEVG(timer_periph) |= (uint32_t)TIMER_SWEVG_UPG;
+ }
+}
+
+/*!
+ \brief configure TIMER repetition register value
+ \param[in] timer_periph: TIMERx(x=0,15,16)
+ \param[in] repetition: the counter repetition value,0~255
+ \param[out] none
+ \retval none
+*/
+void timer_repetition_value_config(uint32_t timer_periph, uint16_t repetition)
+{
+ TIMER_CREP(timer_periph) = (uint32_t)repetition;
+}
+
+/*!
+ \brief configure TIMER autoreload register value
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[in] autoreload: the counter auto-reload value,0~65535
+ \param[out] none
+ \retval none
+*/
+void timer_autoreload_value_config(uint32_t timer_periph, uint16_t autoreload)
+{
+ TIMER_CAR(timer_periph) = (uint32_t)autoreload;
+}
+
+/*!
+ \brief configure TIMER counter register value
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[in] counter: the counter value,0~65535
+ \param[out] none
+ \retval none
+*/
+void timer_counter_value_config(uint32_t timer_periph, uint16_t counter)
+{
+ TIMER_CNT(timer_periph) = (uint32_t)counter;
+}
+
+/*!
+ \brief read TIMER counter value
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval counter value
+*/
+uint32_t timer_counter_read(uint32_t timer_periph)
+{
+ uint32_t count_value = 0U;
+ count_value = TIMER_CNT(timer_periph);
+ return (count_value);
+}
+
+/*!
+ \brief read TIMER prescaler value
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[out] none
+ \retval prescaler register value
+*/
+uint16_t timer_prescaler_read(uint32_t timer_periph)
+{
+ uint16_t prescaler_value = 0U;
+ prescaler_value = (uint16_t)(TIMER_PSC(timer_periph));
+ return (prescaler_value);
+}
+
+/*!
+ \brief configure TIMER single pulse mode
+ \param[in] timer_periph: TIMERx(x=0,2,5,14..16)
+ \param[in] spmode:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_SP_MODE_SINGLE: single pulse mode
+ \arg TIMER_SP_MODE_REPETITIVE: repetitive pulse mode
+ \param[out] none
+ \retval none
+*/
+void timer_single_pulse_mode_config(uint32_t timer_periph, uint32_t spmode)
+{
+ if(TIMER_SP_MODE_SINGLE == spmode){
+ TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_SPM;
+ }else if(TIMER_SP_MODE_REPETITIVE == spmode){
+ TIMER_CTL0(timer_periph) &= ~((uint32_t)TIMER_CTL0_SPM);
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief configure TIMER update source
+ \param[in] timer_periph: TIMERx(x=0,2,5,13..16)
+ \param[in] update:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_UPDATE_SRC_GLOBAL: update generate by setting of UPG bit or the counter overflow/underflow,or the slave mode controller trigger
+ \arg TIMER_UPDATE_SRC_REGULAR: update generate only by counter overflow/underflow
+ \param[out] none
+ \retval none
+*/
+void timer_update_source_config(uint32_t timer_periph, uint32_t update)
+{
+ if(TIMER_UPDATE_SRC_REGULAR == update){
+ TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_UPS;
+ }else if(TIMER_UPDATE_SRC_GLOBAL == update){
+ TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_UPS;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief configure TIMER OCPRE clear source selection
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[in] ocpreclear:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OCPRE_CLEAR_SOURCE_CLR: OCPRE_CLR_INT is connected to the OCPRE_CLR input
+ \arg TIMER_OCPRE_CLEAR_SOURCE_ETIF: OCPRE_CLR_INT is connected to ETIF
+ \param[out] none
+ \retval none
+*/
+void timer_ocpre_clear_source_config(uint32_t timer_periph, uint8_t ocpreclear)
+{
+ if(TIMER_OCPRE_CLEAR_SOURCE_ETIF == ocpreclear){
+ TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SMCFG_OCRC;
+ }else if(TIMER_OCPRE_CLEAR_SOURCE_CLR == ocpreclear){
+ TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_OCRC;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief enable the TIMER interrupt
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] interrupt: timer interrupt enable source
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_INT_UP: update interrupt enable, TIMERx(x=0,2,5,13..16)
+ \arg TIMER_INT_CH0: channel 0 interrupt enable, TIMERx(x=0,2,13..16)
+ \arg TIMER_INT_CH1: channel 1 interrupt enable, TIMERx(x=0,2,14)
+ \arg TIMER_INT_CH2: channel 2 interrupt enable, TIMERx(x=0,2)
+ \arg TIMER_INT_CH3: channel 3 interrupt enable , TIMERx(x=0,2)
+ \arg TIMER_INT_CMT: commutation interrupt enable, TIMERx(x=0,14..16)
+ \arg TIMER_INT_TRG: trigger interrupt enable, TIMERx(x=0,2,14)
+ \arg TIMER_INT_BRK: break interrupt enable, TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_interrupt_enable(uint32_t timer_periph, uint32_t interrupt)
+{
+ TIMER_DMAINTEN(timer_periph) |= (uint32_t) interrupt;
+}
+
+/*!
+ \brief disable the TIMER interrupt
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] interrupt: timer interrupt source disable
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_INT_UP: update interrupt enable, TIMERx(x=0,2,5,13..16)
+ \arg TIMER_INT_CH0: channel 0 interrupt enable, TIMERx(x=0,2,13..16)
+ \arg TIMER_INT_CH1: channel 1 interrupt enable, TIMERx(x=0,2,14)
+ \arg TIMER_INT_CH2: channel 2 interrupt enable, TIMERx(x=0,2)
+ \arg TIMER_INT_CH3: channel 3 interrupt enable , TIMERx(x=0,2)
+ \arg TIMER_INT_CMT: commutation interrupt enable, TIMERx(x=0,14..16)
+ \arg TIMER_INT_TRG: trigger interrupt enable, TIMERx(x=0,2,14)
+ \arg TIMER_INT_BRK: break interrupt enable, TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_interrupt_disable(uint32_t timer_periph, uint32_t interrupt)
+{
+ TIMER_DMAINTEN(timer_periph) &= (~(uint32_t)interrupt);
+}
+
+/*!
+ \brief get timer interrupt flag
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] interrupt: the timer interrupt bits
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_INT_FLAG_UP: update interrupt flag,TIMERx(x=0,2,5,13..16)
+ \arg TIMER_INT_FLAG_CH0: channel 0 interrupt flag,TIMERx(x=0,2,13..16)
+ \arg TIMER_INT_FLAG_CH1: channel 1 interrupt flag,TIMERx(x=0,2,14)
+ \arg TIMER_INT_FLAG_CH2: channel 2 interrupt flag,TIMERx(x=0,2)
+ \arg TIMER_INT_FLAG_CH3: channel 3 interrupt flag,TIMERx(x=0,2)
+ \arg TIMER_INT_FLAG_CMT: channel commutation interrupt flag,TIMERx(x=0,14..16)
+ \arg TIMER_INT_FLAG_TRG: trigger interrupt flag,TIMERx(x=0,2,14)
+ \arg TIMER_INT_FLAG_BRK: break interrupt flag,TIMERx(x=0,14..16)
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus timer_interrupt_flag_get(uint32_t timer_periph, uint32_t interrupt)
+{
+ uint32_t val;
+ val = (TIMER_DMAINTEN(timer_periph) & interrupt);
+ if((RESET != (TIMER_INTF(timer_periph) & interrupt) ) && (RESET != val)){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear TIMER interrupt flag
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] interrupt: the timer interrupt bits
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_INT_FLAG_UP: update interrupt flag, TIMERx(x=0,2,5,13..16)
+ \arg TIMER_INT_FLAG_CH0: channel 0 interrupt flag, TIMERx(x=0,2,13..16)
+ \arg TIMER_INT_FLAG_CH1: channel 1 interrupt flag, TIMERx(x=0,2,14)
+ \arg TIMER_INT_FLAG_CH2: channel 2 interrupt flag, TIMERx(x=0,2)
+ \arg TIMER_INT_FLAG_CH3: channel 3 interrupt flag, TIMERx(x=0,2)
+ \arg TIMER_INT_FLAG_CMT: channel commutation interrupt flag, TIMERx(x=0,14..16)
+ \arg TIMER_INT_FLAG_TRG: trigger interrupt flag, TIMERx(x=0,2,14)
+ \arg TIMER_INT_FLAG_BRK: break interrupt flag, TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_interrupt_flag_clear(uint32_t timer_periph, uint32_t interrupt)
+{
+ TIMER_INTF(timer_periph) &= (~(uint32_t)interrupt);
+}
+
+/*!
+ \brief get TIMER flags
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] flag: the timer interrupt flags
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_FLAG_UP: update flag, TIMERx(x=0,2,5,13..16)
+ \arg TIMER_FLAG_CH0: channel 0 flag, TIMERx(x=0,2,13..16)
+ \arg TIMER_FLAG_CH1: channel 1 flag, TIMERx(x=0,2,14)
+ \arg TIMER_FLAG_CH2: channel 2 flag, TIMERx(x=0,2)
+ \arg TIMER_FLAG_CH3: channel 3 flag, TIMERx(x=0,2)
+ \arg TIMER_FLAG_CMT: channel control update flag, TIMERx(x=0,14..16)
+ \arg TIMER_FLAG_TRG: trigger flag, TIMERx(x=0,2,14)
+ \arg TIMER_FLAG_BRK: break flag,TIMERx(x=0,14..16)
+ \arg TIMER_FLAG_CH0O: channel 0 overcapture flag, TIMERx(x=0,2,13..16)
+ \arg TIMER_FLAG_CH1O: channel 1 overcapture flag, TIMERx(x=0,2,14)
+ \arg TIMER_FLAG_CH2O: channel 2 overcapture flag, TIMERx(x=0,2)
+ \arg TIMER_FLAG_CH3O: channel 3 overcapture flag, TIMERx(x=0,2)
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus timer_flag_get(uint32_t timer_periph, uint32_t flag)
+{
+ if(RESET != (TIMER_INTF(timer_periph) & flag)){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear TIMER flags
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] flag: the timer interrupt flags
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_FLAG_UP: update flag, TIMERx(x=0,2,5,13..16)
+ \arg TIMER_FLAG_CH0: channel 0 flag, TIMERx(x=0,2,13..16)
+ \arg TIMER_FLAG_CH1: channel 1 flag, TIMERx(x=0,2,14)
+ \arg TIMER_FLAG_CH2: channel 2 flag, TIMERx(x=0,2)
+ \arg TIMER_FLAG_CH3: channel 3 flag, TIMERx(x=0,2)
+ \arg TIMER_FLAG_CMT: channel control update flag, TIMERx(x=0,14..16)
+ \arg TIMER_FLAG_TRG: trigger flag, TIMERx(x=0,2,14)
+ \arg TIMER_FLAG_BRK: break flag,TIMERx(x=0,14..16)
+ \arg TIMER_FLAG_CH0O: channel 0 overcapture flag, TIMERx(x=0,2,13..16)
+ \arg TIMER_FLAG_CH1O: channel 1 overcapture flag, TIMERx(x=0,2,14)
+ \arg TIMER_FLAG_CH2O: channel 2 overcapture flag, TIMERx(x=0,2)
+ \arg TIMER_FLAG_CH3O: channel 3 overcapture flag, TIMERx(x=0,2)
+ \param[out] none
+ \retval none
+*/
+void timer_flag_clear(uint32_t timer_periph, uint32_t flag)
+{
+ TIMER_INTF(timer_periph) &= (~(uint32_t)flag);
+}
+
+/*!
+ \brief enable the TIMER DMA
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] dma: specify which DMA to enable
+ one or more parameters can be selected which is shown as below:
+ \arg TIMER_DMA_UPD: update DMA, TIMERx(x=0,2,5,14..16)
+ \arg TIMER_DMA_CH0D: channel 0 DMA request, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMA_CH1D: channel 1 DMA request, TIMERx(x=0,2,14)
+ \arg TIMER_DMA_CH2D: channel 2 DMA request, TIMERx(x=0,2)
+ \arg TIMER_DMA_CH3D: channel 3 DMA request, TIMERx(x=0,2)
+ \arg TIMER_DMA_CMTD: commutation DMA request, TIMERx(x=0,14)
+ \arg TIMER_DMA_TRGD: trigger DMA request, TIMERx(x=0,2,14)
+ \param[out] none
+ \retval none
+*/
+void timer_dma_enable(uint32_t timer_periph, uint16_t dma)
+{
+ TIMER_DMAINTEN(timer_periph) |= (uint32_t) dma;
+}
+
+/*!
+ \brief disable the TIMER DMA
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] dma: specify which DMA to disable
+ one or more parameters can be selected which are shown as below:
+ \arg TIMER_DMA_UPD: update DMA, TIMERx(x=0,2,5,14..16)
+ \arg TIMER_DMA_CH0D: channel 0 DMA request, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMA_CH1D: channel 1 DMA request, TIMERx(x=0,2,14)
+ \arg TIMER_DMA_CH2D: channel 2 DMA request, TIMERx(x=0,2)
+ \arg TIMER_DMA_CH3D: channel 3 DMA request, TIMERx(x=0,2)
+ \arg TIMER_DMA_CMTD: commutation DMA request , TIMERx(x=0,14)
+ \arg TIMER_DMA_TRGD: trigger DMA request, TIMERx(x=0,2,14)
+ \param[out] none
+ \retval none
+*/
+void timer_dma_disable(uint32_t timer_periph, uint16_t dma)
+{
+ TIMER_DMAINTEN(timer_periph) &= (~(uint32_t)(dma));
+}
+
+/*!
+ \brief channel DMA request source selection
+ \param[in] timer_periph: TIMERx(x=0,2,14..16)
+ \param[in] dma_request: channel DMA request source selection
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_DMAREQUEST_CHANNELEVENT: DMA request of channel y is sent when channel y event occurs
+ \arg TIMER_DMAREQUEST_UPDATEEVENT: DMA request of channel y is sent when update event occurs
+ \param[out] none
+ \retval none
+*/
+void timer_channel_dma_request_source_select(uint32_t timer_periph, uint8_t dma_request)
+{
+ if(TIMER_DMAREQUEST_UPDATEEVENT == dma_request){
+ TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_DMAS;
+ }else if(TIMER_DMAREQUEST_CHANNELEVENT == dma_request){
+ TIMER_CTL1(timer_periph) &= ~(uint32_t)TIMER_CTL1_DMAS;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief configure the TIMER DMA transfer
+ \param[in] timer_periph: TIMERx(x=0,2,14..16)
+ \param[in] dma_baseaddr:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_DMACFG_DMATA_CTL0: DMA transfer address is TIMER_CTL0, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_CTL1: DMA transfer address is TIMER_CTL1, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_SMCFG: DMA transfer address is TIMER_SMCFG, TIMERx(x=0,2,14)
+ \arg TIMER_DMACFG_DMATA_DMAINTEN: DMA transfer address is TIMER_DMAINTEN, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_INTF: DMA transfer address is TIMER_INTF, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_SWEVG: DMA transfer address is TIMER_SWEVG, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_CHCTL0: DMA transfer address is TIMER_CHCTL0, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_CHCTL1: DMA transfer address is TIMER_CHCTL1, TIMERx(x=0,2)
+ \arg TIMER_DMACFG_DMATA_CHCTL2: DMA transfer address is TIMER_CHCTL2, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_CNT: DMA transfer address is TIMER_CNT, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_PSC: DMA transfer address is TIMER_PSC, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_CAR: DMA transfer address is TIMER_CAR, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_CREP: DMA transfer address is TIMER_CREP, TIMERx(x=0,14..16)
+ \arg TIMER_DMACFG_DMATA_CH0CV: DMA transfer address is TIMER_CH0CV, TIMERx(x=0,2,14..16)
+ \arg TIMER_DMACFG_DMATA_CH1CV: DMA transfer address is TIMER_CH1CV, TIMERx(x=0,2,14)
+ \arg TIMER_DMACFG_DMATA_CH2CV: DMA transfer address is TIMER_CH2CV, TIMERx(x=0,2)
+ \arg TIMER_DMACFG_DMATA_CH3CV: DMA transfer address is TIMER_CH3CV, TIMERx(x=0,2)
+ \arg TIMER_DMACFG_DMATA_CCHP: DMA transfer address is TIMER_CCHP, TIMERx(x=0,14..16)
+ \arg TIMER_DMACFG_DMATA_DMACFG: DMA transfer address is TIMER_DMACFG, TIMERx(x=0,2,14..16)
+ \param[in] dma_lenth:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_DMACFG_DMATC_xTRANSFER(x=1..18): DMA transfer x time
+ \param[out] none
+ \retval none
+*/
+void timer_dma_transfer_config(uint32_t timer_periph, uint32_t dma_baseaddr, uint32_t dma_lenth)
+{
+ TIMER_DMACFG(timer_periph) &= (~(uint32_t)(TIMER_DMACFG_DMATA | TIMER_DMACFG_DMATC));
+ TIMER_DMACFG(timer_periph) |= (uint32_t)(dma_baseaddr | dma_lenth);
+}
+
+/*!
+ \brief software generate events
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] event: the timer software event generation sources
+ one or more parameters can be selected which are shown as below:
+ \arg TIMER_EVENT_SRC_UPG: update event,TIMERx(x=0,2,5,13..16)
+ \arg TIMER_EVENT_SRC_CH0G: channel 0 capture or compare event generation, TIMERx(x=0,2,13..16)
+ \arg TIMER_EVENT_SRC_CH1G: channel 1 capture or compare event generation, TIMERx(x=0,2,14)
+ \arg TIMER_EVENT_SRC_CH2G: channel 2 capture or compare event generation, TIMERx(x=0,2)
+ \arg TIMER_EVENT_SRC_CH3G: channel 3 capture or compare event generation, TIMERx(x=0,2)
+ \arg TIMER_EVENT_SRC_CMTG: channel commutation event generation, TIMERx(x=0,14..16)
+ \arg TIMER_EVENT_SRC_TRGG: trigger event generation, TIMERx(x=0,2,14)
+ \arg TIMER_EVENT_SRC_BRKG: break event generation, TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_event_software_generate(uint32_t timer_periph, uint16_t event)
+{
+ TIMER_SWEVG(timer_periph) |= (uint32_t)event;
+}
+
+/*!
+ \brief initialize TIMER break parameter struct with a default value
+ \param[in] breakpara: TIMER break parameter struct
+ \param[out] none
+ \retval none
+*/
+void timer_break_struct_para_init(timer_break_parameter_struct* breakpara)
+{
+ /* initialize the break parameter struct member with the default value */
+ breakpara->runoffstate = TIMER_ROS_STATE_DISABLE;
+ breakpara->ideloffstate = TIMER_IOS_STATE_DISABLE;
+ breakpara->deadtime = 0U;
+ breakpara->breakpolarity = TIMER_BREAK_POLARITY_LOW;
+ breakpara->outputautostate = TIMER_OUTAUTO_DISABLE;
+ breakpara->protectmode = TIMER_CCHP_PROT_OFF;
+ breakpara->breakstate = TIMER_BREAK_DISABLE;
+}
+
+/*!
+ \brief configure TIMER break function
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[in] breakpara: TIMER break parameter struct
+ runoffstate: TIMER_ROS_STATE_ENABLE,TIMER_ROS_STATE_DISABLE
+ ideloffstate: TIMER_IOS_STATE_ENABLE,TIMER_IOS_STATE_DISABLE
+ deadtime: 0~255
+ breakpolarity: TIMER_BREAK_POLARITY_LOW,TIMER_BREAK_POLARITY_HIGH
+ outputautostate: TIMER_OUTAUTO_ENABLE,TIMER_OUTAUTO_DISABLE
+ protectmode: TIMER_CCHP_PROT_OFF,TIMER_CCHP_PROT_0,TIMER_CCHP_PROT_1,TIMER_CCHP_PROT_2
+ breakstate: TIMER_BREAK_ENABLE,TIMER_BREAK_DISABLE
+ \param[out] none
+ \retval none
+*/
+void timer_break_config(uint32_t timer_periph, timer_break_parameter_struct* breakpara)
+{
+ TIMER_CCHP(timer_periph) = (uint32_t)(((uint32_t)(breakpara->runoffstate))|
+ ((uint32_t)(breakpara->ideloffstate))|
+ ((uint32_t)(breakpara->deadtime))|
+ ((uint32_t)(breakpara->breakpolarity))|
+ ((uint32_t)(breakpara->outputautostate)) |
+ ((uint32_t)(breakpara->protectmode))|
+ ((uint32_t)(breakpara->breakstate))) ;
+}
+
+/*!
+ \brief enable TIMER break function
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_break_enable(uint32_t timer_periph)
+{
+ TIMER_CCHP(timer_periph) |= (uint32_t)TIMER_CCHP_BRKEN;
+}
+
+/*!
+ \brief disable TIMER break function
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_break_disable(uint32_t timer_periph)
+{
+ TIMER_CCHP(timer_periph) &= ~(uint32_t)TIMER_CCHP_BRKEN;
+}
+
+/*!
+ \brief enable TIMER output automatic function
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_automatic_output_enable(uint32_t timer_periph)
+{
+ TIMER_CCHP(timer_periph) |= (uint32_t)TIMER_CCHP_OAEN;
+}
+
+/*!
+ \brief disable TIMER output automatic function
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[out] none
+ \retval none
+*/
+void timer_automatic_output_disable(uint32_t timer_periph)
+{
+ TIMER_CCHP(timer_periph) &= ~(uint32_t)TIMER_CCHP_OAEN;
+}
+
+/*!
+ \brief configure TIMER primary output function
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[in] newvalue: ENABLE or DISABLE
+ \param[out] none
+ \retval none
+*/
+void timer_primary_output_config(uint32_t timer_periph, ControlStatus newvalue)
+{
+ if(ENABLE == newvalue){
+ TIMER_CCHP(timer_periph) |= (uint32_t)TIMER_CCHP_POEN;
+ }else{
+ TIMER_CCHP(timer_periph) &= (~(uint32_t)TIMER_CCHP_POEN);
+ }
+}
+
+/*!
+ \brief enable or disable channel capture/compare control shadow register
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[in] newvalue: ENABLE or DISABLE
+ \param[out] none
+ \retval none
+*/
+void timer_channel_control_shadow_config(uint32_t timer_periph, ControlStatus newvalue)
+{
+ if(ENABLE == newvalue){
+ TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_CCSE;
+ }else{
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_CCSE);
+ }
+}
+
+/*!
+ \brief configure TIMER channel control shadow register update control
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[in] ccuctl: channel control shadow register update control
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_UPDATECTL_CCU: the shadow registers update by when CMTG bit is set
+ \arg TIMER_UPDATECTL_CCUTRI: the shadow registers update by when CMTG bit is set or an rising edge of TRGI occurs
+ \param[out] none
+ \retval none
+*/
+void timer_channel_control_shadow_update_config(uint32_t timer_periph, uint8_t ccuctl)
+{
+ if(TIMER_UPDATECTL_CCU == ccuctl){
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_CCUC);
+ }else if(TIMER_UPDATECTL_CCUTRI == ccuctl){
+ TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_CCUC;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief initialize TIMER channel output parameter struct with a default value
+ \param[in] ocpara: TIMER channel n output parameter struct
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_struct_para_init(timer_oc_parameter_struct* ocpara)
+{
+ /* initialize the channel output parameter struct member with the default value */
+ ocpara->outputstate = (uint16_t)TIMER_CCX_DISABLE;
+ ocpara->outputnstate = TIMER_CCXN_DISABLE;
+ ocpara->ocpolarity = TIMER_OC_POLARITY_HIGH;
+ ocpara->ocnpolarity = TIMER_OCN_POLARITY_HIGH;
+ ocpara->ocidlestate = TIMER_OC_IDLE_STATE_LOW;
+ ocpara->ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
+}
+
+/*!
+ \brief configure TIMER channel output function
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel 0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel 1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel 2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel 3(TIMERx(x=0,2))
+ \param[in] ocpara: TIMER channeln output parameter struct
+ outputstate: TIMER_CCX_ENABLE,TIMER_CCX_DISABLE
+ outputnstate: TIMER_CCXN_ENABLE,TIMER_CCXN_DISABLE
+ ocpolarity: TIMER_OC_POLARITY_HIGH,TIMER_OC_POLARITY_LOW
+ ocnpolarity: TIMER_OCN_POLARITY_HIGH,TIMER_OCN_POLARITY_LOW
+ ocidlestate: TIMER_OC_IDLE_STATE_LOW,TIMER_OC_IDLE_STATE_HIGH
+ ocnidlestate: TIMER_OCN_IDLE_STATE_LOW,TIMER_OCN_IDLE_STATE_HIGH
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_config(uint32_t timer_periph, uint16_t channel, timer_oc_parameter_struct* ocpara)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ /* reset the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
+ TIMER_CHCTL0(timer_periph) &= ~(uint32_t)TIMER_CHCTL0_CH0MS;
+ /* set the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->outputstate;
+ /* reset the CH0P bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0P);
+ /* set the CH0P bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->ocpolarity;
+
+ if((TIMER0 == timer_periph) || (TIMER14 == timer_periph) || (TIMER15 == timer_periph) || (TIMER16 == timer_periph)){
+ /* reset the CH0NEN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NEN);
+ /* set the CH0NEN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->outputnstate;
+ /* reset the CH0NP bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NP);
+ /* set the CH0NP bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpara->ocnpolarity;
+ /* reset the ISO0 bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO0);
+ /* set the ISO0 bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)ocpara->ocidlestate;
+ /* reset the ISO0N bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO0N);
+ /* set the ISO0N bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)ocpara->ocnidlestate;
+ }
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ /* reset the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
+ TIMER_CHCTL0(timer_periph) &= ~(uint32_t)TIMER_CHCTL0_CH1MS;
+ /* set the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpara->outputstate << 4U);
+ /* reset the CH1P bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1P);
+ /* set the CH1P bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocpolarity) << 4U);
+
+ if(TIMER0 == timer_periph){
+ /* reset the CH1NEN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NEN);
+ /* set the CH1NEN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->outputnstate) << 4U);
+ /* reset the CH1NP bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NP);
+ /* set the CH1NP bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnpolarity) << 4U);
+ /* reset the ISO1 bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO1);
+ /* set the ISO1 bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocidlestate) << 2U);
+ /* reset the ISO1N bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO1N);
+ /* set the ISO1N bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnidlestate) << 2U);
+ }
+
+ if(TIMER14 == timer_periph){
+ /* reset the ISO1 bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO1);
+ /* set the ISO1 bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocidlestate) << 2U);
+ }
+
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ /* reset the CH2EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2EN);
+ TIMER_CHCTL1(timer_periph) &= ~(uint32_t)TIMER_CHCTL1_CH2MS;
+ /* set the CH2EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpara->outputstate << 8U);
+ /* reset the CH2P bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2P);
+ /* set the CH2P bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocpolarity) << 8U);
+
+ if(TIMER0 == timer_periph){
+ /* reset the CH2NEN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NEN);
+ /* set the CH2NEN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->outputnstate) << 8U);
+ /* reset the CH2NP bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NP);
+ /* set the CH2NP bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnpolarity) << 8U);
+ /* reset the ISO2 bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO2);
+ /* set the ISO2 bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocidlestate) << 4U);
+ /* reset the ISO2N bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO2N);
+ /* set the ISO2N bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocnidlestate) << 4U);
+ }
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ /* reset the CH3EN bit */
+ TIMER_CHCTL2(timer_periph) &=(~(uint32_t)TIMER_CHCTL2_CH3EN);
+ TIMER_CHCTL1(timer_periph) &= ~(uint32_t)TIMER_CHCTL1_CH3MS;
+ /* set the CH3EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpara->outputstate << 12U);
+ /* reset the CH3P bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3P);
+ /* set the CH3P bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocpolarity) << 12U);
+
+ if(TIMER0 == timer_periph){
+ /* reset the ISO3 bit */
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_ISO3);
+ /* set the ISO3 bit */
+ TIMER_CTL1(timer_periph) |= (uint32_t)((uint32_t)(ocpara->ocidlestate) << 6U);
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel output compare mode
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] ocmode: channel output compare mode
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OC_MODE_TIMING: timing mode
+ \arg TIMER_OC_MODE_ACTIVE: active mode
+ \arg TIMER_OC_MODE_INACTIVE: inactive mode
+ \arg TIMER_OC_MODE_TOGGLE: toggle mode
+ \arg TIMER_OC_MODE_LOW: force low mode
+ \arg TIMER_OC_MODE_HIGH: force high mode
+ \arg TIMER_OC_MODE_PWM0: PWM0 mode
+ \arg TIMER_OC_MODE_PWM1: PWM1 mode
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_mode_config(uint32_t timer_periph, uint16_t channel, uint16_t ocmode)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMCTL);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)ocmode;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMCTL);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(ocmode) << 8U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMCTL);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)ocmode;
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMCTL);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(ocmode) << 8U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel output pulse value
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] pulse: channel output pulse value,0~65535
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_pulse_value_config(uint32_t timer_periph, uint16_t channel, uint32_t pulse)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CH0CV(timer_periph) = (uint32_t)pulse;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CH1CV(timer_periph) = (uint32_t)pulse;
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CH2CV(timer_periph) = (uint32_t)pulse;
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CH3CV(timer_periph) = (uint32_t)pulse;
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel output shadow function
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] ocshadow: channel output shadow state
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OC_SHADOW_ENABLE: channel output shadow state enable
+ \arg TIMER_OC_SHADOW_DISABLE: channel output shadow state disable
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_shadow_config(uint32_t timer_periph, uint16_t channel, uint16_t ocshadow)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMSEN);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)ocshadow;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMSEN);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(ocshadow) << 8U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMSEN);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)ocshadow;
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMSEN);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(ocshadow) << 8U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel output fast function
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] ocfast: channel output fast function
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OC_FAST_ENABLE: channel output fast function enable
+ \arg TIMER_OC_FAST_DISABLE: channel output fast function disable
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_fast_config(uint32_t timer_periph, uint16_t channel, uint16_t ocfast)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMFEN);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)ocfast;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMFEN);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)ocfast << 8U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMFEN);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)ocfast;
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMFEN);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)ocfast << 8U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel output clear function
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] occlear: channel output clear function
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OC_CLEAR_ENABLE: channel output clear function enable
+ \arg TIMER_OC_CLEAR_DISABLE: channel output clear function disable
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_clear_config(uint32_t timer_periph, uint16_t channel, uint16_t occlear)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0COMCEN);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)occlear;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1COMCEN);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)occlear << 8U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2COMCEN);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)occlear;
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3COMCEN);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)occlear << 8U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel output polarity
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] ocpolarity: channel output polarity
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OC_POLARITY_HIGH: channel output polarity is high
+ \arg TIMER_OC_POLARITY_LOW: channel output polarity is low
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocpolarity)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0P);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)ocpolarity;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1P);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpolarity << 4U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2P);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpolarity << 8U);
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3P);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocpolarity << 12U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel complementary output polarity
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel2(TIMERx(x=0,2))
+ \param[in] ocnpolarity: channel complementary output polarity
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OCN_POLARITY_HIGH: channel complementary output polarity is high
+ \arg TIMER_OCN_POLARITY_LOW: channel complementary output polarity is low
+ \param[out] none
+ \retval none
+*/
+void timer_channel_complementary_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnpolarity)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NP);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)ocnpolarity;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NP);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnpolarity << 4U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NP);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnpolarity << 8U);
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3NP);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnpolarity << 12U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel enable state
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] state: TIMER channel enable state
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CCX_ENABLE: channel enable
+ \arg TIMER_CCX_DISABLE: channel disable
+ \param[out] none
+ \retval none
+*/
+void timer_channel_output_state_config(uint32_t timer_periph, uint16_t channel, uint32_t state)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)state;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)state << 4U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2EN);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)state << 8U);
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3EN);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)state << 12U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure TIMER channel complementary output enable state
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,14..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0))
+ \param[in] ocnstate: TIMER channel complementary output enable state
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CCXN_ENABLE: channel complementary enable
+ \arg TIMER_CCXN_DISABLE: channel complementary disable
+ \param[out] none
+ \retval none
+*/
+void timer_channel_complementary_output_state_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnstate)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0NEN);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)ocnstate;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1NEN);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnstate << 4U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2NEN);
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)ocnstate << 8U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief initialize TIMER channel input parameter struct with a default value
+ \param[in] icpara: TIMER channel intput parameter struct
+ \param[out] none
+ \retval none
+*/
+void timer_channel_input_struct_para_init(timer_ic_parameter_struct* icpara)
+{
+ /* initialize the channel input parameter struct member with the default value */
+ icpara->icpolarity = TIMER_IC_POLARITY_RISING;
+ icpara->icselection = TIMER_IC_SELECTION_DIRECTTI;
+ icpara->icprescaler = TIMER_IC_PSC_DIV1;
+ icpara->icfilter = 0U;
+}
+
+/*!
+ \brief configure TIMER input capture parameter
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] icpara: TIMER channel intput parameter struct
+ icpolarity: TIMER_IC_POLARITY_RISING,TIMER_IC_POLARITY_FALLING,TIMER_IC_POLARITY_BOTH_EDGE
+ icselection: TIMER_IC_SELECTION_DIRECTTI,TIMER_IC_SELECTION_INDIRECTTI,TIMER_IC_SELECTION_ITS
+ icprescaler: TIMER_IC_PSC_DIV1,TIMER_IC_PSC_DIV2,TIMER_IC_PSC_DIV4,TIMER_IC_PSC_DIV8
+ icfilter: 0~15
+ \param[out] none
+ \retval none
+*/
+void timer_input_capture_config(uint32_t timer_periph,uint16_t channel, timer_ic_parameter_struct* icpara)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ /* reset the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
+
+ /* reset the CH0P and CH0NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P | TIMER_CHCTL2_CH0NP));
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)(icpara->icpolarity);
+ /* reset the CH0MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)(icpara->icselection);
+ /* reset the CH0CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 4U);
+
+ /* set the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
+ break;
+
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ /* reset the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
+
+ /* reset the CH1P and CH1NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P | TIMER_CHCTL2_CH1NP));
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpara->icpolarity) << 4U);
+ /* reset the CH1MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpara->icselection) << 8U);
+ /* reset the CH1CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 12U);
+
+ /* set the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ /* reset the CH2EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH2EN);
+
+ /* reset the CH2P and CH2NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH2P|TIMER_CHCTL2_CH2NP));
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpara->icpolarity) << 8U);
+
+ /* reset the CH2MS bit */
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2MS);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icselection));
+
+ /* reset the CH2CAPFLT bit */
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2CAPFLT);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 4U);
+
+ /* set the CH2EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH2EN;
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ /* reset the CH3EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH3EN);
+
+ /* reset the CH3P and CH3NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH3P|TIMER_CHCTL2_CH3NP));
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpara->icpolarity) << 12U);
+
+ /* reset the CH3MS bit */
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3MS);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icselection) << 8U);
+
+ /* reset the CH3CAPFLT bit */
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3CAPFLT);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)((uint32_t)(icpara->icfilter) << 12U);
+
+ /* set the CH3EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH3EN;
+ break;
+ default:
+ break;
+ }
+ /* configure TIMER channel input capture prescaler value */
+ timer_channel_input_capture_prescaler_config(timer_periph, channel, (uint16_t)(icpara->icprescaler));
+}
+
+/*!
+ \brief configure TIMER channel input capture prescaler value
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[in] prescaler: channel input capture prescaler value
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_IC_PSC_DIV1: no prescaler
+ \arg TIMER_IC_PSC_DIV2: divided by 2
+ \arg TIMER_IC_PSC_DIV4: divided by 4
+ \arg TIMER_IC_PSC_DIV8: divided by 8
+ \param[out] none
+ \retval none
+*/
+void timer_channel_input_capture_prescaler_config(uint32_t timer_periph, uint16_t channel, uint16_t prescaler)
+{
+ switch(channel){
+ /* configure TIMER_CH_0 */
+ case TIMER_CH_0:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPPSC);
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)prescaler;
+ break;
+ /* configure TIMER_CH_1 */
+ case TIMER_CH_1:
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPPSC);
+ TIMER_CHCTL0(timer_periph) |= ((uint32_t)prescaler << 8U);
+ break;
+ /* configure TIMER_CH_2 */
+ case TIMER_CH_2:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH2CAPPSC);
+ TIMER_CHCTL1(timer_periph) |= (uint32_t)prescaler;
+ break;
+ /* configure TIMER_CH_3 */
+ case TIMER_CH_3:
+ TIMER_CHCTL1(timer_periph) &= (~(uint32_t)TIMER_CHCTL1_CH3CAPPSC);
+ TIMER_CHCTL1(timer_periph) |= ((uint32_t)prescaler << 8U);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief read TIMER channel capture compare register value
+ \param[in] timer_periph: please refer to the following parameters
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0(TIMERx(x=0,2,13..16))
+ \arg TIMER_CH_1: TIMER channel1(TIMERx(x=0,2,14))
+ \arg TIMER_CH_2: TIMER channel2(TIMERx(x=0,2))
+ \arg TIMER_CH_3: TIMER channel3(TIMERx(x=0,2))
+ \param[out] none
+ \retval channel capture compare register value
+*/
+uint32_t timer_channel_capture_value_register_read(uint32_t timer_periph, uint16_t channel)
+{
+ uint32_t count_value = 0U;
+
+ switch(channel){
+ /* read TIMER channel 0 capture compare register value */
+ case TIMER_CH_0:
+ count_value = TIMER_CH0CV(timer_periph);
+ break;
+ /* read TIMER channel 1 capture compare register value */
+ case TIMER_CH_1:
+ count_value = TIMER_CH1CV(timer_periph);
+ break;
+ /* read TIMER channel 2 capture compare register value */
+ case TIMER_CH_2:
+ count_value = TIMER_CH2CV(timer_periph);
+ break;
+ /* read TIMER channel 3 capture compare register value */
+ case TIMER_CH_3:
+ count_value = TIMER_CH3CV(timer_periph);
+ break;
+ default:
+ break;
+ }
+ return (count_value);
+}
+
+/*!
+ \brief configure TIMER input pwm capture function
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[in] channel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CH_0: TIMER channel0
+ \arg TIMER_CH_1: TIMER channel1
+ \param[in] icpwm:TIMER channel intput pwm parameter struct
+ icpolarity: TIMER_IC_POLARITY_RISING,TIMER_IC_POLARITY_FALLING
+ icselection: TIMER_IC_SELECTION_DIRECTTI,TIMER_IC_SELECTION_INDIRECTTI
+ icprescaler: TIMER_IC_PSC_DIV1,TIMER_IC_PSC_DIV2,TIMER_IC_PSC_DIV4,TIMER_IC_PSC_DIV8
+ icfilter: 0~15
+ \param[out] none
+ \retval none
+*/
+void timer_input_pwm_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpwm)
+{
+ uint16_t icpolarity = 0x0U;
+ uint16_t icselection = 0x0U;
+
+ /* Set channel input polarity */
+ if(TIMER_IC_POLARITY_RISING == icpwm->icpolarity){
+ icpolarity = TIMER_IC_POLARITY_FALLING;
+ }else{
+ icpolarity = TIMER_IC_POLARITY_RISING;
+ }
+
+ /* Set channel input mode selection */
+ if(TIMER_IC_SELECTION_DIRECTTI == icpwm->icselection){
+ icselection = TIMER_IC_SELECTION_INDIRECTTI;
+ }else{
+ icselection = TIMER_IC_SELECTION_DIRECTTI;
+ }
+
+ if(TIMER_CH_0 == channel){
+ /* reset the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
+ /* reset the CH0P and CH0NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P|TIMER_CHCTL2_CH0NP));
+ /* set the CH0P and CH0NP bits */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)(icpwm->icpolarity);
+ /* reset the CH0MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
+ /* set the CH0MS bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)(icpwm->icselection);
+ /* reset the CH0CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
+ /* set the CH0CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) |= ((uint32_t)(icpwm->icfilter) << 4U);
+ /* set the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
+ /* configure TIMER channel input capture prescaler value */
+ timer_channel_input_capture_prescaler_config(timer_periph,TIMER_CH_0,(uint16_t)(icpwm->icprescaler));
+
+ /* reset the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
+ /* reset the CH1P and CH1NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P|TIMER_CHCTL2_CH1NP));
+ /* set the CH1P and CH1NP bits */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)icpolarity << 4U);
+ /* reset the CH1MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
+ /* set the CH1MS bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)icselection << 8U);
+ /* reset the CH1CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
+ /* set the CH1CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icfilter) << 12U);
+ /* set the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
+ /* configure TIMER channel input capture prescaler value */
+ timer_channel_input_capture_prescaler_config(timer_periph,TIMER_CH_1,(uint16_t)(icpwm->icprescaler));
+ }else{
+ /* reset the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
+ /* reset the CH1P and CH1NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P|TIMER_CHCTL2_CH1NP));
+ /* set the CH1P and CH1NP bits */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icpolarity) << 4U);
+ /* reset the CH1MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
+ /* set the CH1MS bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icselection) << 8U);
+ /* reset the CH1CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
+ /* set the CH1CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)(icpwm->icfilter) << 12U);
+ /* set the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
+ /* configure TIMER channel input capture prescaler value */
+ timer_channel_input_capture_prescaler_config(timer_periph, TIMER_CH_1, (uint16_t)(icpwm->icprescaler));
+
+ /* reset the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
+ /* reset the CH0P and CH0NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P|TIMER_CHCTL2_CH0NP));
+ /* set the CH0P and CH0NP bits */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)icpolarity;
+ /* reset the CH0MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
+ /* set the CH0MS bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)icselection;
+ /* reset the CH0CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
+ /* set the CH0CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) |= ((uint32_t)(icpwm->icfilter) << 4U);
+ /* set the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
+ /* configure TIMER channel input capture prescaler value */
+ timer_channel_input_capture_prescaler_config(timer_periph, TIMER_CH_0, (uint16_t)(icpwm->icprescaler));
+ }
+}
+
+/*!
+ \brief configure TIMER hall sensor mode
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[in] hallmode:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_HALLINTERFACE_ENABLE: TIMER hall sensor mode enable
+ \arg TIMER_HALLINTERFACE_DISABLE: TIMER hall sensor mode disable
+ \param[out] none
+ \retval none
+*/
+void timer_hall_mode_config(uint32_t timer_periph, uint32_t hallmode)
+{
+ if(TIMER_HALLINTERFACE_ENABLE == hallmode){
+ TIMER_CTL1(timer_periph) |= (uint32_t)TIMER_CTL1_TI0S;
+ }else if(TIMER_HALLINTERFACE_DISABLE == hallmode){
+ TIMER_CTL1(timer_periph) &= ~(uint32_t)TIMER_CTL1_TI0S;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief select TIMER input trigger source
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[in] intrigger:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_SMCFG_TRGSEL_ITI0: internal trigger 0(TIMERx(x=0,2,14))
+ \arg TIMER_SMCFG_TRGSEL_ITI1: internal trigger 1(TIMERx(x=0,2,14))
+ \arg TIMER_SMCFG_TRGSEL_ITI2: internal trigger 2(TIMERx(x=0,2))
+ \arg TIMER_SMCFG_TRGSEL_CI0F_ED: TI0 edge detector(TIMERx(x=0,2,14))
+ \arg TIMER_SMCFG_TRGSEL_CI0FE0: filtered TIMER input 0(TIMERx(x=0,2,14))
+ \arg TIMER_SMCFG_TRGSEL_CI1FE1: filtered TIMER input 1(TIMERx(x=0,2,14))
+ \arg TIMER_SMCFG_TRGSEL_ETIFP: external trigger(TIMERx(x=0,2))
+ \param[out] none
+ \retval none
+*/
+void timer_input_trigger_source_select(uint32_t timer_periph, uint32_t intrigger)
+{
+ TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_TRGS);
+ TIMER_SMCFG(timer_periph) |= (uint32_t)intrigger;
+}
+
+/*!
+ \brief select TIMER master mode output trigger source
+ \param[in] timer_periph: TIMERx(x=0,2,5,14)
+ \param[in] outrigger:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_TRI_OUT_SRC_RESET: the UPG bit as trigger output(TIMERx(x=0,2,5,14))
+ \arg TIMER_TRI_OUT_SRC_ENABLE: the counter enable signal TIMER_CTL0_CEN as trigger output(TIMERx(x=0,2,5,14))
+ \arg TIMER_TRI_OUT_SRC_UPDATE: update event as trigger output(TIMERx(x=0,2,5,14))
+ \arg TIMER_TRI_OUT_SRC_CH0: a capture or a compare match occurred in channal0 as trigger output TRGO
+ \arg TIMER_TRI_OUT_SRC_O0CPRE: O0CPRE as trigger output(TIMERx(x=0,2,14))
+ \arg TIMER_TRI_OUT_SRC_O1CPRE: O1CPRE as trigger output(TIMERx(x=0,2,14))
+ \arg TIMER_TRI_OUT_SRC_O2CPRE: O2CPRE as trigger output(TIMERx(x=0,2,14))
+ \arg TIMER_TRI_OUT_SRC_O3CPRE: O3CPRE as trigger output(TIMERx(x=0,2,14))
+ \param[out] none
+ \retval none
+*/
+void timer_master_output_trigger_source_select(uint32_t timer_periph, uint32_t outrigger)
+{
+ TIMER_CTL1(timer_periph) &= (~(uint32_t)TIMER_CTL1_MMC);
+ TIMER_CTL1(timer_periph) |= (uint32_t)outrigger;
+}
+
+/*!
+ \brief select TIMER slave mode
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[in] slavemode:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_SLAVE_MODE_DISABLE: slave mode disable(TIMERx(x=0,2,14))
+ \arg TIMER_ENCODER_MODE0: encoder mode 0(TIMERx(x=0,2))
+ \arg TIMER_ENCODER_MODE1: encoder mode 1(TIMERx(x=0,2))
+ \arg TIMER_ENCODER_MODE2: encoder mode 2(TIMERx(x=0,2))
+ \arg TIMER_SLAVE_MODE_RESTART: restart mode(TIMERx(x=0,2,14))
+ \arg TIMER_SLAVE_MODE_PAUSE: pause mode(TIMERx(x=0,2,14))
+ \arg TIMER_SLAVE_MODE_EVENT: event mode(TIMERx(x=0,2,14))
+ \arg TIMER_SLAVE_MODE_EXTERNAL0: external clock mode 0(TIMERx(x=0,2,14))
+ \param[out] none
+ \retval none
+*/
+
+void timer_slave_mode_select(uint32_t timer_periph, uint32_t slavemode)
+{
+ TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_SMC);
+
+ TIMER_SMCFG(timer_periph) |= (uint32_t)slavemode;
+}
+
+/*!
+ \brief configure TIMER master slave mode
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[in] masterslave:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_MASTER_SLAVE_MODE_ENABLE: master slave mode enable
+ \arg TIMER_MASTER_SLAVE_MODE_DISABLE: master slave mode disable
+ \param[out] none
+ \retval none
+*/
+void timer_master_slave_mode_config(uint32_t timer_periph, uint32_t masterslave)
+{
+ if(TIMER_MASTER_SLAVE_MODE_ENABLE == masterslave){
+ TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SMCFG_MSM;
+ }else if(TIMER_MASTER_SLAVE_MODE_DISABLE == masterslave){
+ TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_MSM;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief configure TIMER external trigger input
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[in] extprescaler:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_EXT_TRI_PSC_OFF: no divided
+ \arg TIMER_EXT_TRI_PSC_DIV2: divided by 2
+ \arg TIMER_EXT_TRI_PSC_DIV4: divided by 4
+ \arg TIMER_EXT_TRI_PSC_DIV8: divided by 8
+ \param[in] extpolarity:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_ETP_FALLING: active low or falling edge active
+ \arg TIMER_ETP_RISING: active high or rising edge active
+ \param[in] extfilter: a value between 0 and 15
+ \param[out] none
+ \retval none
+*/
+void timer_external_trigger_config(uint32_t timer_periph, uint32_t extprescaler,
+ uint32_t extpolarity, uint32_t extfilter)
+{
+ TIMER_SMCFG(timer_periph) &= (~(uint32_t)(TIMER_SMCFG_ETP | TIMER_SMCFG_ETPSC | TIMER_SMCFG_ETFC));
+ TIMER_SMCFG(timer_periph) |= (uint32_t)(extprescaler | extpolarity);
+ TIMER_SMCFG(timer_periph) |= (uint32_t)(extfilter << 8U);
+}
+
+/*!
+ \brief configure TIMER quadrature decoder mode
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[in] decomode:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_ENCODER_MODE0: counter counts on CI0FE0 edge depending on CI1FE1 level
+ \arg TIMER_ENCODER_MODE1: counter counts on CI1FE1 edge depending on CI0FE0 level
+ \arg TIMER_ENCODER_MODE2: counter counts on both CI0FE0 and CI1FE1 edges depending on the level of the other input
+ \param[in] ic0polarity:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_IC_POLARITY_RISING: capture rising edge
+ \arg TIMER_IC_POLARITY_FALLING: capture falling edge
+ \param[in] ic1polarity:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_IC_POLARITY_RISING: capture rising edge
+ \arg TIMER_IC_POLARITY_FALLING: capture falling edge
+ \param[out] none
+ \retval none
+*/
+void timer_quadrature_decoder_mode_config(uint32_t timer_periph, uint32_t decomode,
+ uint16_t ic0polarity, uint16_t ic1polarity)
+{
+ TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_SMC);
+ TIMER_SMCFG(timer_periph) |= (uint32_t)decomode;
+
+ TIMER_CHCTL0(timer_periph) &= (uint32_t)(((~(uint32_t)TIMER_CHCTL0_CH0MS))&((~(uint32_t)TIMER_CHCTL0_CH1MS)));
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)(TIMER_IC_SELECTION_DIRECTTI|((uint32_t)TIMER_IC_SELECTION_DIRECTTI << 8U));
+
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P|TIMER_CHCTL2_CH0NP));
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P|TIMER_CHCTL2_CH1NP));
+ TIMER_CHCTL2(timer_periph) |= ((uint32_t)ic0polarity|((uint32_t)ic1polarity << 4U));
+}
+
+/*!
+ \brief configure TIMER internal clock mode
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[out] none
+ \retval none
+*/
+void timer_internal_clock_config(uint32_t timer_periph)
+{
+ TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_SMC;
+}
+
+/*!
+ \brief configure TIMER the internal trigger as external clock input
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[in] intrigger:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_SMCFG_TRGSEL_ITI0: internal trigger 0(TIMERx(x=0,2,14))
+ \arg TIMER_SMCFG_TRGSEL_ITI1: internal trigger 1(TIMERx(x=0,2,14))
+ \arg TIMER_SMCFG_TRGSEL_ITI2: internal trigger 2(TIMERx(x=0,2))
+ \param[out] none
+ \retval none
+*/
+void timer_internal_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t intrigger)
+{
+ timer_input_trigger_source_select(timer_periph, intrigger);
+ TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_SMC;
+ TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SLAVE_MODE_EXTERNAL0;
+}
+
+/*!
+ \brief configure TIMER the external trigger as external clock input
+ \param[in] timer_periph: TIMERx(x=0,2,14)
+ \param[in] extrigger:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_SMCFG_TRGSEL_CI0F_ED: TI0 edge detector
+ \arg TIMER_SMCFG_TRGSEL_CI0FE0: filtered TIMER input 0
+ \arg TIMER_SMCFG_TRGSEL_CI1FE1: filtered TIMER input 1
+ \param[in] extpolarity:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_IC_POLARITY_RISING: active high or rising edge active
+ \arg TIMER_IC_POLARITY_FALLING: active low or falling edge active
+ \arg TIMER_IC_POLARITY_BOTH_EDGE: active both edge
+ \param[in] extfilter: a value between 0 and 15
+ \param[out] none
+ \retval none
+*/
+void timer_external_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t extrigger,
+ uint16_t extpolarity, uint32_t extfilter)
+{
+ if(TIMER_SMCFG_TRGSEL_CI1FE1 == extrigger){
+ /* reset the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH1EN);
+ /* reset the CH1NP bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH1P|TIMER_CHCTL2_CH1NP));
+ /* set the CH1NP bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)((uint32_t)extpolarity << 4U);
+ /* reset the CH1MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1MS);
+ /* set the CH1MS bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)((uint32_t)TIMER_IC_SELECTION_DIRECTTI << 8U);
+ /* reset the CH1CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH1CAPFLT);
+ /* set the CH1CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)(extfilter << 8U);
+ /* set the CH1EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH1EN;
+ }else{
+ /* reset the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)TIMER_CHCTL2_CH0EN);
+ /* reset the CH0P and CH0NP bits */
+ TIMER_CHCTL2(timer_periph) &= (~(uint32_t)(TIMER_CHCTL2_CH0P|TIMER_CHCTL2_CH0NP));
+ /* set the CH0P and CH0NP bits */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)extpolarity;
+ /* reset the CH0MS bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0MS);
+ /* set the CH0MS bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)TIMER_IC_SELECTION_DIRECTTI;
+ /* reset the CH0CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) &= (~(uint32_t)TIMER_CHCTL0_CH0CAPFLT);
+ /* reset the CH0CAPFLT bit */
+ TIMER_CHCTL0(timer_periph) |= (uint32_t)extfilter;
+ /* set the CH0EN bit */
+ TIMER_CHCTL2(timer_periph) |= (uint32_t)TIMER_CHCTL2_CH0EN;
+ }
+ /* select TIMER input trigger source */
+ timer_input_trigger_source_select(timer_periph,extrigger);
+ /* reset the SMC bit */
+ TIMER_SMCFG(timer_periph) &= (~(uint32_t)TIMER_SMCFG_SMC);
+ /* set the SMC bit */
+ TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SLAVE_MODE_EXTERNAL0;
+}
+
+/*!
+ \brief configure TIMER the external clock mode0
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[in] extprescaler:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_EXT_TRI_PSC_OFF: no divided
+ \arg TIMER_EXT_TRI_PSC_DIV2: divided by 2
+ \arg TIMER_EXT_TRI_PSC_DIV4: divided by 4
+ \arg TIMER_EXT_TRI_PSC_DIV8: divided by 8
+ \param[in] extpolarity:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_ETP_FALLING: active low or falling edge active
+ \arg TIMER_ETP_RISING: active high or rising edge active
+ \param[in] extfilter: a value between 0 and 15
+ \param[out] none
+ \retval none
+*/
+void timer_external_clock_mode0_config(uint32_t timer_periph, uint32_t extprescaler,
+ uint32_t extpolarity, uint32_t extfilter)
+{
+ /* configure TIMER external trigger input */
+ timer_external_trigger_config(timer_periph, extprescaler, extpolarity, extfilter);
+
+ /* reset the SMC bit,TRGS bit */
+ TIMER_SMCFG(timer_periph) &= (~(uint32_t)(TIMER_SMCFG_SMC | TIMER_SMCFG_TRGS));
+ /* set the SMC bit,TRGS bit */
+ TIMER_SMCFG(timer_periph) |= (uint32_t)(TIMER_SLAVE_MODE_EXTERNAL0 | TIMER_SMCFG_TRGSEL_ETIFP);
+}
+
+/*!
+ \brief configure TIMER the external clock mode1
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[in] extprescaler:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_EXT_TRI_PSC_OFF: no divided
+ \arg TIMER_EXT_TRI_PSC_DIV2: divided by 2
+ \arg TIMER_EXT_TRI_PSC_DIV4: divided by 4
+ \arg TIMER_EXT_TRI_PSC_DIV8: divided by 8
+ \param[in] extpolarity:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_ETP_FALLING: active low or falling edge active
+ \arg TIMER_ETP_RISING: active high or rising edge active
+ \param[in] extfilter: a value between 0 and 15
+ \param[out] none
+ \retval none
+*/
+void timer_external_clock_mode1_config(uint32_t timer_periph, uint32_t extprescaler,
+ uint32_t extpolarity, uint32_t extfilter)
+{
+ /* configure TIMER external trigger input */
+ timer_external_trigger_config(timer_periph, extprescaler, extpolarity, extfilter);
+
+ TIMER_SMCFG(timer_periph) |= (uint32_t)TIMER_SMCFG_SMC1;
+}
+
+/*!
+ \brief disable TIMER the external clock mode1
+ \param[in] timer_periph: TIMERx(x=0,2)
+ \param[out] none
+ \retval none
+*/
+void timer_external_clock_mode1_disable(uint32_t timer_periph)
+{
+ TIMER_SMCFG(timer_periph) &= ~(uint32_t)TIMER_SMCFG_SMC1;
+}
+
+/*!
+ \brief configure TIMER channel remap function
+ \param[in] timer_periph: TIMERx(x=13)
+ \param[in] remap:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER13_CI0_RMP_GPIO: timer13 channel 0 input is connected to GPIO(TIMER13_CH0)
+ \arg TIMER13_CI0_RMP_RTCCLK: timer13 channel 0 input is connected to the RTCCLK
+ \arg TIMER13_CI0_RMP_HXTAL_DIV32: timer13 channel 0 input is connected to HXTAL/32 clock
+ \arg TIMER13_CI0_RMP_CKOUTSEL: timer13 channel 0 input is connected to CKOUTSEL
+ \param[out] none
+ \retval none
+*/
+void timer_channel_remap_config(uint32_t timer_periph, uint32_t remap)
+{
+ TIMER_IRMP(timer_periph) = (uint32_t)remap;
+}
+
+/*!
+ \brief configure TIMER write CHxVAL register selection
+ \param[in] timer_periph: TIMERx(x=0,2,13..16)
+ \param[in] ccsel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_CHVSEL_DISABLE: no effect
+ \arg TIMER_CHVSEL_ENABLE: when write the CHxVAL register, if the write value is same as the CHxVAL value, the write access is ignored
+ \param[out] none
+ \retval none
+*/
+void timer_write_chxval_register_config(uint32_t timer_periph, uint16_t ccsel)
+{
+ if(TIMER_CHVSEL_ENABLE == ccsel){
+ TIMER_CFG(timer_periph) |= (uint32_t)TIMER_CFG_CHVSEL;
+ }else if(TIMER_CHVSEL_DISABLE == ccsel){
+ TIMER_CFG(timer_periph) &= ~(uint32_t)TIMER_CFG_CHVSEL;
+ }else{
+ /* illegal parameters */
+ }
+}
+
+/*!
+ \brief configure TIMER output value selection
+ \param[in] timer_periph: TIMERx(x=0,14..16)
+ \param[in] outsel:
+ only one parameter can be selected which is shown as below:
+ \arg TIMER_OUTSEL_DISABLE: no effect
+ \arg TIMER_OUTSEL_ENABLE: if POEN and IOS is 0, the output disabled
+ \param[out] none
+ \retval none
+*/
+void timer_output_value_selection_config(uint32_t timer_periph, uint16_t outsel)
+{
+ if(TIMER_OUTSEL_ENABLE == outsel){
+ TIMER_CFG(timer_periph) |= (uint32_t)TIMER_CFG_OUTSEL;
+ }else if(TIMER_OUTSEL_DISABLE == outsel){
+ TIMER_CFG(timer_periph) &= ~(uint32_t)TIMER_CFG_OUTSEL;
+ }else{
+ /* illegal parameters */
+ }
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_usart.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_usart.c
new file mode 100644
index 0000000000..f73723e4be
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_usart.c
@@ -0,0 +1,1318 @@
+/*!
+ \file gd32e230_usart.c
+ \brief USART driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_usart.h"
+
+/*!
+ \brief reset USART
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_deinit(uint32_t usart_periph)
+{
+ switch(usart_periph){
+ case USART0:
+ /* reset USART0 */
+ rcu_periph_reset_enable(RCU_USART0RST);
+ rcu_periph_reset_disable(RCU_USART0RST);
+ break;
+ case USART1:
+ /* reset USART1 */
+ rcu_periph_reset_enable(RCU_USART1RST);
+ rcu_periph_reset_disable(RCU_USART1RST);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief configure USART baud rate value
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] baudval: baud rate value
+ \param[out] none
+ \retval none
+*/
+void usart_baudrate_set(uint32_t usart_periph, uint32_t baudval)
+{
+ uint32_t uclk = 0U, intdiv = 0U, fradiv = 0U, udiv = 0U;
+ switch(usart_periph){
+ /* get clock frequency */
+ case USART0:
+ /* get USART0 clock */
+ uclk = rcu_clock_freq_get(CK_USART);
+ break;
+ case USART1:
+ /* get USART1 clock */
+ uclk = rcu_clock_freq_get(CK_APB1);
+ break;
+ default:
+ break;
+ }
+ if(USART_CTL0(usart_periph) & USART_CTL0_OVSMOD){
+ /* oversampling by 8, configure the value of USART_BAUD */
+ udiv = ((2U*uclk)+baudval/2U)/baudval;
+ intdiv = udiv & 0x0000fff0U;
+ fradiv = (udiv>>1U) & 0x00000007U;
+ USART_BAUD(usart_periph) = ((USART_BAUD_FRADIV | USART_BAUD_INTDIV) & (intdiv | fradiv));
+ }else{
+ /* oversampling by 16, configure the value of USART_BAUD */
+ udiv = (uclk+baudval/2U)/baudval;
+ intdiv = udiv & 0x0000fff0U;
+ fradiv = udiv & 0x0000000fU;
+ USART_BAUD(usart_periph) = ((USART_BAUD_FRADIV | USART_BAUD_INTDIV) & (intdiv | fradiv));
+ }
+}
+
+/*!
+ \brief configure USART parity
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] paritycfg: USART parity configure
+ only one parameter can be selected which is shown as below:
+ \arg USART_PM_NONE: no parity
+ \arg USART_PM_ODD: odd parity
+ \arg USART_PM_EVEN: even parity
+ \param[out] none
+ \retval none
+*/
+void usart_parity_config(uint32_t usart_periph, uint32_t paritycfg)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* clear USART_CTL0 PM,PCEN bits */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_PM | USART_CTL0_PCEN);
+ /* configure USART parity mode */
+ USART_CTL0(usart_periph) |= paritycfg;
+}
+
+/*!
+ \brief configure USART word length
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] wlen: USART word length configure
+ only one parameter can be selected which is shown as below:
+ \arg USART_WL_8BIT: 8 bits
+ \arg USART_WL_9BIT: 9 bits
+ \param[out] none
+ \retval none
+*/
+void usart_word_length_set(uint32_t usart_periph, uint32_t wlen)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* clear USART_CTL0 WL bit */
+ USART_CTL0(usart_periph) &= ~USART_CTL0_WL;
+ /* configure USART word length */
+ USART_CTL0(usart_periph) |= wlen;
+}
+
+/*!
+ \brief configure USART stop bit length
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] stblen: USART stop bit configure
+ only one parameter can be selected which is shown as below:
+ \arg USART_STB_1BIT: 1 bit
+ \arg USART_STB_0_5BIT: 0.5bit
+ \arg USART_STB_2BIT: 2 bits
+ \arg USART_STB_1_5BIT: 1.5bit
+ \param[out] none
+ \retval none
+*/
+void usart_stop_bit_set(uint32_t usart_periph, uint32_t stblen)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* clear USART_CTL1 STB bits */
+ USART_CTL1(usart_periph) &= ~USART_CTL1_STB;
+ USART_CTL1(usart_periph) |= stblen;
+}
+
+/*!
+ \brief enable USART
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_enable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) |= USART_CTL0_UEN;
+}
+
+/*!
+ \brief disable USART
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_disable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+}
+
+/*!
+ \brief configure USART transmitter
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] txconfig: enable or disable USART transmitter
+ only one parameter can be selected which is shown as below:
+ \arg USART_TRANSMIT_ENABLE: enable USART transmission
+ \arg USART_TRANSMIT_DISABLE: enable USART transmission
+ \param[out] none
+ \retval none
+*/
+void usart_transmit_config(uint32_t usart_periph, uint32_t txconfig)
+{
+ USART_CTL0(usart_periph) &= ~USART_CTL0_TEN;
+ /* configure transfer mode */
+ USART_CTL0(usart_periph) |= txconfig;
+}
+
+/*!
+ \brief configure USART receiver
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] rxconfig: enable or disable USART receiver
+ only one parameter can be selected which is shown as below:
+ \arg USART_RECEIVE_ENABLE: enable USART reception
+ \arg USART_RECEIVE_DISABLE: disable USART reception
+ \param[out] none
+ \retval none
+*/
+void usart_receive_config(uint32_t usart_periph, uint32_t rxconfig)
+{
+ USART_CTL0(usart_periph) &= ~USART_CTL0_REN;
+ /* configure receiver mode */
+ USART_CTL0(usart_periph) |= rxconfig;
+}
+
+/*!
+ \brief data is transmitted/received with the LSB/MSB first
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] msbf: LSB/MSB
+ only one parameter can be selected which is shown as below:
+ \arg USART_MSBF_LSB: LSB first
+ \arg USART_MSBF_MSB: MSB first
+ \param[out] none
+ \retval none
+*/
+void usart_data_first_config(uint32_t usart_periph, uint32_t msbf)
+{
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* configure LSB or MSB first */
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_MSBF);
+ USART_CTL1(usart_periph) |= (USART_CTL1_MSBF & msbf);
+}
+
+/*!
+ \brief USART inverted configure
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] invertpara: refer to usart_invert_enum
+ only one parameter can be selected which is shown as below:
+ \arg USART_DINV_ENABLE: data bit level inversion
+ \arg USART_DINV_DISABLE: data bit level not inversion
+ \arg USART_TXPIN_ENABLE: TX pin level inversion
+ \arg USART_TXPIN_DISABLE: TX pin level not inversion
+ \arg USART_RXPIN_ENABLE: RX pin level inversion
+ \arg USART_RXPIN_DISABLE: RX pin level not inversion
+ \arg USART_SWAP_ENABLE: swap TX/RX pins
+ \arg USART_SWAP_DISABLE: not swap TX/RX pins
+ \param[out] none
+ \retval none
+*/
+void usart_invert_config(uint32_t usart_periph, usart_invert_enum invertpara)
+{
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* inverted or not the specified signal */
+ switch(invertpara){
+ case USART_DINV_ENABLE:
+ USART_CTL1(usart_periph) |= USART_CTL1_DINV;
+ break;
+ case USART_DINV_DISABLE:
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_DINV);
+ break;
+ case USART_TXPIN_ENABLE:
+ USART_CTL1(usart_periph) |= USART_CTL1_TINV;
+ break;
+ case USART_TXPIN_DISABLE:
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_TINV);
+ break;
+ case USART_RXPIN_ENABLE:
+ USART_CTL1(usart_periph) |= USART_CTL1_RINV;
+ break;
+ case USART_RXPIN_DISABLE:
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_RINV);
+ break;
+ case USART_SWAP_ENABLE:
+ USART_CTL1(usart_periph) |= USART_CTL1_STRP;
+ break;
+ case USART_SWAP_DISABLE:
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_STRP);
+ break;
+ default:
+ break;
+ }
+}
+
+/*!
+ \brief enable the USART overrun function
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_overrun_enable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* enable overrun function */
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_OVRD);
+}
+
+/*!
+ \brief disable the USART overrun function
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_overrun_disable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* disable overrun function */
+ USART_CTL2(usart_periph) |= USART_CTL2_OVRD;
+}
+
+/*!
+ \brief configure the USART oversample mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] oversamp: oversample value
+ only one parameter can be selected which is shown as below:
+ \arg USART_OVSMOD_8: oversampling by 8
+ \arg USART_OVSMOD_16: oversampling by 16
+ \param[out] none
+ \retval none
+*/
+void usart_oversample_config(uint32_t usart_periph, uint32_t oversamp)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* clear OVSMOD bit */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_OVSMOD);
+ USART_CTL0(usart_periph) |= oversamp;
+}
+
+/*!
+ \brief configure the sample bit method
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] osb: sample bit
+ only one parameter can be selected which is shown as below:
+ \arg USART_OSB_1BIT: 1 bit
+ \arg USART_OSB_3BIT: 3 bits
+ \param[out] none
+ \retval none
+*/
+void usart_sample_bit_config(uint32_t usart_periph, uint32_t osb)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_OSB);
+ USART_CTL2(usart_periph) |= osb;
+}
+
+/*!
+ \brief enable receiver timeout
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_receiver_timeout_enable(uint32_t usart_periph)
+{
+ USART_CTL1(usart_periph) |= USART_CTL1_RTEN;
+}
+
+/*!
+ \brief disable receiver timeout
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_receiver_timeout_disable(uint32_t usart_periph)
+{
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_RTEN);
+}
+
+/*!
+ \brief configure receiver timeout threshold
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] rtimeout: 0x00000000-0x00FFFFFF, receiver timeout value in terms of number of baud clocks
+ \param[out] none
+ \retval none
+*/
+void usart_receiver_timeout_threshold_config(uint32_t usart_periph, uint32_t rtimeout)
+{
+ USART_RT(usart_periph) &= ~(USART_RT_RT);
+ USART_RT(usart_periph) |= rtimeout;
+}
+
+/*!
+ \brief USART transmit data function
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] data: data of transmission
+ \param[out] none
+ \retval none
+*/
+void usart_data_transmit(uint32_t usart_periph, uint32_t data)
+{
+ USART_TDATA(usart_periph) = (USART_TDATA_TDATA & data);
+}
+
+/*!
+ \brief USART receive data function
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval data of received
+*/
+uint16_t usart_data_receive(uint32_t usart_periph)
+{
+ return (uint16_t)(GET_BITS(USART_RDATA(usart_periph), 0U, 8U));
+}
+
+/*!
+ \brief enable auto baud rate detection
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_autobaud_detection_enable(uint32_t usart_periph)
+{
+ USART_CTL1(usart_periph) |= USART_CTL1_ABDEN;
+}
+
+/*!
+ \brief disable auto baud rate detection
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_autobaud_detection_disable(uint32_t usart_periph)
+{
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_ABDEN);
+}
+
+/*!
+ \brief configure auto baud rate detection mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] abdmod: auto baud rate detection mode
+ only one parameter can be selected which is shown as below:
+ \arg USART_ABDM_FTOR: falling edge to rising edge measurement
+ \arg USART_ABDM_FTOF: falling edge to falling edge measurement
+ \param[out] none
+ \retval none
+*/
+void usart_autobaud_detection_mode_config(uint32_t usart_periph, uint32_t abdmod)
+{
+ /* reset ABDM bits */
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_ABDM);
+ USART_CTL1(usart_periph) |= abdmod;
+}
+
+/*!
+ \brief address of the USART terminal
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] addr: 0x00-0xFF, address of USART terminal
+ \param[out] none
+ \retval none
+*/
+void usart_address_config(uint32_t usart_periph, uint8_t addr)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_ADDR);
+ USART_CTL1(usart_periph) |= (USART_CTL1_ADDR & (((uint32_t)addr) << 24));
+}
+
+/*!
+ \brief configure address detection mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] addmod: address detection mode
+ only one parameter can be selected which is shown as below:
+ \arg USART_ADDM_4BIT: 4 bits
+ \arg USART_ADDM_FULLBIT: full bits
+ \param[out] none
+ \retval none
+*/
+void usart_address_detection_mode_config(uint32_t usart_periph, uint32_t addmod)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_ADDM);
+ USART_CTL1(usart_periph) |= USART_CTL1_ADDM & (addmod);
+}
+
+/*!
+ \brief enable mute mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_mute_mode_enable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) |= USART_CTL0_MEN;
+}
+
+/*!
+ \brief disable mute mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_mute_mode_disable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_MEN);
+}
+
+/*!
+ \brief configure wakeup method in mute mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] wmethod: two methods be used to enter or exit the mute mode
+ only one parameter can be selected which is shown as below:
+ \arg USART_WM_IDLE: idle line
+ \arg USART_WM_ADDR: address mark
+ \param[out] none
+ \retval none
+*/
+void usart_mute_mode_wakeup_config(uint32_t usart_periph, uint32_t wmethod)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_WM);
+ USART_CTL0(usart_periph) |= wmethod;
+}
+
+/*!
+ \brief enable LIN mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_lin_mode_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL1(usart_periph) |= USART_CTL1_LMEN;
+}
+
+/*!
+ \brief disable LIN mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_lin_mode_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_LMEN);
+}
+
+/*!
+ \brief LIN break detection length
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] lblen: LIN break detection length
+ only one parameter can be selected which is shown as below:
+ \arg USART_LBLEN_10B: 10 bits break detection
+ \arg USART_LBLEN_11B: 11 bits break detection
+ \param[out] none
+ \retval none
+*/
+void usart_lin_break_detection_length_config(uint32_t usart_periph, uint32_t lblen)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_LBLEN);
+ USART_CTL1(usart_periph) |= USART_CTL1_LBLEN & (lblen);
+}
+
+/*!
+ \brief enable half-duplex mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_halfduplex_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) |= USART_CTL2_HDEN;
+}
+
+/*!
+ \brief disable half-duplex mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_halfduplex_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_HDEN);
+}
+
+/*!
+ \brief enable clock
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_clock_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL1(usart_periph) |= USART_CTL1_CKEN;
+}
+
+/*!
+ \brief disable clock
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_clock_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_CKEN);
+}
+
+/*!
+ \brief configure USART synchronous mode parameters
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] clen: last bit clock pulse
+ only one parameter can be selected which is shown as below:
+ \arg USART_CLEN_NONE: clock pulse of the last data bit (MSB) is not output to the CK pin
+ \arg USART_CLEN_EN: clock pulse of the last data bit (MSB) is output to the CK pin
+ \param[in] cph: clock phase
+ only one parameter can be selected which is shown as below:
+ \arg USART_CPH_1CK: first clock transition is the first data capture edge
+ \arg USART_CPH_2CK: second clock transition is the first data capture edge
+ \param[in] cpl: clock polarity
+ only one parameter can be selected which is shown as below:
+ \arg USART_CPL_LOW: steady low value on CK pin
+ \arg USART_CPL_HIGH: steady high value on CK pin
+ \param[out] none
+ \retval none
+*/
+void usart_synchronous_clock_config(uint32_t usart_periph, uint32_t clen, uint32_t cph, uint32_t cpl)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* reset USART_CTL1 CLEN,CPH,CPL bits */
+ USART_CTL1(usart_periph) &= ~(USART_CTL1_CLEN | USART_CTL1_CPH | USART_CTL1_CPL);
+
+ USART_CTL1(usart_periph) |= (USART_CTL1_CLEN & clen);
+ USART_CTL1(usart_periph) |= (USART_CTL1_CPH & cph);
+ USART_CTL1(usart_periph) |= (USART_CTL1_CPL & cpl);
+}
+
+/*!
+ \brief configure guard time value in smartcard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] guat: 0x00-0xFF
+ \param[out] none
+ \retval none
+*/
+void usart_guard_time_config(uint32_t usart_periph, uint32_t guat)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_GP(usart_periph) &= ~(USART_GP_GUAT);
+ USART_GP(usart_periph) |= (USART_GP_GUAT & ((guat) << 8));
+}
+
+/*!
+ \brief enable smartcard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_smartcard_mode_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) |= USART_CTL2_SCEN;
+}
+
+/*!
+ \brief disable smartcard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_smartcard_mode_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_SCEN);
+}
+
+/*!
+ \brief enable NACK in smartcard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_smartcard_mode_nack_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) |= USART_CTL2_NKEN;
+}
+
+/*!
+ \brief disable NACK in smartcard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_smartcard_mode_nack_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_NKEN);
+}
+
+/*!
+ \brief enable early NACK in smartcard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_smartcard_mode_early_nack_enable(uint32_t usart_periph)
+{
+ USART_RFCS(usart_periph) |= USART_RFCS_ELNACK;
+}
+
+/*!
+ \brief disable early NACK in smartcard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_smartcard_mode_early_nack_disable(uint32_t usart_periph)
+{
+ USART_RFCS(usart_periph) &= ~USART_RFCS_ELNACK;
+}
+
+/*!
+ \brief configure smartcard auto-retry number
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] scrtnum: 0x00000000-0x00000007, smartcard auto-retry number
+ \param[out] none
+ \retval none
+*/
+void usart_smartcard_autoretry_config(uint32_t usart_periph, uint32_t scrtnum)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_SCRTNUM);
+ USART_CTL2(usart_periph) |= (USART_CTL2_SCRTNUM & (scrtnum << 17));
+}
+
+/*!
+ \brief configure block length
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] bl: 0x00000000-0x000000FF
+ \param[out] none
+ \retval none
+*/
+void usart_block_length_config(uint32_t usart_periph, uint32_t bl)
+{
+ USART_RT(usart_periph) &= ~(USART_RT_BL);
+ USART_RT(usart_periph) |= (USART_RT_BL & ((bl) << 24));
+}
+
+/*!
+ \brief enable IrDA mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_irda_mode_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) |= USART_CTL2_IREN;
+}
+
+/*!
+ \brief disable IrDA mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_irda_mode_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_IREN);
+}
+
+/*!
+ \brief configure the peripheral clock prescaler in USART IrDA low-power or SmartCard mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] psc: 0x00000000-0x000000FF
+ \param[out] none
+ \retval none
+*/
+void usart_prescaler_config(uint32_t usart_periph, uint32_t psc)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ USART_GP(usart_periph) &= ~(USART_GP_PSC);
+ USART_GP(usart_periph) |= psc;
+}
+
+/*!
+ \brief configure IrDA low-power
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] irlp: IrDA low-power or normal
+ only one parameter can be selected which is shown as below:
+ \arg USART_IRLP_LOW: low-power
+ \arg USART_IRLP_NORMAL: normal
+ \param[out] none
+ \retval none
+*/
+void usart_irda_lowpower_config(uint32_t usart_periph, uint32_t irlp)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_IRLP);
+ USART_CTL2(usart_periph) |= (USART_CTL2_IRLP & irlp);
+}
+
+/*!
+ \brief configure hardware flow control RTS
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] rtsconfig: enable or disable RTS
+ only one parameter can be selected which is shown as below:
+ \arg USART_RTS_ENABLE: enable RTS
+ \arg USART_RTS_DISABLE: disable RTS
+ \param[out] none
+ \retval none
+*/
+void usart_hardware_flow_rts_config(uint32_t usart_periph, uint32_t rtsconfig)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_RTSEN);
+ USART_CTL2(usart_periph) |= rtsconfig;
+}
+
+/*!
+ \brief configure hardware flow control CTS
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] ctsconfig: enable or disable CTS
+ only one parameter can be selected which is shown as below:
+ \arg USART_CTS_ENABLE: enable CTS
+ \arg USART_CTS_DISABLE: disable CTS
+ \param[out] none
+ \retval none
+*/
+void usart_hardware_flow_cts_config(uint32_t usart_periph, uint32_t ctsconfig)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~USART_CTL2_CTSEN;
+ USART_CTL2(usart_periph) |= ctsconfig;
+}
+
+ /*!
+ \brief configure hardware flow control coherence mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] hcm:
+ only one parameter can be selected which is shown as below:
+ \arg USART_HCM_NONE: nRTS signal equals to the rxne status register
+ \arg USART_HCM_EN: nRTS signal is set when the last data bit has been sampled
+ \param[out] none
+ \retval none
+*/
+void usart_hardware_flow_coherence_config(uint32_t usart_periph, uint32_t hcm)
+{
+ USART_CHC(usart_periph) &= ~(USART_CHC_HCM);
+ USART_CHC(usart_periph) |= (USART_CHC_HCM & hcm);
+}
+
+/*!
+ \brief enable RS485 driver
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_rs485_driver_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) |= USART_CTL2_DEM;
+}
+
+/*!
+ \brief disable RS485 driver
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_rs485_driver_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_DEM);
+}
+
+/*!
+ \brief configure driver enable assertion time
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] deatime: 0x00000000-0x0000001F
+ \param[out] none
+ \retval none
+*/
+void usart_driver_assertime_config(uint32_t usart_periph, uint32_t deatime)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_DEA);
+ USART_CTL0(usart_periph) |= (USART_CTL0_DEA & ((deatime) << 21));
+}
+
+/*!
+ \brief configure driver enable de-assertion time
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] dedtime: 0x00000000-0x0000001F
+ \param[out] none
+ \retval none
+*/
+void usart_driver_deassertime_config(uint32_t usart_periph, uint32_t dedtime)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_DED);
+ USART_CTL0(usart_periph) |= (USART_CTL0_DED & ((dedtime) << 16));
+}
+
+/*!
+ \brief configure driver enable polarity mode
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] dep: DE signal
+ only one parameter can be selected which is shown as below:
+ \arg USART_DEP_HIGH: DE signal is active high
+ \arg USART_DEP_LOW: DE signal is active low
+ \param[out] none
+ \retval none
+*/
+void usart_depolarity_config(uint32_t usart_periph, uint32_t dep)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* reset DEP bit */
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_DEP);
+ USART_CTL2(usart_periph) |= (USART_CTL2_DEP & dep);
+}
+
+/*!
+ \brief configure USART DMA reception
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] dmacmd: enable or disable DMA for reception
+ only one parameter can be selected which is shown as below:
+ \arg USART_DENR_ENABLE: DMA enable for reception
+ \arg USART_DENR_DISABLE: DMA disable for reception
+ \param[out] none
+ \retval none
+*/
+void usart_dma_receive_config(uint32_t usart_periph, uint32_t dmacmd)
+{
+ USART_CTL2(usart_periph) &= ~USART_CTL2_DENR;
+ /* configure DMA reception */
+ USART_CTL2(usart_periph) |= dmacmd;
+}
+
+/*!
+ \brief configure USART DMA transmission
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] dmacmd: enable or disable DMA for transmission
+ only one parameter can be selected which is shown as below:
+ \arg USART_DENT_ENABLE: DMA enable for transmission
+ \arg USART_DENT_DISABLE: DMA disable for transmission
+ \param[out] none
+ \retval none
+*/
+void usart_dma_transmit_config(uint32_t usart_periph, uint32_t dmacmd)
+{
+ USART_CTL2(usart_periph) &= ~USART_CTL2_DENT;
+ /* configure DMA transmission */
+ USART_CTL2(usart_periph) |= dmacmd;
+}
+
+/*!
+ \brief disable DMA on reception error
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_reception_error_dma_disable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) |= USART_CTL2_DDRE;
+}
+
+/*!
+ \brief enable DMA on reception error
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_reception_error_dma_enable(uint32_t usart_periph)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_DDRE);
+}
+
+/*!
+ \brief enable USART to wakeup the mcu from deep-sleep mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_wakeup_enable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) |= USART_CTL0_UESM;
+}
+
+/*!
+ \brief disable USART to wakeup the mcu from deep-sleep mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[out] none
+ \retval none
+*/
+void usart_wakeup_disable(uint32_t usart_periph)
+{
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UESM);
+}
+
+/*!
+ \brief configure the USART wakeup mode from deep-sleep mode
+ \param[in] usart_periph: USARTx(x=0)
+ \param[in] wum: wakeup mode
+ only one parameter can be selected which is shown as below:
+ \arg USART_WUM_ADDR: WUF active on address match
+ \arg USART_WUM_STARTB: WUF active on start bit
+ \arg USART_WUM_RBNE: WUF active on RBNE
+ \param[out] none
+ \retval none
+*/
+void usart_wakeup_mode_config(uint32_t usart_periph, uint32_t wum)
+{
+ /* disable USART */
+ USART_CTL0(usart_periph) &= ~(USART_CTL0_UEN);
+ /* reset WUM bit */
+ USART_CTL2(usart_periph) &= ~(USART_CTL2_WUM);
+ USART_CTL2(usart_periph) |= USART_CTL2_WUM & (wum);
+}
+
+/*!
+ \brief enable receive FIFO
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_receive_fifo_enable(uint32_t usart_periph)
+{
+ USART_RFCS(usart_periph) |= USART_RFCS_RFEN;
+}
+
+/*!
+ \brief disable receive FIFO
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval none
+*/
+void usart_receive_fifo_disable(uint32_t usart_periph)
+{
+ USART_RFCS(usart_periph) &= ~(USART_RFCS_RFEN);
+}
+
+/*!
+ \brief read receive FIFO counter number
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[out] none
+ \retval receive FIFO counter number
+*/
+uint8_t usart_receive_fifo_counter_number(uint32_t usart_periph)
+{
+ return (uint8_t)(GET_BITS(USART_RFCS(usart_periph), 12U, 14U));
+}
+
+/*!
+ \brief get flag in STAT/CHC/RFCS register
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] flag: flag type
+ only one parameter can be selected which is shown as below:
+ \arg USART_FLAG_PERR: parity error flag
+ \arg USART_FLAG_FERR: frame error flag
+ \arg USART_FLAG_NERR: noise error flag
+ \arg USART_FLAG_ORERR: overrun error
+ \arg USART_FLAG_IDLE: idle line detected flag
+ \arg USART_FLAG_RBNE: read data buffer not empty
+ \arg USART_FLAG_TC: transmission completed
+ \arg USART_FLAG_TBE: transmit data register empty
+ \arg USART_FLAG_LBD: LIN break detected flag
+ \arg USART_FLAG_CTSF: CTS change flag
+ \arg USART_FLAG_CTS: CTS level
+ \arg USART_FLAG_RT: receiver timeout flag
+ \arg USART_FLAG_EB: end of block flag
+ \arg USART_FLAG_ABDE: auto baudrate detection error
+ \arg USART_FLAG_ABD: auto baudrate detection flag
+ \arg USART_FLAG_BSY: busy flag
+ \arg USART_FLAG_AM: address match flag
+ \arg USART_FLAG_SB: send break flag
+ \arg USART_FLAG_RWU: receiver wakeup from mute mode.
+ \arg USART_FLAG_WU: wakeup from deep-sleep mode flag
+ \arg USART_FLAG_TEA: transmit enable acknowledge flag
+ \arg USART_FLAG_REA: receive enable acknowledge flag
+ \arg USART_FLAG_EPERR: early parity error flag
+ \arg USART_FLAG_RFE: receive FIFO empty flag
+ \arg USART_FLAG_RFF: receive FIFO full flag
+ \arg USART_FLAG_RFFINT: receive FIFO full interrupt flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus usart_flag_get(uint32_t usart_periph, usart_flag_enum flag)
+{
+ if(RESET != (USART_REG_VAL(usart_periph, flag) & BIT(USART_BIT_POS(flag)))){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear USART status
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] flag: flag type
+ only one parameter can be selected which is shown as below:
+ \arg USART_FLAG_PERR: parity error flag
+ \arg USART_FLAG_FERR: frame error flag
+ \arg USART_FLAG_NERR: noise detected flag
+ \arg USART_FLAG_ORERR: overrun error flag
+ \arg USART_FLAG_IDLE: idle line detected flag
+ \arg USART_FLAG_TC: transmission complete flag
+ \arg USART_FLAG_LBD: LIN break detected flag
+ \arg USART_FLAG_CTSF: CTS change flag
+ \arg USART_FLAG_RT: receiver timeout flag
+ \arg USART_FLAG_EB: end of block flag
+ \arg USART_FLAG_AM: address match flag
+ \arg USART_FLAG_WU: wakeup from deep-sleep mode flag
+ \arg USART_FLAG_EPERR: early parity error flag
+ \param[out] none
+ \retval none
+*/
+void usart_flag_clear(uint32_t usart_periph, usart_flag_enum flag)
+{
+ USART_INTC(usart_periph) |= BIT(USART_BIT_POS(flag));
+}
+
+/*!
+ \brief enable USART interrupt
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] inttype: interrupt type
+ only one parameter can be selected which is shown as below:
+ \arg USART_INT_IDLE: idle interrupt
+ \arg USART_INT_RBNE: read data buffer not empty interrupt and
+ overrun error interrupt enable interrupt
+ \arg USART_INT_TC: transmission complete interrupt
+ \arg USART_INT_TBE: transmit data register empty interrupt
+ \arg USART_INT_PERR: parity error interrupt
+ \arg USART_INT_AM: address match interrupt
+ \arg USART_INT_RT: receiver timeout interrupt
+ \arg USART_INT_EB: end of block interrupt
+ \arg USART_INT_LBD: LIN break detection interrupt
+ \arg USART_INT_ERR: error interrupt enable in multibuffer communication
+ \arg USART_INT_CTS: CTS interrupt
+ \arg USART_INT_WU: wakeup from deep-sleep mode interrupt
+ \arg USART_INT_RFF: receive FIFO full interrupt enable
+ \param[out] none
+ \retval none
+*/
+void usart_interrupt_enable(uint32_t usart_periph, usart_interrupt_enum inttype)
+{
+ USART_REG_VAL(usart_periph, inttype) |= BIT(USART_BIT_POS(inttype));
+}
+
+/*!
+ \brief disable USART interrupt
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] inttype: interrupt type
+ only one parameter can be selected which is shown as below:
+ \arg USART_INT_IDLE: idle interrupt
+ \arg USART_INT_RBNE: read data buffer not empty interrupt and
+ overrun error interrupt
+ \arg USART_INT_TC: transmission complete interrupt
+ \arg USART_INT_TBE: transmit data register empty interrupt
+ \arg USART_INT_PERR: parity error interrupt
+ \arg USART_INT_AM: address match interrupt
+ \arg USART_INT_RT: receiver timeout interrupt
+ \arg USART_INT_EB: end of block interrupt
+ \arg USART_INT_LBD: LIN break detection interrupt
+ \arg USART_INT_ERR: error interrupt enable in multibuffer communication
+ \arg USART_INT_CTS: CTS interrupt
+ \arg USART_INT_WU: wakeup from deep-sleep mode interrupt
+ \arg USART_INT_RFF: receive FIFO full interrupt enable
+ \param[out] none
+ \retval none
+*/
+void usart_interrupt_disable(uint32_t usart_periph, usart_interrupt_enum inttype)
+{
+ USART_REG_VAL(usart_periph, inttype) &= ~BIT(USART_BIT_POS(inttype));
+}
+
+/*!
+ \brief enable USART command
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] cmdtype: command type
+ only one parameter can be selected which is shown as below:
+ \arg USART_CMD_ABDCMD: auto baudrate detection command
+ \arg USART_CMD_SBKCMD: send break command
+ \arg USART_CMD_MMCMD: mute mode command
+ \arg USART_CMD_RXFCMD: receive data flush command
+ \arg USART_CMD_TXFCMD: transmit data flush request
+ \param[out] none
+ \retval none
+*/
+void usart_command_enable(uint32_t usart_periph, uint32_t cmdtype)
+{
+ USART_CMD(usart_periph) |= (cmdtype);
+}
+
+/*!
+ \brief get USART interrupt and flag status
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] int_flag: interrupt and flag type, refer to usart_interrupt_flag_enum
+ only one parameter can be selected which is shown as below:
+ \arg USART_INT_FLAG_EB: end of block interrupt and flag
+ \arg USART_INT_FLAG_RT: receiver timeout interrupt and flag
+ \arg USART_INT_FLAG_AM: address match interrupt and flag
+ \arg USART_INT_FLAG_PERR: parity error interrupt and flag
+ \arg USART_INT_FLAG_TBE: transmitter buffer empty interrupt and flag
+ \arg USART_INT_FLAG_TC: transmission complete interrupt and flag
+ \arg USART_INT_FLAG_RBNE: read data buffer not empty interrupt and flag
+ \arg USART_INT_FLAG_RBNE_ORERR: read data buffer not empty interrupt and overrun error flag
+ \arg USART_INT_FLAG_IDLE: IDLE line detected interrupt and flag
+ \arg USART_INT_FLAG_LBD: LIN break detected interrupt and flag
+ \arg USART_INT_FLAG_WU: wakeup from deep-sleep mode interrupt and flag
+ \arg USART_INT_FLAG_CTS: CTS interrupt and flag
+ \arg USART_INT_FLAG_ERR_NERR: error interrupt and noise error flag
+ \arg USART_INT_FLAG_ERR_ORERR: error interrupt and overrun error
+ \arg USART_INT_FLAG_ERR_FERR: error interrupt and frame error flag
+ \arg USART_INT_FLAG_RFF: receive FIFO full interrupt and flag
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus usart_interrupt_flag_get(uint32_t usart_periph, usart_interrupt_flag_enum int_flag)
+{
+ uint32_t intenable = 0U, flagstatus = 0U;
+ /* get the interrupt enable bit status */
+ intenable = (USART_REG_VAL(usart_periph, int_flag) & BIT(USART_BIT_POS(int_flag)));
+ /* get the corresponding flag bit status */
+ flagstatus = (USART_REG_VAL2(usart_periph, int_flag) & BIT(USART_BIT_POS2(int_flag)));
+
+ if(flagstatus && intenable){
+ return SET;
+ }else{
+ return RESET;
+ }
+}
+
+/*!
+ \brief clear USART interrupt flag
+ \param[in] usart_periph: USARTx(x=0,1)
+ \param[in] flag: USART interrupt flag
+ only one parameter can be selected which is shown as below:
+ \arg USART_INT_FLAG_PERR: parity error flag
+ \arg USART_INT_FLAG_ERR_FERR: frame error flag
+ \arg USART_INT_FLAG_ERR_NERR: noise detected flag
+ \arg USART_INT_FLAG_RBNE_ORERR: read data buffer not empty interrupt and overrun error flag
+ \arg USART_INT_FLAG_ERR_ORERR: error interrupt and overrun error
+ \arg USART_INT_FLAG_IDLE: idle line detected flag
+ \arg USART_INT_FLAG_TC: transmission complete flag
+ \arg USART_INT_FLAG_LBD: LIN break detected flag
+ \arg USART_INT_FLAG_CTS: CTS change flag
+ \arg USART_INT_FLAG_RT: receiver timeout flag
+ \arg USART_INT_FLAG_EB: end of block flag
+ \arg USART_INT_FLAG_AM: address match flag
+ \arg USART_INT_FLAG_WU: wakeup from deep-sleep mode flag
+ \arg USART_INT_FLAG_RFF: receive FIFO full interrupt and flag
+ \param[out] none
+ \retval none
+*/
+void usart_interrupt_flag_clear(uint32_t usart_periph, usart_interrupt_flag_enum flag)
+{
+ if(USART_INT_FLAG_RFF == flag){
+ USART_RFCS(usart_periph) &= (uint32_t)(~USART_RFCS_RFFINT);
+ }else{
+ USART_INTC(usart_periph) |= BIT(USART_BIT_POS2(flag));
+ }
+}
diff --git a/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_wwdgt.c b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_wwdgt.c
new file mode 100644
index 0000000000..4d1ad0200c
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/GD32E230_standard_peripheral/Source/gd32e230_wwdgt.c
@@ -0,0 +1,148 @@
+/*!
+ \file gd32e230_wwdgt.c
+ \brief WWDGT driver
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e230_wwdgt.h"
+#include "gd32e230_rcu.h"
+
+/* WWDGT_CTL register value */
+#define CTL_CNT(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U)) /*!< write value to WWDGT_CTL_CNT bit field */
+/* WWDGT_CFG register value */
+#define CFG_WIN(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U)) /*!< write value to WWDGT_CFG_WIN bit field */
+
+/*!
+ \brief reset the window watchdog timer configuration
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void wwdgt_deinit(void)
+{
+ rcu_periph_reset_enable(RCU_WWDGTRST);
+ rcu_periph_reset_disable(RCU_WWDGTRST);
+}
+
+/*!
+ \brief start the window watchdog timer counter
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void wwdgt_enable(void)
+{
+ WWDGT_CTL |= WWDGT_CTL_WDGTEN;
+}
+
+/*!
+ \brief configure the window watchdog timer counter value
+ \param[in] counter_value: 0x00000000 - 0x0000007F
+ \param[out] none
+ \retval none
+*/
+void wwdgt_counter_update(uint16_t counter_value)
+{
+ uint32_t reg = 0x00000000U;
+
+ reg = WWDGT_CTL &(~(uint32_t)WWDGT_CTL_CNT);
+ reg |= (uint32_t)(CTL_CNT(counter_value));
+
+ WWDGT_CTL = (uint32_t)reg;
+}
+
+/*!
+ \brief configure counter value, window value, and prescaler divider value
+ \param[in] counter: 0x00000000 - 0x0000007F
+ \param[in] window: 0x00000000 - 0x0000007F
+ \param[in] prescaler: wwdgt prescaler value
+ only one parameter can be selected which is shown as below:
+ \arg WWDGT_CFG_PSC_DIV1: the time base of window watchdog counter = (PCLK1/4096)/1
+ \arg WWDGT_CFG_PSC_DIV2: the time base of window watchdog counter = (PCLK1/4096)/2
+ \arg WWDGT_CFG_PSC_DIV4: the time base of window watchdog counter = (PCLK1/4096)/4
+ \arg WWDGT_CFG_PSC_DIV8: the time base of window watchdog counter = (PCLK1/4096)/8
+ \param[out] none
+ \retval none
+*/
+void wwdgt_config(uint16_t counter, uint16_t window, uint32_t prescaler)
+{
+ uint32_t reg_cfg = 0x00000000U, reg_ctl = 0x00000000U;
+
+ /* clear WIN and PSC bits, clear CNT bit */
+ reg_cfg = WWDGT_CFG &(~((uint32_t)WWDGT_CFG_WIN|(uint32_t)WWDGT_CFG_PSC));
+ reg_ctl = WWDGT_CTL &(~(uint32_t)WWDGT_CTL_CNT);
+
+ /* configure WIN and PSC bits, configure CNT bit */
+ reg_cfg |= (uint32_t)(CFG_WIN(window));
+ reg_cfg |= (uint32_t)(prescaler);
+ reg_ctl |= (uint32_t)(CTL_CNT(counter));
+
+ WWDGT_CFG = (uint32_t)reg_cfg;
+ WWDGT_CTL = (uint32_t)reg_ctl;
+}
+
+/*!
+ \brief enable early wakeup interrupt of WWDGT
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void wwdgt_interrupt_enable(void)
+{
+ WWDGT_CFG |= WWDGT_CFG_EWIE;
+}
+
+/*!
+ \brief check early wakeup interrupt state of WWDGT
+ \param[in] none
+ \param[out] none
+ \retval FlagStatus: SET or RESET
+*/
+FlagStatus wwdgt_flag_get(void)
+{
+ if(RESET != (WWDGT_STAT & WWDGT_STAT_EWIF)){
+ return SET;
+ }
+ return RESET;
+}
+
+/*!
+ \brief clear early wakeup interrupt state of WWDGT
+ \param[in] none
+ \param[out] none
+ \retval none
+*/
+void wwdgt_flag_clear(void)
+{
+ WWDGT_STAT &= (uint32_t)(~(uint32_t)WWDGT_STAT_EWIF);
+}
diff --git a/bsp/gd32e230k-start/Libraries/SConscript b/bsp/gd32e230k-start/Libraries/SConscript
new file mode 100644
index 0000000000..eb4cfb77c7
--- /dev/null
+++ b/bsp/gd32e230k-start/Libraries/SConscript
@@ -0,0 +1,33 @@
+import rtconfig
+from building import *
+
+# get current directory
+cwd = GetCurrentDir()
+
+# The set of source files associated with this SConscript file.
+
+src = Glob('GD32F30x_standard_peripheral/Source/*.c')
+src += [cwd + '/CMSIS/GD/GD32F30x/Source/system_gd32f30x.c']
+
+#add for startup script
+if rtconfig.CROSS_TOOL == 'gcc':
+ src += [cwd + '/CMSIS/GD/GD32F30x/Source/GCC/startup_gd32f30x_hd.s']
+elif rtconfig.CROSS_TOOL == 'keil':
+ src += [cwd + '/CMSIS/GD/GD32F30x/Source/ARM/startup_gd32f30x_hd.s']
+elif rtconfig.CROSS_TOOL == 'iar':
+ src += [cwd + '/CMSIS/GD/GD32F30x/Source/IAR/startup_gd32f30x_hd.s']
+
+path = [
+ cwd + '/CMSIS/GD/GD32F30x/Include',
+ cwd + '/CMSIS',
+ cwd + '/GD32F30x_standard_peripheral/Include',]
+
+if GetDepend(['RT_USING_BSP_USB']):
+ path += [cwd + '/GD32F30x_usb_driver/Include']
+ src += [cwd + '/GD32F30x_usb_driver/Source']
+
+CPPDEFINES = ['USE_STDPERIPH_DRIVER', 'GD32F30X_HD']
+
+group = DefineGroup('GD32_Lib', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
+
+Return('group')
diff --git a/bsp/gd32e230k-start/SConscript b/bsp/gd32e230k-start/SConscript
new file mode 100644
index 0000000000..fe0ae941ae
--- /dev/null
+++ b/bsp/gd32e230k-start/SConscript
@@ -0,0 +1,14 @@
+# for module compiling
+import os
+Import('RTT_ROOT')
+
+cwd = str(Dir('#'))
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+ path = os.path.join(cwd, d)
+ if os.path.isfile(os.path.join(path, 'SConscript')):
+ objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')
diff --git a/bsp/gd32e230k-start/SConstruct b/bsp/gd32e230k-start/SConstruct
new file mode 100644
index 0000000000..1cdbaab4a8
--- /dev/null
+++ b/bsp/gd32e230k-start/SConstruct
@@ -0,0 +1,39 @@
+import os
+import sys
+import rtconfig
+
+if os.getenv('RTT_ROOT'):
+ RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+ RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+try:
+ from building import *
+except:
+ print('Cannot found RT-Thread root directory, please check RTT_ROOT')
+ print(RTT_ROOT)
+ exit(-1)
+
+TARGET = 'rtthread-gd32f30x.' + rtconfig.TARGET_EXT
+
+env = Environment(tools = ['mingw'],
+ AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+ CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
+ AR = rtconfig.AR, ARFLAGS = '-rc',
+ LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+
+if rtconfig.PLATFORM == 'iar':
+ env.Replace(CCCOM = ['$CC $CCFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -o $TARGET $SOURCES'])
+ env.Replace(ARFLAGS = [''])
+ env.Replace(LINKCOM = env["LINKCOM"] + ' --map project.map')
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
+
+# make a building
+DoBuilding(TARGET, objs)
diff --git a/bsp/gd32e230k-start/applications/SConscript b/bsp/gd32e230k-start/applications/SConscript
new file mode 100644
index 0000000000..01eb940dfb
--- /dev/null
+++ b/bsp/gd32e230k-start/applications/SConscript
@@ -0,0 +1,11 @@
+Import('RTT_ROOT')
+Import('rtconfig')
+from building import *
+
+cwd = os.path.join(str(Dir('#')), 'applications')
+src = Glob('*.c')
+CPPPATH = [cwd, str(Dir('#'))]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/bsp/gd32e230k-start/applications/main.c b/bsp/gd32e230k-start/applications/main.c
new file mode 100644
index 0000000000..6e190ae3cc
--- /dev/null
+++ b/bsp/gd32e230k-start/applications/main.c
@@ -0,0 +1,27 @@
+/*
+ * File : main.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2015-07-29 Arda.Fu first implementation
+ */
+#include <rtthread.h>
+#include <board.h>
+
+int main(void)
+{
+ /* user app entry */
+
+ return 0;
+}
+
+
+
+
+
diff --git a/bsp/gd32e230k-start/drivers/SConscript b/bsp/gd32e230k-start/drivers/SConscript
new file mode 100644
index 0000000000..ef03e2dcf0
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/SConscript
@@ -0,0 +1,33 @@
+Import('RTT_ROOT')
+Import('rtconfig')
+from building import *
+
+cwd = os.path.join(str(Dir('#')), 'drivers')
+
+# add the general drivers.
+src = Split("""
+board.c
+drv_usart.c
+""")
+
+CPPPATH = [cwd]
+
+# add spi drivers.
+if GetDepend('RT_USING_SPI'):
+ src += ['drv_spi.c']
+
+# add i2c drivers.
+if GetDepend('RT_USING_I2C'):
+ src += ['drv_i2c.c']
+
+# add pin drivers.
+if GetDepend('RT_USING_PIN'):
+ src += ['drv_gpio.c']
+
+# add spi flash drivers.
+if GetDepend('RT_USING_SFUD'):
+ src += ['drv_spi_flash.c']
+
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/bsp/gd32e230k-start/drivers/board.c b/bsp/gd32e230k-start/drivers/board.c
new file mode 100644
index 0000000000..9ca024ec48
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/board.c
@@ -0,0 +1,87 @@
+/*
+ * File : board.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2009-01-05 Bernard first implementation
+ */
+#include <stdint.h>
+#include <rthw.h>
+#include <rtthread.h>
+#include <board.h>
+
+/**
+ * @brief This function is executed in case of error occurrence.
+ * @param None
+ * @retval None
+ */
+void Error_Handler(void)
+{
+ /* USER CODE BEGIN Error_Handler */
+ /* User can add his own implementation to report the HAL error return state */
+ while (1)
+ {
+ }
+ /* USER CODE END Error_Handler */
+}
+
+/** System Clock Configuration
+*/
+void SystemClock_Config(void)
+{
+ SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
+ NVIC_SetPriority(SysTick_IRQn, 0);
+}
+
+/**
+ * This is the timer interrupt service routine.
+ *
+ */
+void SysTick_Handler(void)
+{
+ /* enter interrupt */
+ rt_interrupt_enter();
+
+ rt_tick_increase();
+
+ /* leave interrupt */
+ rt_interrupt_leave();
+}
+
+/**
+ * This function will initial GD32 board.
+ */
+void rt_hw_board_init()
+{
+ /* NVIC Configuration */
+#define NVIC_VTOR_MASK 0x3FFFFF80
+#ifdef VECT_TAB_RAM
+ /* Set the Vector Table base location at 0x10000000 */
+ SCB->VTOR = (0x10000000 & NVIC_VTOR_MASK);
+#else /* VECT_TAB_FLASH */
+ /* Set the Vector Table base location at 0x08000000 */
+ SCB->VTOR = (0x08000000 & NVIC_VTOR_MASK);
+#endif
+
+ SystemClock_Config();
+
+#ifdef RT_USING_COMPONENTS_INIT
+ rt_components_board_init();
+#endif
+
+#ifdef RT_USING_CONSOLE
+ rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif
+
+#ifdef RT_USING_HEAP
+ rt_system_heap_init((void*)HEAP_BEGIN, (void*)HEAP_END);
+#endif
+}
+
+/*@}*/
diff --git a/bsp/gd32e230k-start/drivers/board.h b/bsp/gd32e230k-start/drivers/board.h
new file mode 100644
index 0000000000..de344e8768
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/board.h
@@ -0,0 +1,47 @@
+/*
+ * File : board.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2009-09-22 Bernard add board.h to this bsp
+ */
+
+// <<< Use Configuration Wizard in Context Menu >>>
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+#include <gd32e230.h>
+
+// <o> Internal SRAM memory size[Kbytes] <8-64>
+// <i>Default: 64
+#ifdef __ICCARM__
+// Use *.icf ram symbal, to avoid hardcode.
+extern char __ICFEDIT_region_RAM_end__;
+#define GD32_SRAM_END &__ICFEDIT_region_RAM_end__
+#else
+#define GD32_SRAM_SIZE 64
+#define GD32_SRAM_END (0x20000000 + GD32_SRAM_SIZE * 1024)
+#endif
+
+#ifdef __CC_ARM
+extern int Image$$RW_IRAM1$$ZI$$Limit;
+#define HEAP_BEGIN (&Image$$RW_IRAM1$$ZI$$Limit)
+#elif __ICCARM__
+#pragma section="HEAP"
+#define HEAP_BEGIN (__segment_end("HEAP"))
+#else
+extern int __bss_end;
+#define HEAP_BEGIN (&__bss_end)
+#endif
+
+#define HEAP_END GD32_SRAM_END
+
+#endif
+
+//*** <<< end of configuration section >>> ***
diff --git a/bsp/gd32e230k-start/drivers/drv_gpio.c b/bsp/gd32e230k-start/drivers/drv_gpio.c
new file mode 100644
index 0000000000..6b9ecf4e34
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_gpio.c
@@ -0,0 +1,539 @@
+/*
+ * File : drv_gpio.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2015, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-10-20 ZYH the first version
+ * 2018-04-23 misonyo port to gd32f30x
+ */
+
+#include "drv_gpio.h"
+#include <rtdevice.h>
+#include <rthw.h>
+#include "gd32e230.h"
+#include "gd32e230_exti.h"
+
+#ifdef RT_USING_PIN
+
+#define __GD32_PIN(index, port, pin) {index, RCU_GPIO##port, GPIO##port, \
+ GPIO_PIN_##pin, EXTI_SOURCE_GPIO##port, EXTI_SOURCE_PIN##pin}
+#define __GD32_PIN_DEFAULT {-1, (rcu_periph_enum)0, 0, 0}
+
+/* GD32 GPIO driver */
+struct pin_index
+{
+ rt_int16_t index;
+ rcu_periph_enum clk;
+ rt_uint32_t gpio_periph;
+ rt_uint32_t pin;
+ rt_uint32_t port_src;
+ rt_uint32_t pin_src;
+};
+
+static const struct pin_index pins[] =
+{
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(7, C, 13),
+ __GD32_PIN(8, C, 14),
+ __GD32_PIN(9, C, 15),
+ __GD32_PIN(10, F, 0),
+ __GD32_PIN(11, F, 1),
+ __GD32_PIN(12, F, 2),
+ __GD32_PIN(13, F, 3),
+ __GD32_PIN(14, F, 4),
+ __GD32_PIN(15, F, 5),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(18, F, 6),
+ __GD32_PIN(19, F, 7),
+ __GD32_PIN(20, F, 8),
+ __GD32_PIN(21, F, 9),
+ __GD32_PIN(22, F, 10),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(26, C, 0),
+ __GD32_PIN(27, C, 1),
+ __GD32_PIN(28, C, 2),
+ __GD32_PIN(29, C, 3),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(34, A, 0),
+ __GD32_PIN(35, A, 1),
+ __GD32_PIN(36, A, 2),
+ __GD32_PIN(37, A, 3),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(40, A, 4),
+ __GD32_PIN(41, A, 5),
+ __GD32_PIN(42, A, 6),
+ __GD32_PIN(43, A, 7),
+ __GD32_PIN(44, C, 4),
+ __GD32_PIN(45, C, 5),
+ __GD32_PIN(46, B, 0),
+ __GD32_PIN(47, B, 1),
+ __GD32_PIN(48, B, 2),
+ __GD32_PIN(49, F, 11),
+ __GD32_PIN(50, F, 12),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(53, F, 13),
+ __GD32_PIN(54, F, 14),
+ __GD32_PIN(55, F, 15),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(69, B, 10),
+ __GD32_PIN(70, B, 11),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(73, B, 12),
+ __GD32_PIN(74, B, 13),
+ __GD32_PIN(75, B, 14),
+ __GD32_PIN(76, B, 15),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(96, C, 6),
+ __GD32_PIN(97, C, 7),
+ __GD32_PIN(98, C, 8),
+ __GD32_PIN(99, C, 9),
+ __GD32_PIN(100, A, 8),
+ __GD32_PIN(101, A, 9),
+ __GD32_PIN(102, A, 10),
+ __GD32_PIN(103, A, 11),
+ __GD32_PIN(104, A, 12),
+ __GD32_PIN(105, A, 13),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(109, A, 14),
+ __GD32_PIN(110, A, 15),
+ __GD32_PIN(111, C, 10),
+ __GD32_PIN(112, C, 11),
+ __GD32_PIN(113, C, 12),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(133, B, 3),
+ __GD32_PIN(134, B, 4),
+ __GD32_PIN(135, B, 5),
+ __GD32_PIN(136, B, 6),
+ __GD32_PIN(137, B, 7),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN(139, B, 8),
+ __GD32_PIN(140, B, 9),
+ __GD32_PIN_DEFAULT,
+ __GD32_PIN_DEFAULT,
+};
+
+struct pin_irq_map
+{
+ rt_uint16_t pinbit;
+ IRQn_Type irqno;
+};
+static const struct pin_irq_map pin_irq_map[] =
+{
+ {GPIO_PIN_0, EXTI0_1_IRQn},
+ {GPIO_PIN_1, EXTI0_1_IRQn},
+ {GPIO_PIN_2, EXTI2_3_IRQn},
+ {GPIO_PIN_3, EXTI2_3_IRQn},
+ {GPIO_PIN_4, EXTI4_15_IRQn},
+ {GPIO_PIN_5, EXTI4_15_IRQn},
+ {GPIO_PIN_6, EXTI4_15_IRQn},
+ {GPIO_PIN_7, EXTI4_15_IRQn},
+ {GPIO_PIN_8, EXTI4_15_IRQn},
+ {GPIO_PIN_9, EXTI4_15_IRQn},
+ {GPIO_PIN_10, EXTI4_15_IRQn},
+ {GPIO_PIN_11, EXTI4_15_IRQn},
+ {GPIO_PIN_12, EXTI4_15_IRQn},
+ {GPIO_PIN_13, EXTI4_15_IRQn},
+ {GPIO_PIN_14, EXTI4_15_IRQn},
+ {GPIO_PIN_15, EXTI4_15_IRQn},
+};
+struct rt_pin_irq_hdr pin_irq_hdr_tab[] =
+{
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+ {-1, 0, RT_NULL, RT_NULL},
+};
+
+#define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
+const struct pin_index *get_pin(rt_uint8_t pin)
+{
+ const struct pin_index *index;
+
+ if (pin < ITEM_NUM(pins))
+ {
+ index = &pins[pin];
+ if (index->index == -1)
+ index = RT_NULL;
+ }
+ else
+ {
+ index = RT_NULL;
+ }
+
+ return index;
+};
+
+void gd32_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
+{
+ const struct pin_index *index;
+ rt_uint32_t pin_mode;
+ rt_uint32_t otype;
+ rt_uint32_t pull_up_down;
+ index = get_pin(pin);
+ if (index == RT_NULL)
+ {
+ return;
+ }
+
+ /* GPIO Periph clock enable */
+ rcu_periph_clock_enable(index->clk);
+ pin_mode = GPIO_MODE_OUTPUT;
+ otype = GPIO_OTYPE_PP;
+ pull_up_down = GPIO_PUPD_NONE;
+
+ switch(mode)
+ {
+ case PIN_MODE_OUTPUT:
+ /* output setting */
+ break;
+ case PIN_MODE_OUTPUT_OD:
+ /* output setting: od. */
+ otype = GPIO_OTYPE_OD;
+ break;
+ case PIN_MODE_INPUT:
+ /* input setting: not pull. */
+ pin_mode = GPIO_MODE_INPUT;
+ break;
+ case PIN_MODE_INPUT_PULLUP:
+ /* input setting: pull up. */
+ pin_mode = GPIO_MODE_INPUT;
+ pull_up_down = GPIO_PUPD_PULLUP;
+ break;
+ case PIN_MODE_INPUT_PULLDOWN:
+ /* input setting: pull down. */
+ pin_mode = GPIO_MODE_INPUT;
+ pull_up_down = GPIO_PUPD_PULLDOWN;
+ break;
+ default:
+ break;
+ }
+
+ gpio_mode_set(index->gpio_periph, pin_mode, pull_up_down, index->pin);
+ gpio_output_options_set(index->gpio_periph, otype, GPIO_OSPEED_50MHZ, index->pin);
+
+}
+
+void gd32_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
+{
+ const struct pin_index *index;
+
+ index = get_pin(pin);
+ if (index == RT_NULL)
+ {
+ return;
+ }
+
+ gpio_bit_write(index->gpio_periph, index->pin, (bit_status)value);
+}
+
+int gd32_pin_read(rt_device_t dev, rt_base_t pin)
+{
+ int value;
+ const struct pin_index *index;
+
+ value = PIN_LOW;
+
+ index = get_pin(pin);
+ if (index == RT_NULL)
+ {
+ return value;
+ }
+
+ value = gpio_input_bit_get(index->gpio_periph, index->pin);
+
+ return value;
+}
+
+
+rt_inline rt_int32_t bit2bitno(rt_uint32_t bit)
+{
+ rt_uint8_t i;
+ for (i = 0; i < 32; i++)
+ {
+ if ((0x01 << i) == bit)
+ {
+ return i;
+ }
+ }
+ return -1;
+}
+rt_inline const struct pin_irq_map *get_pin_irq_map(rt_uint32_t pinbit)
+{
+ rt_int32_t mapindex = bit2bitno(pinbit);
+ if (mapindex < 0 || mapindex >= ITEM_NUM(pin_irq_map))
+ {
+ return RT_NULL;
+ }
+ return &pin_irq_map[mapindex];
+};
+rt_err_t gd32_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
+ rt_uint32_t mode, void (*hdr)(void *args), void *args)
+{
+ const struct pin_index *index;
+ rt_base_t level;
+ rt_int32_t hdr_index = -1;
+
+ index = get_pin(pin);
+ if (index == RT_NULL)
+ {
+ return RT_EINVAL;
+ }
+ hdr_index = bit2bitno(index->pin);
+ if (hdr_index < 0 || hdr_index >= ITEM_NUM(pin_irq_map))
+ {
+ return RT_EINVAL;
+ }
+
+ level = rt_hw_interrupt_disable();
+ if (pin_irq_hdr_tab[hdr_index].pin == pin &&
+ pin_irq_hdr_tab[hdr_index].hdr == hdr &&
+ pin_irq_hdr_tab[hdr_index].mode == mode &&
+ pin_irq_hdr_tab[hdr_index].args == args)
+ {
+ rt_hw_interrupt_enable(level);
+ return RT_EOK;
+ }
+ if (pin_irq_hdr_tab[hdr_index].pin != -1)
+ {
+ rt_hw_interrupt_enable(level);
+ return RT_EFULL;
+ }
+ pin_irq_hdr_tab[hdr_index].pin = pin;
+ pin_irq_hdr_tab[hdr_index].hdr = hdr;
+ pin_irq_hdr_tab[hdr_index].mode = mode;
+ pin_irq_hdr_tab[hdr_index].args = args;
+ rt_hw_interrupt_enable(level);
+
+ return RT_EOK;
+}
+rt_err_t gd32_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
+{
+ const struct pin_index *index;
+ rt_base_t level;
+ rt_int32_t hdr_index = -1;
+
+ index = get_pin(pin);
+ if (index == RT_NULL)
+ {
+ return RT_EINVAL;
+ }
+ hdr_index = bit2bitno(index->pin);
+ if (hdr_index < 0 || hdr_index >= ITEM_NUM(pin_irq_map))
+ {
+ return RT_EINVAL;
+ }
+
+ level = rt_hw_interrupt_disable();
+ if (pin_irq_hdr_tab[hdr_index].pin == -1)
+ {
+ rt_hw_interrupt_enable(level);
+ return RT_EOK;
+ }
+ pin_irq_hdr_tab[hdr_index].pin = -1;
+ pin_irq_hdr_tab[hdr_index].hdr = RT_NULL;
+ pin_irq_hdr_tab[hdr_index].mode = 0;
+ pin_irq_hdr_tab[hdr_index].args = RT_NULL;
+ rt_hw_interrupt_enable(level);
+
+ return RT_EOK;
+}
+rt_err_t gd32_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled)
+{
+ const struct pin_index *index;
+ const struct pin_irq_map *irqmap;
+ rt_base_t level;
+ rt_int32_t hdr_index = -1;
+ exti_trig_type_enum trigger_mode;
+
+ index = get_pin(pin);
+ if (index == RT_NULL)
+ {
+ return RT_EINVAL;
+ }
+ if (enabled == PIN_IRQ_ENABLE)
+ {
+ hdr_index = bit2bitno(index->pin);
+ if (hdr_index < 0 || hdr_index >= ITEM_NUM(pin_irq_map))
+ {
+ return RT_EINVAL;
+ }
+ level = rt_hw_interrupt_disable();
+ if (pin_irq_hdr_tab[hdr_index].pin == -1)
+ {
+ rt_hw_interrupt_enable(level);
+ return RT_EINVAL;
+ }
+ irqmap = &pin_irq_map[hdr_index];
+
+ switch (pin_irq_hdr_tab[hdr_index].mode)
+ {
+ case PIN_IRQ_MODE_RISING:
+ trigger_mode = EXTI_TRIG_RISING;
+ break;
+ case PIN_IRQ_MODE_FALLING:
+ trigger_mode = EXTI_TRIG_FALLING;
+ break;
+ case PIN_IRQ_MODE_RISING_FALLING:
+ trigger_mode = EXTI_TRIG_BOTH;
+ break;
+ default:
+ rt_hw_interrupt_enable(level);
+ return RT_EINVAL;
+ }
+
+ //rcu_periph_clock_enable(RCU_AF);
+
+ /* enable and set interrupt priority */
+ nvic_irq_enable(irqmap->irqno, 5U);
+
+ /* connect EXTI line to GPIO pin */
+ syscfg_exti_line_config(index->port_src, index->pin_src);
+
+ /* configure EXTI line */
+ exti_init((exti_line_enum)(index->pin), EXTI_INTERRUPT, trigger_mode);
+ exti_interrupt_flag_clear((exti_line_enum)(index->pin));
+
+ rt_hw_interrupt_enable(level);
+ }
+ else if (enabled == PIN_IRQ_DISABLE)
+ {
+ irqmap = get_pin_irq_map(index->pin);
+ if (irqmap == RT_NULL)
+ {
+ return RT_EINVAL;
+ }
+ nvic_irq_disable(irqmap->irqno);
+ }
+ else
+ {
+ return RT_EINVAL;
+ }
+
+ return RT_EOK;
+}
+const static struct rt_pin_ops _gd32_pin_ops =
+{
+ gd32_pin_mode,
+ gd32_pin_write,
+ gd32_pin_read,
+ gd32_pin_attach_irq,
+ gd32_pin_detach_irq,
+ gd32_pin_irq_enable,
+};
+
+int rt_hw_pin_init(void)
+{
+ int result;
+
+ result = rt_device_pin_register("pin", &_gd32_pin_ops, RT_NULL);
+
+ return result;
+}
+INIT_BOARD_EXPORT(rt_hw_pin_init);
+
+rt_inline void pin_irq_hdr(int irqno)
+{
+ if (pin_irq_hdr_tab[irqno].hdr)
+ {
+ pin_irq_hdr_tab[irqno].hdr(pin_irq_hdr_tab[irqno].args);
+ }
+}
+
+void GD32_GPIO_EXTI_IRQHandler(rt_int8_t exti_line)
+{
+ if(RESET != exti_interrupt_flag_get((exti_line_enum)(1 << exti_line)))
+ {
+ pin_irq_hdr(exti_line);
+ exti_interrupt_flag_clear((exti_line_enum)(1 << exti_line));
+ }
+}
+void EXTI0_IRQHandler(void)
+{
+ rt_interrupt_enter();
+ GD32_GPIO_EXTI_IRQHandler(0);
+ rt_interrupt_leave();
+}
+void EXTI1_IRQHandler(void)
+{
+ rt_interrupt_enter();
+ GD32_GPIO_EXTI_IRQHandler(1);
+ rt_interrupt_leave();
+}
+void EXTI2_IRQHandler(void)
+{
+ rt_interrupt_enter();
+ GD32_GPIO_EXTI_IRQHandler(2);
+ rt_interrupt_leave();
+}
+void EXTI3_IRQHandler(void)
+{
+ rt_interrupt_enter();
+ GD32_GPIO_EXTI_IRQHandler(3);
+ rt_interrupt_leave();
+}
+void EXTI4_IRQHandler(void)
+{
+ rt_interrupt_enter();
+ GD32_GPIO_EXTI_IRQHandler(4);
+ rt_interrupt_leave();
+}
+void EXTI5_9_IRQHandler(void)
+{
+ rt_interrupt_enter();
+ GD32_GPIO_EXTI_IRQHandler(5);
+ GD32_GPIO_EXTI_IRQHandler(6);
+ GD32_GPIO_EXTI_IRQHandler(7);
+ GD32_GPIO_EXTI_IRQHandler(8);
+ GD32_GPIO_EXTI_IRQHandler(9);
+ rt_interrupt_leave();
+}
+void EXTI10_15_IRQHandler(void)
+{
+ rt_interrupt_enter();
+ GD32_GPIO_EXTI_IRQHandler(10);
+ GD32_GPIO_EXTI_IRQHandler(11);
+ GD32_GPIO_EXTI_IRQHandler(12);
+ GD32_GPIO_EXTI_IRQHandler(13);
+ GD32_GPIO_EXTI_IRQHandler(14);
+ GD32_GPIO_EXTI_IRQHandler(15);
+ rt_interrupt_leave();
+}
+
+#endif
diff --git a/bsp/gd32e230k-start/drivers/drv_gpio.h b/bsp/gd32e230k-start/drivers/drv_gpio.h
new file mode 100644
index 0000000000..bca532ff2d
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_gpio.h
@@ -0,0 +1,18 @@
+/*
+ * File : drv_gpio.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2015, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2015-01-05 Bernard the first version
+ */
+#ifndef GPIO_H__
+#define GPIO_H__
+
+
+#endif
diff --git a/bsp/gd32e230k-start/drivers/drv_i2c.c b/bsp/gd32e230k-start/drivers/drv_i2c.c
new file mode 100644
index 0000000000..c0fbd5f7e9
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_i2c.c
@@ -0,0 +1,381 @@
+/*
+ * File : drv_i2c.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-06-05 tanek first implementation.
+ * 2018-04-19 misonyo Porting for gd32f30x
+ */
+
+#include "drv_i2c.h"
+#include <rtthread.h>
+#include "gd32e230.h"
+
+#ifdef RT_USING_I2C
+
+#include <rtdevice.h>
+
+#ifdef RT_USING_I2C_BITOPS
+
+/*user can change this*/
+#define I2C_BUS_NAME "i2c2"
+
+/*user should change this to adapt specific board*/
+#define I2C_SCL_PIN GPIO_PIN_4
+#define I2C_SCL_PORT GPIOE
+#define I2C_SCL_CLK RCU_GPIOE
+#define I2C_SDA_PIN GPIO_PIN_5
+#define I2C_SDA_PORT GPIOE
+#define I2C_SDA_CLK RCU_GPIOE
+
+struct gd32_i2c_bit_data
+{
+ struct
+ {
+ rcu_periph_enum clk;
+ rt_uint32_t port;
+ rt_uint32_t pin;
+ }scl, sda;
+};
+
+static void gpio_set_sda(void *data, rt_int32_t state)
+{
+ struct gd32_i2c_bit_data* bd = data;
+
+ if (state)
+ {
+ gpio_bit_set(bd->sda.port, bd->sda.pin);
+ }
+ else
+ {
+ gpio_bit_reset(bd->sda.port, bd->sda.pin);
+ }
+}
+
+static void gpio_set_scl(void *data, rt_int32_t state)
+{
+ struct gd32_i2c_bit_data* bd = data;
+ if (state)
+ {
+ gpio_bit_set(bd->scl.port, bd->scl.pin);
+ }
+ else
+ {
+ gpio_bit_reset(bd->scl.port, bd->scl.pin);
+ }
+}
+
+static rt_int32_t gpio_get_sda(void *data)
+{
+ struct gd32_i2c_bit_data* bd = data;
+
+ return gpio_input_bit_get(bd->sda.port, bd->sda.pin);
+}
+
+static rt_int32_t gpio_get_scl(void *data)
+{
+ struct gd32_i2c_bit_data* bd = data;
+
+ return gpio_input_bit_get(bd->scl.port, bd->scl.pin);
+}
+
+static void gpio_udelay(rt_uint32_t us)
+{
+ int i = ( rcu_clock_freq_get(CK_SYS) / 4000000 * us);
+ while(i)
+ {
+ i--;
+ }
+}
+
+static void drv_i2c_gpio_init(const struct gd32_i2c_bit_data* bd)
+{
+ rcu_periph_clock_enable(bd->sda.clk);
+ rcu_periph_clock_enable(bd->scl.clk);
+ gpio_init(bd->sda.port, GPIO_MODE_OUT_OD, GPIO_OSPEED_10MHZ, bd->sda.pin);
+ gpio_init(bd->scl.port, GPIO_MODE_OUT_OD, GPIO_OSPEED_10MHZ, bd->scl.pin);
+
+ gpio_bit_set(bd->sda.port, bd->sda.pin);
+ gpio_bit_set(bd->scl.port, bd->scl.pin);
+}
+
+#else /* use hardware i2c */
+
+struct gd32_i2c_bus
+{
+ struct rt_i2c_bus_device parent;
+ rt_uint32_t i2c_periph;
+};
+
+static int gd32_i2c_read(rt_uint32_t i2c_periph, rt_uint16_t slave_address, rt_uint8_t* p_buffer, rt_uint16_t data_byte)
+{
+ /* wait until I2C bus is idle */
+ while(i2c_flag_get(i2c_periph, I2C_FLAG_I2CBSY));
+
+ /* send a start condition to I2C bus */
+ i2c_start_on_bus(i2c_periph);
+
+ /* wait until SBSEND bit is set */
+ while(!i2c_flag_get(i2c_periph, I2C_FLAG_SBSEND));
+
+ /* send slave address to I2C bus */
+ i2c_master_addressing(i2c_periph, slave_address<<1, I2C_RECEIVER);
+
+ /* wait until ADDSEND bit is set */
+ while(!i2c_flag_get(i2c_periph, I2C_FLAG_ADDSEND));
+
+ /* clear the ADDSEND bit */
+ i2c_flag_clear(i2c_periph,I2C_FLAG_ADDSEND);
+
+ if(1 == data_byte){
+ /* disable acknowledge */
+ i2c_ack_config(i2c_periph,I2C_ACK_DISABLE);
+ /* send a stop condition to I2C bus */
+ i2c_stop_on_bus(i2c_periph);
+ }
+
+ /* while there is data to be read */
+ while(data_byte)
+ {
+ /* wait until the RBNE bit is set and clear it */
+ if(i2c_flag_get(i2c_periph, I2C_FLAG_RBNE))
+ {
+ /* read a byte from the EEPROM */
+ *p_buffer = i2c_data_receive(i2c_periph);
+
+ /* point to the next location where the byte read will be saved */
+ p_buffer++;
+
+ /* decrement the read bytes counter */
+ data_byte--;
+ if(1 == data_byte)
+ {
+ /* disable acknowledge */
+ i2c_ack_config(i2c_periph,I2C_ACK_DISABLE);
+ /* send a stop condition to I2C bus */
+ i2c_stop_on_bus(i2c_periph);
+ }
+ }
+ }
+
+ /* wait until the stop condition is finished */
+ while(I2C_CTL0(i2c_periph)&0x0200);
+
+ /* enable acknowledge */
+ i2c_ack_config(i2c_periph,I2C_ACK_ENABLE);
+
+ i2c_ackpos_config(i2c_periph,I2C_ACKPOS_CURRENT);
+
+ return 0;
+}
+
+static int gd32_i2c_write(rt_uint32_t i2c_periph, uint16_t slave_address, uint8_t* p_buffer, uint16_t data_byte)
+{
+ /* wait until I2C bus is idle */
+ while(i2c_flag_get(i2c_periph, I2C_FLAG_I2CBSY));
+
+ /* send a start condition to I2C bus */
+ i2c_start_on_bus(i2c_periph);
+
+ /* wait until SBSEND bit is set */
+ while(!i2c_flag_get(i2c_periph, I2C_FLAG_SBSEND));
+
+ /* send slave address to I2C bus */
+ i2c_master_addressing(i2c_periph, slave_address<<1, I2C_TRANSMITTER);
+
+ /* wait until ADDSEND bit is set */
+ while(!i2c_flag_get(i2c_periph, I2C_FLAG_ADDSEND));
+
+ /* clear the ADDSEND bit */
+ i2c_flag_clear(i2c_periph,I2C_FLAG_ADDSEND);
+
+ /* wait until the transmit data buffer is empty */
+ while(SET != i2c_flag_get( i2c_periph , I2C_FLAG_TBE));
+
+ /* while there is data to be read */
+ while(data_byte)
+ {
+ i2c_data_transmit(i2c_periph, *p_buffer);
+
+ /* point to the next byte to be written */
+ p_buffer++;
+
+ /* decrement the write bytes counter */
+ data_byte --;
+
+ /* wait until BTC bit is set */
+ while(!i2c_flag_get(i2c_periph, I2C_FLAG_BTC));
+ }
+
+ /* send a stop condition to I2C bus */
+ i2c_stop_on_bus(i2c_periph);
+
+ /* wait until the stop condition is finished */
+ while(I2C_CTL0(i2c_periph)&0x0200);
+
+ return 0;
+}
+
+static rt_size_t gd32_i2c_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg msgs[], rt_uint32_t num)
+{
+ struct rt_i2c_msg *msg;
+ rt_uint32_t i;
+ rt_err_t ret = RT_ERROR;
+
+ struct gd32_i2c_bus *gd32_i2c = (struct gd32_i2c_bus *)bus;
+
+ for (i = 0; i < num; i++)
+ {
+ msg = &msgs[i];
+
+ if (msg->flags & RT_I2C_ADDR_10BIT)
+ {
+ i2c_mode_addr_config(gd32_i2c->i2c_periph,I2C_I2CMODE_ENABLE,I2C_ADDFORMAT_10BITS,0);
+ }
+ else
+ {
+ i2c_mode_addr_config(gd32_i2c->i2c_periph,I2C_I2CMODE_ENABLE,I2C_ADDFORMAT_7BITS,0);
+ }
+ if (msg->flags & RT_I2C_RD)
+ {
+ if (gd32_i2c_read(gd32_i2c->i2c_periph, msg->addr, msg->buf, msg->len) != 0)
+ {
+ i2c_dbg("i2c bus write failed,i2c bus stop!\n");
+ goto out;
+ }
+ }
+ else
+ {
+ if (gd32_i2c_write(gd32_i2c->i2c_periph, msg->addr, msg->buf, msg->len) != 0)
+ {
+ i2c_dbg("i2c bus write failed,i2c bus stop!\n");
+ goto out;
+ }
+ }
+ }
+
+ ret = i;
+
+out:
+ i2c_dbg("send stop condition\n");
+
+ return ret;
+}
+
+static const struct rt_i2c_bus_device_ops i2c_ops =
+{
+ gd32_i2c_xfer,
+ RT_NULL,
+ RT_NULL
+};
+
+#endif /* RT_USING_I2C_BITOPS */
+
+int rt_hw_i2c_init(void)
+{
+#ifdef RT_USING_I2C_BITOPS
+ {
+ static struct rt_i2c_bus_device i2c_device;
+ static const struct gd32_i2c_bit_data _i2c_bdata =
+ {
+ /* SCL */
+ { I2C_SCL_CLK, I2C_SCL_PORT, I2C_SCL_PIN},
+ /* SDA */
+ { I2C_SDA_CLK, I2C_SDA_PORT, I2C_SDA_PIN},
+ };
+
+ static const struct rt_i2c_bit_ops _i2c_bit_ops =
+ {
+ (void*)&_i2c_bdata,
+ gpio_set_sda,
+ gpio_set_scl,
+ gpio_get_sda,
+ gpio_get_scl,
+ gpio_udelay,
+ 1,
+ 100
+ };
+
+ drv_i2c_gpio_init(&_i2c_bdata);
+
+ i2c_device.priv = (void *)&_i2c_bit_ops;
+ rt_i2c_bit_add_bus(&i2c_device, I2C_BUS_NAME);
+ }
+
+#else /* register hardware I2C */
+
+#ifdef RT_USING_I2C0
+#define I2C0_SPEED 100000
+
+ static struct gd32_i2c_bus gd32_i2c0;
+ /* enable GPIOB clock */
+ rcu_periph_clock_enable(RCU_GPIOB);
+
+ /* connect PB6 to I2C0_SCL, PB7 to I2C0_SDA */
+ gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_6 | GPIO_PIN_7);
+ gpio_output_options_set(GPIOB, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, GPIO_PIN_6 | GPIO_PIN_7);
+
+ /* enable I2C clock */
+ rcu_periph_clock_enable(RCU_I2C0);
+ /* configure I2C clock */
+ i2c_clock_config(I2C0,I2C0_SPEED,I2C_DTCY_2);
+
+ i2c_enable(I2C0);
+ /* enable acknowledge */
+ i2c_ack_config(I2C0,I2C_ACK_ENABLE);
+
+ rt_memset((void *)&gd32_i2c0, 0, sizeof(struct gd32_i2c_bus));
+ gd32_i2c0.parent.ops = &i2c_ops;
+ gd32_i2c0.i2c_periph = I2C0;
+ rt_i2c_bus_device_register(&gd32_i2c0.parent, "i2c0");
+#endif
+
+#ifdef RT_USING_I2C1
+#define I2C1_SPEED 100000
+
+ static struct gd32_i2c_bus gd32_i2c1;
+ /* enable GPIOB clock */
+ rcu_periph_clock_enable(RCU_GPIOB);
+
+ /* connect PB10 to I2C1_SCL, PB11 to I2C1_SDA */
+ gpio_init(GPIOB, GPIO_MODE_AF_OD, GPIO_OSPEED_50MHZ, GPIO_PIN_10 | GPIO_PIN_11);
+
+ /* enable I2C clock */
+ rcu_periph_clock_enable(RCU_I2C1);
+ /* configure I2C clock */
+ i2c_clock_config(I2C1,I2C1_SPEED,I2C_DTCY_2);
+
+ i2c_enable(I2C1);
+ /* enable acknowledge */
+ i2c_ack_config(I2C1,I2C_ACK_ENABLE);
+
+ rt_memset((void *)&gd32_i2c1, 0, sizeof(struct gd32_i2c_bus));
+ gd32_i2c1.parent.ops = &i2c_ops;
+ gd32_i2c1.i2c_periph = I2C1;
+ rt_i2c_bus_device_register(&gd32_i2c1.parent, "i2c1");
+#endif
+
+#endif /* RT_USING_I2C_BITOPS */
+
+ return 0;
+}
+INIT_DEVICE_EXPORT(rt_hw_i2c_init);
+
+#endif
+/* end of i2c driver */
diff --git a/bsp/gd32e230k-start/drivers/drv_i2c.h b/bsp/gd32e230k-start/drivers/drv_i2c.h
new file mode 100644
index 0000000000..2cc86ace3c
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_i2c.h
@@ -0,0 +1,29 @@
+/*
+ * File : drv_i2c.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-06-05 tanek first implementation.
+ */
+
+#ifndef __DRV_I2C__
+#define __DRV_I2C__
+
+
+#endif
diff --git a/bsp/gd32e230k-start/drivers/drv_spi.c b/bsp/gd32e230k-start/drivers/drv_spi.c
new file mode 100644
index 0000000000..7c749d75e0
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_spi.c
@@ -0,0 +1,290 @@
+/*
+ * File : drv_spi.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2017 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-06-05 tanek first implementation.
+ * 2018-04-19 misonyo Porting for gd32f30x
+ */
+
+#include "drv_spi.h"
+#include "gd32e230.h"
+#include <rtthread.h>
+
+#if defined(RT_USING_SPI) && defined(RT_USING_PIN)
+#include <rtdevice.h>
+
+#if !defined(RT_USING_SPI0) && !defined(RT_USING_SPI1) && \
+ !defined(RT_USING_SPI2)
+#error "Please define at least one SPIx"
+#endif
+
+/* #define DEBUG */
+#ifdef DEBUG
+#define DEBUG_PRINTF(...) rt_kprintf(__VA_ARGS__)
+#else
+#define DEBUG_PRINTF(...)
+#endif
+
+/* private rt-thread spi ops function */
+static rt_err_t configure(struct rt_spi_device* device, struct rt_spi_configuration* configuration);
+static rt_uint32_t xfer(struct rt_spi_device* device, struct rt_spi_message* message);
+
+static struct rt_spi_ops gd32_spi_ops =
+{
+ configure,
+ xfer
+};
+
+static rt_err_t configure(struct rt_spi_device* device, struct rt_spi_configuration* configuration)
+{
+ spi_parameter_struct spi_init_struct;
+
+ rt_uint32_t spi_periph = (rt_uint32_t)device->bus->parent.user_data;
+
+ RT_ASSERT(device != RT_NULL);
+ RT_ASSERT(configuration != RT_NULL);
+
+ if(configuration->data_width <= 8)
+ {
+ spi_init_struct.frame_size = SPI_FRAMESIZE_8BIT;
+ }
+ else if(configuration->data_width <= 16)
+ {
+ spi_init_struct.frame_size = SPI_FRAMESIZE_16BIT;
+ }
+ else
+ {
+ return RT_EIO;
+ }
+
+ {
+ rcu_clock_freq_enum spi_src;
+ rt_uint32_t spi_apb_clock;
+ rt_uint32_t max_hz;
+
+ max_hz = configuration->max_hz;
+
+ DEBUG_PRINTF("sys freq: %d\n", rcu_clock_freq_get(CK_SYS));
+ DEBUG_PRINTF("CK_APB2 freq: %d\n", rcu_clock_freq_get(CK_APB2));
+ DEBUG_PRINTF("max freq: %d\n", max_hz);
+
+ if (spi_periph == SPI1)
+ {
+ spi_src = CK_APB1;
+ }
+ else
+ {
+ spi_src = CK_APB2;
+ }
+ spi_apb_clock = rcu_clock_freq_get(spi_src);
+
+ if(max_hz >= spi_apb_clock/2)
+ {
+ spi_init_struct.prescale = SPI_PSC_2;
+ }
+ else if (max_hz >= spi_apb_clock/4)
+ {
+ spi_init_struct.prescale = SPI_PSC_4;
+ }
+ else if (max_hz >= spi_apb_clock/8)
+ {
+ spi_init_struct.prescale = SPI_PSC_8;
+ }
+ else if (max_hz >= spi_apb_clock/16)
+ {
+ spi_init_struct.prescale = SPI_PSC_16;
+ }
+ else if (max_hz >= spi_apb_clock/32)
+ {
+ spi_init_struct.prescale = SPI_PSC_32;
+ }
+ else if (max_hz >= spi_apb_clock/64)
+ {
+ spi_init_struct.prescale = SPI_PSC_64;
+ }
+ else if (max_hz >= spi_apb_clock/128)
+ {
+ spi_init_struct.prescale = SPI_PSC_128;
+ }
+ else
+ {
+ /* min prescaler 256 */
+ spi_init_struct.prescale = SPI_PSC_256;
+ }
+ } /* baudrate */
+
+ switch(configuration->mode & RT_SPI_MODE_3)
+ {
+ case RT_SPI_MODE_0:
+ spi_init_struct.clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
+ break;
+ case RT_SPI_MODE_1:
+ spi_init_struct.clock_polarity_phase = SPI_CK_PL_LOW_PH_2EDGE;
+ break;
+ case RT_SPI_MODE_2:
+ spi_init_struct.clock_polarity_phase = SPI_CK_PL_HIGH_PH_1EDGE;
+ break;
+ case RT_SPI_MODE_3:
+ spi_init_struct.clock_polarity_phase = SPI_CK_PL_HIGH_PH_2EDGE;
+ break;
+ }
+
+ /* MSB or LSB */
+ if(configuration->mode & RT_SPI_MSB)
+ {
+ spi_init_struct.endian = SPI_ENDIAN_MSB;
+ }
+ else
+ {
+ spi_init_struct.endian = SPI_ENDIAN_LSB;
+ }
+
+ spi_init_struct.trans_mode = SPI_TRANSMODE_FULLDUPLEX;
+ spi_init_struct.device_mode = SPI_MASTER;
+ spi_init_struct.nss = SPI_NSS_SOFT;
+
+ spi_init(spi_periph, &spi_init_struct);
+
+ spi_crc_off(spi_periph);
+
+ spi_enable(spi_periph);
+
+ return RT_EOK;
+};
+
+static rt_uint32_t xfer(struct rt_spi_device* device, struct rt_spi_message* message)
+{
+ rt_base_t gd32_cs_pin = (rt_base_t)device->parent.user_data;
+ rt_uint32_t spi_periph = (rt_uint32_t)device->bus->parent.user_data;
+ struct rt_spi_configuration * config = &device->config;
+
+ RT_ASSERT(device != NULL);
+ RT_ASSERT(message != NULL);
+
+ /* take CS */
+ if(message->cs_take)
+ {
+ rt_pin_write(gd32_cs_pin, PIN_LOW);
+ DEBUG_PRINTF("spi take cs\n");
+ }
+
+ {
+ if(config->data_width <= 8)
+ {
+ const rt_uint8_t * send_ptr = message->send_buf;
+ rt_uint8_t * recv_ptr = message->recv_buf;
+ rt_uint32_t size = message->length;
+
+ DEBUG_PRINTF("spi poll transfer start: %d\n", size);
+
+ while(size--)
+ {
+ rt_uint8_t data = 0xFF;
+
+ if(send_ptr != RT_NULL)
+ {
+ data = *send_ptr++;
+ }
+
+ // Todo: replace register read/write by gd32f3 lib
+ //Wait until the transmit buffer is empty
+ while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_TBE));
+ // Send the byte
+ spi_i2s_data_transmit(spi_periph, data);
+
+ //Wait until a data is received
+ while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_RBNE));
+ // Get the received data
+ data = spi_i2s_data_receive(spi_periph);
+
+ if(recv_ptr != RT_NULL)
+ {
+ *recv_ptr++ = data;
+ }
+ }
+ DEBUG_PRINTF("spi poll transfer finsh\n");
+ }
+ else if(config->data_width <= 16)
+ {
+ const rt_uint16_t * send_ptr = message->send_buf;
+ rt_uint16_t * recv_ptr = message->recv_buf;
+ rt_uint32_t size = message->length;
+
+ while(size--)
+ {
+ rt_uint16_t data = 0xFF;
+
+ if(send_ptr != RT_NULL)
+ {
+ data = *send_ptr++;
+ }
+
+ //Wait until the transmit buffer is empty
+ while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_TBE));
+ // Send the byte
+ spi_i2s_data_transmit(spi_periph, data);
+
+ //Wait until a data is received
+ while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_RBNE));
+ // Get the received data
+ data = spi_i2s_data_receive(spi_periph);
+
+ if(recv_ptr != RT_NULL)
+ {
+ *recv_ptr++ = data;
+ }
+ }
+ }
+ }
+
+ /* release CS */
+ if(message->cs_release)
+ {
+ rt_pin_write(gd32_cs_pin, PIN_HIGH);
+ DEBUG_PRINTF("spi release cs\n");
+ }
+
+ return message->length;
+};
+
+int gd32_hw_spi_init(void)
+{
+ int result = 0;
+#ifdef RT_USING_SPI0
+ static struct rt_spi_bus spi_bus0;
+ spi_bus0.parent.user_data = (void *)SPI0;
+
+ result = rt_spi_bus_register(&spi_bus0, "spi0", &gd32_spi_ops);
+
+ rcu_periph_clock_enable(RCU_GPIOA);
+ rcu_periph_clock_enable(RCU_SPI0);
+ /* SPI0_SCK(PA5), SPI0_MISO(PA6) and SPI0_MOSI(PA7) GPIO pin configuration */
+ gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_5 | GPIO_PIN_7);
+ gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_5 | GPIO_PIN_7);
+ gpio_mode_set(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_NONE, GPIO_PIN_5 | GPIO_PIN_7);
+#endif
+#ifdef RT_USING_SPI1
+ static struct rt_spi_bus spi_bus1;
+ spi_bus1.parent.user_data = (void *)SPI1;
+
+ result = rt_spi_bus_register(&spi_bus1, "spi1", &gd32_spi_ops);
+
+ rcu_periph_clock_enable(RCU_SPI1);
+ rcu_periph_clock_enable(RCU_GPIOB);
+
+ /* SPI1_SCK(PB13), SPI1_MISO(PB14) and SPI1_MOSI(PB15) GPIO pin configuration */
+ gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_13 | GPIO_PIN_15);
+ gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_13 | GPIO_PIN_15);
+ gpio_mode_set(GPIOB, GPIO_MODE_INPUT, GPIO_PUPD_NONE, GPIO_PIN_14);
+#endif
+ return result;
+}
+INIT_BOARD_EXPORT(gd32_hw_spi_init);
+#endif
diff --git a/bsp/gd32e230k-start/drivers/drv_spi.h b/bsp/gd32e230k-start/drivers/drv_spi.h
new file mode 100644
index 0000000000..69b07b70af
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_spi.h
@@ -0,0 +1,19 @@
+/*
+ * File : gd32f30x_spi.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2012-01-01 aozima first implementation.
+ */
+
+#ifndef gd32F30X_SPI_H_INCLUDED
+#define gd32F30X_SPI_H_INCLUDED
+
+
+#endif // gd32F30X_SPI_H_INCLUDED
diff --git a/bsp/gd32e230k-start/drivers/drv_usart.c b/bsp/gd32e230k-start/drivers/drv_usart.c
new file mode 100644
index 0000000000..c34ca232cb
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_usart.c
@@ -0,0 +1,381 @@
+/*
+ * File : drv_usart.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2009-01-05 Bernard the first version
+ * 2018-04-19 misonyo Porting for gd32f30x
+ */
+
+#include <rthw.h>
+#include <drv_usart.h>
+#include <rtthread.h>
+#include "gd32e230.h"
+
+#ifdef RT_USING_SERIAL
+
+#define UART_ENABLE_IRQ(n) NVIC_EnableIRQ((n))
+#define UART_DISABLE_IRQ(n) NVIC_DisableIRQ((n))
+
+#if !defined(RT_USING_USART0) && !defined(RT_USING_USART1) && \
+ !defined(RT_USING_USART2) && !defined(RT_USING_UART3) && \
+ !defined(RT_USING_UART4)
+#error "Please define at least one UARTx"
+
+#endif
+
+#include <rtdevice.h>
+
+/* GD32 uart driver */
+// Todo: compress uart info
+struct gd32_uart
+{
+ uint32_t uart_periph;
+ IRQn_Type irqn;
+ rcu_periph_enum per_clk;
+ rcu_periph_enum tx_gpio_clk;
+ rcu_periph_enum rx_gpio_clk;
+ uint32_t tx_port;
+ uint16_t tx_pin;
+ uint32_t rx_port;
+ uint16_t rx_pin;
+
+ struct rt_serial_device * serial;
+ char *device_name;
+};
+
+static void uart_isr(struct rt_serial_device *serial);
+
+#if defined(RT_USING_USART0)
+struct rt_serial_device serial0;
+
+void USART0_IRQHandler(void)
+{
+ /* enter interrupt */
+ rt_interrupt_enter();
+
+ uart_isr(&serial0);
+
+ /* leave interrupt */
+ rt_interrupt_leave();
+}
+
+#endif /* RT_USING_USART0 */
+
+#if defined(RT_USING_USART1)
+struct rt_serial_device serial1;
+
+void USART1_IRQHandler(void)
+{
+ /* enter interrupt */
+ rt_interrupt_enter();
+
+ uart_isr(&serial1);
+
+ /* leave interrupt */
+ rt_interrupt_leave();
+}
+
+#endif /* RT_USING_UART1 */
+
+#if defined(RT_USING_USART2)
+struct rt_serial_device serial2;
+
+void USART2_IRQHandler(void)
+{
+ /* enter interrupt */
+ rt_interrupt_enter();
+
+ uart_isr(&serial2);
+
+ /* leave interrupt */
+ rt_interrupt_leave();
+}
+
+#endif /* RT_USING_UART2 */
+
+#if defined(RT_USING_UART3)
+struct rt_serial_device serial3;
+
+void UART3_IRQHandler(void)
+{
+ /* enter interrupt */
+ rt_interrupt_enter();
+
+ uart_isr(&serial3);
+
+ /* leave interrupt */
+ rt_interrupt_leave();
+}
+
+#endif /* RT_USING_UART3 */
+
+#if defined(RT_USING_UART4)
+struct rt_serial_device serial4;
+
+void UART4_IRQHandler(void)
+{
+ /* enter interrupt */
+ rt_interrupt_enter();
+
+ uart_isr(&serial4);
+
+ /* leave interrupt */
+ rt_interrupt_leave();
+}
+#endif /* RT_USING_UART4 */
+
+static const struct gd32_uart uarts[] = {
+ #ifdef RT_USING_USART0
+ {
+ USART0, // uart peripheral index
+ USART0_IRQn, // uart iqrn
+ RCU_USART0, RCU_GPIOA, RCU_GPIOA, // periph clock, tx gpio clock, rt gpio clock
+ GPIOA, GPIO_PIN_9, // tx port, tx pin
+ GPIOA, GPIO_PIN_10, // rx port, rx pin
+ &serial0,
+ "uart0",
+ },
+ #endif
+
+ #ifdef RT_USING_USART1
+ {
+ USART1, // uart peripheral index
+ USART1_IRQn, // uart iqrn
+ RCU_USART1, RCU_GPIOA, RCU_GPIOA, // periph clock, tx gpio clock, rt gpio clock
+ GPIOA, GPIO_PIN_2, // tx port, tx pin
+ GPIOA, GPIO_PIN_3, // rx port, rx pin
+ &serial1,
+ "uart1",
+ },
+ #endif
+
+ #ifdef RT_USING_USART2
+ {
+ USART2, // uart peripheral index
+ USART2_IRQn, // uart iqrn
+ RCU_USART2, RCU_GPIOB, RCU_GPIOB, // periph clock, tx gpio clock, rt gpio clock
+ GPIOB, GPIO_PIN_10, // tx port, tx alternate, tx pin
+ GPIOB, GPIO_PIN_11, // rx port, rx alternate, rx pin
+ &serial2,
+ "uart2",
+ },
+ #endif
+
+ #ifdef RT_USING_UART3
+ {
+ UART3, // uart peripheral index
+ UART3_IRQn, // uart iqrn
+ RCU_UART3, RCU_GPIOC, RCU_GPIOC, // periph clock, tx gpio clock, rt gpio clock
+ GPIOC, GPIO_PIN_10, // tx port, tx alternate, tx pin
+ GPIOC, GPIO_PIN_11, // rx port, rx alternate, rx pin
+ &serial3,
+ "uart3",
+ },
+ #endif
+
+ #ifdef RT_USING_UART4
+ {
+ UART4, // uart peripheral index
+ UART4_IRQn, // uart iqrn
+ RCU_UART4, RCU_GPIOC, RCU_GPIOD, // periph clock, tx gpio clock, rt gpio clock
+ GPIOC, GPIO_PIN_12, // tx port, tx alternate, tx pin
+ GPIOD, GPIO_PIN_2, // rx port, rx alternate, rx pin
+ &serial4,
+ "uart4",
+ },
+ #endif
+};
+
+
+/**
+* @brief UART MSP Initialization
+* This function configures the hardware resources used in this example:
+* - Peripheral's clock enable
+* - Peripheral's GPIO Configuration
+* - NVIC configuration for UART interrupt request enable
+* @param uart: UART handle pointer
+* @retval None
+*/
+void gd32_uart_gpio_init(struct gd32_uart *uart)
+{
+ /* enable USART clock */
+ rcu_periph_clock_enable(uart->tx_gpio_clk);
+ rcu_periph_clock_enable(uart->rx_gpio_clk);
+ rcu_periph_clock_enable(uart->per_clk);
+
+ /* connect port to USARTx_Tx */
+ gpio_mode_set(uart->tx_port, GPIO_MODE_AF, GPIO_PUPD_NONE, uart->tx_pin);
+ gpio_output_options_set(uart->tx_port, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, uart->tx_pin);
+
+ /* connect port to USARTx_Rx */
+ gpio_mode_set(uart->rx_port, GPIO_MODE_INPUT, GPIO_PUPD_NONE, uart->rx_pin);
+
+ NVIC_SetPriority(uart->irqn, 0);
+ NVIC_EnableIRQ(uart->irqn);
+}
+
+static rt_err_t gd32_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
+{
+ struct gd32_uart *uart;
+
+ RT_ASSERT(serial != RT_NULL);
+ RT_ASSERT(cfg != RT_NULL);
+
+ uart = (struct gd32_uart *)serial->parent.user_data;
+
+ gd32_uart_gpio_init(uart);
+
+ usart_baudrate_set(uart->uart_periph, cfg->baud_rate);
+
+ switch (cfg->data_bits)
+ {
+ case DATA_BITS_9:
+ usart_word_length_set(uart->uart_periph, USART_WL_9BIT);
+ break;
+
+ default:
+ usart_word_length_set(uart->uart_periph, USART_WL_8BIT);
+ break;
+ }
+
+ switch (cfg->stop_bits)
+ {
+ case STOP_BITS_2:
+ usart_stop_bit_set(uart->uart_periph, USART_STB_2BIT);
+ break;
+ default:
+ usart_stop_bit_set(uart->uart_periph, USART_STB_1BIT);
+ break;
+ }
+
+ switch (cfg->parity)
+ {
+ case PARITY_ODD:
+ usart_parity_config(uart->uart_periph, USART_PM_ODD);
+ break;
+ case PARITY_EVEN:
+ usart_parity_config(uart->uart_periph, USART_PM_EVEN);
+ break;
+ default:
+ usart_parity_config(uart->uart_periph, USART_PM_NONE);
+ break;
+ }
+
+ usart_receive_config(uart->uart_periph, USART_RECEIVE_ENABLE);
+ usart_transmit_config(uart->uart_periph, USART_TRANSMIT_ENABLE);
+ usart_enable(uart->uart_periph);
+
+ return RT_EOK;
+}
+
+static rt_err_t gd32_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+ struct gd32_uart *uart;
+
+ RT_ASSERT(serial != RT_NULL);
+ uart = (struct gd32_uart *)serial->parent.user_data;
+
+ switch (cmd)
+ {
+ case RT_DEVICE_CTRL_CLR_INT:
+ /* disable rx irq */
+ NVIC_DisableIRQ(uart->irqn);
+ /* disable interrupt */
+ usart_interrupt_disable(uart->uart_periph, USART_INT_RBNE);
+
+ break;
+ case RT_DEVICE_CTRL_SET_INT:
+ /* enable rx irq */
+ NVIC_EnableIRQ(uart->irqn);
+ /* enable interrupt */
+ usart_interrupt_enable(uart->uart_periph, USART_INT_RBNE);
+ break;
+ }
+
+ return RT_EOK;
+}
+
+static int gd32_putc(struct rt_serial_device *serial, char ch)
+{
+ struct gd32_uart *uart;
+
+ RT_ASSERT(serial != RT_NULL);
+ uart = (struct gd32_uart *)serial->parent.user_data;
+
+ usart_data_transmit(uart->uart_periph, ch);
+ while((usart_flag_get(uart->uart_periph, USART_FLAG_TC) == RESET));
+
+ return 1;
+}
+
+static int gd32_getc(struct rt_serial_device *serial)
+{
+ int ch;
+ struct gd32_uart *uart;
+
+ RT_ASSERT(serial != RT_NULL);
+ uart = (struct gd32_uart *)serial->parent.user_data;
+
+ ch = -1;
+ if (usart_flag_get(uart->uart_periph, USART_FLAG_RBNE) != RESET)
+ ch = usart_data_receive(uart->uart_periph);
+ return ch;
+}
+
+/**
+ * Uart common interrupt process. This need add to uart ISR.
+ *
+ * @param serial serial device
+ */
+static void uart_isr(struct rt_serial_device *serial)
+{
+ struct gd32_uart *uart = (struct gd32_uart *) serial->parent.user_data;
+
+ RT_ASSERT(uart != RT_NULL);
+
+ /* UART in mode Receiver */
+ if ((usart_interrupt_flag_get(uart->uart_periph, USART_INT_FLAG_RBNE) != RESET) &&
+ (usart_flag_get(uart->uart_periph, USART_FLAG_RBNE) != RESET))
+ {
+ rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
+ /* Clear RXNE interrupt flag */
+ usart_flag_clear(uart->uart_periph, USART_FLAG_RBNE);
+ }
+}
+
+static const struct rt_uart_ops gd32_uart_ops =
+{
+ gd32_configure,
+ gd32_control,
+ gd32_putc,
+ gd32_getc
+};
+
+int gd32_hw_usart_init(void)
+{
+ struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+ int i;
+
+ for (i = 0; i < sizeof(uarts) / sizeof(uarts[0]); i++)
+ {
+ uarts[i].serial->ops = &gd32_uart_ops;
+ uarts[i].serial->config = config;
+
+ /* register UART device */
+ rt_hw_serial_register(uarts[i].serial,
+ uarts[i].device_name,
+ RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+ (void *)&uarts[i]);
+ }
+
+ return 0;
+}
+INIT_BOARD_EXPORT(gd32_hw_usart_init);
+#endif
diff --git a/bsp/gd32e230k-start/drivers/drv_usart.h b/bsp/gd32e230k-start/drivers/drv_usart.h
new file mode 100644
index 0000000000..2158016272
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/drv_usart.h
@@ -0,0 +1,19 @@
+/*
+ * File : drv_usart.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2009-01-05 Bernard the first version
+ */
+
+#ifndef __USART_H__
+#define __USART_H__
+
+
+#endif
diff --git a/bsp/gd32e230k-start/drivers/gd32e230_libopt.h b/bsp/gd32e230k-start/drivers/gd32e230_libopt.h
new file mode 100644
index 0000000000..61010d794f
--- /dev/null
+++ b/bsp/gd32e230k-start/drivers/gd32e230_libopt.h
@@ -0,0 +1,60 @@
+/*!
+ \file gd32e230_libopt.h
+ \brief library optional for gd32e230
+
+ \version 2018-06-19, V1.0.0, firmware for GD32E230
+*/
+
+/*
+ Copyright (c) 2018, GigaDevice Semiconductor Inc.
+
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
+*/
+
+#ifndef GD32E230_LIBOPT_H
+#define GD32E230_LIBOPT_H
+
+#include "gd32e230_adc.h"
+#include "gd32e230_crc.h"
+#include "gd32e230_dbg.h"
+#include "gd32e230_dma.h"
+#include "gd32e230_exti.h"
+#include "gd32e230_fmc.h"
+#include "gd32e230_gpio.h"
+#include "gd32e230_syscfg.h"
+#include "gd32e230_i2c.h"
+#include "gd32e230_fwdgt.h"
+#include "gd32e230_pmu.h"
+#include "gd32e230_rcu.h"
+#include "gd32e230_rtc.h"
+#include "gd32e230_spi.h"
+#include "gd32e230_timer.h"
+#include "gd32e230_usart.h"
+#include "gd32e230_wwdgt.h"
+#include "gd32e230_misc.h"
+#include "gd32e230_cmp.h"
+
+#endif /* GD32E230_LIBOPT_H */
diff --git a/bsp/gd32e230k-start/gd32_rom.icf b/bsp/gd32e230k-start/gd32_rom.icf
new file mode 100644
index 0000000000..d6665c3649
--- /dev/null
+++ b/bsp/gd32e230k-start/gd32_rom.icf
@@ -0,0 +1,40 @@
+/*###ICF### Section handled by ICF editor, don't touch! ****/
+/*-Editor annotation file-*/
+/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
+/*-Specials-*/
+define symbol __ICFEDIT_intvec_start__ = 0x08000000;
+/*-Memory Regions-*/
+define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
+define symbol __ICFEDIT_region_ROM_end__ = 0x0807ffff;
+define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
+define symbol __ICFEDIT_region_RAM_end__ = 0x2000FFFF;
+/*-Sizes-*/
+define symbol __ICFEDIT_size_cstack__ = 0x2000;
+define symbol __ICFEDIT_size_heap__ = 0x2000;
+/**** End of ICF editor section. ###ICF###*/
+
+export symbol __ICFEDIT_region_RAM_end__;
+
+define symbol __region_RAM1_start__ = 0x10000000;
+define symbol __region_RAM1_end__ = 0x1000FFFF;
+
+define memory mem with size = 4G;
+define region ROM_region = mem:[from __ICFEDIT_region_ROM_start__ to __ICFEDIT_region_ROM_end__];
+define region RAM_region = mem:[from __ICFEDIT_region_RAM_start__ to __ICFEDIT_region_RAM_end__];
+define region RAM1_region = mem:[from __region_RAM1_start__ to __region_RAM1_end__];
+
+define block CSTACK with alignment = 8, size = __ICFEDIT_size_cstack__ { };
+define block HEAP with alignment = 8, size = __ICFEDIT_size_heap__ { };
+
+initialize by copy { readwrite };
+do not initialize { section .noinit };
+
+keep { section FSymTab };
+keep { section VSymTab };
+keep { section .rti_fn* };
+place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };
+
+place in ROM_region { readonly };
+place in RAM_region { readwrite,
+ block CSTACK, block HEAP };
+place in RAM1_region { section .sram }; \ No newline at end of file
diff --git a/bsp/gd32e230k-start/gd32_rom.ld b/bsp/gd32e230k-start/gd32_rom.ld
new file mode 100644
index 0000000000..a017d88f4d
--- /dev/null
+++ b/bsp/gd32e230k-start/gd32_rom.ld
@@ -0,0 +1,142 @@
+/*
+ * linker script for GD32F30x with GNU ld
+ * bernard.xiong 2009-10-14
+ */
+
+/* Program Entry, set to mark it as "used" and avoid gc */
+MEMORY
+{
+ CODE (rx) : ORIGIN = 0x08000000, LENGTH = 512k /* 512KB flash */
+ DATA (rw) : ORIGIN = 0x20000000, LENGTH = 64k /* 64KB sram */
+}
+ENTRY(Reset_Handler)
+_system_stack_size = 0x200;
+
+SECTIONS
+{
+ .text :
+ {
+ . = ALIGN(4);
+ _stext = .;
+ KEEP(*(.isr_vector)) /* Startup code */
+ . = ALIGN(4);
+ *(.text) /* remaining code */
+ *(.text.*) /* remaining code */
+ *(.rodata) /* read-only data (constants) */
+ *(.rodata*)
+ *(.glue_7)
+ *(.glue_7t)
+ *(.gnu.linkonce.t*)
+
+ /* section information for finsh shell */
+ . = ALIGN(4);
+ __fsymtab_start = .;
+ KEEP(*(FSymTab))
+ __fsymtab_end = .;
+ . = ALIGN(4);
+ __vsymtab_start = .;
+ KEEP(*(VSymTab))
+ __vsymtab_end = .;
+ . = ALIGN(4);
+
+ /* section information for initial. */
+ . = ALIGN(4);
+ __rt_init_start = .;
+ KEEP(*(SORT(.rti_fn*)))
+ __rt_init_end = .;
+ . = ALIGN(4);
+
+ . = ALIGN(4);
+ _etext = .;
+ } > CODE = 0
+
+ /* .ARM.exidx is sorted, so has to go in its own output section. */
+ __exidx_start = .;
+ .ARM.exidx :
+ {
+ *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+
+ /* This is used by the startup in order to initialize the .data secion */
+ _sidata = .;
+ } > CODE
+ __exidx_end = .;
+
+ /* .data section which is used for initialized data */
+
+ .data : AT (_sidata)
+ {
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .data secion */
+ _sdata = . ;
+
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d*)
+
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .data secion */
+ _edata = . ;
+ } >DATA
+
+ .stack :
+ {
+ . = . + _system_stack_size;
+ . = ALIGN(4);
+ _estack = .;
+ } >DATA
+
+ __bss_start = .;
+ .bss :
+ {
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .bss secion */
+ _sbss = .;
+
+ *(.bss)
+ *(.bss.*)
+ *(COMMON)
+
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .bss secion */
+ _ebss = . ;
+
+ *(.bss.init)
+ } > DATA
+ __bss_end = .;
+
+ _end = .;
+
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+ /* DWARF debug sections.
+ * Symbols in the DWARF debugging sections are relative to the beginning
+ * of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ /* DWARF 1.1 and DWARF 2 */
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ /* DWARF 2 */
+ .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_frame 0 : { *(.debug_frame) }
+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
+}
diff --git a/bsp/gd32e230k-start/gd32_rom.sct b/bsp/gd32e230k-start/gd32_rom.sct
new file mode 100644
index 0000000000..abc5462a3f
--- /dev/null
+++ b/bsp/gd32e230k-start/gd32_rom.sct
@@ -0,0 +1,15 @@
+; *************************************************************
+; *** Scatter-Loading Description File generated by uVision ***
+; *************************************************************
+
+LR_IROM1 0x08000000 0x000080000 { ; load region size_region
+ ER_IROM1 0x08000000 0x000080000 { ; load address = execution address
+ *.o (RESET, +First)
+ *(InRoot$$Sections)
+ .ANY (+RO)
+ }
+ RW_IRAM1 0x20000000 0x00010000 { ; RW data
+ .ANY (+RW +ZI)
+ }
+}
+
diff --git a/bsp/gd32e230k-start/project.uvoptx b/bsp/gd32e230k-start/project.uvoptx
new file mode 100644
index 0000000000..c97d8a37d1
--- /dev/null
+++ b/bsp/gd32e230k-start/project.uvoptx
@@ -0,0 +1,1301 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_optx.xsd">
+
+ <SchemaVersion>1.0</SchemaVersion>
+
+ <Header>### uVision Project, (C) Keil Software</Header>
+
+ <Extensions>
+ <cExt>*.c</cExt>
+ <aExt>*.s*; *.src; *.a*</aExt>
+ <oExt>*.obj; *.o</oExt>
+ <lExt>*.lib</lExt>
+ <tExt>*.txt; *.h; *.inc</tExt>
+ <pExt>*.plm</pExt>
+ <CppX>*.cpp</CppX>
+ <nMigrate>0</nMigrate>
+ </Extensions>
+
+ <DaveTm>
+ <dwLowDateTime>0</dwLowDateTime>
+ <dwHighDateTime>0</dwHighDateTime>
+ </DaveTm>
+
+ <Target>
+ <TargetName>rt-thread_gd32f30x</TargetName>
+ <ToolsetNumber>0x4</ToolsetNumber>
+ <ToolsetName>ARM-ADS</ToolsetName>
+ <TargetOption>
+ <CLKADS>12000000</CLKADS>
+ <OPTTT>
+ <gFlags>1</gFlags>
+ <BeepAtEnd>1</BeepAtEnd>
+ <RunSim>0</RunSim>
+ <RunTarget>1</RunTarget>
+ <RunAbUc>0</RunAbUc>
+ </OPTTT>
+ <OPTHX>
+ <HexSelection>1</HexSelection>
+ <FlashByte>65535</FlashByte>
+ <HexRangeLowAddress>0</HexRangeLowAddress>
+ <HexRangeHighAddress>0</HexRangeHighAddress>
+ <HexOffset>0</HexOffset>
+ </OPTHX>
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+ <FileNumber>84</FileNumber>
+ <FileType>1</FileType>
+ <tvExp>0</tvExp>
+ <tvExpOptDlg>0</tvExpOptDlg>
+ <bDave2>0</bDave2>
+ <PathWithFileName>..\..\components\libc\compilers\armlibc\mem_std.c</PathWithFileName>
+ <FilenameWithoutPath>mem_std.c</FilenameWithoutPath>
+ <RteFlg>0</RteFlg>
+ <bShared>0</bShared>
+ </File>
+ <File>
+ <GroupNumber>9</GroupNumber>
+ <FileNumber>85</FileNumber>
+ <FileType>1</FileType>
+ <tvExp>0</tvExp>
+ <tvExpOptDlg>0</tvExpOptDlg>
+ <bDave2>0</bDave2>
+ <PathWithFileName>..\..\components\libc\compilers\armlibc\stdio.c</PathWithFileName>
+ <FilenameWithoutPath>stdio.c</FilenameWithoutPath>
+ <RteFlg>0</RteFlg>
+ <bShared>0</bShared>
+ </File>
+ <File>
+ <GroupNumber>9</GroupNumber>
+ <FileNumber>86</FileNumber>
+ <FileType>1</FileType>
+ <tvExp>0</tvExp>
+ <tvExpOptDlg>0</tvExpOptDlg>
+ <bDave2>0</bDave2>
+ <PathWithFileName>..\..\components\libc\compilers\armlibc\stubs.c</PathWithFileName>
+ <FilenameWithoutPath>stubs.c</FilenameWithoutPath>
+ <RteFlg>0</RteFlg>
+ <bShared>0</bShared>
+ </File>
+ <File>
+ <GroupNumber>9</GroupNumber>
+ <FileNumber>87</FileNumber>
+ <FileType>1</FileType>
+ <tvExp>0</tvExp>
+ <tvExpOptDlg>0</tvExpOptDlg>
+ <bDave2>0</bDave2>
+ <PathWithFileName>..\..\components\libc\compilers\armlibc\time.c</PathWithFileName>
+ <FilenameWithoutPath>time.c</FilenameWithoutPath>
+ <RteFlg>0</RteFlg>
+ <bShared>0</bShared>
+ </File>
+ </Group>
+
+ <Group>
+ <GroupName>::CMSIS</GroupName>
+ <tvExp>0</tvExp>
+ <tvExpOptDlg>0</tvExpOptDlg>
+ <cbSel>0</cbSel>
+ <RteFlg>1</RteFlg>
+ </Group>
+
+</ProjectOpt>
diff --git a/bsp/gd32e230k-start/project.uvprojx b/bsp/gd32e230k-start/project.uvprojx
new file mode 100644
index 0000000000..66d282d567
--- /dev/null
+++ b/bsp/gd32e230k-start/project.uvprojx
@@ -0,0 +1,952 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_projx.xsd">
+
+ <SchemaVersion>2.1</SchemaVersion>
+
+ <Header>### uVision Project, (C) Keil Software</Header>
+
+ <Targets>
+ <Target>
+ <TargetName>rt-thread_gd32f30x</TargetName>
+ <ToolsetNumber>0x4</ToolsetNumber>
+ <ToolsetName>ARM-ADS</ToolsetName>
+ <pArmCC>6120000::V6.12::.\ARMCLANG</pArmCC>
+ <pCCUsed>6120000::V6.12::.\ARMCLANG</pCCUsed>
+ <uAC6>1</uAC6>
+ <TargetOption>
+ <TargetCommonOption>
+ <Device>GD32E230K8</Device>
+ <Vendor>GigaDevice</Vendor>
+ <PackID>GigaDevice.GD32E230_DFP.1.0.0</PackID>
+ <PackURL>http://gd32mcu.21ic.com/data/documents/yingyongruanjian</PackURL>
+ <Cpu>IRAM(0x20000000,0x0002000) IROM(0x08000000,0x0010000) CPUTYPE("Cortex-M23") CLOCK(12000000) ELITTLE</Cpu>
+ <FlashUtilSpec></FlashUtilSpec>
+ <StartupFile></StartupFile>
+ <FlashDriverDll>UL2V8M(-S0 -C0 -P0 -FD20000000 -FC1000 -FN1 -FF0GD32E230 -FS08000000 -FL010000 -FP0($$Device:GD32E230K8$Flash\GD32E230.FLM))</FlashDriverDll>
+ <DeviceId>0</DeviceId>
+ <RegisterFile>$$Device:GD32E230K8$Device\Include\gd32e230.h</RegisterFile>
+ <MemoryEnv></MemoryEnv>
+ <Cmp></Cmp>
+ <Asm></Asm>
+ <Linker></Linker>
+ <OHString></OHString>
+ <InfinionOptionDll></InfinionOptionDll>
+ <SLE66CMisc></SLE66CMisc>
+ <SLE66AMisc></SLE66AMisc>
+ <SLE66LinkerMisc></SLE66LinkerMisc>
+ <SFDFile>$$Device:GD32E230K8$SVD\GD32E230.svd</SFDFile>
+ <bCustSvd>0</bCustSvd>
+ <UseEnv>0</UseEnv>
+ <BinPath></BinPath>
+ <IncludePath></IncludePath>
+ <LibPath></LibPath>
+ <RegisterFilePath></RegisterFilePath>
+ <DBRegisterFilePath></DBRegisterFilePath>
+ <TargetStatus>
+ <Error>0</Error>
+ <ExitCodeStop>0</ExitCodeStop>
+ <ButtonStop>0</ButtonStop>
+ <NotGenerated>0</NotGenerated>
+ <InvalidFlash>1</InvalidFlash>
+ </TargetStatus>
+ <OutputDirectory>.\build\</OutputDirectory>
+ <OutputName>rtthread-gd32f30x</OutputName>
+ <CreateExecutable>1</CreateExecutable>
+ <CreateLib>0</CreateLib>
+ <CreateHexFile>0</CreateHexFile>
+ <DebugInformation>1</DebugInformation>
+ <BrowseInformation>1</BrowseInformation>
+ <ListingPath>.\build\</ListingPath>
+ <HexFormatSelection>1</HexFormatSelection>
+ <Merge32K>0</Merge32K>
+ <CreateBatchFile>0</CreateBatchFile>
+ <BeforeCompile>
+ <RunUserProg1>0</RunUserProg1>
+ <RunUserProg2>0</RunUserProg2>
+ <UserProg1Name></UserProg1Name>
+ <UserProg2Name></UserProg2Name>
+ <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+ <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+ <nStopU1X>0</nStopU1X>
+ <nStopU2X>0</nStopU2X>
+ </BeforeCompile>
+ <BeforeMake>
+ <RunUserProg1>0</RunUserProg1>
+ <RunUserProg2>0</RunUserProg2>
+ <UserProg1Name></UserProg1Name>
+ <UserProg2Name></UserProg2Name>
+ <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+ <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+ <nStopB1X>0</nStopB1X>
+ <nStopB2X>0</nStopB2X>
+ </BeforeMake>
+ <AfterMake>
+ <RunUserProg1>1</RunUserProg1>
+ <RunUserProg2>0</RunUserProg2>
+ <UserProg1Name>fromelf --bin !L --output rtthread.bin</UserProg1Name>
+ <UserProg2Name></UserProg2Name>
+ <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+ <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+ <nStopA1X>0</nStopA1X>
+ <nStopA2X>0</nStopA2X>
+ </AfterMake>
+ <SelectedForBatchBuild>0</SelectedForBatchBuild>
+ <SVCSIdString></SVCSIdString>
+ </TargetCommonOption>
+ <CommonProperty>
+ <UseCPPCompiler>0</UseCPPCompiler>
+ <RVCTCodeConst>0</RVCTCodeConst>
+ <RVCTZI>0</RVCTZI>
+ <RVCTOtherData>0</RVCTOtherData>
+ <ModuleSelection>0</ModuleSelection>
+ <IncludeInBuild>1</IncludeInBuild>
+ <AlwaysBuild>0</AlwaysBuild>
+ <GenerateAssemblyFile>0</GenerateAssemblyFile>
+ <AssembleAssemblyFile>0</AssembleAssemblyFile>
+ <PublicsOnly>0</PublicsOnly>
+ <StopOnExitCode>3</StopOnExitCode>
+ <CustomArgument></CustomArgument>
+ <IncludeLibraryModules></IncludeLibraryModules>
+ <ComprImg>1</ComprImg>
+ </CommonProperty>
+ <DllOption>
+ <SimDllName></SimDllName>
+ <SimDllArguments></SimDllArguments>
+ <SimDlgDll></SimDlgDll>
+ <SimDlgDllArguments></SimDlgDllArguments>
+ <TargetDllName>SARMV8M.DLL</TargetDllName>
+ <TargetDllArguments> -MPU</TargetDllArguments>
+ <TargetDlgDll>TCM.DLL</TargetDlgDll>
+ <TargetDlgDllArguments>-pCM23</TargetDlgDllArguments>
+ </DllOption>
+ <DebugOption>
+ <OPTHX>
+ <HexSelection>1</HexSelection>
+ <HexRangeLowAddress>0</HexRangeLowAddress>
+ <HexRangeHighAddress>0</HexRangeHighAddress>
+ <HexOffset>0</HexOffset>
+ <Oh166RecLen>16</Oh166RecLen>
+ </OPTHX>
+ </DebugOption>
+ <Utilities>
+ <Flash1>
+ <UseTargetDll>1</UseTargetDll>
+ <UseExternalTool>0</UseExternalTool>
+ <RunIndependent>0</RunIndependent>
+ <UpdateFlashBeforeDebugging>1</UpdateFlashBeforeDebugging>
+ <Capability>1</Capability>
+ <DriverSelection>4096</DriverSelection>
+ </Flash1>
+ <bUseTDR>1</bUseTDR>
+ <Flash2>BIN\UL2V8M.DLL</Flash2>
+ <Flash3></Flash3>
+ <Flash4></Flash4>
+ <pFcarmOut></pFcarmOut>
+ <pFcarmGrp></pFcarmGrp>
+ <pFcArmRoot></pFcArmRoot>
+ <FcArmLst>0</FcArmLst>
+ </Utilities>
+ <TargetArmAds>
+ <ArmAdsMisc>
+ <GenerateListings>0</GenerateListings>
+ <asHll>1</asHll>
+ <asAsm>1</asAsm>
+ <asMacX>1</asMacX>
+ <asSyms>1</asSyms>
+ <asFals>1</asFals>
+ <asDbgD>1</asDbgD>
+ <asForm>1</asForm>
+ <ldLst>0</ldLst>
+ <ldmm>1</ldmm>
+ <ldXref>1</ldXref>
+ <BigEnd>0</BigEnd>
+ <AdsALst>1</AdsALst>
+ <AdsACrf>1</AdsACrf>
+ <AdsANop>0</AdsANop>
+ <AdsANot>0</AdsANot>
+ <AdsLLst>1</AdsLLst>
+ <AdsLmap>1</AdsLmap>
+ <AdsLcgr>1</AdsLcgr>
+ <AdsLsym>1</AdsLsym>
+ <AdsLszi>1</AdsLszi>
+ <AdsLtoi>1</AdsLtoi>
+ <AdsLsun>1</AdsLsun>
+ <AdsLven>1</AdsLven>
+ <AdsLsxf>1</AdsLsxf>
+ <RvctClst>0</RvctClst>
+ <GenPPlst>0</GenPPlst>
+ <AdsCpuType>"Cortex-M23"</AdsCpuType>
+ <RvctDeviceName></RvctDeviceName>
+ <mOS>0</mOS>
+ <uocRom>0</uocRom>
+ <uocRam>0</uocRam>
+ <hadIROM>1</hadIROM>
+ <hadIRAM>1</hadIRAM>
+ <hadXRAM>0</hadXRAM>
+ <uocXRam>0</uocXRam>
+ <RvdsVP>0</RvdsVP>
+ <RvdsMve>0</RvdsMve>
+ <hadIRAM2>0</hadIRAM2>
+ <hadIROM2>0</hadIROM2>
+ <StupSel>8</StupSel>
+ <useUlib>0</useUlib>
+ <EndSel>0</EndSel>
+ <uLtcg>0</uLtcg>
+ <nSecure>0</nSecure>
+ <RoSelD>3</RoSelD>
+ <RwSelD>3</RwSelD>
+ <CodeSel>0</CodeSel>
+ <OptFeed>0</OptFeed>
+ <NoZi1>0</NoZi1>
+ <NoZi2>0</NoZi2>
+ <NoZi3>0</NoZi3>
+ <NoZi4>0</NoZi4>
+ <NoZi5>0</NoZi5>
+ <Ro1Chk>0</Ro1Chk>
+ <Ro2Chk>0</Ro2Chk>
+ <Ro3Chk>0</Ro3Chk>
+ <Ir1Chk>1</Ir1Chk>
+ <Ir2Chk>0</Ir2Chk>
+ <Ra1Chk>0</Ra1Chk>
+ <Ra2Chk>0</Ra2Chk>
+ <Ra3Chk>0</Ra3Chk>
+ <Im1Chk>1</Im1Chk>
+ <Im2Chk>0</Im2Chk>
+ <OnChipMemories>
+ <Ocm1>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm1>
+ <Ocm2>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm2>
+ <Ocm3>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm3>
+ <Ocm4>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm4>
+ <Ocm5>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm5>
+ <Ocm6>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm6>
+ <IRAM>
+ <Type>0</Type>
+ <StartAddress>0x20000000</StartAddress>
+ <Size>0x2000</Size>
+ </IRAM>
+ <IROM>
+ <Type>1</Type>
+ <StartAddress>0x8000000</StartAddress>
+ <Size>0x10000</Size>
+ </IROM>
+ <XRAM>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </XRAM>
+ <OCR_RVCT1>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT1>
+ <OCR_RVCT2>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT2>
+ <OCR_RVCT3>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT3>
+ <OCR_RVCT4>
+ <Type>1</Type>
+ <StartAddress>0x8000000</StartAddress>
+ <Size>0x10000</Size>
+ </OCR_RVCT4>
+ <OCR_RVCT5>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT5>
+ <OCR_RVCT6>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT6>
+ <OCR_RVCT7>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT7>
+ <OCR_RVCT8>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT8>
+ <OCR_RVCT9>
+ <Type>0</Type>
+ <StartAddress>0x20000000</StartAddress>
+ <Size>0x2000</Size>
+ </OCR_RVCT9>
+ <OCR_RVCT10>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT10>
+ </OnChipMemories>
+ <RvctStartVector></RvctStartVector>
+ </ArmAdsMisc>
+ <Cads>
+ <interw>1</interw>
+ <Optim>7</Optim>
+ <oTime>0</oTime>
+ <SplitLS>0</SplitLS>
+ <OneElfS>0</OneElfS>
+ <Strict>0</Strict>
+ <EnumInt>0</EnumInt>
+ <PlainCh>0</PlainCh>
+ <Ropi>0</Ropi>
+ <Rwpi>0</Rwpi>
+ <wLevel>3</wLevel>
+ <uThumb>0</uThumb>
+ <uSurpInc>0</uSurpInc>
+ <uC99>1</uC99>
+ <uGnu>0</uGnu>
+ <useXO>0</useXO>
+ <v6Lang>3</v6Lang>
+ <v6LangP>3</v6LangP>
+ <vShortEn>1</vShortEn>
+ <vShortWch>1</vShortWch>
+ <v6Lto>0</v6Lto>
+ <v6WtE>0</v6WtE>
+ <v6Rtti>0</v6Rtti>
+ <VariousControls>
+ <MiscControls></MiscControls>
+ <Define>GD32E230, RT_USING_ARM_LIBC</Define>
+ <Undefine></Undefine>
+ <IncludePath>applications;.;drivers;Libraries\CMSIS;..\..\include;..\..\libcpu\arm\common;..\..\components\dfs\include;..\..\components\dfs\filesystems\devfs;..\..\components\dfs\filesystems\elmfat;..\..\components\drivers\include;..\..\components\drivers\include;..\..\components\drivers\include;..\..\components\drivers\spi;..\..\components\drivers\include;..\..\components\drivers\spi\sfud\inc;..\..\components\drivers\include;..\..\components\finsh;..\..\components\libc\compilers\armlibc;.\Libraries\GD32E230_standard_peripheral\Include;.\Libraries\CMSIS\GD\GD32E230\Include;..\..\libcpu\arm\cortex-m23</IncludePath>
+ </VariousControls>
+ </Cads>
+ <Aads>
+ <interw>1</interw>
+ <Ropi>0</Ropi>
+ <Rwpi>0</Rwpi>
+ <thumb>0</thumb>
+ <SplitLS>0</SplitLS>
+ <SwStkChk>0</SwStkChk>
+ <NoWarn>0</NoWarn>
+ <uSurpInc>0</uSurpInc>
+ <useXO>0</useXO>
+ <uClangAs>0</uClangAs>
+ <VariousControls>
+ <MiscControls></MiscControls>
+ <Define></Define>
+ <Undefine></Undefine>
+ <IncludePath></IncludePath>
+ </VariousControls>
+ </Aads>
+ <LDads>
+ <umfTarg>1</umfTarg>
+ <Ropi>0</Ropi>
+ <Rwpi>0</Rwpi>
+ <noStLib>0</noStLib>
+ <RepFail>1</RepFail>
+ <useFile>0</useFile>
+ <TextAddressRange>0x08000000</TextAddressRange>
+ <DataAddressRange>0x20000000</DataAddressRange>
+ <pXoBase></pXoBase>
+ <ScatterFile></ScatterFile>
+ <IncludeLibs></IncludeLibs>
+ <IncludeLibsPath></IncludeLibsPath>
+ <Misc>--keep *.o(.rti_fn.*) --keep *.o(FSymTab) --keep *.o(VSymTab)</Misc>
+ <LinkerInputFile></LinkerInputFile>
+ <DisabledWarnings></DisabledWarnings>
+ </LDads>
+ </TargetArmAds>
+ </TargetOption>
+ <Groups>
+ <Group>
+ <GroupName>Applications</GroupName>
+ <Files>
+ <File>
+ <FileName>main.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>applications\main.c</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>Drivers</GroupName>
+ <Files>
+ <File>
+ <FileName>board.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>drivers\board.c</FilePath>
+ </File>
+ <File>
+ <FileName>drv_usart.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>drivers\drv_usart.c</FilePath>
+ </File>
+ <File>
+ <FileName>drv_spi.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>drivers\drv_spi.c</FilePath>
+ </File>
+ <File>
+ <FileName>drv_i2c.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>drivers\drv_i2c.c</FilePath>
+ </File>
+ <File>
+ <FileName>drv_gpio.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>drivers\drv_gpio.c</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>GD32_Lib</GroupName>
+ <Files>
+ <File>
+ <FileName>gd32e230_adc.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_adc.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_cmp.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_cmp.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_crc.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_crc.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_dbg.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_dbg.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_dma.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_dma.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_exti.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_exti.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_fmc.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_fmc.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_fwdgt.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_fwdgt.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_gpio.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_gpio.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_i2c.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_i2c.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_misc.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_misc.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_pmu.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_pmu.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_rcu.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_rcu.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_rtc.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_rtc.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_spi.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_spi.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_syscfg.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_syscfg.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_timer.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_timer.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_usart.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_usart.c</FilePath>
+ </File>
+ <File>
+ <FileName>gd32e230_wwdgt.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\GD32E230_standard_peripheral\Source\gd32e230_wwdgt.c</FilePath>
+ </File>
+ <File>
+ <FileName>system_gd32e230.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>.\Libraries\CMSIS\GD\GD32E230\Source\system_gd32e230.c</FilePath>
+ </File>
+ <File>
+ <FileName>startup_gd32e230.s</FileName>
+ <FileType>2</FileType>
+ <FilePath>.\Libraries\CMSIS\GD\GD32E230\Source\ARM\startup_gd32e230.s</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>Kernel</GroupName>
+ <Files>
+ <File>
+ <FileName>clock.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\clock.c</FilePath>
+ </File>
+ <File>
+ <FileName>components.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\components.c</FilePath>
+ </File>
+ <File>
+ <FileName>device.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\device.c</FilePath>
+ </File>
+ <File>
+ <FileName>idle.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\idle.c</FilePath>
+ </File>
+ <File>
+ <FileName>ipc.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\ipc.c</FilePath>
+ </File>
+ <File>
+ <FileName>irq.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\irq.c</FilePath>
+ </File>
+ <File>
+ <FileName>kservice.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\kservice.c</FilePath>
+ </File>
+ <File>
+ <FileName>mem.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\mem.c</FilePath>
+ </File>
+ <File>
+ <FileName>mempool.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\mempool.c</FilePath>
+ </File>
+ <File>
+ <FileName>object.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\object.c</FilePath>
+ </File>
+ <File>
+ <FileName>scheduler.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\scheduler.c</FilePath>
+ </File>
+ <File>
+ <FileName>signal.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\signal.c</FilePath>
+ </File>
+ <File>
+ <FileName>thread.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\thread.c</FilePath>
+ </File>
+ <File>
+ <FileName>timer.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\src\timer.c</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>CORTEX-M23</GroupName>
+ <Files>
+ <File>
+ <FileName>backtrace.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\libcpu\arm\common\backtrace.c</FilePath>
+ </File>
+ <File>
+ <FileName>div0.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\libcpu\arm\common\div0.c</FilePath>
+ </File>
+ <File>
+ <FileName>showmem.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\libcpu\arm\common\showmem.c</FilePath>
+ </File>
+ <File>
+ <FileName>cpuport.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\libcpu\arm\cortex-m23\cpuport.c</FilePath>
+ </File>
+ <File>
+ <FileName>context_rvds.S</FileName>
+ <FileType>2</FileType>
+ <FilePath>..\..\libcpu\arm\cortex-m23\context_rvds.S</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>Filesystem</GroupName>
+ <Files>
+ <File>
+ <FileName>dfs.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\dfs\src\dfs.c</FilePath>
+ </File>
+ <File>
+ <FileName>dfs_file.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\dfs\src\dfs_file.c</FilePath>
+ </File>
+ <File>
+ <FileName>dfs_fs.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\dfs\src\dfs_fs.c</FilePath>
+ </File>
+ <File>
+ <FileName>dfs_posix.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\dfs\src\dfs_posix.c</FilePath>
+ </File>
+ <File>
+ <FileName>devfs.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\dfs\filesystems\devfs\devfs.c</FilePath>
+ </File>
+ <File>
+ <FileName>dfs_elm.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\dfs\filesystems\elmfat\dfs_elm.c</FilePath>
+ </File>
+ <File>
+ <FileName>ff.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\dfs\filesystems\elmfat\ff.c</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>DeviceDrivers</GroupName>
+ <GroupOption>
+ <CommonProperty>
+ <UseCPPCompiler>0</UseCPPCompiler>
+ <RVCTCodeConst>0</RVCTCodeConst>
+ <RVCTZI>0</RVCTZI>
+ <RVCTOtherData>0</RVCTOtherData>
+ <ModuleSelection>0</ModuleSelection>
+ <IncludeInBuild>1</IncludeInBuild>
+ <AlwaysBuild>0</AlwaysBuild>
+ <GenerateAssemblyFile>0</GenerateAssemblyFile>
+ <AssembleAssemblyFile>0</AssembleAssemblyFile>
+ <PublicsOnly>0</PublicsOnly>
+ <StopOnExitCode>3</StopOnExitCode>
+ <CustomArgument></CustomArgument>
+ <IncludeLibraryModules></IncludeLibraryModules>
+ <ComprImg>0</ComprImg>
+ </CommonProperty>
+ <GroupArmAds>
+ <Cads>
+ <interw>2</interw>
+ <Optim>0</Optim>
+ <oTime>2</oTime>
+ <SplitLS>2</SplitLS>
+ <OneElfS>2</OneElfS>
+ <Strict>2</Strict>
+ <EnumInt>2</EnumInt>
+ <PlainCh>2</PlainCh>
+ <Ropi>2</Ropi>
+ <Rwpi>2</Rwpi>
+ <wLevel>0</wLevel>
+ <uThumb>2</uThumb>
+ <uSurpInc>2</uSurpInc>
+ <uC99>2</uC99>
+ <uGnu>2</uGnu>
+ <useXO>2</useXO>
+ <v6Lang>0</v6Lang>
+ <v6LangP>0</v6LangP>
+ <vShortEn>2</vShortEn>
+ <vShortWch>2</vShortWch>
+ <v6Lto>2</v6Lto>
+ <v6WtE>2</v6WtE>
+ <v6Rtti>2</v6Rtti>
+ <VariousControls>
+ <MiscControls></MiscControls>
+ <Define></Define>
+ <Undefine></Undefine>
+ <IncludePath></IncludePath>
+ </VariousControls>
+ </Cads>
+ <Aads>
+ <interw>2</interw>
+ <Ropi>2</Ropi>
+ <Rwpi>2</Rwpi>
+ <thumb>2</thumb>
+ <SplitLS>2</SplitLS>
+ <SwStkChk>2</SwStkChk>
+ <NoWarn>2</NoWarn>
+ <uSurpInc>2</uSurpInc>
+ <useXO>2</useXO>
+ <uClangAs>2</uClangAs>
+ <VariousControls>
+ <MiscControls></MiscControls>
+ <Define></Define>
+ <Undefine></Undefine>
+ <IncludePath></IncludePath>
+ </VariousControls>
+ </Aads>
+ </GroupArmAds>
+ </GroupOption>
+ <Files>
+ <File>
+ <FileName>i2c_core.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\i2c\i2c_core.c</FilePath>
+ </File>
+ <File>
+ <FileName>i2c_dev.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\i2c\i2c_dev.c</FilePath>
+ </File>
+ <File>
+ <FileName>pin.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\misc\pin.c</FilePath>
+ </File>
+ <File>
+ <FileName>serial.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\serial\serial.c</FilePath>
+ </File>
+ <File>
+ <FileName>spi_core.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\spi\spi_core.c</FilePath>
+ </File>
+ <File>
+ <FileName>spi_dev.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\spi\spi_dev.c</FilePath>
+ </File>
+ <File>
+ <FileName>completion.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\src\completion.c</FilePath>
+ </File>
+ <File>
+ <FileName>dataqueue.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\src\dataqueue.c</FilePath>
+ </File>
+ <File>
+ <FileName>pipe.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\src\pipe.c</FilePath>
+ </File>
+ <File>
+ <FileName>ringbuffer.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\src\ringbuffer.c</FilePath>
+ </File>
+ <File>
+ <FileName>waitqueue.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\src\waitqueue.c</FilePath>
+ </File>
+ <File>
+ <FileName>workqueue.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\drivers\src\workqueue.c</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>finsh</GroupName>
+ <Files>
+ <File>
+ <FileName>shell.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\shell.c</FilePath>
+ </File>
+ <File>
+ <FileName>symbol.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\symbol.c</FilePath>
+ </File>
+ <File>
+ <FileName>cmd.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\cmd.c</FilePath>
+ </File>
+ <File>
+ <FileName>msh.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\msh.c</FilePath>
+ </File>
+ <File>
+ <FileName>msh_cmd.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\msh_cmd.c</FilePath>
+ </File>
+ <File>
+ <FileName>msh_file.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\msh_file.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_compiler.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_compiler.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_error.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_error.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_heap.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_heap.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_init.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_init.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_node.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_node.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_ops.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_ops.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_parser.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_parser.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_var.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_var.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_vm.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_vm.c</FilePath>
+ </File>
+ <File>
+ <FileName>finsh_token.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\finsh\finsh_token.c</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>libc</GroupName>
+ <Files>
+ <File>
+ <FileName>libc.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\libc\compilers\armlibc\libc.c</FilePath>
+ </File>
+ <File>
+ <FileName>libc_syms.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\libc\compilers\armlibc\libc_syms.c</FilePath>
+ </File>
+ <File>
+ <FileName>mem_std.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\libc\compilers\armlibc\mem_std.c</FilePath>
+ </File>
+ <File>
+ <FileName>stdio.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\libc\compilers\armlibc\stdio.c</FilePath>
+ </File>
+ <File>
+ <FileName>stubs.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\libc\compilers\armlibc\stubs.c</FilePath>
+ </File>
+ <File>
+ <FileName>time.c</FileName>
+ <FileType>1</FileType>
+ <FilePath>..\..\components\libc\compilers\armlibc\time.c</FilePath>
+ </File>
+ </Files>
+ </Group>
+ <Group>
+ <GroupName>::CMSIS</GroupName>
+ </Group>
+ </Groups>
+ </Target>
+ </Targets>
+
+ <RTE>
+ <apis/>
+ <components>
+ <component Cclass="CMSIS" Cgroup="CORE" Cvendor="ARM" Cversion="5.2.0" condition="ARMv6_7_8-M Device">
+ <package name="CMSIS" schemaVersion="1.3" url="http://www.keil.com/pack/" vendor="ARM" version="5.5.1"/>
+ <targetInfos>
+ <targetInfo name="rt-thread_gd32f30x"/>
+ </targetInfos>
+ </component>
+ </components>
+ <files/>
+ </RTE>
+
+</Project>
diff --git a/bsp/gd32e230k-start/rtconfig.h b/bsp/gd32e230k-start/rtconfig.h
new file mode 100644
index 0000000000..77e9056395
--- /dev/null
+++ b/bsp/gd32e230k-start/rtconfig.h
@@ -0,0 +1,158 @@
+#ifndef RT_CONFIG_H__
+#define RT_CONFIG_H__
+
+/* Automatically generated file; DO NOT EDIT. */
+/* RT-Thread Configuration */
+
+/* RT-Thread Kernel */
+
+#define RT_NAME_MAX 8
+#define RT_ALIGN_SIZE 4
+#define RT_THREAD_PRIORITY_32
+#define RT_THREAD_PRIORITY_MAX 32
+#define RT_TICK_PER_SECOND 100
+#define RT_DEBUG
+#define RT_DEBUG_COLOR
+#define RT_USING_OVERFLOW_CHECK
+#define RT_DEBUG_INIT 0
+#define RT_DEBUG_THREAD 0
+#define RT_USING_HOOK
+#define IDLE_THREAD_STACK_SIZE 256
+
+/* Inter-Thread communication */
+
+#define RT_USING_SEMAPHORE
+#define RT_USING_MUTEX
+#define RT_USING_EVENT
+#define RT_USING_MAILBOX
+#define RT_USING_MESSAGEQUEUE
+
+/* Memory Management */
+
+#define RT_USING_MEMPOOL
+#define RT_USING_SMALL_MEM
+#define RT_USING_HEAP
+
+/* Kernel Device Object */
+
+#define RT_USING_DEVICE
+#define RT_USING_CONSOLE
+#define RT_CONSOLEBUF_SIZE 128
+#define RT_CONSOLE_DEVICE_NAME "uart0"
+
+/* RT-Thread Components */
+
+#define RT_USING_COMPONENTS_INIT
+#define RT_USING_USER_MAIN
+#define RT_MAIN_THREAD_STACK_SIZE 2048
+
+/* C++ features */
+
+
+/* Command shell */
+
+#define RT_USING_FINSH
+#define FINSH_THREAD_NAME "tshell"
+#define FINSH_USING_HISTORY
+#define FINSH_HISTORY_LINES 5
+#define FINSH_USING_SYMTAB
+#define FINSH_USING_DESCRIPTION
+#define FINSH_THREAD_PRIORITY 20
+#define FINSH_THREAD_STACK_SIZE 4096
+#define FINSH_CMD_SIZE 80
+#define FINSH_USING_MSH
+#define FINSH_USING_MSH_DEFAULT
+
+/* Device virtual file system */
+
+#define RT_USING_DFS
+#define DFS_USING_WORKDIR
+#define DFS_FILESYSTEMS_MAX 2
+#define DFS_FILESYSTEM_TYPES_MAX 2
+#define DFS_FD_MAX 4
+#define RT_USING_DFS_ELMFAT
+
+/* elm-chan's FatFs, Generic FAT Filesystem Module */
+
+#define RT_DFS_ELM_CODE_PAGE 437
+#define RT_DFS_ELM_WORD_ACCESS
+#define RT_DFS_ELM_USE_LFN_0
+#define RT_DFS_ELM_USE_LFN 0
+#define RT_DFS_ELM_MAX_LFN 255
+#define RT_DFS_ELM_DRIVES 2
+#define RT_DFS_ELM_MAX_SECTOR_SIZE 4096
+#define RT_DFS_ELM_REENTRANT
+#define RT_USING_DFS_DEVFS
+
+/* Device Drivers */
+
+#define RT_USING_DEVICE_IPC
+#define RT_USING_SERIAL
+#define RT_SERIAL_USING_DMA
+#define RT_USING_I2C
+#define RT_USING_PIN
+#define RT_USING_SPI
+
+/* Using USB */
+
+
+/* POSIX layer and C standard library */
+
+#define RT_USING_LIBC
+
+/* Network stack */
+
+/* light weight TCP/IP stack */
+
+
+/* Modbus master and slave stack */
+
+
+/* VBUS(Virtual Software BUS) */
+
+
+/* Utilities */
+
+
+/* RT-Thread online packages */
+
+/* system packages */
+
+/* RT-Thread GUI Engine */
+
+
+/* IoT - internet of things */
+
+
+/* Wi-Fi */
+
+/* Marvell WiFi */
+
+
+/* Wiced WiFi */
+
+
+/* security packages */
+
+
+/* language packages */
+
+
+/* multimedia packages */
+
+
+/* tools packages */
+
+
+/* miscellaneous packages */
+
+
+/* example package: hello */
+
+#define RT_USING_USART0
+#define RT_USING_USART1
+#define RT_USING_SPI0
+#define RT_USING_SPI1
+#define RT_USING_I2C0
+
+#endif
diff --git a/bsp/gd32e230k-start/rtconfig.py b/bsp/gd32e230k-start/rtconfig.py
new file mode 100644
index 0000000000..c631bc3e44
--- /dev/null
+++ b/bsp/gd32e230k-start/rtconfig.py
@@ -0,0 +1,126 @@
+import os
+
+# toolchains options
+ARCH='arm'
+CPU='cortex-m4'
+CROSS_TOOL='keil'
+
+if os.getenv('RTT_CC'):
+ CROSS_TOOL = os.getenv('RTT_CC')
+
+# cross_tool provides the cross compiler
+# EXEC_PATH is the compiler execute path, for example, CodeSourcery, Keil MDK, IAR
+if CROSS_TOOL == 'gcc':
+ PLATFORM = 'gcc'
+ EXEC_PATH = r'D:/toolchain/gnu_tools_arm_embedded/5.4_2016q3/bin'
+elif CROSS_TOOL == 'keil':
+ PLATFORM = 'armcc'
+ EXEC_PATH = r'C:/Keil_v5'
+elif CROSS_TOOL == 'iar':
+ PLATFORM = 'iar'
+ EXEC_PATH = r'C:/Program Files (x86)/IAR Systems/Embedded Workbench 8.0'
+
+if os.getenv('RTT_EXEC_PATH'):
+ EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD = 'debug'
+
+if PLATFORM == 'gcc':
+ # tool-chains
+ PREFIX = 'arm-none-eabi-'
+ CC = PREFIX + 'gcc'
+ AS = PREFIX + 'gcc'
+ AR = PREFIX + 'ar'
+ LINK = PREFIX + 'gcc'
+ TARGET_EXT = 'elf'
+ SIZE = PREFIX + 'size'
+ OBJDUMP = PREFIX + 'objdump'
+ OBJCPY = PREFIX + 'objcopy'
+
+ DEVICE = ' -mcpu=cortex-m4 -mthumb -ffunction-sections -fdata-sections'
+ CFLAGS = DEVICE + ' -Dgcc' # -D' + PART_TYPE
+ AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -Wa,-mimplicit-it=thumb '
+ LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-gd32.map,-cref,-u,Reset_Handler -T gd32_rom.ld'
+
+ CPATH = ''
+ LPATH = ''
+
+ if BUILD == 'debug':
+ CFLAGS += ' -O0 -gdwarf-2 -g'
+ AFLAGS += ' -gdwarf-2'
+ else:
+ CFLAGS += ' -O2'
+
+ POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
+
+elif PLATFORM == 'armcc':
+ # toolchains
+ CC = 'armcc'
+ AS = 'armasm'
+ AR = 'armar'
+ LINK = 'armlink'
+ TARGET_EXT = 'axf'
+
+ DEVICE = ' --cpu Cortex-M4'
+ CFLAGS = DEVICE + ' --apcs=interwork'
+ AFLAGS = DEVICE
+ LFLAGS = DEVICE + ' --info sizes --info totals --info unused --info veneers --list rtthread-gd32.map --scatter gd32_rom.sct'
+
+ LFLAGS += ' --keep *.o(.rti_fn.*) --keep *.o(FSymTab) --keep *.o(VSymTab)'
+
+ EXEC_PATH += '/ARM/ARMCC/bin'
+ print(EXEC_PATH)
+
+ CFLAGS += ' --c99'
+
+ if BUILD == 'debug':
+ CFLAGS += ' -g -O0'
+ AFLAGS += ' -g'
+ else:
+ CFLAGS += ' -O2'
+
+ POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
+
+elif PLATFORM == 'iar':
+ # toolchains
+ CC = 'iccarm'
+ AS = 'iasmarm'
+ AR = 'iarchive'
+ LINK = 'ilinkarm'
+ TARGET_EXT = 'out'
+
+ DEVICE = ' -D USE_STDPERIPH_DRIVER' + ' -D GD32F30X_HD'
+
+ CFLAGS = DEVICE
+ CFLAGS += ' --diag_suppress Pa050'
+ CFLAGS += ' --no_cse'
+ CFLAGS += ' --no_unroll'
+ CFLAGS += ' --no_inline'
+ CFLAGS += ' --no_code_motion'
+ CFLAGS += ' --no_tbaa'
+ CFLAGS += ' --no_clustering'
+ CFLAGS += ' --no_scheduling'
+ CFLAGS += ' --debug'
+ CFLAGS += ' --endian=little'
+ CFLAGS += ' --cpu=Cortex-M4'
+ CFLAGS += ' -e'
+ CFLAGS += ' --fpu=None'
+ CFLAGS += ' --dlib_config "' + EXEC_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
+ CFLAGS += ' -Ol'
+ CFLAGS += ' --use_c++_inline'
+
+ AFLAGS = ''
+ AFLAGS += ' -s+'
+ AFLAGS += ' -w+'
+ AFLAGS += ' -r'
+ AFLAGS += ' --cpu Cortex-M4'
+ AFLAGS += ' --fpu None'
+
+ LFLAGS = ' --config gd32_rom.icf'
+ LFLAGS += ' --redirect _Printf=_PrintfTiny'
+ LFLAGS += ' --redirect _Scanf=_ScanfSmall'
+ LFLAGS += ' --entry __iar_program_start'
+
+ EXEC_PATH += '/arm/bin/'
+ POST_ACTION = ''
+
diff --git a/bsp/gd32e230k-start/template.uvoptx b/bsp/gd32e230k-start/template.uvoptx
new file mode 100644
index 0000000000..8fc841b0e1
--- /dev/null
+++ b/bsp/gd32e230k-start/template.uvoptx
@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_optx.xsd">
+
+ <SchemaVersion>1.0</SchemaVersion>
+
+ <Header>### uVision Project, (C) Keil Software</Header>
+
+ <Extensions>
+ <cExt>*.c</cExt>
+ <aExt>*.s*; *.src; *.a*</aExt>
+ <oExt>*.obj; *.o</oExt>
+ <lExt>*.lib</lExt>
+ <tExt>*.txt; *.h; *.inc</tExt>
+ <pExt>*.plm</pExt>
+ <CppX>*.cpp</CppX>
+ <nMigrate>0</nMigrate>
+ </Extensions>
+
+ <DaveTm>
+ <dwLowDateTime>0</dwLowDateTime>
+ <dwHighDateTime>0</dwHighDateTime>
+ </DaveTm>
+
+ <Target>
+ <TargetName>rt-thread_gd32f30x</TargetName>
+ <ToolsetNumber>0x4</ToolsetNumber>
+ <ToolsetName>ARM-ADS</ToolsetName>
+ <TargetOption>
+ <CLKADS>16000000</CLKADS>
+ <OPTTT>
+ <gFlags>1</gFlags>
+ <BeepAtEnd>1</BeepAtEnd>
+ <RunSim>0</RunSim>
+ <RunTarget>1</RunTarget>
+ <RunAbUc>0</RunAbUc>
+ </OPTTT>
+ <OPTHX>
+ <HexSelection>1</HexSelection>
+ <FlashByte>65535</FlashByte>
+ <HexRangeLowAddress>0</HexRangeLowAddress>
+ <HexRangeHighAddress>0</HexRangeHighAddress>
+ <HexOffset>0</HexOffset>
+ </OPTHX>
+ <OPTLEX>
+ <PageWidth>79</PageWidth>
+ <PageLength>66</PageLength>
+ <TabStop>8</TabStop>
+ <ListingPath>.\build\</ListingPath>
+ </OPTLEX>
+ <ListingPage>
+ <CreateCListing>1</CreateCListing>
+ <CreateAListing>1</CreateAListing>
+ <CreateLListing>1</CreateLListing>
+ <CreateIListing>0</CreateIListing>
+ <AsmCond>1</AsmCond>
+ <AsmSymb>1</AsmSymb>
+ <AsmXref>0</AsmXref>
+ <CCond>1</CCond>
+ <CCode>0</CCode>
+ <CListInc>0</CListInc>
+ <CSymb>0</CSymb>
+ <LinkerCodeListing>0</LinkerCodeListing>
+ </ListingPage>
+ <OPTXL>
+ <LMap>1</LMap>
+ <LComments>1</LComments>
+ <LGenerateSymbols>1</LGenerateSymbols>
+ <LLibSym>1</LLibSym>
+ <LLines>1</LLines>
+ <LLocSym>1</LLocSym>
+ <LPubSym>1</LPubSym>
+ <LXref>0</LXref>
+ <LExpSel>0</LExpSel>
+ </OPTXL>
+ <OPTFL>
+ <tvExp>0</tvExp>
+ <tvExpOptDlg>0</tvExpOptDlg>
+ <IsCurrentTarget>1</IsCurrentTarget>
+ </OPTFL>
+ <CpuCode>255</CpuCode>
+ <DebugOpt>
+ <uSim>0</uSim>
+ <uTrg>1</uTrg>
+ <sLdApp>1</sLdApp>
+ <sGomain>1</sGomain>
+ <sRbreak>1</sRbreak>
+ <sRwatch>1</sRwatch>
+ <sRmem>1</sRmem>
+ <sRfunc>1</sRfunc>
+ <sRbox>1</sRbox>
+ <tLdApp>1</tLdApp>
+ <tGomain>1</tGomain>
+ <tRbreak>1</tRbreak>
+ <tRwatch>1</tRwatch>
+ <tRmem>1</tRmem>
+ <tRfunc>0</tRfunc>
+ <tRbox>1</tRbox>
+ <tRtrace>1</tRtrace>
+ <sRSysVw>1</sRSysVw>
+ <tRSysVw>1</tRSysVw>
+ <sRunDeb>0</sRunDeb>
+ <sLrtime>0</sLrtime>
+ <bEvRecOn>1</bEvRecOn>
+ <bSchkAxf>0</bSchkAxf>
+ <bTchkAxf>0</bTchkAxf>
+ <nTsel>4</nTsel>
+ <sDll></sDll>
+ <sDllPa></sDllPa>
+ <sDlgDll></sDlgDll>
+ <sDlgPa></sDlgPa>
+ <sIfile></sIfile>
+ <tDll></tDll>
+ <tDllPa></tDllPa>
+ <tDlgDll></tDlgDll>
+ <tDlgPa></tDlgPa>
+ <tIfile></tIfile>
+ <pMon>Segger\JL2CM3.dll</pMon>
+ </DebugOpt>
+ <TargetDriverDllRegistry>
+ <SetRegEntry>
+ <Number>0</Number>
+ <Key>JL2CM3</Key>
+ <Name>-U30000299 -O78 -S2 -ZTIFSpeedSel5000 -A0 -C0 -JU1 -JI127.0.0.1 -JP0 -RST0 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(4) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -TB1 -TFE0 -FO15 -FD20000000 -FC1000 -FN1 -FF0GD32F30x_HD -FS08000000 -FL080000</Name>
+ </SetRegEntry>
+ <SetRegEntry>
+ <Number>0</Number>
+ <Key>UL2CM3</Key>
+ <Name>UL2CM3(-S0 -C0 -P0 -FD20000000 -FC1000 -FN1 -FF0GD32F30x_HD -FS08000000 -FL010000 -FP0($$Device:GD32F303ZE$Flash\GD32F30x_HD.FLM))</Name>
+ </SetRegEntry>
+ </TargetDriverDllRegistry>
+ <Breakpoint/>
+ <Tracepoint>
+ <THDelay>0</THDelay>
+ </Tracepoint>
+ <DebugFlag>
+ <trace>0</trace>
+ <periodic>0</periodic>
+ <aLwin>0</aLwin>
+ <aCover>0</aCover>
+ <aSer1>0</aSer1>
+ <aSer2>0</aSer2>
+ <aPa>0</aPa>
+ <viewmode>0</viewmode>
+ <vrSel>0</vrSel>
+ <aSym>0</aSym>
+ <aTbox>0</aTbox>
+ <AscS1>0</AscS1>
+ <AscS2>0</AscS2>
+ <AscS3>0</AscS3>
+ <aSer3>0</aSer3>
+ <eProf>0</eProf>
+ <aLa>0</aLa>
+ <aPa1>0</aPa1>
+ <AscS4>0</AscS4>
+ <aSer4>0</aSer4>
+ <StkLoc>0</StkLoc>
+ <TrcWin>0</TrcWin>
+ <newCpu>0</newCpu>
+ <uProt>0</uProt>
+ </DebugFlag>
+ <LintExecutable></LintExecutable>
+ <LintConfigFile></LintConfigFile>
+ <bLintAuto>0</bLintAuto>
+ <bAutoGenD>0</bAutoGenD>
+ <LntExFlags>0</LntExFlags>
+ <pMisraName></pMisraName>
+ <pszMrule></pszMrule>
+ <pSingCmds></pSingCmds>
+ <pMultCmds></pMultCmds>
+ <pMisraNamep></pMisraNamep>
+ <pszMrulep></pszMrulep>
+ <pSingCmdsp></pSingCmdsp>
+ <pMultCmdsp></pMultCmdsp>
+ </TargetOption>
+ </Target>
+
+ <Group>
+ <GroupName>::CMSIS</GroupName>
+ <tvExp>0</tvExp>
+ <tvExpOptDlg>0</tvExpOptDlg>
+ <cbSel>0</cbSel>
+ <RteFlg>1</RteFlg>
+ </Group>
+
+</ProjectOpt>
diff --git a/bsp/gd32e230k-start/template.uvprojx b/bsp/gd32e230k-start/template.uvprojx
new file mode 100644
index 0000000000..9b0a830d22
--- /dev/null
+++ b/bsp/gd32e230k-start/template.uvprojx
@@ -0,0 +1,400 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_projx.xsd">
+
+ <SchemaVersion>2.1</SchemaVersion>
+
+ <Header>### uVision Project, (C) Keil Software</Header>
+
+ <Targets>
+ <Target>
+ <TargetName>rt-thread_gd32f30x</TargetName>
+ <ToolsetNumber>0x4</ToolsetNumber>
+ <ToolsetName>ARM-ADS</ToolsetName>
+ <pCCUsed>5060750::V5.06 update 6 (build 750)::ARMCC</pCCUsed>
+ <uAC6>0</uAC6>
+ <TargetOption>
+ <TargetCommonOption>
+ <Device>GD32F303ZE</Device>
+ <Vendor>GigaDevice</Vendor>
+ <PackID>GigaDevice.GD32F30x_DFP.1.0.1</PackID>
+ <PackURL>http://gd32mcu.21ic.com/data/documents/yingyongruanjian</PackURL>
+ <Cpu>IRAM(0x20000000-0x2000FFFF)IROM(0x08000000-0x0807FFFF) CLOCK(16000000) CPUTYPE("Cortex-M4")</Cpu>
+ <FlashUtilSpec></FlashUtilSpec>
+ <StartupFile>"Startup\GD\GD32F30x\startup_gd32f30x_hd.s" ("GD32F30x Startup Code")</StartupFile>
+ <FlashDriverDll>UL2CM3(-O207 -S0 -C0 -FO7 -FD20000000 -FC800 -FN1 -FF0GD32F30x_HD -FS08000000 -FL080000)</FlashDriverDll>
+ <DeviceId>0</DeviceId>
+ <RegisterFile>gd32f30x.h</RegisterFile>
+ <MemoryEnv></MemoryEnv>
+ <Cmp></Cmp>
+ <Asm></Asm>
+ <Linker></Linker>
+ <OHString></OHString>
+ <InfinionOptionDll></InfinionOptionDll>
+ <SLE66CMisc></SLE66CMisc>
+ <SLE66AMisc></SLE66AMisc>
+ <SLE66LinkerMisc></SLE66LinkerMisc>
+ <SFDFile>SFD\GD\GD32F30x\GD32F30x_HD.SFR</SFDFile>
+ <bCustSvd>0</bCustSvd>
+ <UseEnv>0</UseEnv>
+ <BinPath></BinPath>
+ <IncludePath></IncludePath>
+ <LibPath></LibPath>
+ <RegisterFilePath>GD\GD32F30x\</RegisterFilePath>
+ <DBRegisterFilePath>GD\GD32F30x\</DBRegisterFilePath>
+ <TargetStatus>
+ <Error>0</Error>
+ <ExitCodeStop>0</ExitCodeStop>
+ <ButtonStop>0</ButtonStop>
+ <NotGenerated>0</NotGenerated>
+ <InvalidFlash>1</InvalidFlash>
+ </TargetStatus>
+ <OutputDirectory>.\build\</OutputDirectory>
+ <OutputName>rtthread-gd32f30x</OutputName>
+ <CreateExecutable>1</CreateExecutable>
+ <CreateLib>0</CreateLib>
+ <CreateHexFile>0</CreateHexFile>
+ <DebugInformation>1</DebugInformation>
+ <BrowseInformation>1</BrowseInformation>
+ <ListingPath>.\build\</ListingPath>
+ <HexFormatSelection>1</HexFormatSelection>
+ <Merge32K>0</Merge32K>
+ <CreateBatchFile>0</CreateBatchFile>
+ <BeforeCompile>
+ <RunUserProg1>0</RunUserProg1>
+ <RunUserProg2>0</RunUserProg2>
+ <UserProg1Name></UserProg1Name>
+ <UserProg2Name></UserProg2Name>
+ <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+ <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+ <nStopU1X>0</nStopU1X>
+ <nStopU2X>0</nStopU2X>
+ </BeforeCompile>
+ <BeforeMake>
+ <RunUserProg1>0</RunUserProg1>
+ <RunUserProg2>0</RunUserProg2>
+ <UserProg1Name></UserProg1Name>
+ <UserProg2Name></UserProg2Name>
+ <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+ <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+ <nStopB1X>0</nStopB1X>
+ <nStopB2X>0</nStopB2X>
+ </BeforeMake>
+ <AfterMake>
+ <RunUserProg1>1</RunUserProg1>
+ <RunUserProg2>0</RunUserProg2>
+ <UserProg1Name>fromelf --bin !L --output rtthread.bin</UserProg1Name>
+ <UserProg2Name></UserProg2Name>
+ <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
+ <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
+ <nStopA1X>0</nStopA1X>
+ <nStopA2X>0</nStopA2X>
+ </AfterMake>
+ <SelectedForBatchBuild>0</SelectedForBatchBuild>
+ <SVCSIdString></SVCSIdString>
+ </TargetCommonOption>
+ <CommonProperty>
+ <UseCPPCompiler>0</UseCPPCompiler>
+ <RVCTCodeConst>0</RVCTCodeConst>
+ <RVCTZI>0</RVCTZI>
+ <RVCTOtherData>0</RVCTOtherData>
+ <ModuleSelection>0</ModuleSelection>
+ <IncludeInBuild>1</IncludeInBuild>
+ <AlwaysBuild>0</AlwaysBuild>
+ <GenerateAssemblyFile>0</GenerateAssemblyFile>
+ <AssembleAssemblyFile>0</AssembleAssemblyFile>
+ <PublicsOnly>0</PublicsOnly>
+ <StopOnExitCode>3</StopOnExitCode>
+ <CustomArgument></CustomArgument>
+ <IncludeLibraryModules></IncludeLibraryModules>
+ <ComprImg>1</ComprImg>
+ </CommonProperty>
+ <DllOption>
+ <SimDllName>SARMCM3.DLL</SimDllName>
+ <SimDllArguments> -REMAP</SimDllArguments>
+ <SimDlgDll>DCM.DLL</SimDlgDll>
+ <SimDlgDllArguments>-pCM3</SimDlgDllArguments>
+ <TargetDllName>SARMCM3.DLL</TargetDllName>
+ <TargetDllArguments></TargetDllArguments>
+ <TargetDlgDll>TCM.DLL</TargetDlgDll>
+ <TargetDlgDllArguments>-pCM3</TargetDlgDllArguments>
+ </DllOption>
+ <DebugOption>
+ <OPTHX>
+ <HexSelection>1</HexSelection>
+ <HexRangeLowAddress>0</HexRangeLowAddress>
+ <HexRangeHighAddress>0</HexRangeHighAddress>
+ <HexOffset>0</HexOffset>
+ <Oh166RecLen>16</Oh166RecLen>
+ </OPTHX>
+ </DebugOption>
+ <Utilities>
+ <Flash1>
+ <UseTargetDll>1</UseTargetDll>
+ <UseExternalTool>0</UseExternalTool>
+ <RunIndependent>0</RunIndependent>
+ <UpdateFlashBeforeDebugging>1</UpdateFlashBeforeDebugging>
+ <Capability>1</Capability>
+ <DriverSelection>4096</DriverSelection>
+ </Flash1>
+ <bUseTDR>1</bUseTDR>
+ <Flash2>BIN\UL2CM3.DLL</Flash2>
+ <Flash3>"" ()</Flash3>
+ <Flash4></Flash4>
+ <pFcarmOut></pFcarmOut>
+ <pFcarmGrp></pFcarmGrp>
+ <pFcArmRoot></pFcArmRoot>
+ <FcArmLst>0</FcArmLst>
+ </Utilities>
+ <TargetArmAds>
+ <ArmAdsMisc>
+ <GenerateListings>0</GenerateListings>
+ <asHll>1</asHll>
+ <asAsm>1</asAsm>
+ <asMacX>1</asMacX>
+ <asSyms>1</asSyms>
+ <asFals>1</asFals>
+ <asDbgD>1</asDbgD>
+ <asForm>1</asForm>
+ <ldLst>0</ldLst>
+ <ldmm>1</ldmm>
+ <ldXref>1</ldXref>
+ <BigEnd>0</BigEnd>
+ <AdsALst>1</AdsALst>
+ <AdsACrf>1</AdsACrf>
+ <AdsANop>0</AdsANop>
+ <AdsANot>0</AdsANot>
+ <AdsLLst>1</AdsLLst>
+ <AdsLmap>1</AdsLmap>
+ <AdsLcgr>1</AdsLcgr>
+ <AdsLsym>1</AdsLsym>
+ <AdsLszi>1</AdsLszi>
+ <AdsLtoi>1</AdsLtoi>
+ <AdsLsun>1</AdsLsun>
+ <AdsLven>1</AdsLven>
+ <AdsLsxf>1</AdsLsxf>
+ <RvctClst>0</RvctClst>
+ <GenPPlst>0</GenPPlst>
+ <AdsCpuType>"Cortex-M4"</AdsCpuType>
+ <RvctDeviceName></RvctDeviceName>
+ <mOS>0</mOS>
+ <uocRom>0</uocRom>
+ <uocRam>0</uocRam>
+ <hadIROM>1</hadIROM>
+ <hadIRAM>1</hadIRAM>
+ <hadXRAM>0</hadXRAM>
+ <uocXRam>0</uocXRam>
+ <RvdsVP>0</RvdsVP>
+ <hadIRAM2>0</hadIRAM2>
+ <hadIROM2>0</hadIROM2>
+ <StupSel>8</StupSel>
+ <useUlib>0</useUlib>
+ <EndSel>0</EndSel>
+ <uLtcg>0</uLtcg>
+ <nSecure>0</nSecure>
+ <RoSelD>3</RoSelD>
+ <RwSelD>4</RwSelD>
+ <CodeSel>0</CodeSel>
+ <OptFeed>0</OptFeed>
+ <NoZi1>0</NoZi1>
+ <NoZi2>0</NoZi2>
+ <NoZi3>0</NoZi3>
+ <NoZi4>0</NoZi4>
+ <NoZi5>0</NoZi5>
+ <Ro1Chk>0</Ro1Chk>
+ <Ro2Chk>0</Ro2Chk>
+ <Ro3Chk>0</Ro3Chk>
+ <Ir1Chk>1</Ir1Chk>
+ <Ir2Chk>0</Ir2Chk>
+ <Ra1Chk>0</Ra1Chk>
+ <Ra2Chk>0</Ra2Chk>
+ <Ra3Chk>0</Ra3Chk>
+ <Im1Chk>1</Im1Chk>
+ <Im2Chk>0</Im2Chk>
+ <OnChipMemories>
+ <Ocm1>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm1>
+ <Ocm2>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm2>
+ <Ocm3>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm3>
+ <Ocm4>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm4>
+ <Ocm5>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm5>
+ <Ocm6>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </Ocm6>
+ <IRAM>
+ <Type>0</Type>
+ <StartAddress>0x20000000</StartAddress>
+ <Size>0x10000</Size>
+ </IRAM>
+ <IROM>
+ <Type>1</Type>
+ <StartAddress>0x8000000</StartAddress>
+ <Size>0x80000</Size>
+ </IROM>
+ <XRAM>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </XRAM>
+ <OCR_RVCT1>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT1>
+ <OCR_RVCT2>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT2>
+ <OCR_RVCT3>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT3>
+ <OCR_RVCT4>
+ <Type>1</Type>
+ <StartAddress>0x8000000</StartAddress>
+ <Size>0x80000</Size>
+ </OCR_RVCT4>
+ <OCR_RVCT5>
+ <Type>1</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT5>
+ <OCR_RVCT6>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT6>
+ <OCR_RVCT7>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT7>
+ <OCR_RVCT8>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT8>
+ <OCR_RVCT9>
+ <Type>0</Type>
+ <StartAddress>0x20000000</StartAddress>
+ <Size>0x10000</Size>
+ </OCR_RVCT9>
+ <OCR_RVCT10>
+ <Type>0</Type>
+ <StartAddress>0x0</StartAddress>
+ <Size>0x0</Size>
+ </OCR_RVCT10>
+ </OnChipMemories>
+ <RvctStartVector></RvctStartVector>
+ </ArmAdsMisc>
+ <Cads>
+ <interw>1</interw>
+ <Optim>1</Optim>
+ <oTime>0</oTime>
+ <SplitLS>0</SplitLS>
+ <OneElfS>0</OneElfS>
+ <Strict>0</Strict>
+ <EnumInt>0</EnumInt>
+ <PlainCh>0</PlainCh>
+ <Ropi>0</Ropi>
+ <Rwpi>0</Rwpi>
+ <wLevel>0</wLevel>
+ <uThumb>0</uThumb>
+ <uSurpInc>0</uSurpInc>
+ <uC99>1</uC99>
+ <useXO>0</useXO>
+ <v6Lang>1</v6Lang>
+ <v6LangP>1</v6LangP>
+ <vShortEn>1</vShortEn>
+ <vShortWch>1</vShortWch>
+ <v6Lto>0</v6Lto>
+ <v6WtE>0</v6WtE>
+ <v6Rtti>0</v6Rtti>
+ <VariousControls>
+ <MiscControls></MiscControls>
+ <Define></Define>
+ <Undefine></Undefine>
+ <IncludePath>applications;.;drivers;Libraries\CMSIS\GD\GD32F30x\Include;Libraries\CMSIS;Libraries\GD32F30x_standard_peripheral\Include;..\..\include;..\..\libcpu\arm\cortex-m4;..\..\libcpu\arm\common;..\..\components\dfs\include;..\..\components\dfs\filesystems\devfs;..\..\components\dfs\filesystems\elmfat;..\..\components\drivers\include;..\..\components\drivers\include;..\..\components\drivers\include;..\..\components\finsh</IncludePath>
+ </VariousControls>
+ </Cads>
+ <Aads>
+ <interw>1</interw>
+ <Ropi>0</Ropi>
+ <Rwpi>0</Rwpi>
+ <thumb>0</thumb>
+ <SplitLS>0</SplitLS>
+ <SwStkChk>0</SwStkChk>
+ <NoWarn>0</NoWarn>
+ <uSurpInc>0</uSurpInc>
+ <useXO>0</useXO>
+ <uClangAs>0</uClangAs>
+ <VariousControls>
+ <MiscControls></MiscControls>
+ <Define></Define>
+ <Undefine></Undefine>
+ <IncludePath></IncludePath>
+ </VariousControls>
+ </Aads>
+ <LDads>
+ <umfTarg>1</umfTarg>
+ <Ropi>0</Ropi>
+ <Rwpi>0</Rwpi>
+ <noStLib>0</noStLib>
+ <RepFail>1</RepFail>
+ <useFile>0</useFile>
+ <TextAddressRange>0x08000000</TextAddressRange>
+ <DataAddressRange>0x20000000</DataAddressRange>
+ <pXoBase></pXoBase>
+ <ScatterFile></ScatterFile>
+ <IncludeLibs></IncludeLibs>
+ <IncludeLibsPath></IncludeLibsPath>
+ <Misc>--keep *.o(RTMSymTab) --keep *.o(.rti_fn.*) --keep *.o(FSymTab) --keep *.o(VSymTab)</Misc>
+ <LinkerInputFile></LinkerInputFile>
+ <DisabledWarnings></DisabledWarnings>
+ </LDads>
+ </TargetArmAds>
+ </TargetOption>
+ <Groups>
+ <Group>
+ <GroupName>::CMSIS</GroupName>
+ </Group>
+ </Groups>
+ </Target>
+ </Targets>
+
+ <RTE>
+ <apis/>
+ <components>
+ <component Cclass="CMSIS" Cgroup="CORE" Cvendor="ARM" Cversion="5.0.1" condition="ARMv6_7_8-M Device">
+ <package name="CMSIS" schemaVersion="1.3" url="http://www.keil.com/pack/" vendor="ARM" version="5.0.1"/>
+ <targetInfos>
+ <targetInfo name="rt-thread_gd32f30x"/>
+ </targetInfos>
+ </component>
+ </components>
+ <files/>
+ </RTE>
+
+</Project>
diff --git a/libcpu/arm/cortex-m23/SConscript b/libcpu/arm/cortex-m23/SConscript
new file mode 100644
index 0000000000..9ff30a796b
--- /dev/null
+++ b/libcpu/arm/cortex-m23/SConscript
@@ -0,0 +1,23 @@
+# RT-Thread building script for component
+
+from building import *
+
+Import('rtconfig')
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp')
+CPPPATH = [cwd]
+
+if rtconfig.PLATFORM == 'armcc':
+ src += Glob('*_rvds.S')
+
+if rtconfig.PLATFORM == 'gcc':
+ src += Glob('*_init.S')
+ src += Glob('*_gcc.S')
+
+if rtconfig.PLATFORM == 'iar':
+ src += Glob('*_iar.S')
+
+group = DefineGroup('cpu', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/libcpu/arm/cortex-m23/context_gcc.S b/libcpu/arm/cortex-m23/context_gcc.S
new file mode 100644
index 0000000000..d17a8aa12c
--- /dev/null
+++ b/libcpu/arm/cortex-m23/context_gcc.S
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2009-10-11 Bernard First version
+ * 2010-12-29 onelife Modify for EFM32
+ * 2011-06-17 onelife Merge all of the assembly source code into context_gcc.S
+ * 2011-07-12 onelife Add interrupt context check function
+ * 2013-06-18 aozima add restore MSP feature.
+ * 2013-07-09 aozima enhancement hard fault exception handler.
+ */
+
+ .cpu cortex-m3
+ .fpu softvfp
+ .syntax unified
+ .thumb
+ .text
+
+ .equ SCB_VTOR, 0xE000ED08 /* Vector Table Offset Register */
+ .equ ICSR, 0xE000ED04 /* interrupt control state register */
+ .equ PENDSVSET_BIT, 0x10000000 /* value to trigger PendSV exception */
+
+ .equ SHPR3, 0xE000ED20 /* system priority register (3) */
+ .equ PENDSV_PRI_LOWEST, 0x00FF0000 /* PendSV priority value (lowest) */
+
+/*
+ * rt_base_t rt_hw_interrupt_disable();
+ */
+ .global rt_hw_interrupt_disable
+ .type rt_hw_interrupt_disable, %function
+rt_hw_interrupt_disable:
+ MRS R0, PRIMASK
+ CPSID I
+ BX LR
+
+/*
+ * void rt_hw_interrupt_enable(rt_base_t level);
+ */
+ .global rt_hw_interrupt_enable
+ .type rt_hw_interrupt_enable, %function
+rt_hw_interrupt_enable:
+ MSR PRIMASK, R0
+ BX LR
+
+/*
+ * void rt_hw_context_switch(rt_uint32 from, rt_uint32 to);
+ * R0 --> from
+ * R1 --> to
+ */
+ .global rt_hw_context_switch_interrupt
+ .type rt_hw_context_switch_interrupt, %function
+ .global rt_hw_context_switch
+ .type rt_hw_context_switch, %function
+rt_hw_context_switch_interrupt:
+rt_hw_context_switch:
+ /* set rt_thread_switch_interrupt_flag to 1 */
+ LDR R2, =rt_thread_switch_interrupt_flag
+ LDR R3, [R2]
+ CMP R3, #1
+ BEQ _reswitch
+ MOV R3, #1
+ STR R3, [R2]
+
+ LDR R2, =rt_interrupt_from_thread /* set rt_interrupt_from_thread */
+ STR R0, [R2]
+
+_reswitch:
+ LDR R2, =rt_interrupt_to_thread /* set rt_interrupt_to_thread */
+ STR R1, [R2]
+
+ LDR R0, =ICSR /* trigger the PendSV exception (causes context switch) */
+ LDR R1, =PENDSVSET_BIT
+ STR R1, [R0]
+ BX LR
+
+/* R0 --> switch from thread stack
+ * R1 --> switch to thread stack
+ * psr, pc, LR, R12, R3, R2, R1, R0 are pushed into [from] stack
+ */
+ .global PendSV_Handler
+ .type PendSV_Handler, %function
+PendSV_Handler:
+ /* disable interrupt to protect context switch */
+ MRS R2, PRIMASK
+ CPSID I
+
+ /* get rt_thread_switch_interrupt_flag */
+ LDR R0, =rt_thread_switch_interrupt_flag
+ LDR R1, [R0]
+ CBZ R1, pendsv_exit /* pendsv aLReady handled */
+
+ /* clear rt_thread_switch_interrupt_flag to 0 */
+ MOV R1, #0
+ STR R1, [R0]
+
+ LDR R0, =rt_interrupt_from_thread
+ LDR R1, [R0]
+ CBZ R1, switch_to_thread /* skip register save at the first time */
+
+ MRS R1, PSP /* get from thread stack pointer */
+ STMFD R1!, {R4 - R11} /* push R4 - R11 register */
+ LDR R0, [R0]
+ STR R1, [R0] /* update from thread stack pointer */
+
+switch_to_thread:
+ LDR R1, =rt_interrupt_to_thread
+ LDR R1, [R1]
+ LDR R1, [R1] /* load thread stack pointer */
+
+ LDMFD R1!, {R4 - R11} /* pop R4 - R11 register */
+ MSR PSP, R1 /* update stack pointer */
+
+pendsv_exit:
+ /* restore interrupt */
+ MSR PRIMASK, R2
+
+ ORR LR, LR, #0x04
+ BX LR
+
+/*
+ * void rt_hw_context_switch_to(rt_uint32 to);
+ * R0 --> to
+ */
+ .global rt_hw_context_switch_to
+ .type rt_hw_context_switch_to, %function
+rt_hw_context_switch_to:
+ LDR R1, =rt_interrupt_to_thread
+ STR R0, [R1]
+
+ /* set from thread to 0 */
+ LDR R1, =rt_interrupt_from_thread
+ MOV R0, #0
+ STR R0, [R1]
+
+ /* set interrupt flag to 1 */
+ LDR R1, =rt_thread_switch_interrupt_flag
+ MOV R0, #1
+ STR R0, [R1]
+
+ /* set the PendSV exception priority */
+ LDR R0, =SHPR3
+ LDR R1, =PENDSV_PRI_LOWEST
+ LDR.W R2, [R0,#0] /* read */
+ ORR R1, R1, R2 /* modify */
+ STR R1, [R0] /* write-back */
+
+ LDR R0, =ICSR /* trigger the PendSV exception (causes context switch) */
+ LDR R1, =PENDSVSET_BIT
+ STR R1, [R0]
+
+ /* restore MSP */
+ LDR r0, =SCB_VTOR
+ LDR r0, [r0]
+ LDR r0, [r0]
+ NOP
+ MSR msp, r0
+
+ /* enable interrupts at processor level */
+ CPSIE F
+ CPSIE I
+
+ /* never reach here! */
+
+/* compatible with old version */
+ .global rt_hw_interrupt_thread_switch
+ .type rt_hw_interrupt_thread_switch, %function
+rt_hw_interrupt_thread_switch:
+ BX LR
+ NOP
+
+ .global HardFault_Handler
+ .type HardFault_Handler, %function
+HardFault_Handler:
+ /* get current context */
+ MRS r0, msp /* get fault context from handler. */
+ TST lr, #0x04 /* if(!EXC_RETURN[2]) */
+ BEQ _get_sp_done
+ MRS r0, psp /* get fault context from thread. */
+_get_sp_done:
+
+ STMFD r0!, {r4 - r11} /* push r4 - r11 register */
+ STMFD r0!, {lr} /* push exec_return register */
+
+ TST lr, #0x04 /* if(!EXC_RETURN[2]) */
+ BEQ _update_msp
+ MSR psp, r0 /* update stack pointer to PSP. */
+ B _update_done
+_update_msp:
+ MSR msp, r0 /* update stack pointer to MSP. */
+_update_done:
+
+ PUSH {LR}
+ BL rt_hw_hard_fault_exception
+ POP {LR}
+
+ ORR LR, LR, #0x04
+ BX LR
+
+/*
+ * rt_uint32_t rt_hw_interrupt_check(void);
+ * R0 --> state
+ */
+ .global rt_hw_interrupt_check
+ .type rt_hw_interrupt_check, %function
+rt_hw_interrupt_check:
+ MRS R0, IPSR
+ BX LR
diff --git a/libcpu/arm/cortex-m23/context_iar.S b/libcpu/arm/cortex-m23/context_iar.S
new file mode 100644
index 0000000000..91645c48b3
--- /dev/null
+++ b/libcpu/arm/cortex-m23/context_iar.S
@@ -0,0 +1,202 @@
+;/*
+; * Copyright (c) 2006-2018, RT-Thread Development Team
+; *
+; * SPDX-License-Identifier: Apache-2.0
+; *
+; * Change Logs:
+; * Date Author Notes
+; * 2009-01-17 Bernard first version
+; * 2009-09-27 Bernard add protect when contex switch occurs
+; * 2013-06-18 aozima add restore MSP feature.
+; * 2013-07-09 aozima enhancement hard fault exception handler.
+; */
+
+;/**
+; * @addtogroup cortex-m3
+; */
+;/*@{*/
+
+SCB_VTOR EQU 0xE000ED08 ; Vector Table Offset Register
+NVIC_INT_CTRL EQU 0xE000ED04 ; interrupt control state register
+NVIC_SYSPRI2 EQU 0xE000ED20 ; system priority register (2)
+NVIC_PENDSV_PRI EQU 0x00FF0000 ; PendSV priority value (lowest)
+NVIC_PENDSVSET EQU 0x10000000 ; value to trigger PendSV exception
+
+ SECTION .text:CODE(2)
+ THUMB
+ REQUIRE8
+ PRESERVE8
+
+ IMPORT rt_thread_switch_interrupt_flag
+ IMPORT rt_interrupt_from_thread
+ IMPORT rt_interrupt_to_thread
+
+;/*
+; * rt_base_t rt_hw_interrupt_disable();
+; */
+ EXPORT rt_hw_interrupt_disable
+rt_hw_interrupt_disable:
+ MRS r0, PRIMASK
+ CPSID I
+ BX LR
+
+;/*
+; * void rt_hw_interrupt_enable(rt_base_t level);
+; */
+ EXPORT rt_hw_interrupt_enable
+rt_hw_interrupt_enable:
+ MSR PRIMASK, r0
+ BX LR
+
+;/*
+; * void rt_hw_context_switch(rt_uint32 from, rt_uint32 to);
+; * r0 --> from
+; * r1 --> to
+; */
+ EXPORT rt_hw_context_switch_interrupt
+ EXPORT rt_hw_context_switch
+rt_hw_context_switch_interrupt:
+rt_hw_context_switch:
+ ; set rt_thread_switch_interrupt_flag to 1
+ LDR r2, =rt_thread_switch_interrupt_flag
+ LDR r3, [r2]
+ CMP r3, #1
+ BEQ _reswitch
+ MOV r3, #1
+ STR r3, [r2]
+
+ LDR r2, =rt_interrupt_from_thread ; set rt_interrupt_from_thread
+ STR r0, [r2]
+
+_reswitch
+ LDR r2, =rt_interrupt_to_thread ; set rt_interrupt_to_thread
+ STR r1, [r2]
+
+ LDR r0, =NVIC_INT_CTRL ; trigger the PendSV exception (causes context switch)
+ LDR r1, =NVIC_PENDSVSET
+ STR r1, [r0]
+ BX LR
+
+; r0 --> switch from thread stack
+; r1 --> switch to thread stack
+; psr, pc, lr, r12, r3, r2, r1, r0 are pushed into [from] stack
+ EXPORT PendSV_Handler
+PendSV_Handler:
+
+ ; disable interrupt to protect context switch
+ MRS r2, PRIMASK
+ CPSID I
+
+ ; get rt_thread_switch_interrupt_flag
+ LDR r0, =rt_thread_switch_interrupt_flag
+ LDR r1, [r0]
+ CBZ r1, pendsv_exit ; pendsv already handled
+
+ ; clear rt_thread_switch_interrupt_flag to 0
+ MOV r1, #0x00
+ STR r1, [r0]
+
+ LDR r0, =rt_interrupt_from_thread
+ LDR r1, [r0]
+ CBZ r1, switch_to_thread ; skip register save at the first time
+
+ MRS r1, psp ; get from thread stack pointer
+ STMFD r1!, {r4 - r11} ; push r4 - r11 register
+ LDR r0, [r0]
+ STR r1, [r0] ; update from thread stack pointer
+
+switch_to_thread
+ LDR r1, =rt_interrupt_to_thread
+ LDR r1, [r1]
+ LDR r1, [r1] ; load thread stack pointer
+
+ LDMFD r1!, {r4 - r11} ; pop r4 - r11 register
+ MSR psp, r1 ; update stack pointer
+
+pendsv_exit
+ ; restore interrupt
+ MSR PRIMASK, r2
+
+ ORR lr, lr, #0x04
+ BX lr
+
+;/*
+; * void rt_hw_context_switch_to(rt_uint32 to);
+; * r0 --> to
+; */
+ EXPORT rt_hw_context_switch_to
+rt_hw_context_switch_to:
+ LDR r1, =rt_interrupt_to_thread
+ STR r0, [r1]
+
+ ; set from thread to 0
+ LDR r1, =rt_interrupt_from_thread
+ MOV r0, #0x0
+ STR r0, [r1]
+
+ ; set interrupt flag to 1
+ LDR r1, =rt_thread_switch_interrupt_flag
+ MOV r0, #1
+ STR r0, [r1]
+
+ ; set the PendSV exception priority
+ LDR r0, =NVIC_SYSPRI2
+ LDR r1, =NVIC_PENDSV_PRI
+ LDR.W r2, [r0,#0x00] ; read
+ ORR r1,r1,r2 ; modify
+ STR r1, [r0] ; write-back
+
+ LDR r0, =NVIC_INT_CTRL ; trigger the PendSV exception (causes context switch)
+ LDR r1, =NVIC_PENDSVSET
+ STR r1, [r0]
+
+ ; restore MSP
+ LDR r0, =SCB_VTOR
+ LDR r0, [r0]
+ LDR r0, [r0]
+ NOP
+ MSR msp, r0
+
+ ; enable interrupts at processor level
+ CPSIE F
+ CPSIE I
+
+ ; never reach here!
+
+; compatible with old version
+ EXPORT rt_hw_interrupt_thread_switch
+rt_hw_interrupt_thread_switch:
+ BX lr
+
+ IMPORT rt_hw_hard_fault_exception
+ EXPORT HardFault_Handler
+HardFault_Handler:
+
+ ; get current context
+ MRS r0, msp ; get fault context from handler.
+ TST lr, #0x04 ; if(!EXC_RETURN[2])
+ BEQ _get_sp_done
+ MRS r0, psp ; get fault context from thread.
+_get_sp_done
+
+ STMFD r0!, {r4 - r11} ; push r4 - r11 register
+ ;STMFD r0!, {lr} ; push exec_return register
+ SUB r0, r0, #0x04
+ STR lr, [r0]
+
+ TST lr, #0x04 ; if(!EXC_RETURN[2])
+ BEQ _update_msp
+ MSR psp, r0 ; update stack pointer to PSP.
+ B _update_done
+_update_msp
+ MSR msp, r0 ; update stack pointer to MSP.
+_update_done
+
+ PUSH {lr}
+ BL rt_hw_hard_fault_exception
+ POP {lr}
+
+ ORR lr, lr, #0x04
+ BX lr
+
+ END
diff --git a/libcpu/arm/cortex-m23/context_rvds.S b/libcpu/arm/cortex-m23/context_rvds.S
new file mode 100644
index 0000000000..c0a2130703
--- /dev/null
+++ b/libcpu/arm/cortex-m23/context_rvds.S
@@ -0,0 +1,207 @@
+;/*
+; * Copyright (c) 2006-2018, RT-Thread Development Team
+; *
+; * SPDX-License-Identifier: Apache-2.0
+; *
+; * Change Logs:
+; * Date Author Notes
+; * 2009-01-17 Bernard first version
+; * 2013-06-18 aozima add restore MSP feature.
+; * 2013-07-09 aozima enhancement hard fault exception handler.
+; */
+
+;/**
+; * @addtogroup CORTEX-M23
+; */
+;/*@{*/
+
+SCB_VTOR EQU 0xE000ED08 ; Vector Table Offset Register
+NVIC_INT_CTRL EQU 0xE000ED04 ; interrupt control state register
+NVIC_SYSPRI2 EQU 0xE000ED20 ; system priority register (2)
+NVIC_PENDSV_PRI EQU 0x00FF0000 ; PendSV priority value (lowest)
+NVIC_PENDSVSET EQU 0x10000000 ; value to trigger PendSV exception
+
+ AREA |.text|, CODE, READONLY, ALIGN=2
+ THUMB
+ REQUIRE8
+ PRESERVE8
+
+ IMPORT rt_thread_switch_interrupt_flag
+ IMPORT rt_interrupt_from_thread
+ IMPORT rt_interrupt_to_thread
+
+;/*
+; * rt_base_t rt_hw_interrupt_disable();
+; */
+rt_hw_interrupt_disable PROC
+ EXPORT rt_hw_interrupt_disable
+ MRS r0, PRIMASK
+ CPSID I
+ BX LR
+ ENDP
+
+;/*
+; * void rt_hw_interrupt_enable(rt_base_t level);
+; */
+rt_hw_interrupt_enable PROC
+ EXPORT rt_hw_interrupt_enable
+ MSR PRIMASK, r0
+ BX LR
+ ENDP
+
+;/*
+; * void rt_hw_context_switch(rt_uint32 from, rt_uint32 to);
+; * r0 --> from
+; * r1 --> to
+; */
+rt_hw_context_switch_interrupt
+ EXPORT rt_hw_context_switch_interrupt
+rt_hw_context_switch PROC
+ EXPORT rt_hw_context_switch
+
+ ; set rt_thread_switch_interrupt_flag to 1
+ LDR r2, =rt_thread_switch_interrupt_flag
+ LDR r3, [r2]
+ CMP r3, #1
+ BEQ _reswitch
+ MOV r3, #1
+ STR r3, [r2]
+
+ LDR r2, =rt_interrupt_from_thread ; set rt_interrupt_from_thread
+ STR r0, [r2]
+
+_reswitch
+ LDR r2, =rt_interrupt_to_thread ; set rt_interrupt_to_thread
+ STR r1, [r2]
+
+ LDR r0, =NVIC_INT_CTRL ; trigger the PendSV exception (causes context switch)
+ LDR r1, =NVIC_PENDSVSET
+ STR r1, [r0]
+ BX LR
+ ENDP
+
+; r0 --> switch from thread stack
+; r1 --> switch to thread stack
+; psr, pc, lr, r12, r3, r2, r1, r0 are pushed into [from] stack
+PendSV_Handler PROC
+ EXPORT PendSV_Handler
+
+ ; disable interrupt to protect context switch
+ MRS r2, PRIMASK
+ CPSID I
+
+ ; get rt_thread_switch_interrupt_flag
+ LDR r0, =rt_thread_switch_interrupt_flag
+ LDR r1, [r0]
+ CBZ r1, pendsv_exit ; pendsv already handled
+
+ ; clear rt_thread_switch_interrupt_flag to 0
+ MOV r1, #0x00
+ STR r1, [r0]
+
+ LDR r0, =rt_interrupt_from_thread
+ LDR r1, [r0]
+ CBZ r1, switch_to_thread ; skip register save at the first time
+
+ MRS r1, psp ; get from thread stack pointer
+ STMFD r1!, {r4 - r11} ; push r4 - r11 register
+ LDR r0, [r0]
+ STR r1, [r0] ; update from thread stack pointer
+
+switch_to_thread
+ LDR r1, =rt_interrupt_to_thread
+ LDR r1, [r1]
+ LDR r1, [r1] ; load thread stack pointer
+
+ LDMFD r1!, {r4 - r11} ; pop r4 - r11 register
+ MSR psp, r1 ; update stack pointer
+
+pendsv_exit
+ ; restore interrupt
+ MSR PRIMASK, r2
+
+ ORR lr, lr, #0x04
+ BX lr
+ ENDP
+
+;/*
+; * void rt_hw_context_switch_to(rt_uint32 to);
+; * r0 --> to
+; * this fucntion is used to perform the first thread switch
+; */
+rt_hw_context_switch_to PROC
+ EXPORT rt_hw_context_switch_to
+ ; set to thread
+ LDR r1, =rt_interrupt_to_thread
+ STR r0, [r1]
+
+ ; set from thread to 0
+ LDR r1, =rt_interrupt_from_thread
+ MOV r0, #0x0
+ STR r0, [r1]
+
+ ; set interrupt flag to 1
+ LDR r1, =rt_thread_switch_interrupt_flag
+ MOV r0, #1
+ STR r0, [r1]
+
+ ; set the PendSV exception priority
+ LDR r0, =NVIC_SYSPRI2
+ LDR r1, =NVIC_PENDSV_PRI
+ LDR.W r2, [r0,#0x00] ; read
+ ORR r1,r1,r2 ; modify
+ STR r1, [r0] ; write-back
+
+ ; trigger the PendSV exception (causes context switch)
+ LDR r0, =NVIC_INT_CTRL
+ LDR r1, =NVIC_PENDSVSET
+ STR r1, [r0]
+
+ ; restore MSP
+ LDR r0, =SCB_VTOR
+ LDR r0, [r0]
+ LDR r0, [r0]
+ MSR msp, r0
+
+ ; enable interrupts at processor level
+ CPSIE F
+ CPSIE I
+
+ ; never reach here!
+ ENDP
+
+; compatible with old version
+rt_hw_interrupt_thread_switch PROC
+ EXPORT rt_hw_interrupt_thread_switch
+ BX lr
+ ENDP
+
+ IMPORT rt_hw_hard_fault_exception
+ EXPORT HardFault_Handler
+HardFault_Handler PROC
+
+ ; get current context
+ TST lr, #0x04 ; if(!EXC_RETURN[2])
+ ITE EQ
+ MRSEQ r0, msp ; [2]=0 ==> Z=1, get fault context from handler.
+ MRSNE r0, psp ; [2]=1 ==> Z=0, get fault context from thread.
+
+ STMFD r0!, {r4 - r11} ; push r4 - r11 register
+ STMFD r0!, {lr} ; push exec_return register
+
+ TST lr, #0x04 ; if(!EXC_RETURN[2])
+ ITE EQ
+ MSREQ msp, r0 ; [2]=0 ==> Z=1, update stack pointer to MSP.
+ MSRNE psp, r0 ; [2]=1 ==> Z=0, update stack pointer to PSP.
+
+ PUSH {lr}
+ BL rt_hw_hard_fault_exception
+ POP {lr}
+
+ ORR lr, lr, #0x04
+ BX lr
+ ENDP
+
+ ALIGN 4
+
+ END
diff --git a/libcpu/arm/cortex-m23/cpuport.c b/libcpu/arm/cortex-m23/cpuport.c
new file mode 100644
index 0000000000..a386747750
--- /dev/null
+++ b/libcpu/arm/cortex-m23/cpuport.c
@@ -0,0 +1,403 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2009-01-05 Bernard first version
+ * 2011-02-14 onelife Modify for EFM32
+ * 2011-06-17 onelife Merge all of the C source code into cpuport.c
+ * 2012-12-23 aozima stack addr align to 8byte.
+ * 2012-12-29 Bernard Add exception hook.
+ * 2013-07-09 aozima enhancement hard fault exception handler.
+ */
+
+#include <rtthread.h>
+
+struct exception_stack_frame
+{
+ rt_uint32_t r0;
+ rt_uint32_t r1;
+ rt_uint32_t r2;
+ rt_uint32_t r3;
+ rt_uint32_t r12;
+ rt_uint32_t lr;
+ rt_uint32_t pc;
+ rt_uint32_t psr;
+};
+
+struct stack_frame
+{
+ /* r4 ~ r11 register */
+ rt_uint32_t r4;
+ rt_uint32_t r5;
+ rt_uint32_t r6;
+ rt_uint32_t r7;
+ rt_uint32_t r8;
+ rt_uint32_t r9;
+ rt_uint32_t r10;
+ rt_uint32_t r11;
+
+ struct exception_stack_frame exception_stack_frame;
+};
+
+/* flag in interrupt handling */
+rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
+rt_uint32_t rt_thread_switch_interrupt_flag;
+/* exception hook */
+static rt_err_t (*rt_exception_hook)(void *context) = RT_NULL;
+
+/**
+ * This function will initialize thread stack
+ *
+ * @param tentry the entry of thread
+ * @param parameter the parameter of entry
+ * @param stack_addr the beginning stack address
+ * @param texit the function will be called when thread exit
+ *
+ * @return stack address
+ */
+rt_uint8_t *rt_hw_stack_init(void *tentry,
+ void *parameter,
+ rt_uint8_t *stack_addr,
+ void *texit)
+{
+ struct stack_frame *stack_frame;
+ rt_uint8_t *stk;
+ unsigned long i;
+
+ stk = stack_addr + sizeof(rt_uint32_t);
+ stk = (rt_uint8_t *)RT_ALIGN_DOWN((rt_uint32_t)stk, 8);
+ stk -= sizeof(struct stack_frame);
+
+ stack_frame = (struct stack_frame *)stk;
+
+ /* init all register */
+ for (i = 0; i < sizeof(struct stack_frame) / sizeof(rt_uint32_t); i ++)
+ {
+ ((rt_uint32_t *)stack_frame)[i] = 0xdeadbeef;
+ }
+
+ stack_frame->exception_stack_frame.r0 = (unsigned long)parameter; /* r0 : argument */
+ stack_frame->exception_stack_frame.r1 = 0; /* r1 */
+ stack_frame->exception_stack_frame.r2 = 0; /* r2 */
+ stack_frame->exception_stack_frame.r3 = 0; /* r3 */
+ stack_frame->exception_stack_frame.r12 = 0; /* r12 */
+ stack_frame->exception_stack_frame.lr = (unsigned long)texit; /* lr */
+ stack_frame->exception_stack_frame.pc = (unsigned long)tentry; /* entry point, pc */
+ stack_frame->exception_stack_frame.psr = 0x01000000L; /* PSR */
+
+ /* return task's current stack address */
+ return stk;
+}
+
+/**
+ * This function set the hook, which is invoked on fault exception handling.
+ *
+ * @param exception_handle the exception handling hook function.
+ */
+void rt_hw_exception_install(rt_err_t (*exception_handle)(void* context))
+{
+ rt_exception_hook = exception_handle;
+}
+
+#define SCB_CFSR (*(volatile const unsigned *)0xE000ED28) /* Configurable Fault Status Register */
+#define SCB_HFSR (*(volatile const unsigned *)0xE000ED2C) /* HardFault Status Register */
+#define SCB_MMAR (*(volatile const unsigned *)0xE000ED34) /* MemManage Fault Address register */
+#define SCB_BFAR (*(volatile const unsigned *)0xE000ED38) /* Bus Fault Address Register */
+#define SCB_AIRCR (*(volatile unsigned long *)0xE000ED0C) /* Reset control Address Register */
+#define SCB_RESET_VALUE 0x05FA0004 /* Reset value, write to SCB_AIRCR can reset cpu */
+
+#define SCB_CFSR_MFSR (*(volatile const unsigned char*)0xE000ED28) /* Memory-management Fault Status Register */
+#define SCB_CFSR_BFSR (*(volatile const unsigned char*)0xE000ED29) /* Bus Fault Status Register */
+#define SCB_CFSR_UFSR (*(volatile const unsigned short*)0xE000ED2A) /* Usage Fault Status Register */
+
+#ifdef RT_USING_FINSH
+static void usage_fault_track(void)
+{
+ rt_kprintf("usage fault:\n");
+ rt_kprintf("SCB_CFSR_UFSR:0x%02X ", SCB_CFSR_UFSR);
+
+ if(SCB_CFSR_UFSR & (1<<0))
+ {
+ /* [0]:UNDEFINSTR */
+ rt_kprintf("UNDEFINSTR ");
+ }
+
+ if(SCB_CFSR_UFSR & (1<<1))
+ {
+ /* [1]:INVSTATE */
+ rt_kprintf("INVSTATE ");
+ }
+
+ if(SCB_CFSR_UFSR & (1<<2))
+ {
+ /* [2]:INVPC */
+ rt_kprintf("INVPC ");
+ }
+
+ if(SCB_CFSR_UFSR & (1<<3))
+ {
+ /* [3]:NOCP */
+ rt_kprintf("NOCP ");
+ }
+
+ if(SCB_CFSR_UFSR & (1<<8))
+ {
+ /* [8]:UNALIGNED */
+ rt_kprintf("UNALIGNED ");
+ }
+
+ if(SCB_CFSR_UFSR & (1<<9))
+ {
+ /* [9]:DIVBYZERO */
+ rt_kprintf("DIVBYZERO ");
+ }
+
+ rt_kprintf("\n");
+}
+
+static void bus_fault_track(void)
+{
+ rt_kprintf("bus fault:\n");
+ rt_kprintf("SCB_CFSR_BFSR:0x%02X ", SCB_CFSR_BFSR);
+
+ if(SCB_CFSR_BFSR & (1<<0))
+ {
+ /* [0]:IBUSERR */
+ rt_kprintf("IBUSERR ");
+ }
+
+ if(SCB_CFSR_BFSR & (1<<1))
+ {
+ /* [1]:PRECISERR */
+ rt_kprintf("PRECISERR ");
+ }
+
+ if(SCB_CFSR_BFSR & (1<<2))
+ {
+ /* [2]:IMPRECISERR */
+ rt_kprintf("IMPRECISERR ");
+ }
+
+ if(SCB_CFSR_BFSR & (1<<3))
+ {
+ /* [3]:UNSTKERR */
+ rt_kprintf("UNSTKERR ");
+ }
+
+ if(SCB_CFSR_BFSR & (1<<4))
+ {
+ /* [4]:STKERR */
+ rt_kprintf("STKERR ");
+ }
+
+ if(SCB_CFSR_BFSR & (1<<7))
+ {
+ rt_kprintf("SCB->BFAR:%08X\n", SCB_BFAR);
+ }
+ else
+ {
+ rt_kprintf("\n");
+ }
+}
+
+static void mem_manage_fault_track(void)
+{
+ rt_kprintf("mem manage fault:\n");
+ rt_kprintf("SCB_CFSR_MFSR:0x%02X ", SCB_CFSR_MFSR);
+
+ if(SCB_CFSR_MFSR & (1<<0))
+ {
+ /* [0]:IACCVIOL */
+ rt_kprintf("IACCVIOL ");
+ }
+
+ if(SCB_CFSR_MFSR & (1<<1))
+ {
+ /* [1]:DACCVIOL */
+ rt_kprintf("DACCVIOL ");
+ }
+
+ if(SCB_CFSR_MFSR & (1<<3))
+ {
+ /* [3]:MUNSTKERR */
+ rt_kprintf("MUNSTKERR ");
+ }
+
+ if(SCB_CFSR_MFSR & (1<<4))
+ {
+ /* [4]:MSTKERR */
+ rt_kprintf("MSTKERR ");
+ }
+
+ if(SCB_CFSR_MFSR & (1<<7))
+ {
+ /* [7]:MMARVALID */
+ rt_kprintf("SCB->MMAR:%08X\n", SCB_MMAR);
+ }
+ else
+ {
+ rt_kprintf("\n");
+ }
+}
+
+static void hard_fault_track(void)
+{
+ if(SCB_HFSR & (1UL<<1))
+ {
+ /* [1]:VECTBL, Indicates hard fault is caused by failed vector fetch. */
+ rt_kprintf("failed vector fetch\n");
+ }
+
+ if(SCB_HFSR & (1UL<<30))
+ {
+ /* [30]:FORCED, Indicates hard fault is taken because of bus fault,
+ memory management fault, or usage fault. */
+ if(SCB_CFSR_BFSR)
+ {
+ bus_fault_track();
+ }
+
+ if(SCB_CFSR_MFSR)
+ {
+ mem_manage_fault_track();
+ }
+
+ if(SCB_CFSR_UFSR)
+ {
+ usage_fault_track();
+ }
+ }
+
+ if(SCB_HFSR & (1UL<<31))
+ {
+ /* [31]:DEBUGEVT, Indicates hard fault is triggered by debug event. */
+ rt_kprintf("debug event\n");
+ }
+}
+#endif /* RT_USING_FINSH */
+
+struct exception_info
+{
+ rt_uint32_t exc_return;
+ struct stack_frame stack_frame;
+};
+
+/*
+ * fault exception handler
+ */
+void rt_hw_hard_fault_exception(struct exception_info * exception_info)
+{
+ extern long list_thread(void);
+ struct stack_frame* context = &exception_info->stack_frame;
+
+ if (rt_exception_hook != RT_NULL)
+ {
+ rt_err_t result;
+
+ result = rt_exception_hook(exception_info);
+ if (result == RT_EOK)
+ return;
+ }
+
+ rt_kprintf("psr: 0x%08x\n", context->exception_stack_frame.psr);
+
+ rt_kprintf("r00: 0x%08x\n", context->exception_stack_frame.r0);
+ rt_kprintf("r01: 0x%08x\n", context->exception_stack_frame.r1);
+ rt_kprintf("r02: 0x%08x\n", context->exception_stack_frame.r2);
+ rt_kprintf("r03: 0x%08x\n", context->exception_stack_frame.r3);
+ rt_kprintf("r04: 0x%08x\n", context->r4);
+ rt_kprintf("r05: 0x%08x\n", context->r5);
+ rt_kprintf("r06: 0x%08x\n", context->r6);
+ rt_kprintf("r07: 0x%08x\n", context->r7);
+ rt_kprintf("r08: 0x%08x\n", context->r8);
+ rt_kprintf("r09: 0x%08x\n", context->r9);
+ rt_kprintf("r10: 0x%08x\n", context->r10);
+ rt_kprintf("r11: 0x%08x\n", context->r11);
+ rt_kprintf("r12: 0x%08x\n", context->exception_stack_frame.r12);
+ rt_kprintf(" lr: 0x%08x\n", context->exception_stack_frame.lr);
+ rt_kprintf(" pc: 0x%08x\n", context->exception_stack_frame.pc);
+
+ if(exception_info->exc_return & (1 << 2) )
+ {
+ rt_kprintf("hard fault on thread: %s\r\n\r\n", rt_thread_self()->name);
+
+#ifdef RT_USING_FINSH
+ list_thread();
+#endif /* RT_USING_FINSH */
+ }
+ else
+ {
+ rt_kprintf("hard fault on handler\r\n\r\n");
+ }
+
+#ifdef RT_USING_FINSH
+ hard_fault_track();
+#endif /* RT_USING_FINSH */
+
+ while (1);
+}
+
+/**
+ * shutdown CPU
+ */
+void rt_hw_cpu_shutdown(void)
+{
+ rt_kprintf("shutdown...\n");
+
+ RT_ASSERT(0);
+}
+
+/**
+ * reset CPU
+ */
+RT_WEAK void rt_hw_cpu_reset(void)
+{
+ SCB_AIRCR = SCB_RESET_VALUE;
+}
+
+#ifdef RT_USING_CPU_FFS
+/**
+ * This function finds the first bit set (beginning with the least significant bit)
+ * in value and return the index of that bit.
+ *
+ * Bits are numbered starting at 1 (the least significant bit). A return value of
+ * zero from any of these functions means that the argument was zero.
+ *
+ * @return return the index of the first bit set. If value is 0, then this function
+ * shall return 0.
+ */
+#if defined(__CC_ARM)
+__asm int __rt_ffs(int value)
+{
+ CMP r0, #0x00
+ BEQ exit
+
+ RBIT r0, r0
+ CLZ r0, r0
+ ADDS r0, r0, #0x01
+
+exit
+ BX lr
+}
+#elif defined(__IAR_SYSTEMS_ICC__)
+int __rt_ffs(int value)
+{
+ if (value == 0) return value;
+
+ asm("RBIT %0, %1" : "=r"(value) : "r"(value));
+ asm("CLZ %0, %1" : "=r"(value) : "r"(value));
+ asm("ADDS %0, %1, #0x01" : "=r"(value) : "r"(value));
+
+ return value;
+}
+#elif defined(__GNUC__)
+int __rt_ffs(int value)
+{
+ return __builtin_ffs(value);
+}
+#endif
+
+#endif