add ci build for all at32, use linker and startup from mcu cmsis instead of local files

50 files changed, 1023 insertions, 4837 deletions

diff --git a/.github/workflows/ci_set_matrix.py b/.github/workflows/ci_set_matrix.py
index 5fe805c82..4870ec28e 100755
--- a/.github/workflows/ci_set_matrix.py
+++ b/.github/workflows/ci_set_matrix.py
@@ -15,7 +15,7 @@ toolchain_list = [
 
 # family: [supported toolchain]
 family_list = {
-    "at32f403a_407 at32f423": ["arm-gcc"],
+    "at32f402_405 at32f403a_407 at32f413 at32f415 at32f423 at32f425 at32f435_437": ["arm-gcc"],
     "broadcom_32bit": ["arm-gcc"],
     "broadcom_64bit": ["aarch64-gcc"],
     "ch32v10x ch32v20x ch32v307 fomu gd32vf103": ["riscv-gcc"],
diff --git a/examples/build_system/cmake/cpu/cortex-m4-nofpu.cmake b/examples/build_system/cmake/cpu/cortex-m4-nofpu.cmake
new file mode 100644
index 000000000..eec924986
--- /dev/null
+++ b/examples/build_system/cmake/cpu/cortex-m4-nofpu.cmake
@@ -0,0 +1,30 @@
+if (TOOLCHAIN STREQUAL "gcc")
+  set(TOOLCHAIN_COMMON_FLAGS
+    -mthumb
+    -mcpu=cortex-m4
+    -mfloat-abi=soft
+    )
+  if (NOT DEFINED FREERTOS_PORT)
+    set(FREERTOS_PORT GCC_ARM_CM3 CACHE INTERNAL "")
+  endif ()
+
+elseif (TOOLCHAIN STREQUAL "clang")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --target=arm-none-eabi
+    -mcpu=cortex-m4
+    )
+  if (NOT DEFINED FREERTOS_PORT)
+    set(FREERTOS_PORT GCC_ARM_CM3 CACHE INTERNAL "")
+  endif ()
+
+elseif (TOOLCHAIN STREQUAL "iar")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --cpu cortex-m4
+    --fpu none
+    )
+
+  if (NOT DEFINED FREERTOS_PORT)
+    set(FREERTOS_PORT IAR_ARM_CM3 CACHE INTERNAL "")
+  endif ()
+
+endif ()
diff --git a/examples/build_system/make/cpu/cortex-m4-nofpu.mk b/examples/build_system/make/cpu/cortex-m4-nofpu.mk
new file mode 100644
index 000000000..ac2916005
--- /dev/null
+++ b/examples/build_system/make/cpu/cortex-m4-nofpu.mk
@@ -0,0 +1,20 @@
+ifeq ($(TOOLCHAIN),gcc)
+  CFLAGS += \
+    -mthumb \
+    -mcpu=cortex-m4 \
+    -mfloat-abi=soft
+
+else ifeq ($(TOOLCHAIN),clang)
+  CFLAGS += \
+	  --target=arm-none-eabi \
+	  -mcpu=cortex-m4
+
+else ifeq ($(TOOLCHAIN),iar)
+  CFLAGS += --cpu cortex-m4 --fpu none
+  ASFLAGS += --cpu cortex-m4 --fpu none
+
+else
+  $(error "TOOLCHAIN is not supported")
+endif
+
+FREERTOS_PORTABLE_SRC ?= $(FREERTOS_PORTABLE_PATH)/ARM_CM3
diff --git a/examples/device/net_lwip_webserver/skip.txt b/examples/device/net_lwip_webserver/skip.txt
index 20a264387..6f66efb53 100644
--- a/examples/device/net_lwip_webserver/skip.txt
+++ b/examples/device/net_lwip_webserver/skip.txt
@@ -15,6 +15,7 @@ mcu:STM32N6
 family:broadcom_64bit
 family:broadcom_32bit
 family:espressif
+board:AT_START_F425
 board:curiosity_nano
 board:frdm_kl25z
 # lpc55 has weird error 'ncm_interface' causes a section type conflict with 'ntb_parameters'
diff --git a/hw/bsp/at32f402_405/boards/AT_START_F402_405/AT32F405xC_FLASH.ld b/hw/bsp/at32f402_405/boards/AT_START_F402_405/AT32F405xC_FLASH.ld
deleted file mode 100644
index 0b3550ddb..000000000
--- a/hw/bsp/at32f402_405/boards/AT_START_F402_405/AT32F405xC_FLASH.ld
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : AT32F405xC_FLASH.ld
-**
-**  Abstract    : Linker script for AT32F405xC Device with
-**                256KByte FLASH, 102KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**  Target      : Artery Tek AT32
-**
-**  Environment : Arm gcc toolchain
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20019800;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x2000;      /* required amount of heap  */
-_Min_Stack_Size = 0x4000; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 256K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 102K
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data :
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss section */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(8);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(8);
-  } >RAM
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}
diff --git a/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.cmake b/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.cmake
index f27d73d7b..0d09680a1 100644
--- a/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.cmake
+++ b/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.cmake
@@ -1,4 +1,6 @@
 set(MCU_VARIANT AT32F405RCT7)
+set(MCU_LINKER_NAME AT32F405xC)
+
 set(JLINK_DEVICE ${MCU_VARIANT})
 
 function(update_board TARGET)
diff --git a/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.mk b/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.mk
index e09211794..25a719ccf 100644
--- a/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.mk
+++ b/hw/bsp/at32f402_405/boards/AT_START_F402_405/board.mk
@@ -1,5 +1,7 @@
-JLINK_DEVICE = AT32F405RCT7
-LD_FILE = $(BOARD_PATH)/AT32F405xC_FLASH.ld
+MCU_VARIANT = AT32F405RCT7
+MCU_LINKER_NAME = AT32F405xC
+
+JLINK_DEVICE = ${MCU_VARIANT}
 
 CFLAGS += \
-  -DAT32F405RCT7
+  -D${MCU_VARIANT}
diff --git a/hw/bsp/at32f402_405/family.cmake b/hw/bsp/at32f402_405/family.cmake
index 2d2cdc026..010e36b88 100644
--- a/hw/bsp/at32f402_405/family.cmake
+++ b/hw/bsp/at32f402_405/family.cmake
@@ -1,9 +1,9 @@
 include_guard()
 
-set(AT_FAMILY at32f402_405)
-set(AT_SDK_LIB ${TOP}/hw/mcu/artery/${AT_FAMILY}/libraries)
+set(AT32_FAMILY at32f402_405)
+set(AT32_SDK_LIB ${TOP}/hw/mcu/artery/${AT32_FAMILY}/libraries)
 
-string(TOUPPER ${AT_FAMILY} AT_FAMILY_UPPER)
+string(TOUPPER ${AT32_FAMILY} AT32_FAMILY_UPPER)
 
 # include board specific
 include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
@@ -12,15 +12,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 set(CMAKE_SYSTEM_CPU cortex-m4 CACHE INTERNAL "System Processor")
 set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
-set(FAMILY_MCUS ${AT_FAMILY_UPPER} CACHE INTERNAL "")
-
-# extract variant linker name
-string(LENGTH ${MCU_VARIANT} MCU_VARIANT_LEN)
-math(EXPR MCU_FLASH_CODE_INDEX "${MCU_VARIANT_LEN} - 3")
-math(EXPR MCU_VARIANT_PREFIX_LEN "${MCU_FLASH_CODE_INDEX} - 1")
-string(SUBSTRING ${MCU_VARIANT} ${MCU_FLASH_CODE_INDEX} 1 MCU_FLASH_CODE)
-string(SUBSTRING ${MCU_VARIANT} 0 ${MCU_VARIANT_PREFIX_LEN} MCU_VARIANT_PREFIX)
-set(MCU_LINKER_NAME ${MCU_VARIANT_PREFIX}x${MCU_FLASH_CODE})
+set(FAMILY_MCUS ${AT32_FAMILY_UPPER} CACHE INTERNAL "")
 
 #------------------------------------
 # BOARD_TARGET
@@ -32,30 +24,30 @@ function(add_board_target BOARD_TARGET)
   endif ()
 
   # Startup & Linker script
-  set(STARTUP_FILE_GNU ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/startup_${AT_FAMILY}.s)
+  set(STARTUP_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s)
   set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
-  set(STARTUP_FILE_IAR ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT_FAMILY}.s)
+  set(STARTUP_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s)
 
   if (NOT DEFINED LD_FILE_GNU)
-    set(LD_FILE_GNU ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
+    set(LD_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
   endif ()
   set(LD_FILE_Clang ${LD_FILE_GNU})
-  set(LD_FILE_IAR ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
+  set(LD_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
 
   add_library(${BOARD_TARGET} STATIC
-    ${AT_SDK_LIB}/cmsis/cm4/device_support/system_${AT_FAMILY}.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_gpio.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_misc.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_usart.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_acc.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_crm.c
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_gpio.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_misc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_usart.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_acc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_crm.c
     ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
     )
   target_include_directories(${BOARD_TARGET} PUBLIC
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
-    ${AT_SDK_LIB}/cmsis/cm4/core_support
-    ${AT_SDK_LIB}/cmsis/cm4/device_support
-    ${AT_SDK_LIB}/drivers/inc
+    ${AT32_SDK_LIB}/cmsis/cm4/core_support
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support
+    ${AT32_SDK_LIB}/drivers/inc
     )
   target_compile_definitions(${BOARD_TARGET} PUBLIC
     BOARD_TUD_RHPORT=0
@@ -97,8 +89,8 @@ function(family_configure_example TARGET RTOS)
     # BSP
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
-    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT_FAMILY}_clock.c
-    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT_FAMILY}_int.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_clock.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_int.c
     )
   target_include_directories(${TARGET} PUBLIC
     # family, hw, board
@@ -108,7 +100,7 @@ function(family_configure_example TARGET RTOS)
     )
 
   # Add TinyUSB target and port source
-  family_add_tinyusb(${TARGET} OPT_MCU_${AT_FAMILY_UPPER})
+  family_add_tinyusb(${TARGET} OPT_MCU_${AT32_FAMILY_UPPER})
   target_sources(${TARGET} PUBLIC
     ${TOP}/src/portable/synopsys/dwc2/dcd_dwc2.c
     ${TOP}/src/portable/synopsys/dwc2/hcd_dwc2.c
diff --git a/hw/bsp/at32f402_405/family.mk b/hw/bsp/at32f402_405/family.mk
index 91b5baffb..60a0f93e9 100644
--- a/hw/bsp/at32f402_405/family.mk
+++ b/hw/bsp/at32f402_405/family.mk
@@ -1,8 +1,5 @@
-# Submodules
-AT32F402_405_SDK = hw/mcu/artery/at32f402_405
-
-# AT32 SDK path
-AT32F402_405_SDK_SRC = $(AT32F402_405_SDK)/libraries
+AT32_FAMILY = at32f402_405
+AT32_SDK_LIB = hw/mcu/artery/${AT32_FAMILY}/libraries
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
@@ -13,6 +10,7 @@ CFLAGS_GCC += \
 
 CFLAGS += \
 	-DCFG_TUSB_MCU=OPT_MCU_AT32F402_405 \
+	-DBOARD_TUD_RHPORT=0 \
 	-DBOARD_TUD_MAX_SPEED=OPT_MODE_HIGH_SPEED
 
 LDFLAGS_GCC += \
@@ -22,23 +20,26 @@ SRC_C += \
 	src/portable/synopsys/dwc2/dcd_dwc2.c \
 	src/portable/synopsys/dwc2/hcd_dwc2.c \
 	src/portable/synopsys/dwc2/dwc2_common.c \
-	$(AT32F402_405_SDK_SRC)/drivers/src/at32f402_405_gpio.c \
-	$(AT32F402_405_SDK_SRC)/drivers/src/at32f402_405_misc.c \
-	$(AT32F402_405_SDK_SRC)/drivers/src/at32f402_405_usart.c \
-	$(AT32F402_405_SDK_SRC)/drivers/src/at32f402_405_crm.c \
-	$(AT32F402_405_SDK_SRC)/drivers/src/at32f402_405_acc.c \
-	$(AT32F402_405_SDK_SRC)/cmsis/cm4/device_support/system_at32f402_405.c
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_gpio.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_misc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_usart.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_crm.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_acc.c \
+	$(AT32_SDK_LIB)/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(AT32F402_405_SDK_SRC)/drivers/inc \
-	$(TOP)/$(AT32F402_405_SDK_SRC)/cmsis/cm4/core_support \
-	$(TOP)/$(AT32F402_405_SDK_SRC)/cmsis/cm4/device_support
+	$(TOP)/$(AT32_SDK_LIB)/drivers/inc \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/core_support \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/device_support
+
+SRC_S_GCC += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s
+SRC_S_IAR += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s
 
-SRC_S += \
-	$(FAMILY_PATH)/startup_at32f402_405.s
+LD_FILE_GCC ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld
+LD_FILE_IAR ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf
 
 # For freeRTOS port source
-#FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4
+FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4F
 
 flash: flash-atlink
diff --git a/hw/bsp/at32f402_405/startup_at32f402_405.s b/hw/bsp/at32f402_405/startup_at32f402_405.s
deleted file mode 100644
index 9b0dad9ef..000000000
--- a/hw/bsp/at32f402_405/startup_at32f402_405.s
+++ /dev/null
@@ -1,486 +0,0 @@
-/**
-  ******************************************************************************
-  * @file     startup_at32f402_405.s
-  * @brief    at32f402_405 devices vector table for gcc toolchain.
-  *           this module performs:
-  *           - set the initial sp
-  *           - set the initial pc == reset_handler,
-  *           - set the vector table entries with the exceptions isr address
-  *           - configure the clock system and the external sram to
-  *             be used as data memory (optional, to be enabled by user)
-  *           - branches to main in the c library (which eventually
-  *             calls main()).
-  *           after reset the cortex-m4 processor is in thread mode,
-  *           priority is privileged, and the stack is set to main.
-  ******************************************************************************
-  */
-
-  .syntax unified
-  .cpu cortex-m4
-  .fpu softvfp
-  .thumb
-
-.global  g_pfnVectors
-.global  Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word  _sidata
-/* start address for the .data section. defined in linker script */
-.word  _sdata
-/* end address for the .data section. defined in linker script */
-.word  _edata
-/* start address for the .bss section. defined in linker script */
-.word  _sbss
-/* end address for the .bss section. defined in linker script */
-.word  _ebss
-/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
-
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval None
-*/
-
-    .section  .text.Reset_Handler
-  .weak  Reset_Handler
-  .type  Reset_Handler, %function
-Reset_Handler:
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs  r1, #0
-  b  LoopCopyDataInit
-
-CopyDataInit:
-  ldr  r3, =_sidata
-  ldr  r3, [r3, r1]
-  str  r3, [r0, r1]
-  adds  r1, r1, #4
-
-LoopCopyDataInit:
-  ldr  r0, =_sdata
-  ldr  r3, =_edata
-  adds  r2, r0, r1
-  cmp  r2, r3
-  bcc  CopyDataInit
-  ldr  r2, =_sbss
-  b  LoopFillZerobss
-/* Zero fill the bss segment. */
-FillZerobss:
-  movs  r3, #0
-  str  r3, [r2], #4
-
-LoopFillZerobss:
-  ldr  r3, = _ebss
-  cmp  r2, r3
-  bcc  FillZerobss
-
-/* Call the clock system initialization function.*/
-  bl  SystemInit
-/* Call static constructors */
-  bl __libc_init_array
-/* Call the application's entry point.*/
-  bl  main
-  bx  lr
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- * @param  None
- * @retval None
-*/
-    .section  .text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-  b  Infinite_Loop
-  .size  Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex M3. Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-*******************************************************************************/
-   .section  .isr_vector,"a",%progbits
-  .type  g_pfnVectors, %object
-  .size  g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-  .word  _estack
-  .word  Reset_Handler
-  .word  NMI_Handler
-  .word  HardFault_Handler
-  .word  MemManage_Handler
-  .word  BusFault_Handler
-  .word  UsageFault_Handler
-  .word  0
-  .word  0
-  .word  0
-  .word  0
-  .word  SVC_Handler
-  .word  DebugMon_Handler
-  .word  0
-  .word  PendSV_Handler
-  .word  SysTick_Handler
-
-  /* External Interrupts */
-  .word  WWDT_IRQHandler                     /* Window Watchdog Timer                   */
-  .word  PVM_IRQHandler                      /* PVM through EXINT Line detect           */
-  .word  TAMP_STAMP_IRQHandler               /* Tamper and TimeStamps through the EXINT line */
-  .word  ERTC_WKUP_IRQHandler                /* ERTC Wakeup through the EXINT line      */
-  .word  FLASH_IRQHandler                    /* Flash                                   */
-  .word  CRM_IRQHandler                      /* CRM                                     */
-  .word  EXINT0_IRQHandler                   /* EXINT Line 0                            */
-  .word  EXINT1_IRQHandler                   /* EXINT Line 1                            */
-  .word  EXINT2_IRQHandler                   /* EXINT Line 2                            */
-  .word  EXINT3_IRQHandler                   /* EXINT Line 3                            */
-  .word  EXINT4_IRQHandler                   /* EXINT Line 4                            */
-  .word  DMA1_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA1_Channel2_IRQHandler            /* DMA1 Channel 2                          */
-  .word  DMA1_Channel3_IRQHandler            /* DMA1 Channel 3                          */
-  .word  DMA1_Channel4_IRQHandler            /* DMA1 Channel 4                          */
-  .word  DMA1_Channel5_IRQHandler            /* DMA1 Channel 5                          */
-  .word  DMA1_Channel6_IRQHandler            /* DMA1 Channel 6                          */
-  .word  DMA1_Channel7_IRQHandler            /* DMA1 Channel 7                          */
-  .word  ADC1_IRQHandler                     /* ADC1                                    */
-  .word  CAN1_TX_IRQHandler                  /* CAN1 TX                                 */
-  .word  CAN1_RX0_IRQHandler                 /* CAN1 RX0                                */
-  .word  CAN1_RX1_IRQHandler                 /* CAN1 RX1                                */
-  .word  CAN1_SE_IRQHandler                  /* CAN1 SE                                 */
-  .word  EXINT9_5_IRQHandler                 /* EXINT Line [9:5]                        */
-  .word  TMR1_BRK_TMR9_IRQHandler            /* TMR1 Brake and TMR9                     */
-  .word  TMR1_OVF_TMR10_IRQHandler           /* TMR1 Overflow and TMR10                 */
-  .word  TMR1_TRG_HALL_TMR11_IRQHandler      /* TMR1 Trigger and hall and TMR11         */
-  .word  TMR1_CH_IRQHandler                  /* TMR1 Channel                            */
-  .word  TMR2_GLOBAL_IRQHandler              /* TMR2                                    */
-  .word  TMR3_GLOBAL_IRQHandler              /* TMR3                                    */
-  .word  TMR4_GLOBAL_IRQHandler              /* TMR4                                    */
-  .word  I2C1_EVT_IRQHandler                 /* I2C1 Event                              */
-  .word  I2C1_ERR_IRQHandler                 /* I2C1 Error                              */
-  .word  I2C2_EVT_IRQHandler                 /* I2C2 Event                              */
-  .word  I2C2_ERR_IRQHandler                 /* I2C2 Error                              */
-  .word  SPI1_IRQHandler                     /* SPI1                                    */
-  .word  SPI2_IRQHandler                     /* SPI2                                    */
-  .word  USART1_IRQHandler                   /* USART1                                  */
-  .word  USART2_IRQHandler                   /* USART2                                  */
-  .word  USART3_IRQHandler                   /* USART3                                  */
-  .word  EXINT15_10_IRQHandler               /* EXINT Line [15:10]                      */
-  .word  ERTCAlarm_IRQHandler                /* ERTC Alarm through EXINT Line           */
-  .word  OTGFS1_WKUP_IRQHandler              /* OTGFS1 Wakeup from suspend              */
-  .word  0                                   /* Reserved                                */
-  .word  TMR13_GLOBAL_IRQHandler             /* TMR13                                   */
-  .word  TMR14_GLOBAL_IRQHandler             /* TMR14                                   */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  SPI3_IRQHandler                     /* SPI3                                    */
-  .word  USART4_IRQHandler                   /* USART4                                  */
-  .word  USART5_IRQHandler                   /* USART5                                  */
-  .word  TMR6_GLOBAL_IRQHandler              /* TMR6                                    */
-  .word  TMR7_GLOBAL_IRQHandler              /* TMR7                                    */
-  .word  DMA2_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA2_Channel2_IRQHandler            /* DMA1 Channel 2                          */
-  .word  DMA2_Channel3_IRQHandler            /* DMA1 Channel 3                          */
-  .word  DMA2_Channel4_IRQHandler            /* DMA1 Channel 4                          */
-  .word  DMA2_Channel5_IRQHandler            /* DMA1 Channel 5                          */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  OTGFS1_IRQHandler                   /* OTGFS1                                  */
-  .word  DMA2_Channel6_IRQHandler            /* DMA2 Channel 6                          */
-  .word  DMA2_Channel7_IRQHandler            /* DMA2 Channel 7                          */
-  .word  0                                   /* Reserved                                */
-  .word  USART6_IRQHandler                   /* USART6                                  */
-  .word  I2C3_EVT_IRQHandler                 /* I2C3 Event                              */
-  .word  I2C3_ERR_IRQHandler                 /* I2C3 Error                              */
-  .word  OTGHS_EP1_OUT_IRQHandler            /* OTGHS endpoint1 out                     */
-  .word  OTGHS_EP1_IN_IRQHandler             /* OTGHS endpoint1 in                      */
-  .word  OTGHS_WKUP_IRQHandler               /* OTGHS Wakeup from suspend               */
-  .word  OTGHS_IRQHandler                    /* OTGHS                                   */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  FPU_IRQHandler                      /* FPU                                     */
-  .word  UART7_IRQHandler                    /* UART7                                   */
-  .word  UART8_IRQHandler                    /* UART8                                   */
-  .word  0                                   /* Reserved                                */
-  .word  I2SF5_IRQHandler                    /* I2SF5                                   */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  QSPI1_IRQHandler                    /* QSPI1                                   */
-  .word  0                                   /* Reserved                                */
-  .word  DMAMUX_IRQHandler                   /* DMAMUX                                  */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  ACC_IRQHandler                      /* ACC                                     */
-
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-   .weak      NMI_Handler
-   .thumb_set NMI_Handler,Default_Handler
-
-   .weak      HardFault_Handler
-   .thumb_set HardFault_Handler,Default_Handler
-
-   .weak      MemManage_Handler
-   .thumb_set MemManage_Handler,Default_Handler
-
-   .weak      BusFault_Handler
-   .thumb_set BusFault_Handler,Default_Handler
-
-   .weak      UsageFault_Handler
-   .thumb_set UsageFault_Handler,Default_Handler
-
-   .weak      SVC_Handler
-   .thumb_set SVC_Handler,Default_Handler
-
-   .weak      DebugMon_Handler
-   .thumb_set DebugMon_Handler,Default_Handler
-
-   .weak      PendSV_Handler
-   .thumb_set PendSV_Handler,Default_Handler
-
-   .weak      SysTick_Handler
-   .thumb_set SysTick_Handler,Default_Handler
-
-   .weak      WWDT_IRQHandler
-   .thumb_set WWDT_IRQHandler,Default_Handler
-
-   .weak      PVM_IRQHandler
-   .thumb_set PVM_IRQHandler,Default_Handler
-
-   .weak      TAMP_STAMP_IRQHandler
-   .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
-
-   .weak      ERTC_WKUP_IRQHandler
-   .thumb_set ERTC_WKUP_IRQHandler,Default_Handler
-
-   .weak      FLASH_IRQHandler
-   .thumb_set FLASH_IRQHandler,Default_Handler
-
-   .weak      CRM_IRQHandler
-   .thumb_set CRM_IRQHandler,Default_Handler
-
-   .weak      EXINT0_IRQHandler
-   .thumb_set EXINT0_IRQHandler,Default_Handler
-
-   .weak      EXINT1_IRQHandler
-   .thumb_set EXINT1_IRQHandler,Default_Handler
-
-   .weak      EXINT2_IRQHandler
-   .thumb_set EXINT2_IRQHandler,Default_Handler
-
-   .weak      EXINT3_IRQHandler
-   .thumb_set EXINT3_IRQHandler,Default_Handler
-
-   .weak      EXINT4_IRQHandler
-   .thumb_set EXINT4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel1_IRQHandler
-   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel2_IRQHandler
-   .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel3_IRQHandler
-   .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel4_IRQHandler
-   .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel5_IRQHandler
-   .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel6_IRQHandler
-   .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel7_IRQHandler
-   .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
-
-   .weak      ADC1_IRQHandler
-   .thumb_set ADC1_IRQHandler,Default_Handler
-
-   .weak      CAN1_TX_IRQHandler
-   .thumb_set CAN1_TX_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX0_IRQHandler
-   .thumb_set CAN1_RX0_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX1_IRQHandler
-   .thumb_set CAN1_RX1_IRQHandler,Default_Handler
-
-   .weak      CAN1_SE_IRQHandler
-   .thumb_set CAN1_SE_IRQHandler,Default_Handler
-
-   .weak      EXINT9_5_IRQHandler
-   .thumb_set EXINT9_5_IRQHandler,Default_Handler
-
-   .weak      TMR1_BRK_TMR9_IRQHandler
-   .thumb_set TMR1_BRK_TMR9_IRQHandler,Default_Handler
-
-   .weak      TMR1_OVF_TMR10_IRQHandler
-   .thumb_set TMR1_OVF_TMR10_IRQHandler,Default_Handler
-
-   .weak      TMR1_TRG_HALL_TMR11_IRQHandler
-   .thumb_set TMR1_TRG_HALL_TMR11_IRQHandler,Default_Handler
-
-   .weak      TMR1_CH_IRQHandler
-   .thumb_set TMR1_CH_IRQHandler,Default_Handler
-
-   .weak      TMR2_GLOBAL_IRQHandler
-   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR3_GLOBAL_IRQHandler
-   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR4_GLOBAL_IRQHandler
-   .thumb_set TMR4_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      I2C1_EVT_IRQHandler
-   .thumb_set I2C1_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C1_ERR_IRQHandler
-   .thumb_set I2C1_ERR_IRQHandler,Default_Handler
-
-   .weak      I2C2_EVT_IRQHandler
-   .thumb_set I2C2_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C2_ERR_IRQHandler
-   .thumb_set I2C2_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI1_IRQHandler
-   .thumb_set SPI1_IRQHandler,Default_Handler
-
-   .weak      SPI2_IRQHandler
-   .thumb_set SPI2_IRQHandler,Default_Handler
-
-   .weak      USART1_IRQHandler
-   .thumb_set USART1_IRQHandler,Default_Handler
-
-   .weak      USART2_IRQHandler
-   .thumb_set USART2_IRQHandler,Default_Handler
-
-   .weak      USART3_IRQHandler
-   .thumb_set USART3_IRQHandler,Default_Handler
-
-   .weak      EXINT15_10_IRQHandler
-   .thumb_set EXINT15_10_IRQHandler,Default_Handler
-
-   .weak      ERTCAlarm_IRQHandler
-   .thumb_set ERTCAlarm_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_WKUP_IRQHandler
-   .thumb_set OTGFS1_WKUP_IRQHandler,Default_Handler
-
-   .weak      TMR13_GLOBAL_IRQHandler
-   .thumb_set TMR13_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR14_GLOBAL_IRQHandler
-   .thumb_set TMR14_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      SPI3_IRQHandler
-   .thumb_set SPI3_IRQHandler,Default_Handler
-
-   .weak      USART4_IRQHandler
-   .thumb_set USART4_IRQHandler,Default_Handler
-
-   .weak      USART5_IRQHandler
-   .thumb_set USART5_IRQHandler,Default_Handler
-
-   .weak      TMR6_GLOBAL_IRQHandler
-   .thumb_set TMR6_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR7_GLOBAL_IRQHandler
-   .thumb_set TMR7_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel1_IRQHandler
-   .thumb_set DMA2_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel2_IRQHandler
-   .thumb_set DMA2_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel3_IRQHandler
-   .thumb_set DMA2_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel4_IRQHandler
-   .thumb_set DMA2_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel5_IRQHandler
-   .thumb_set DMA2_Channel5_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_IRQHandler
-   .thumb_set OTGFS1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel6_IRQHandler
-   .thumb_set DMA2_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel7_IRQHandler
-   .thumb_set DMA2_Channel7_IRQHandler,Default_Handler
-
-   .weak      USART6_IRQHandler
-   .thumb_set USART6_IRQHandler,Default_Handler
-
-   .weak      I2C3_EVT_IRQHandler
-   .thumb_set I2C3_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C3_ERR_IRQHandler
-   .thumb_set I2C3_ERR_IRQHandler,Default_Handler
-
-   .weak      OTGHS_EP1_OUT_IRQHandler
-   .thumb_set OTGHS_EP1_OUT_IRQHandler,Default_Handler
-
-   .weak      OTGHS_EP1_IN_IRQHandler
-   .thumb_set OTGHS_EP1_IN_IRQHandler,Default_Handler
-
-   .weak      OTGHS_WKUP_IRQHandler
-   .thumb_set OTGHS_WKUP_IRQHandler,Default_Handler
-
-   .weak      OTGHS_IRQHandler
-   .thumb_set OTGHS_IRQHandler,Default_Handler
-
-   .weak      FPU_IRQHandler
-   .thumb_set FPU_IRQHandler,Default_Handler
-
-   .weak      UART7_IRQHandler
-   .thumb_set UART7_IRQHandler,Default_Handler
-
-   .weak      UART8_IRQHandler
-   .thumb_set UART8_IRQHandler,Default_Handler
-
-   .weak      I2SF5_IRQHandler
-   .thumb_set I2SF5_IRQHandler,Default_Handler
-
-   .weak      QSPI1_IRQHandler
-   .thumb_set QSPI1_IRQHandler,Default_Handler
-
-   .weak      DMAMUX_IRQHandler
-   .thumb_set DMAMUX_IRQHandler ,Default_Handler
-
-   .weak      ACC_IRQHandler
-   .thumb_set ACC_IRQHandler,Default_Handler
diff --git a/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/AT32F403AxG_FLASH.ld b/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/AT32F403AxG_FLASH.ld
deleted file mode 100644
index c3d8aca80..000000000
--- a/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/AT32F403AxG_FLASH.ld
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : AT32F403AxG_FLASH.ld
-**
-**  Abstract    : Linker script for AT32F403AxG Device with
-**                1000KByte FLASH, 96KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**  Target      : Artery Tek AT32
-**
-**  Environment : Arm gcc toolchain
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20018000;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 1024K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 96K
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data :
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss section */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(8);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(8);
-  } >RAM
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}
diff --git a/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.cmake b/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.cmake
index 72ace807a..25c9558f9 100644
--- a/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.cmake
+++ b/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.cmake
@@ -1,4 +1,6 @@
 set(MCU_VARIANT AT32F403ACGU7)
+set(MCU_LINKER_NAME AT32F403AxG)
+
 set(JLINK_DEVICE ${MCU_VARIANT})
 
 function(update_board TARGET)
diff --git a/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.mk b/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.mk
index e309c86bb..9bb6843aa 100644
--- a/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.mk
+++ b/hw/bsp/at32f403a_407/boards/AT_START_F403A_407/board.mk
@@ -1,5 +1,7 @@
-JLINK_DEVICE = at32f403acgu7
-LD_FILE = $(BOARD_PATH)/AT32F403AxG_FLASH.ld
+MCU_VARIANT = AT32F403ACGU7
+MCU_LINKER_NAME = AT32F403AxG
+
+JLINK_DEVICE = ${MCU_VARIANT}
 
 CFLAGS += \
-  -DAT32F403ACGU7
+  -D${MCU_VARIANT}
diff --git a/hw/bsp/at32f403a_407/family.cmake b/hw/bsp/at32f403a_407/family.cmake
index 19b392015..ae4037088 100644
--- a/hw/bsp/at32f403a_407/family.cmake
+++ b/hw/bsp/at32f403a_407/family.cmake
@@ -1,9 +1,9 @@
 include_guard()
 
-set(AT_FAMILY at32f403a_407)
-set(AT_SDK_LIB ${TOP}/hw/mcu/artery/${AT_FAMILY}/libraries)
+set(AT32_FAMILY at32f403a_407)
+set(AT32_SDK_LIB ${TOP}/hw/mcu/artery/${AT32_FAMILY}/libraries)
 
-string(TOUPPER ${AT_FAMILY} AT_FAMILY_UPPER)
+string(TOUPPER ${AT32_FAMILY} AT32_FAMILY_UPPER)
 
 # include board specific
 include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
@@ -12,15 +12,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 set(CMAKE_SYSTEM_CPU cortex-m4 CACHE INTERNAL "System Processor")
 set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
-set(FAMILY_MCUS ${AT_FAMILY_UPPER} CACHE INTERNAL "")
-
-# extract variant linker name
-string(LENGTH ${MCU_VARIANT} MCU_VARIANT_LEN)
-math(EXPR MCU_FLASH_CODE_INDEX "${MCU_VARIANT_LEN} - 3")
-math(EXPR MCU_VARIANT_PREFIX_LEN "${MCU_FLASH_CODE_INDEX} - 1")
-string(SUBSTRING ${MCU_VARIANT} ${MCU_FLASH_CODE_INDEX} 1 MCU_FLASH_CODE)
-string(SUBSTRING ${MCU_VARIANT} 0 ${MCU_VARIANT_PREFIX_LEN} MCU_VARIANT_PREFIX)
-set(MCU_LINKER_NAME ${MCU_VARIANT_PREFIX}x${MCU_FLASH_CODE})
+set(FAMILY_MCUS ${AT32_FAMILY_UPPER} CACHE INTERNAL "")
 
 #------------------------------------
 # BOARD_TARGET
@@ -32,30 +24,30 @@ function(add_board_target BOARD_TARGET)
   endif ()
 
   # Startup & Linker script
-  set(STARTUP_FILE_GNU ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/startup_${AT_FAMILY}.s)
+  set(STARTUP_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s)
   set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
-  set(STARTUP_FILE_IAR ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT_FAMILY}.s)
+  set(STARTUP_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s)
 
   if (NOT DEFINED LD_FILE_GNU)
-    set(LD_FILE_GNU ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
+    set(LD_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
   endif ()
   set(LD_FILE_Clang ${LD_FILE_GNU})
-  set(LD_FILE_IAR ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
+  set(LD_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
 
   add_library(${BOARD_TARGET} STATIC
-    ${AT_SDK_LIB}/cmsis/cm4/device_support/system_${AT_FAMILY}.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_gpio.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_misc.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_usart.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_acc.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_crm.c
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_gpio.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_misc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_usart.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_acc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_crm.c
     ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
     )
   target_include_directories(${BOARD_TARGET} PUBLIC
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
-    ${AT_SDK_LIB}/cmsis/cm4/core_support
-    ${AT_SDK_LIB}/cmsis/cm4/device_support
-    ${AT_SDK_LIB}/drivers/inc
+    ${AT32_SDK_LIB}/cmsis/cm4/core_support
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support
+    ${AT32_SDK_LIB}/drivers/inc
     )
 
   update_board(${BOARD_TARGET})
@@ -93,8 +85,8 @@ function(family_configure_example TARGET RTOS)
     # BSP
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
-    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT_FAMILY}_clock.c
-    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT_FAMILY}_int.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_clock.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_int.c
     )
   target_include_directories(${TARGET} PUBLIC
     # family, hw, board
@@ -104,7 +96,7 @@ function(family_configure_example TARGET RTOS)
     )
 
   # Add TinyUSB target and port source
-  family_add_tinyusb(${TARGET} OPT_MCU_${AT_FAMILY_UPPER})
+  family_add_tinyusb(${TARGET} OPT_MCU_${AT32_FAMILY_UPPER})
   target_sources(${TARGET} PUBLIC
     ${TOP}/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
     )
diff --git a/hw/bsp/at32f403a_407/family.mk b/hw/bsp/at32f403a_407/family.mk
index b3210a6d4..c82d402ca 100644
--- a/hw/bsp/at32f403a_407/family.mk
+++ b/hw/bsp/at32f403a_407/family.mk
@@ -1,8 +1,5 @@
-# Submodules
-AT32F403A_407_SDK = hw/mcu/artery/at32f403a_407
-
-# AT32 SDK path
-AT32F403A_407_SDK_SRC = $(AT32F403A_407_SDK)/libraries
+AT32_FAMILY = at32f403a_407
+AT32_SDK_LIB = hw/mcu/artery/${AT32_FAMILY}/libraries
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
@@ -19,21 +16,24 @@ LDFLAGS_GCC += \
 
 SRC_C += \
 	src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c \
-	$(AT32F403A_407_SDK_SRC)/drivers/src/at32f403a_407_gpio.c \
-	$(AT32F403A_407_SDK_SRC)/drivers/src/at32f403a_407_misc.c \
-	$(AT32F403A_407_SDK_SRC)/drivers/src/at32f403a_407_usart.c \
-	$(AT32F403A_407_SDK_SRC)/drivers/src/at32f403a_407_acc.c \
-	$(AT32F403A_407_SDK_SRC)/drivers/src/at32f403a_407_crm.c \
-	$(AT32F403A_407_SDK_SRC)/cmsis/cm4/device_support/system_at32f403a_407.c
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_gpio.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_misc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_usart.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_acc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_crm.c \
+	$(AT32_SDK_LIB)/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(AT32F403A_407_SDK_SRC)/drivers/inc \
-	$(TOP)/$(AT32F403A_407_SDK_SRC)/cmsis/cm4/core_support \
-	$(TOP)/$(AT32F403A_407_SDK_SRC)/cmsis/cm4/device_support
+	$(TOP)/$(AT32_SDK_LIB)/drivers/inc \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/core_support \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/device_support
+
+SRC_S_GCC += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s
+SRC_S_IAR += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s
 
-SRC_S += \
-	$(FAMILY_PATH)/startup_at32f403a_407.s
+LD_FILE_GCC ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld
+LD_FILE_IAR ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf
 
 # For freeRTOS port source
 FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4F
diff --git a/hw/bsp/at32f403a_407/startup_at32f403a_407.s b/hw/bsp/at32f403a_407/startup_at32f403a_407.s
deleted file mode 100644
index 3b81f2043..000000000
--- a/hw/bsp/at32f403a_407/startup_at32f403a_407.s
+++ /dev/null
@@ -1,478 +0,0 @@
-/**
-  ******************************************************************************
-  * @file     startup_at32f403a_407.s
-  * @brief    at32f403a_407xx devices vector table for gcc toolchain.
-  *           this module performs:
-  *           - set the initial sp
-  *           - set the initial pc == reset_handler,
-  *           - set the vector table entries with the exceptions isr address
-  *           - configure the clock system and the external sram to
-  *             be used as data memory (optional, to be enabled by user)
-  *           - branches to main in the c library (which eventually
-  *             calls main()).
-  *           after reset the cortex-m4 processor is in thread mode,
-  *           priority is privileged, and the stack is set to main.
-  ******************************************************************************
-  */
-
-  .syntax unified
-  .cpu cortex-m4
-  .fpu softvfp
-  .thumb
-
-.global  g_pfnVectors
-.global  Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word  _sidata
-/* start address for the .data section. defined in linker script */
-.word  _sdata
-/* end address for the .data section. defined in linker script */
-.word  _edata
-/* start address for the .bss section. defined in linker script */
-.word  _sbss
-/* end address for the .bss section. defined in linker script */
-.word  _ebss
-/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
-
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval None
-*/
-
-    .section  .text.Reset_Handler
-  .weak  Reset_Handler
-  .type  Reset_Handler, %function
-Reset_Handler:
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs  r1, #0
-  b  LoopCopyDataInit
-
-CopyDataInit:
-  ldr  r3, =_sidata
-  ldr  r3, [r3, r1]
-  str  r3, [r0, r1]
-  adds  r1, r1, #4
-
-LoopCopyDataInit:
-  ldr  r0, =_sdata
-  ldr  r3, =_edata
-  adds  r2, r0, r1
-  cmp  r2, r3
-  bcc  CopyDataInit
-  ldr  r2, =_sbss
-  b  LoopFillZerobss
-/* Zero fill the bss segment. */
-FillZerobss:
-  movs  r3, #0
-  str  r3, [r2], #4
-
-LoopFillZerobss:
-  ldr  r3, = _ebss
-  cmp  r2, r3
-  bcc  FillZerobss
-
-/* Call the clock system initialization function.*/
-  bl  SystemInit
-/* Call static constructors */
-  bl __libc_init_array
-/* Call the application's entry point.*/
-  bl  main
-  bx  lr
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- * @param  None
- * @retval None
-*/
-    .section  .text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-  b  Infinite_Loop
-  .size  Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex M3. Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-*******************************************************************************/
-   .section  .isr_vector,"a",%progbits
-  .type  g_pfnVectors, %object
-  .size  g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-  .word  _estack
-  .word  Reset_Handler
-  .word  NMI_Handler
-  .word  HardFault_Handler
-  .word  MemManage_Handler
-  .word  BusFault_Handler
-  .word  UsageFault_Handler
-  .word  0
-  .word  0
-  .word  0
-  .word  0
-  .word  SVC_Handler
-  .word  DebugMon_Handler
-  .word  0
-  .word  PendSV_Handler
-  .word  SysTick_Handler
-
-  /* External Interrupts */
-  .word  WWDT_IRQHandler                     /* Window Watchdog Timer                   */
-  .word  PVM_IRQHandler                      /* PVM through EXINT Line detect           */
-  .word  TAMPER_IRQHandler                   /* Tamper                                  */
-  .word  RTC_IRQHandler                      /* RTC                                     */
-  .word  FLASH_IRQHandler                    /* Flash                                   */
-  .word  CRM_IRQHandler                      /* CRM                                     */
-  .word  EXINT0_IRQHandler                   /* EXINT Line 0                            */
-  .word  EXINT1_IRQHandler                   /* EXINT Line 1                            */
-  .word  EXINT2_IRQHandler                   /* EXINT Line 2                            */
-  .word  EXINT3_IRQHandler                   /* EXINT Line 3                            */
-  .word  EXINT4_IRQHandler                   /* EXINT Line 4                            */
-  .word  DMA1_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA1_Channel2_IRQHandler            /* DMA1 Channel 2                          */
-  .word  DMA1_Channel3_IRQHandler            /* DMA1 Channel 3                          */
-  .word  DMA1_Channel4_IRQHandler            /* DMA1 Channel 4                          */
-  .word  DMA1_Channel5_IRQHandler            /* DMA1 Channel 5                          */
-  .word  DMA1_Channel6_IRQHandler            /* DMA1 Channel 6                          */
-  .word  DMA1_Channel7_IRQHandler            /* DMA1 Channel 7                          */
-  .word  ADC1_2_IRQHandler                   /* ADC1 & ADC2                             */
-  .word  USBFS_H_CAN1_TX_IRQHandler          /* USB High Priority or CAN1 TX            */
-  .word  USBFS_L_CAN1_RX0_IRQHandler         /* USB Low  Priority or CAN1 RX0           */
-  .word  CAN1_RX1_IRQHandler                 /* CAN1 RX1                                */
-  .word  CAN1_SE_IRQHandler                  /* CAN1 SE                                 */
-  .word  EXINT9_5_IRQHandler                 /* EXINT Line [9:5]                        */
-  .word  TMR1_BRK_TMR9_IRQHandler            /* TMR1 Brake and TMR9                     */
-  .word  TMR1_OVF_TMR10_IRQHandler           /* TMR1 Overflow and TMR10                 */
-  .word  TMR1_TRG_HALL_TMR11_IRQHandler      /* TMR1 Trigger and hall and TMR11         */
-  .word  TMR1_CH_IRQHandler                  /* TMR1 Channel                            */
-  .word  TMR2_GLOBAL_IRQHandler              /* TMR2                                    */
-  .word  TMR3_GLOBAL_IRQHandler              /* TMR3                                    */
-  .word  TMR4_GLOBAL_IRQHandler              /* TMR4                                    */
-  .word  I2C1_EVT_IRQHandler                 /* I2C1 Event                              */
-  .word  I2C1_ERR_IRQHandler                 /* I2C1 Error                              */
-  .word  I2C2_EVT_IRQHandler                 /* I2C2 Event                              */
-  .word  I2C2_ERR_IRQHandler                 /* I2C2 Error                              */
-  .word  SPI1_IRQHandler                     /* SPI1                                    */
-  .word  SPI2_I2S2EXT_IRQHandler             /* SPI2 & I2S2EXT                          */
-  .word  USART1_IRQHandler                   /* USART1                                  */
-  .word  USART2_IRQHandler                   /* USART2                                  */
-  .word  USART3_IRQHandler                   /* USART3                                  */
-  .word  EXINT15_10_IRQHandler               /* EXINT Line [15:10]                      */
-  .word  RTCAlarm_IRQHandler                 /* RTC Alarm through EXINT Line            */
-  .word  USBFSWakeUp_IRQHandler              /* USB Wakeup from suspend                 */
-  .word  TMR8_BRK_TMR12_IRQHandler           /* TMR8 Brake and TMR12                    */
-  .word  TMR8_OVF_TMR13_IRQHandler           /* TMR8 Overflow and TMR13                 */
-  .word  TMR8_TRG_HALL_TMR14_IRQHandler      /* TMR8 Trigger and hall and TMR14         */
-  .word  TMR8_CH_IRQHandler                  /* TMR8 Channel                            */
-  .word  ADC3_IRQHandler                     /* ADC3                                    */
-  .word  XMC_IRQHandler                      /* XMC                                     */
-  .word  SDIO1_IRQHandler                    /* SDIO1                                   */
-  .word  TMR5_GLOBAL_IRQHandler              /* TMR5                                    */
-  .word  SPI3_I2S3EXT_IRQHandler             /* SPI3 & I2S3EXT                          */
-  .word  UART4_IRQHandler                    /* UART4                                   */
-  .word  UART5_IRQHandler                    /* UART5                                   */
-  .word  TMR6_GLOBAL_IRQHandler              /* TMR6                                    */
-  .word  TMR7_GLOBAL_IRQHandler              /* TMR7                                    */
-  .word  DMA2_Channel1_IRQHandler            /* DMA2 Channel1                           */
-  .word  DMA2_Channel2_IRQHandler            /* DMA2 Channel2                           */
-  .word  DMA2_Channel3_IRQHandler            /* DMA2 Channel3                           */
-  .word  DMA2_Channel4_5_IRQHandler          /* DMA2 Channel4 & Channel5                */
-  .word  SDIO2_IRQHandler                    /* SDIO2                                   */
-  .word  I2C3_EVT_IRQHandler                 /* I2C3 Event                              */
-  .word  I2C3_ERR_IRQHandler                 /* I2C3 Error                              */
-  .word  SPI4_IRQHandler                     /* SPI4                                    */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  CAN2_TX_IRQHandler                  /* CAN2 TX                                 */
-  .word  CAN2_RX0_IRQHandler                 /* CAN2 RX0                                */
-  .word  CAN2_RX1_IRQHandler                 /* CAN2 RX1                                */
-  .word  CAN2_SE_IRQHandler                  /* CAN2 SE                                 */
-  .word  ACC_IRQHandler                      /* ACC                                     */
-  .word  USBFS_MAPH_IRQHandler               /* USB Map HP                              */
-  .word  USBFS_MAPL_IRQHandler               /* USB Map LP                              */
-  .word  DMA2_Channel6_7_IRQHandler          /* DMA2 Channel6 & Channel7                */
-  .word  USART6_IRQHandler                   /* USART6                                  */
-  .word  UART7_IRQHandler                    /* UART7                                   */
-  .word  UART8_IRQHandler                    /* UART8                                   */
-  .word  EMAC_IRQHandler                     /* EMAC                                    */
-  .word  EMAC_WKUP_IRQHandler                /* EMAC Wakeup                             */
-
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-   .weak      NMI_Handler
-   .thumb_set NMI_Handler,Default_Handler
-
-   .weak      HardFault_Handler
-   .thumb_set HardFault_Handler,Default_Handler
-
-   .weak      MemManage_Handler
-   .thumb_set MemManage_Handler,Default_Handler
-
-   .weak      BusFault_Handler
-   .thumb_set BusFault_Handler,Default_Handler
-
-   .weak      UsageFault_Handler
-   .thumb_set UsageFault_Handler,Default_Handler
-
-   .weak      SVC_Handler
-   .thumb_set SVC_Handler,Default_Handler
-
-   .weak      DebugMon_Handler
-   .thumb_set DebugMon_Handler,Default_Handler
-
-   .weak      PendSV_Handler
-   .thumb_set PendSV_Handler,Default_Handler
-
-   .weak      SysTick_Handler
-   .thumb_set SysTick_Handler,Default_Handler
-
-   .weak      WWDT_IRQHandler
-   .thumb_set WWDT_IRQHandler,Default_Handler
-
-   .weak      PVM_IRQHandler
-   .thumb_set PVM_IRQHandler,Default_Handler
-
-   .weak      TAMPER_IRQHandler
-   .thumb_set TAMPER_IRQHandler,Default_Handler
-
-   .weak      RTC_IRQHandler
-   .thumb_set RTC_IRQHandler,Default_Handler
-
-   .weak      FLASH_IRQHandler
-   .thumb_set FLASH_IRQHandler,Default_Handler
-
-   .weak      CRM_IRQHandler
-   .thumb_set CRM_IRQHandler,Default_Handler
-
-   .weak      EXINT0_IRQHandler
-   .thumb_set EXINT0_IRQHandler,Default_Handler
-
-   .weak      EXINT1_IRQHandler
-   .thumb_set EXINT1_IRQHandler,Default_Handler
-
-   .weak      EXINT2_IRQHandler
-   .thumb_set EXINT2_IRQHandler,Default_Handler
-
-   .weak      EXINT3_IRQHandler
-   .thumb_set EXINT3_IRQHandler,Default_Handler
-
-   .weak      EXINT4_IRQHandler
-   .thumb_set EXINT4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel1_IRQHandler
-   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel2_IRQHandler
-   .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel3_IRQHandler
-   .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel4_IRQHandler
-   .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel5_IRQHandler
-   .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel6_IRQHandler
-   .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel7_IRQHandler
-   .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
-
-   .weak      ADC1_2_IRQHandler
-   .thumb_set ADC1_2_IRQHandler,Default_Handler
-
-   .weak      USBFS_H_CAN1_TX_IRQHandler
-   .thumb_set USBFS_H_CAN1_TX_IRQHandler,Default_Handler
-
-   .weak      USBFS_L_CAN1_RX0_IRQHandler
-   .thumb_set USBFS_L_CAN1_RX0_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX1_IRQHandler
-   .thumb_set CAN1_RX1_IRQHandler,Default_Handler
-
-   .weak      CAN1_SE_IRQHandler
-   .thumb_set CAN1_SE_IRQHandler,Default_Handler
-
-   .weak      EXINT9_5_IRQHandler
-   .thumb_set EXINT9_5_IRQHandler,Default_Handler
-
-   .weak      TMR1_BRK_TMR9_IRQHandler
-   .thumb_set TMR1_BRK_TMR9_IRQHandler,Default_Handler
-
-   .weak      TMR1_OVF_TMR10_IRQHandler
-   .thumb_set TMR1_OVF_TMR10_IRQHandler,Default_Handler
-
-   .weak      TMR1_TRG_HALL_TMR11_IRQHandler
-   .thumb_set TMR1_TRG_HALL_TMR11_IRQHandler,Default_Handler
-
-   .weak      TMR1_CH_IRQHandler
-   .thumb_set TMR1_CH_IRQHandler,Default_Handler
-
-   .weak      TMR2_GLOBAL_IRQHandler
-   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR3_GLOBAL_IRQHandler
-   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR4_GLOBAL_IRQHandler
-   .thumb_set TMR4_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      I2C1_EVT_IRQHandler
-   .thumb_set I2C1_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C1_ERR_IRQHandler
-   .thumb_set I2C1_ERR_IRQHandler,Default_Handler
-
-   .weak      I2C2_EVT_IRQHandler
-   .thumb_set I2C2_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C2_ERR_IRQHandler
-   .thumb_set I2C2_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI1_IRQHandler
-   .thumb_set SPI1_IRQHandler,Default_Handler
-
-   .weak      SPI2_I2S2EXT_IRQHandler
-   .thumb_set SPI2_I2S2EXT_IRQHandler,Default_Handler
-
-   .weak      USART1_IRQHandler
-   .thumb_set USART1_IRQHandler,Default_Handler
-
-   .weak      USART2_IRQHandler
-   .thumb_set USART2_IRQHandler,Default_Handler
-
-   .weak      USART3_IRQHandler
-   .thumb_set USART3_IRQHandler,Default_Handler
-
-   .weak      EXINT15_10_IRQHandler
-   .thumb_set EXINT15_10_IRQHandler,Default_Handler
-
-   .weak      RTCAlarm_IRQHandler
-   .thumb_set RTCAlarm_IRQHandler,Default_Handler
-
-   .weak      USBFSWakeUp_IRQHandler
-   .thumb_set USBFSWakeUp_IRQHandler,Default_Handler
-
-   .weak      TMR8_BRK_TMR12_IRQHandler
-   .thumb_set TMR8_BRK_TMR12_IRQHandler,Default_Handler
-
-   .weak      TMR8_OVF_TMR13_IRQHandler
-   .thumb_set TMR8_OVF_TMR13_IRQHandler,Default_Handler
-
-   .weak      TMR8_TRG_HALL_TMR14_IRQHandler
-   .thumb_set TMR8_TRG_HALL_TMR14_IRQHandler,Default_Handler
-
-   .weak      TMR8_CH_IRQHandler
-   .thumb_set TMR8_CH_IRQHandler,Default_Handler
-
-   .weak      ADC3_IRQHandler
-   .thumb_set ADC3_IRQHandler,Default_Handler
-
-   .weak      XMC_IRQHandler
-   .thumb_set XMC_IRQHandler,Default_Handler
-
-   .weak      SDIO1_IRQHandler
-   .thumb_set SDIO1_IRQHandler,Default_Handler
-
-   .weak      TMR5_GLOBAL_IRQHandler
-   .thumb_set TMR5_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      SPI3_I2S3EXT_IRQHandler
-   .thumb_set SPI3_I2S3EXT_IRQHandler,Default_Handler
-
-   .weak      UART4_IRQHandler
-   .thumb_set UART4_IRQHandler,Default_Handler
-
-   .weak      UART5_IRQHandler
-   .thumb_set UART5_IRQHandler,Default_Handler
-
-   .weak      TMR6_GLOBAL_IRQHandler
-   .thumb_set TMR6_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR7_GLOBAL_IRQHandler
-   .thumb_set TMR7_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel1_IRQHandler
-   .thumb_set DMA2_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel2_IRQHandler
-   .thumb_set DMA2_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel3_IRQHandler
-   .thumb_set DMA2_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel4_5_IRQHandler
-   .thumb_set DMA2_Channel4_5_IRQHandler,Default_Handler
-
-   .weak      SDIO2_IRQHandler
-   .thumb_set SDIO2_IRQHandler,Default_Handler
-
-   .weak      I2C3_EVT_IRQHandler
-   .thumb_set I2C3_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C3_ERR_IRQHandler
-   .thumb_set I2C3_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI4_IRQHandler
-   .thumb_set SPI4_IRQHandler,Default_Handler
-
-   .weak      CAN2_TX_IRQHandler
-   .thumb_set CAN2_TX_IRQHandler,Default_Handler
-
-   .weak      CAN2_RX0_IRQHandler
-   .thumb_set CAN2_RX0_IRQHandler ,Default_Handler
-
-   .weak      CAN2_RX1_IRQHandler
-   .thumb_set CAN2_RX1_IRQHandler ,Default_Handler
-
-   .weak      CAN2_SE_IRQHandler
-   .thumb_set CAN2_SE_IRQHandler,Default_Handler
-
-   .weak      ACC_IRQHandler
-   .thumb_set ACC_IRQHandler,Default_Handler
-
-   .weak      USBFS_MAPH_IRQHandler
-   .thumb_set USBFS_MAPH_IRQHandler,Default_Handler
-
-   .weak      USBFS_MAPL_IRQHandler
-   .thumb_set USBFS_MAPL_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel6_7_IRQHandler
-   .thumb_set DMA2_Channel6_7_IRQHandler,Default_Handler
-
-   .weak      USART6_IRQHandler
-   .thumb_set USART6_IRQHandler,Default_Handler
-
-   .weak      UART7_IRQHandler
-   .thumb_set UART7_IRQHandler,Default_Handler
-
-   .weak      UART8_IRQHandler
-   .thumb_set UART8_IRQHandler,Default_Handler
-
-   .weak      EMAC_IRQHandler
-   .thumb_set EMAC_IRQHandler,Default_Handler
-
-   .weak      EMAC_WKUP_IRQHandler
-   .thumb_set EMAC_WKUP_IRQHandler,Default_Handler
diff --git a/hw/bsp/at32f413/boards/AT_START_F413/AT32F413xC_FLASH.ld b/hw/bsp/at32f413/boards/AT_START_F413/AT32F413xC_FLASH.ld
deleted file mode 100644
index 9d95a7d3d..000000000
--- a/hw/bsp/at32f413/boards/AT_START_F413/AT32F413xC_FLASH.ld
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : AT32F413xC_FLASH.ld
-**
-**  Abstract    : Linker script for AT32F413xC Device with
-**                256KByte FLASH, 32KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**  Target      : Artery Tek AT32
-**
-**  Environment : Arm gcc toolchain
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20008000;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 256K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 32K
-SPIM (rx)       : ORIGIN = 0x08400000, LENGTH = 16384K
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data :
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  _spim_init_base = LOADADDR(.spim);
-  _spim_init_length = SIZEOF(.spim);
-
-  .spim :
-  {
-    . = ALIGN(4);
-    _spim_start = .;        /* create a global symbol at spim start */
-    *(.spim)                /* .spim sections */
-    *(.spim*)               /* .spim* sections */
-    . = ALIGN(4);
-    _spim_end = .;         /* define a global symbols at end of spim */
-  } >SPIM
-
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss section */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(8);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(8);
-  } >RAM
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}
diff --git a/hw/bsp/at32f413/boards/AT_START_F413/board.cmake b/hw/bsp/at32f413/boards/AT_START_F413/board.cmake
new file mode 100644
index 000000000..0a9cc4bbd
--- /dev/null
+++ b/hw/bsp/at32f413/boards/AT_START_F413/board.cmake
@@ -0,0 +1,8 @@
+set(MCU_VARIANT AT32F413RCT7)
+set(MCU_LINKER_NAME AT32F413xC)
+
+set(JLINK_DEVICE ${MCU_VARIANT})
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC ${MCU_VARIANT})
+endfunction()
diff --git a/hw/bsp/at32f413/boards/AT_START_F413/board.mk b/hw/bsp/at32f413/boards/AT_START_F413/board.mk
index 28351265d..30fc6b9af 100644
--- a/hw/bsp/at32f413/boards/AT_START_F413/board.mk
+++ b/hw/bsp/at32f413/boards/AT_START_F413/board.mk
@@ -1,4 +1,8 @@
-LD_FILE = $(BOARD_PATH)/AT32F413xC_FLASH.ld
+MCU_VARIANT = AT32F413RCT7
+MCU_LINKER_NAME = AT32F413xC
+
+JLINK_DEVICE = ${MCU_VARIANT}
 
 CFLAGS += \
-  -DAT32F413RCT7
+  -D${MCU_VARIANT} \
+  -DCFG_EXAMPLE_VIDEO_READONLY
diff --git a/hw/bsp/at32f413/family.c b/hw/bsp/at32f413/family.c
index ffaf892e7..6e12c6015 100644
--- a/hw/bsp/at32f413/family.c
+++ b/hw/bsp/at32f413/family.c
@@ -25,8 +25,8 @@
  */
 
 #include "at32f413_clock.h"
-#include "bsp/board_api.h"
 #include "board.h"
+#include "bsp/board_api.h"
 
 void usb_clock48m_select(usb_clk48_s clk_s);
 void uart_print_init(uint32_t baudrate);
@@ -50,8 +50,7 @@ void USBFSWakeUp_IRQHandler(void) {
   tud_int_handler(0);
 }
 
-void board_init(void)
-{
+void board_init(void) {
   system_clock_config();
 
   /* config nvic priority group */
@@ -82,7 +81,7 @@ void board_init(void)
   gpio_default_para_init(&gpio_led_init_struct);
   /* configure the led gpio */
   gpio_led_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_led_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_led_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_led_init_struct.gpio_mode = GPIO_MODE_OUTPUT;
   gpio_led_init_struct.gpio_pins = LED_PIN;
   gpio_led_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -114,10 +113,8 @@ void board_init(void)
   * @param  clk_s:USB_CLK_HICK, USB_CLK_HEXT
   * @retval none
   */
-void usb_clock48m_select(usb_clk48_s clk_s)
-{
-  if(clk_s == USB_CLK_HICK)
-  {
+void usb_clock48m_select(usb_clk48_s clk_s) {
+  if (clk_s == USB_CLK_HICK) {
     crm_usb_clock_source_select(CRM_USB_CLOCK_SOURCE_HICK);
 
     /* enable the acc calibration ready interrupt */
@@ -130,11 +127,8 @@ void usb_clock48m_select(usb_clk48_s clk_s)
 
     /* open acc calibration */
     acc_calibration_mode_enable(ACC_CAL_HICKTRIM, TRUE);
-  }
-  else
-  {
-    switch(system_core_clock)
-    {
+  } else {
+    switch (system_core_clock) {
       /* 48MHz */
       case 48000000:
         crm_usb_clock_div_set(CRM_USB_DIV_1);
@@ -176,8 +170,7 @@ void usb_clock48m_select(usb_clk48_s clk_s)
   }
 }
 
-void uart_print_init(uint32_t baudrate)
-{
+void uart_print_init(uint32_t baudrate) {
   gpio_init_type gpio_init_struct;
   /* enable the uart and gpio clock */
   crm_periph_clock_enable(PRINT_UART_CRM_CLK, TRUE);
@@ -185,7 +178,7 @@ void uart_print_init(uint32_t baudrate)
   gpio_default_para_init(&gpio_init_struct);
   /* configure the uart tx pin */
   gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
   gpio_init_struct.gpio_pins = PRINT_UART_TX_PIN;
   gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -206,8 +199,8 @@ uint32_t board_button_read(void) {
 
 size_t board_get_unique_id(uint8_t id[], size_t max_len) {
   (void) max_len;
-  volatile uint32_t * at32_uuid = ((volatile uint32_t*)0x1FFFF7E8);
-  uint32_t* id32 = (uint32_t*) (uintptr_t) id;
+  volatile uint32_t *at32_uuid = ((volatile uint32_t *) 0x1FFFF7E8);
+  uint32_t *id32 = (uint32_t *) (uintptr_t) id;
   uint8_t const len = 12;
 
   id32[0] = at32_uuid[0];
@@ -223,61 +216,57 @@ int board_uart_read(uint8_t *buf, int len) {
   return 0;
 }
 
-int board_uart_write(void const *buf, int len)
-{
-  #if CFG_TUSB_OS == OPT_OS_NONE
-    int txsize = len;
-    u16 timeout = 0xffff;
-    while (txsize--)
-    {
-      while(usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET)
-      {
-        timeout--;
-        if(timeout == 0)
-        {
-          return 0;
-        }
+int board_uart_write(void const *buf, int len) {
+#if CFG_TUSB_OS == OPT_OS_NONE
+  int txsize = len;
+  u16 timeout = 0xffff;
+  while (txsize--) {
+    while (usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET) {
+      timeout--;
+      if (timeout == 0) {
+        return 0;
       }
-      PRINT_UART->dt = (*((uint8_t const *)buf) & 0x01FF);
-      buf++;
     }
-    return len;
-  #else
-    (void) buf;
-    (void) len;
-    return 0;
-  #endif
+    PRINT_UART->dt = (*((uint8_t const *) buf) & 0x01FF);
+    buf++;
+  }
+  return len;
+#else
+  (void) buf;
+  (void) len;
+  return 0;
+#endif
 }
 
 
 #if CFG_TUSB_OS == OPT_OS_NONE
-  volatile uint32_t system_ticks = 0;
-  void SysTick_Handler(void)
-  {
-    system_ticks++;
-  }
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler(void) {
+  system_ticks++;
+}
 
-  uint32_t board_millis(void)
-  {
-    return system_ticks;
-  }
+uint32_t board_millis(void) {
+  return system_ticks;
+}
 
-  void SVC_Handler(void)
-  {
-  }
+void SVC_Handler(void) {
+}
 
-  void PendSV_Handler(void)
-  {
-  }
+void PendSV_Handler(void) {
+}
 #endif
 
 void HardFault_Handler(void) {
   __asm("BKPT #0\n");
 }
 
-#ifdef  USE_FULL_ASSERT
-void assert_failed(const char *file, uint32_t line)
-{
+// Required by __libc_init_array in startup code if we are compiling using
+// -nostdlib/-nostartfiles.
+void _init(void) {
+}
+
+#ifdef USE_FULL_ASSERT
+void assert_failed(const char *file, uint32_t line) {
   /* USER CODE BEGIN 6 */
   /* User can add his own implementation to report the file name and line number,
      tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
diff --git a/hw/bsp/at32f413/family.cmake b/hw/bsp/at32f413/family.cmake
new file mode 100644
index 000000000..b534bcbbc
--- /dev/null
+++ b/hw/bsp/at32f413/family.cmake
@@ -0,0 +1,108 @@
+include_guard()
+
+set(AT32_FAMILY at32f413)
+set(AT32_SDK_LIB ${TOP}/hw/mcu/artery/${AT32_FAMILY}/libraries)
+
+string(TOUPPER ${AT32_FAMILY} AT32_FAMILY_UPPER)
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+# toolchain set up
+set(CMAKE_SYSTEM_CPU cortex-m4 CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+
+set(FAMILY_MCUS ${AT32_FAMILY_UPPER} CACHE INTERNAL "")
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+function(add_board_target BOARD_TARGET)
+  if (TARGET ${BOARD_TARGET})
+    return()
+  endif ()
+
+  # Startup & Linker script
+  set(STARTUP_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s)
+  set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
+  set(STARTUP_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s)
+
+  if (NOT DEFINED LD_FILE_GNU)
+    set(LD_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
+  endif ()
+  set(LD_FILE_Clang ${LD_FILE_GNU})
+  set(LD_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
+
+  add_library(${BOARD_TARGET} STATIC
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_gpio.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_misc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_usart.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_acc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_crm.c
+    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${AT32_SDK_LIB}/cmsis/cm4/core_support
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support
+    ${AT32_SDK_LIB}/drivers/inc
+    )
+
+  update_board(${BOARD_TARGET})
+
+  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -nostartfiles
+      --specs=nosys.specs --specs=nano.specs
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_Clang}"
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_IAR}"
+      )
+  endif ()
+endfunction()
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+function(family_configure_example TARGET RTOS)
+  family_configure_common(${TARGET} ${RTOS})
+
+  # Board target
+  add_board_target(board_${BOARD})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_clock.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_int.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  # Add TinyUSB target and port source
+  family_add_tinyusb(${TARGET} OPT_MCU_${AT32_FAMILY_UPPER})
+  target_sources(${TARGET} PUBLIC
+    ${TOP}/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
+    )
+  target_link_libraries(${TARGET} PUBLIC board_${BOARD})
+
+  # Flashing
+  family_add_bin_hex(${TARGET})
+  family_flash_jlink(${TARGET})
+endfunction()
diff --git a/hw/bsp/at32f413/family.mk b/hw/bsp/at32f413/family.mk
index cf02445c0..9c5d867de 100644
--- a/hw/bsp/at32f413/family.mk
+++ b/hw/bsp/at32f413/family.mk
@@ -1,8 +1,5 @@
-# Submodules
-AT32F413_SDK = hw/mcu/artery/at32f413
-
-# AT32 SDK path
-AT32F413_SDK_SRC = $(AT32F413_SDK)/libraries
+AT32_FAMILY = at32f413
+AT32_SDK_LIB = hw/mcu/artery/${AT32_FAMILY}/libraries
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
@@ -19,21 +16,24 @@ LDFLAGS_GCC += \
 
 SRC_C += \
 	src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c \
-	$(AT32F413_SDK_SRC)/drivers/src/at32f413_gpio.c \
-	$(AT32F413_SDK_SRC)/drivers/src/at32f413_misc.c \
-	$(AT32F413_SDK_SRC)/drivers/src/at32f413_usart.c \
-	$(AT32F413_SDK_SRC)/drivers/src/at32f413_acc.c \
-	$(AT32F413_SDK_SRC)/drivers/src/at32f413_crm.c \
-	$(AT32F413_SDK_SRC)/cmsis/cm4/device_support/system_at32f413.c
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_gpio.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_misc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_usart.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_acc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_crm.c \
+	$(AT32_SDK_LIB)/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(AT32F413_SDK_SRC)/drivers/inc \
-	$(TOP)/$(AT32F413_SDK_SRC)/cmsis/cm4/core_support \
-	$(TOP)/$(AT32F413_SDK_SRC)/cmsis/cm4/device_support
+	$(TOP)/$(AT32_SDK_LIB)/drivers/inc \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/core_support \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/device_support
+
+SRC_S_GCC += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s
+SRC_S_IAR += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s
 
-SRC_S += \
-	$(FAMILY_PATH)/startup_at32f413.s
+LD_FILE_GCC ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld
+LD_FILE_IAR ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf
 
 # For freeRTOS port source
 FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4F
diff --git a/hw/bsp/at32f413/startup_at32f413.s b/hw/bsp/at32f413/startup_at32f413.s
deleted file mode 100644
index 42631da93..000000000
--- a/hw/bsp/at32f413/startup_at32f413.s
+++ /dev/null
@@ -1,431 +0,0 @@
-/**
-  ******************************************************************************
-  * @file     startup_at32f413.s
-  * @brief    at32f413xx devices vector table for gcc toolchain.
-  *           this module performs:
-  *           - set the initial sp
-  *           - set the initial pc == reset_handler,
-  *           - set the vector table entries with the exceptions isr address
-  *           - configure the clock system and the external sram to
-  *             be used as data memory (optional, to be enabled by user)
-  *           - branches to main in the c library (which eventually
-  *             calls main()).
-  *           after reset the cortex-m4 processor is in thread mode,
-  *           priority is privileged, and the stack is set to main.
-  ******************************************************************************
-  */
-
-  .syntax unified
-  .cpu cortex-m4
-  .fpu softvfp
-  .thumb
-
-.global  g_pfnVectors
-.global  Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word  _sidata
-/* start address for the .data section. defined in linker script */
-.word  _sdata
-/* end address for the .data section. defined in linker script */
-.word  _edata
-/* start address for the .bss section. defined in linker script */
-.word  _sbss
-/* end address for the .bss section. defined in linker script */
-.word  _ebss
-/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
-
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval None
-*/
-
-    .section  .text.Reset_Handler
-  .weak  Reset_Handler
-  .type  Reset_Handler, %function
-Reset_Handler:
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs  r1, #0
-  b  LoopCopyDataInit
-
-CopyDataInit:
-  ldr  r3, =_sidata
-  ldr  r3, [r3, r1]
-  str  r3, [r0, r1]
-  adds  r1, r1, #4
-
-LoopCopyDataInit:
-  ldr  r0, =_sdata
-  ldr  r3, =_edata
-  adds  r2, r0, r1
-  cmp  r2, r3
-  bcc  CopyDataInit
-  ldr  r2, =_sbss
-  b  LoopFillZerobss
-/* Zero fill the bss segment. */
-FillZerobss:
-  movs  r3, #0
-  str  r3, [r2], #4
-
-LoopFillZerobss:
-  ldr  r3, = _ebss
-  cmp  r2, r3
-  bcc  FillZerobss
-
-/* Call the clock system initialization function.*/
-  bl  SystemInit
-/* Call static constructors */
-  bl __libc_init_array
-/* Call the application's entry point.*/
-  bl  main
-  bx  lr
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- * @param  None
- * @retval None
-*/
-    .section  .text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-  b  Infinite_Loop
-  .size  Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex M3. Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-*******************************************************************************/
-   .section  .isr_vector,"a",%progbits
-  .type  g_pfnVectors, %object
-  .size  g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-  .word  _estack
-  .word  Reset_Handler
-  .word  NMI_Handler
-  .word  HardFault_Handler
-  .word  MemManage_Handler
-  .word  BusFault_Handler
-  .word  UsageFault_Handler
-  .word  0
-  .word  0
-  .word  0
-  .word  0
-  .word  SVC_Handler
-  .word  DebugMon_Handler
-  .word  0
-  .word  PendSV_Handler
-  .word  SysTick_Handler
-
-  /* External Interrupts */
-  .word  WWDT_IRQHandler                     /* Window Watchdog Timer                   */
-  .word  PVM_IRQHandler                      /* PVM through EXINT Line detect           */
-  .word  TAMPER_IRQHandler                   /* Tamper                                  */
-  .word  RTC_IRQHandler                      /* RTC                                     */
-  .word  FLASH_IRQHandler                    /* Flash                                   */
-  .word  CRM_IRQHandler                      /* CRM                                     */
-  .word  EXINT0_IRQHandler                   /* EXINT Line 0                            */
-  .word  EXINT1_IRQHandler                   /* EXINT Line 1                            */
-  .word  EXINT2_IRQHandler                   /* EXINT Line 2                            */
-  .word  EXINT3_IRQHandler                   /* EXINT Line 3                            */
-  .word  EXINT4_IRQHandler                   /* EXINT Line 4                            */
-  .word  DMA1_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA1_Channel2_IRQHandler            /* DMA1 Channel 2                          */
-  .word  DMA1_Channel3_IRQHandler            /* DMA1 Channel 3                          */
-  .word  DMA1_Channel4_IRQHandler            /* DMA1 Channel 4                          */
-  .word  DMA1_Channel5_IRQHandler            /* DMA1 Channel 5                          */
-  .word  DMA1_Channel6_IRQHandler            /* DMA1 Channel 6                          */
-  .word  DMA1_Channel7_IRQHandler            /* DMA1 Channel 7                          */
-  .word  ADC1_2_IRQHandler                   /* ADC1 & ADC2                             */
-  .word  USBFS_H_CAN1_TX_IRQHandler          /* USB High Priority or CAN1 TX            */
-  .word  USBFS_L_CAN1_RX0_IRQHandler         /* USB Low  Priority or CAN1 RX0           */
-  .word  CAN1_RX1_IRQHandler                 /* CAN1 RX1                                */
-  .word  CAN1_SE_IRQHandler                  /* CAN1 SE                                 */
-  .word  EXINT9_5_IRQHandler                 /* EXINT Line [9:5]                        */
-  .word  TMR1_BRK_TMR9_IRQHandler            /* TMR1 Brake and TMR9                     */
-  .word  TMR1_OVF_TMR10_IRQHandler           /* TMR1 Overflow and TMR10                 */
-  .word  TMR1_TRG_HALL_TMR11_IRQHandler      /* TMR1 Trigger and hall and TMR11         */
-  .word  TMR1_CH_IRQHandler                  /* TMR1 Channel                            */
-  .word  TMR2_GLOBAL_IRQHandler              /* TMR2                                    */
-  .word  TMR3_GLOBAL_IRQHandler              /* TMR3                                    */
-  .word  TMR4_GLOBAL_IRQHandler              /* TMR4                                    */
-  .word  I2C1_EVT_IRQHandler                 /* I2C1 Event                              */
-  .word  I2C1_ERR_IRQHandler                 /* I2C1 Error                              */
-  .word  I2C2_EVT_IRQHandler                 /* I2C2 Event                              */
-  .word  I2C2_ERR_IRQHandler                 /* I2C2 Error                              */
-  .word  SPI1_IRQHandler                     /* SPI1                                    */
-  .word  SPI2_IRQHandler                     /* Reserved                                */
-  .word  USART1_IRQHandler                   /* USART1                                  */
-  .word  USART2_IRQHandler                   /* USART2                                  */
-  .word  USART3_IRQHandler                   /* USART3                                  */
-  .word  EXINT15_10_IRQHandler               /* EXINT Line [15:10]                      */
-  .word  RTCAlarm_IRQHandler                 /* RTC Alarm through EXINT Line            */
-  .word  USBFSWakeUp_IRQHandler              /* USB Wakeup from suspend                 */
-  .word  TMR8_BRK_IRQHandler                 /* TMR8 Brake                              */
-  .word  TMR8_OVF_IRQHandler                 /* TMR8 Overflow                           */
-  .word  TMR8_TRG_HALL_IRQHandler            /* TMR8 Trigger and hall                   */
-  .word  TMR8_CH_IRQHandler                  /* TMR8 Channel                            */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  SDIO1_IRQHandler                    /* SDIO1                                   */
-  .word  TMR5_GLOBAL_IRQHandler              /* TMR5                                    */
-  .word  0                                   /* Reserved                                */
-  .word  UART4_IRQHandler                    /* UART4                                   */
-  .word  UART5_IRQHandler                    /* UART5                                   */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  DMA2_Channel1_IRQHandler            /* DMA2 Channel1                           */
-  .word  DMA2_Channel2_IRQHandler            /* DMA2 Channel2                           */
-  .word  DMA2_Channel3_IRQHandler            /* DMA2 Channel3                           */
-  .word  DMA2_Channel4_5_IRQHandler          /* DMA2 Channel4 & Channel5                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  CAN2_TX_IRQHandler                  /* CAN2 TX                                 */
-  .word  CAN2_RX0_IRQHandler                 /* CAN2 RX0                                */
-  .word  CAN2_RX1_IRQHandler                 /* CAN2 RX1                                */
-  .word  CAN2_SE_IRQHandler                  /* CAN2 SE                                 */
-  .word  ACC_IRQHandler                      /* ACC                                     */
-  .word  USBFS_MAPH_IRQHandler               /* USB Map HP                              */
-  .word  USBFS_MAPL_IRQHandler               /* USB Map LP                              */
-  .word  DMA2_Channel6_7_IRQHandler          /* DMA2 Channel6 & Channel7                */
-
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-   .weak      NMI_Handler
-   .thumb_set NMI_Handler,Default_Handler
-
-   .weak      HardFault_Handler
-   .thumb_set HardFault_Handler,Default_Handler
-
-   .weak      MemManage_Handler
-   .thumb_set MemManage_Handler,Default_Handler
-
-   .weak      BusFault_Handler
-   .thumb_set BusFault_Handler,Default_Handler
-
-   .weak      UsageFault_Handler
-   .thumb_set UsageFault_Handler,Default_Handler
-
-   .weak      SVC_Handler
-   .thumb_set SVC_Handler,Default_Handler
-
-   .weak      DebugMon_Handler
-   .thumb_set DebugMon_Handler,Default_Handler
-
-   .weak      PendSV_Handler
-   .thumb_set PendSV_Handler,Default_Handler
-
-   .weak      SysTick_Handler
-   .thumb_set SysTick_Handler,Default_Handler
-
-   .weak      WWDT_IRQHandler
-   .thumb_set WWDT_IRQHandler,Default_Handler
-
-   .weak      PVM_IRQHandler
-   .thumb_set PVM_IRQHandler,Default_Handler
-
-   .weak      TAMPER_IRQHandler
-   .thumb_set TAMPER_IRQHandler,Default_Handler
-
-   .weak      RTC_IRQHandler
-   .thumb_set RTC_IRQHandler,Default_Handler
-
-   .weak      FLASH_IRQHandler
-   .thumb_set FLASH_IRQHandler,Default_Handler
-
-   .weak      CRM_IRQHandler
-   .thumb_set CRM_IRQHandler,Default_Handler
-
-   .weak      EXINT0_IRQHandler
-   .thumb_set EXINT0_IRQHandler,Default_Handler
-
-   .weak      EXINT1_IRQHandler
-   .thumb_set EXINT1_IRQHandler,Default_Handler
-
-   .weak      EXINT2_IRQHandler
-   .thumb_set EXINT2_IRQHandler,Default_Handler
-
-   .weak      EXINT3_IRQHandler
-   .thumb_set EXINT3_IRQHandler,Default_Handler
-
-   .weak      EXINT4_IRQHandler
-   .thumb_set EXINT4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel1_IRQHandler
-   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel2_IRQHandler
-   .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel3_IRQHandler
-   .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel4_IRQHandler
-   .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel5_IRQHandler
-   .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel6_IRQHandler
-   .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel7_IRQHandler
-   .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
-
-   .weak      ADC1_2_IRQHandler
-   .thumb_set ADC1_2_IRQHandler,Default_Handler
-
-   .weak      USBFS_H_CAN1_TX_IRQHandler
-   .thumb_set USBFS_H_CAN1_TX_IRQHandler,Default_Handler
-
-   .weak      USBFS_L_CAN1_RX0_IRQHandler
-   .thumb_set USBFS_L_CAN1_RX0_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX1_IRQHandler
-   .thumb_set CAN1_RX1_IRQHandler,Default_Handler
-
-   .weak      CAN1_SE_IRQHandler
-   .thumb_set CAN1_SE_IRQHandler,Default_Handler
-
-   .weak      EXINT9_5_IRQHandler
-   .thumb_set EXINT9_5_IRQHandler,Default_Handler
-
-   .weak      TMR1_BRK_TMR9_IRQHandler
-   .thumb_set TMR1_BRK_TMR9_IRQHandler,Default_Handler
-
-   .weak      TMR1_OVF_TMR10_IRQHandler
-   .thumb_set TMR1_OVF_TMR10_IRQHandler,Default_Handler
-
-   .weak      TMR1_TRG_HALL_TMR11_IRQHandler
-   .thumb_set TMR1_TRG_HALL_TMR11_IRQHandler,Default_Handler
-
-   .weak      TMR1_CH_IRQHandler
-   .thumb_set TMR1_CH_IRQHandler,Default_Handler
-
-   .weak      TMR2_GLOBAL_IRQHandler
-   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR3_GLOBAL_IRQHandler
-   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR4_GLOBAL_IRQHandler
-   .thumb_set TMR4_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      I2C1_EVT_IRQHandler
-   .thumb_set I2C1_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C1_ERR_IRQHandler
-   .thumb_set I2C1_ERR_IRQHandler,Default_Handler
-
-   .weak      I2C2_EVT_IRQHandler
-   .thumb_set I2C2_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C2_ERR_IRQHandler
-   .thumb_set I2C2_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI1_IRQHandler
-   .thumb_set SPI1_IRQHandler,Default_Handler
-
-   .weak      SPI2_IRQHandler
-   .thumb_set SPI2_IRQHandler,Default_Handler
-
-   .weak      USART1_IRQHandler
-   .thumb_set USART1_IRQHandler,Default_Handler
-
-   .weak      USART2_IRQHandler
-   .thumb_set USART2_IRQHandler,Default_Handler
-
-   .weak      USART3_IRQHandler
-   .thumb_set USART3_IRQHandler,Default_Handler
-
-   .weak      EXINT15_10_IRQHandler
-   .thumb_set EXINT15_10_IRQHandler,Default_Handler
-
-   .weak      RTCAlarm_IRQHandler
-   .thumb_set RTCAlarm_IRQHandler,Default_Handler
-
-   .weak      USBFSWakeUp_IRQHandler
-   .thumb_set USBFSWakeUp_IRQHandler,Default_Handler
-
-   .weak      TMR8_BRK_IRQHandler
-   .thumb_set TMR8_BRK_IRQHandler,Default_Handler
-
-   .weak      TMR8_OVF_IRQHandler
-   .thumb_set TMR8_OVF_IRQHandler,Default_Handler
-
-   .weak      TMR8_TRG_HALL_IRQHandler
-   .thumb_set TMR8_TRG_HALL_IRQHandler,Default_Handler
-
-   .weak      TMR8_CH_IRQHandler
-   .thumb_set TMR8_CH_IRQHandler,Default_Handler
-
-   .weak      SDIO1_IRQHandler
-   .thumb_set SDIO1_IRQHandler,Default_Handler
-
-   .weak      TMR5_GLOBAL_IRQHandler
-   .thumb_set TMR5_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      UART4_IRQHandler
-   .thumb_set UART4_IRQHandler,Default_Handler
-
-   .weak      UART5_IRQHandler
-   .thumb_set UART5_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel1_IRQHandler
-   .thumb_set DMA2_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel2_IRQHandler
-   .thumb_set DMA2_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel3_IRQHandler
-   .thumb_set DMA2_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel4_5_IRQHandler
-   .thumb_set DMA2_Channel4_5_IRQHandler,Default_Handler
-
-   .weak      CAN2_TX_IRQHandler
-   .thumb_set CAN2_TX_IRQHandler,Default_Handler
-
-   .weak      CAN2_RX0_IRQHandler
-   .thumb_set CAN2_RX0_IRQHandler ,Default_Handler
-
-   .weak      CAN2_RX1_IRQHandler
-   .thumb_set CAN2_RX1_IRQHandler ,Default_Handler
-
-   .weak      CAN2_SE_IRQHandler
-   .thumb_set CAN2_SE_IRQHandler,Default_Handler
-
-   .weak      ACC_IRQHandler
-   .thumb_set ACC_IRQHandler,Default_Handler
-
-   .weak      USBFS_MAPH_IRQHandler
-   .thumb_set USBFS_MAPH_IRQHandler,Default_Handler
-
-   .weak      USBFS_MAPL_IRQHandler
-   .thumb_set USBFS_MAPL_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel6_7_IRQHandler
-   .thumb_set DMA2_Channel6_7_IRQHandler,Default_Handler
diff --git a/hw/bsp/at32f415/boards/AT_START_F415/AT32F415xC_FLASH.ld b/hw/bsp/at32f415/boards/AT_START_F415/AT32F415xC_FLASH.ld
deleted file mode 100644
index 6da817705..000000000
--- a/hw/bsp/at32f415/boards/AT_START_F415/AT32F415xC_FLASH.ld
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : AT32F415xC_FLASH.ld
-**
-**  Abstract    : Linker script for AT32F415xC Device with
-**                256KByte FLASH, 32KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**  Target      : Artery Tek AT32
-**
-**  Environment : Arm gcc toolchain
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20008000;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 256K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 32K
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data :
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss section */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(8);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(8);
-  } >RAM
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}
diff --git a/hw/bsp/at32f415/boards/AT_START_F415/board.cmake b/hw/bsp/at32f415/boards/AT_START_F415/board.cmake
new file mode 100644
index 000000000..43fc43a70
--- /dev/null
+++ b/hw/bsp/at32f415/boards/AT_START_F415/board.cmake
@@ -0,0 +1,11 @@
+set(MCU_VARIANT AT32F415RCT7)
+set(MCU_LINKER_NAME AT32F415xC)
+
+set(JLINK_DEVICE ${MCU_VARIANT})
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    ${MCU_VARIANT}
+    CFG_EXAMPLE_VIDEO_READONLY
+    )
+endfunction()
diff --git a/hw/bsp/at32f415/boards/AT_START_F415/board.mk b/hw/bsp/at32f415/boards/AT_START_F415/board.mk
index 6c877ec71..7ea7dc593 100644
--- a/hw/bsp/at32f415/boards/AT_START_F415/board.mk
+++ b/hw/bsp/at32f415/boards/AT_START_F415/board.mk
@@ -1,4 +1,8 @@
-LD_FILE = $(BOARD_PATH)/AT32F415xC_FLASH.ld
+MCU_VARIANT = AT32F415RCT7
+MCU_LINKER_NAME = AT32F415xC
+
+JLINK_DEVICE = ${MCU_VARIANT}
 
 CFLAGS += \
-  -DAT32F415RCT7
+  -D${MCU_VARIANT} \
+  -DCFG_EXAMPLE_VIDEO_READONLY
diff --git a/hw/bsp/at32f415/family.c b/hw/bsp/at32f415/family.c
index 516095dfb..b8ccae97d 100644
--- a/hw/bsp/at32f415/family.c
+++ b/hw/bsp/at32f415/family.c
@@ -25,8 +25,8 @@
  */
 
 #include "at32f415_clock.h"
-#include "bsp/board_api.h"
 #include "board.h"
+#include "bsp/board_api.h"
 
 void uart_print_init(uint32_t baudrate);
 void usb_clock48m_select(usb_clk48_s clk_s);
@@ -35,17 +35,14 @@ void led_and_button_init(void);
 //--------------------------------------------------------------------+
 // Forward USB interrupt events to TinyUSB IRQ Handler
 //--------------------------------------------------------------------+
-void OTGFS1_IRQHandler(void)
-{
+void OTGFS1_IRQHandler(void) {
   tusb_int_handler(0, true);
 }
-void OTGFS1_WKUP_IRQHandler(void)
-{
+void OTGFS1_WKUP_IRQHandler(void) {
   tusb_int_handler(0, true);
 }
 
-void board_init(void)
-{
+void board_init(void) {
   /* config nvic priority group */
   nvic_priority_group_config(NVIC_PRIORITY_GROUP_4);
 
@@ -64,24 +61,24 @@ void board_init(void)
   /* configure systick */
   systick_clock_source_config(SYSTICK_CLOCK_SOURCE_AHBCLK_NODIV);
   SysTick_Config(SystemCoreClock / 1000);
-  #if CFG_TUSB_OS == OPT_OS_FREERTOS
-    // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-    NVIC_SetPriority(OTG_IRQ, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
-  #endif
+#if CFG_TUSB_OS == OPT_OS_FREERTOS
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+  NVIC_SetPriority(OTG_IRQ, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
+#endif
 
-  /* otgfs use vbus pin */
-  #ifndef USB_VBUS_IGNORE
-    gpio_init_type gpio_init_struct;
-    crm_periph_clock_enable(OTG_PIN_GPIO_CLOCK, TRUE);
-    gpio_default_para_init(&gpio_init_struct);
-    gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-    gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
-    gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
-    gpio_init_struct.gpio_pins = OTG_PIN_VBUS;
-    gpio_init_struct.gpio_pull = GPIO_PULL_DOWN;
-    gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_VBUS_SOURCE, OTG_PIN_MUX);
-    gpio_init(OTG_PIN_GPIO, &gpio_init_struct);
-  #endif
+/* otgfs use vbus pin */
+#ifndef USB_VBUS_IGNORE
+  gpio_init_type gpio_init_struct;
+  crm_periph_clock_enable(OTG_PIN_GPIO_CLOCK, TRUE);
+  gpio_default_para_init(&gpio_init_struct);
+  gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
+  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
+  gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
+  gpio_init_struct.gpio_pins = OTG_PIN_VBUS;
+  gpio_init_struct.gpio_pull = GPIO_PULL_DOWN;
+  gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_VBUS_SOURCE, OTG_PIN_MUX);
+  gpio_init(OTG_PIN_GPIO, &gpio_init_struct);
+#endif
 
   /* config led and key */
   led_and_button_init();
@@ -99,43 +96,40 @@ void board_init(void)
   * @param  clk_s:USB_CLK_HICK, USB_CLK_HEXT
   * @retval none
   */
-void usb_clock48m_select(usb_clk48_s clk_s)
-{
-    (void) clk_s;
-    switch(system_core_clock)
-    {
-      /* 48MHz */
-      case 48000000:
-        crm_usb_clock_div_set(CRM_USB_DIV_1);
-        break;
+void usb_clock48m_select(usb_clk48_s clk_s) {
+  (void) clk_s;
+  switch (system_core_clock) {
+    /* 48MHz */
+    case 48000000:
+      crm_usb_clock_div_set(CRM_USB_DIV_1);
+      break;
 
-      /* 72MHz */
-      case 72000000:
-        crm_usb_clock_div_set(CRM_USB_DIV_1_5);
-        break;
+    /* 72MHz */
+    case 72000000:
+      crm_usb_clock_div_set(CRM_USB_DIV_1_5);
+      break;
 
-      /* 96MHz */
-      case 96000000:
-        crm_usb_clock_div_set(CRM_USB_DIV_2);
-        break;
+    /* 96MHz */
+    case 96000000:
+      crm_usb_clock_div_set(CRM_USB_DIV_2);
+      break;
 
-      /* 120MHz */
-      case 120000000:
-        crm_usb_clock_div_set(CRM_USB_DIV_2_5);
-        break;
+    /* 120MHz */
+    case 120000000:
+      crm_usb_clock_div_set(CRM_USB_DIV_2_5);
+      break;
 
-      /* 144MHz */
-      case 144000000:
-        crm_usb_clock_div_set(CRM_USB_DIV_3);
-        break;
+    /* 144MHz */
+    case 144000000:
+      crm_usb_clock_div_set(CRM_USB_DIV_3);
+      break;
 
-      default:
-        break;
-    }
+    default:
+      break;
+  }
 }
 
-void led_and_button_init(void)
-{
+void led_and_button_init(void) {
   /* LED */
   gpio_init_type gpio_led_init_struct;
   /* enable the led clock */
@@ -144,7 +138,7 @@ void led_and_button_init(void)
   gpio_default_para_init(&gpio_led_init_struct);
   /* configure the led gpio */
   gpio_led_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_led_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_led_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_led_init_struct.gpio_mode = GPIO_MODE_OUTPUT;
   gpio_led_init_struct.gpio_pins = LED_PIN;
   gpio_led_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -169,8 +163,7 @@ void led_and_button_init(void)
   * @param  baudrate: uart baudrate
   * @retval none
   */
-void uart_print_init(uint32_t baudrate)
-{
+void uart_print_init(uint32_t baudrate) {
   gpio_init_type gpio_init_struct;
   /* enable the uart and gpio clock */
   crm_periph_clock_enable(PRINT_UART_CRM_CLK, TRUE);
@@ -178,7 +171,7 @@ void uart_print_init(uint32_t baudrate)
   gpio_default_para_init(&gpio_init_struct);
   /* configure the uart tx pin */
   gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
   gpio_init_struct.gpio_pins = PRINT_UART_TX_PIN;
   gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -190,55 +183,47 @@ void uart_print_init(uint32_t baudrate)
 }
 
 // Get characters from UART. Return number of read bytes
-int board_uart_read(uint8_t *buf, int len)
-{
+int board_uart_read(uint8_t *buf, int len) {
   (void) buf;
   (void) len;
   return 0;
 }
 
 // Send characters to UART. Return number of sent bytes
-int board_uart_write(void const *buf, int len)
-{
-  #if CFG_TUSB_OS == OPT_OS_NONE
-    int txsize = len;
-    u16 timeout = 0xffff;
-    while (txsize--)
-    {
-      while(usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET)
-      {
-        timeout--;
-        if(timeout == 0)
-        {
-          return 0;
-        }
+int board_uart_write(void const *buf, int len) {
+#if CFG_TUSB_OS == OPT_OS_NONE
+  int txsize = len;
+  u16 timeout = 0xffff;
+  while (txsize--) {
+    while (usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET) {
+      timeout--;
+      if (timeout == 0) {
+        return 0;
       }
-      PRINT_UART->dt = (*((uint8_t const *)buf) & 0x01FF);
-      buf++;
     }
-    return len;
-  #else
-    (void) buf;
-    (void) len;
-    return 0;
-  #endif
+    PRINT_UART->dt = (*((uint8_t const *) buf) & 0x01FF);
+    buf++;
+  }
+  return len;
+#else
+  (void) buf;
+  (void) len;
+  return 0;
+#endif
 }
 
-void board_led_write(bool state)
-{
+void board_led_write(bool state) {
   gpio_bits_write(LED_PORT, LED_PIN, state ^ (!LED_STATE_ON));
 }
 
-uint32_t board_button_read(void)
-{
+uint32_t board_button_read(void) {
   return gpio_input_data_bit_read(BUTTON_PORT, BUTTON_PIN);
 }
 
-size_t board_get_unique_id(uint8_t id[], size_t max_len)
-{
+size_t board_get_unique_id(uint8_t id[], size_t max_len) {
   (void) max_len;
-  volatile uint32_t * at32_uuid = ((volatile uint32_t*)0x1FFFF7E8);
-  uint32_t* id32 = (uint32_t*) (uintptr_t) id;
+  volatile uint32_t *at32_uuid = ((volatile uint32_t *) 0x1FFFF7E8);
+  uint32_t *id32 = (uint32_t *) (uintptr_t) id;
   uint8_t const len = 12;
 
   id32[0] = at32_uuid[0];
@@ -251,24 +236,20 @@ size_t board_get_unique_id(uint8_t id[], size_t max_len)
 
 #if CFG_TUSB_OS == OPT_OS_NONE
 
-  volatile uint32_t system_ticks = 0;
-  void SysTick_Handler(void)
-  {
-    system_ticks++;
-  }
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler(void) {
+  system_ticks++;
+}
 
-  uint32_t board_millis(void)
-  {
-    return system_ticks;
-  }
+uint32_t board_millis(void) {
+  return system_ticks;
+}
 
-  void SVC_Handler(void)
-  {
-  }
+void SVC_Handler(void) {
+}
 
-  void PendSV_Handler(void)
-  {
-  }
+void PendSV_Handler(void) {
+}
 #endif
 
 void HardFault_Handler(void) {
@@ -280,9 +261,8 @@ void HardFault_Handler(void) {
 void _init(void) {
 }
 
-#ifdef  USE_FULL_ASSERT
-void assert_failed(const char *file, uint32_t line)
-{
+#ifdef USE_FULL_ASSERT
+void assert_failed(const char *file, uint32_t line) {
   /* USER CODE BEGIN 6 */
   /* User can add his own implementation to report the file name and line number,
      tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
diff --git a/hw/bsp/at32f415/family.cmake b/hw/bsp/at32f415/family.cmake
new file mode 100644
index 000000000..8ac946265
--- /dev/null
+++ b/hw/bsp/at32f415/family.cmake
@@ -0,0 +1,108 @@
+include_guard()
+
+set(AT32_FAMILY at32f415)
+set(AT32_SDK_LIB ${TOP}/hw/mcu/artery/${AT32_FAMILY}/libraries)
+
+string(TOUPPER ${AT32_FAMILY} AT32_FAMILY_UPPER)
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+# toolchain set up
+set(CMAKE_SYSTEM_CPU cortex-m4-nofpu CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+
+set(FAMILY_MCUS ${AT32_FAMILY_UPPER} CACHE INTERNAL "")
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+function(add_board_target BOARD_TARGET)
+  if (TARGET ${BOARD_TARGET})
+    return()
+  endif ()
+
+  # Startup & Linker script
+  set(STARTUP_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s)
+  set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
+  set(STARTUP_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s)
+
+  if (NOT DEFINED LD_FILE_GNU)
+    set(LD_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
+  endif ()
+  set(LD_FILE_Clang ${LD_FILE_GNU})
+  set(LD_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
+
+  add_library(${BOARD_TARGET} STATIC
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_gpio.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_misc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_usart.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_crm.c
+    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${AT32_SDK_LIB}/cmsis/cm4/core_support
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support
+    ${AT32_SDK_LIB}/drivers/inc
+    )
+  update_board(${BOARD_TARGET})
+
+  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -nostartfiles
+      --specs=nosys.specs --specs=nano.specs
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_Clang}"
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_IAR}"
+      )
+  endif ()
+endfunction()
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+function(family_configure_example TARGET RTOS)
+  family_configure_common(${TARGET} ${RTOS})
+
+  # Board target
+  add_board_target(board_${BOARD})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_clock.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_int.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  # Add TinyUSB target and port source
+  family_add_tinyusb(${TARGET} OPT_MCU_${AT32_FAMILY_UPPER})
+  target_sources(${TARGET} PUBLIC
+    ${TOP}/src/portable/synopsys/dwc2/dcd_dwc2.c
+    ${TOP}/src/portable/synopsys/dwc2/hcd_dwc2.c
+    ${TOP}/src/portable/synopsys/dwc2/dwc2_common.c
+    )
+  target_link_libraries(${TARGET} PUBLIC board_${BOARD})
+
+  # Flashing
+  family_add_bin_hex(${TARGET})
+  family_flash_jlink(${TARGET})
+endfunction()
diff --git a/hw/bsp/at32f415/family.mk b/hw/bsp/at32f415/family.mk
index 1edf6be4e..73a89c543 100644
--- a/hw/bsp/at32f415/family.mk
+++ b/hw/bsp/at32f415/family.mk
@@ -1,12 +1,9 @@
-# Submodules
-AT32F415_SDK = hw/mcu/artery/at32f415
-
-# AT32 SDK path
-AT32F415_SDK_SRC = $(AT32F415_SDK)/libraries
+AT32_FAMILY = at32f415
+AT32_SDK_LIB = hw/mcu/artery/${AT32_FAMILY}/libraries
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
-CPU_CORE ?= cortex-m3
+CPU_CORE ?= cortex-m4-nofpu
 
 CFLAGS_GCC += \
   -flto
@@ -21,22 +18,22 @@ SRC_C += \
 	src/portable/synopsys/dwc2/dcd_dwc2.c \
 	src/portable/synopsys/dwc2/hcd_dwc2.c \
 	src/portable/synopsys/dwc2/dwc2_common.c \
-	$(AT32F415_SDK_SRC)/drivers/src/at32f415_gpio.c \
-	$(AT32F415_SDK_SRC)/drivers/src/at32f415_misc.c \
-	$(AT32F415_SDK_SRC)/drivers/src/at32f415_usart.c \
-	$(AT32F415_SDK_SRC)/drivers/src/at32f415_crm.c \
-	$(AT32F415_SDK_SRC)/cmsis/cm4/device_support/system_at32f415.c
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_gpio.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_misc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_usart.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_crm.c \
+	$(AT32_SDK_LIB)/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(AT32F415_SDK_SRC)/drivers/inc \
-	$(TOP)/$(AT32F415_SDK_SRC)/cmsis/cm4/core_support \
-	$(TOP)/$(AT32F415_SDK_SRC)/cmsis/cm4/device_support
+	$(TOP)/$(AT32_SDK_LIB)/drivers/inc \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/core_support \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/device_support
 
-SRC_S += \
-	$(FAMILY_PATH)/startup_at32f415.s
+SRC_S_GCC += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s
+SRC_S_IAR += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s
 
-# For freeRTOS port source
-#FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4
+LD_FILE_GCC ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld
+LD_FILE_IAR ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf
 
 flash: flash-atlink
diff --git a/hw/bsp/at32f415/startup_at32f415.s b/hw/bsp/at32f415/startup_at32f415.s
deleted file mode 100644
index 2c4dbc9ef..000000000
--- a/hw/bsp/at32f415/startup_at32f415.s
+++ /dev/null
@@ -1,407 +0,0 @@
-/**
-  ******************************************************************************
-  * @file     startup_at32f415.s
-  * @brief    at32f415xx devices vector table for gcc toolchain.
-  *           this module performs:
-  *           - set the initial sp
-  *           - set the initial pc == reset_handler,
-  *           - set the vector table entries with the exceptions isr address
-  *           - configure the clock system and the external sram to
-  *             be used as data memory (optional, to be enabled by user)
-  *           - branches to main in the c library (which eventually
-  *             calls main()).
-  *           after reset the cortex-m4 processor is in thread mode,
-  *           priority is privileged, and the stack is set to main.
-  ******************************************************************************
-  */
-
-  .syntax unified
-  .cpu cortex-m4
-  .fpu softvfp
-  .thumb
-
-.global  g_pfnVectors
-.global  Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word  _sidata
-/* start address for the .data section. defined in linker script */
-.word  _sdata
-/* end address for the .data section. defined in linker script */
-.word  _edata
-/* start address for the .bss section. defined in linker script */
-.word  _sbss
-/* end address for the .bss section. defined in linker script */
-.word  _ebss
-/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
-
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval None
-*/
-
-    .section  .text.Reset_Handler
-  .weak  Reset_Handler
-  .type  Reset_Handler, %function
-Reset_Handler:
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs  r1, #0
-  b  LoopCopyDataInit
-
-CopyDataInit:
-  ldr  r3, =_sidata
-  ldr  r3, [r3, r1]
-  str  r3, [r0, r1]
-  adds  r1, r1, #4
-
-LoopCopyDataInit:
-  ldr  r0, =_sdata
-  ldr  r3, =_edata
-  adds  r2, r0, r1
-  cmp  r2, r3
-  bcc  CopyDataInit
-  ldr  r2, =_sbss
-  b  LoopFillZerobss
-/* Zero fill the bss segment. */
-FillZerobss:
-  movs  r3, #0
-  str  r3, [r2], #4
-
-LoopFillZerobss:
-  ldr  r3, = _ebss
-  cmp  r2, r3
-  bcc  FillZerobss
-
-/* Call the clock system initialization function.*/
-  bl  SystemInit
-/* Call static constructors */
-  bl __libc_init_array
-/* Call the application's entry point.*/
-  bl  main
-  bx  lr
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- * @param  None
- * @retval None
-*/
-    .section  .text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-  b  Infinite_Loop
-  .size  Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex M3. Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-*******************************************************************************/
-   .section  .isr_vector,"a",%progbits
-  .type  g_pfnVectors, %object
-  .size  g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-  .word  _estack
-  .word  Reset_Handler
-  .word  NMI_Handler
-  .word  HardFault_Handler
-  .word  MemManage_Handler
-  .word  BusFault_Handler
-  .word  UsageFault_Handler
-  .word  0
-  .word  0
-  .word  0
-  .word  0
-  .word  SVC_Handler
-  .word  DebugMon_Handler
-  .word  0
-  .word  PendSV_Handler
-  .word  SysTick_Handler
-
-  /* External Interrupts */
-  .word  WWDT_IRQHandler                     /* Window Watchdog Timer                   */
-  .word  PVM_IRQHandler                      /* PVM through EXINT Line detect           */
-  .word  TAMP_STAMP_IRQHandler               /* Tamper and TimeStamps through the EXINT line */
-  .word  ERTC_WKUP_IRQHandler                /* ERTC Wakeup through the EXINT line      */
-  .word  FLASH_IRQHandler                    /* Flash                                   */
-  .word  CRM_IRQHandler                      /* CRM                                     */
-  .word  EXINT0_IRQHandler                   /* EXINT Line 0                            */
-  .word  EXINT1_IRQHandler                   /* EXINT Line 1                            */
-  .word  EXINT2_IRQHandler                   /* EXINT Line 2                            */
-  .word  EXINT3_IRQHandler                   /* EXINT Line 3                            */
-  .word  EXINT4_IRQHandler                   /* EXINT Line 4                            */
-  .word  DMA1_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA1_Channel2_IRQHandler            /* DMA1 Channel 2                          */
-  .word  DMA1_Channel3_IRQHandler            /* DMA1 Channel 3                          */
-  .word  DMA1_Channel4_IRQHandler            /* DMA1 Channel 4                          */
-  .word  DMA1_Channel5_IRQHandler            /* DMA1 Channel 5                          */
-  .word  DMA1_Channel6_IRQHandler            /* DMA1 Channel 6                          */
-  .word  DMA1_Channel7_IRQHandler            /* DMA1 Channel 7                          */
-  .word  ADC1_IRQHandler                     /* ADC1                                    */
-  .word  CAN1_TX_IRQHandler                  /* CAN1 TX                                 */
-  .word  CAN1_RX0_IRQHandler                 /* CAN1 RX0                                */
-  .word  CAN1_RX1_IRQHandler                 /* CAN1 RX1                                */
-  .word  CAN1_SE_IRQHandler                  /* CAN1 SE                                 */
-  .word  EXINT9_5_IRQHandler                 /* EXINT Line [9:5]                        */
-  .word  TMR1_BRK_TMR9_IRQHandler            /* TMR1 Brake and TMR9                     */
-  .word  TMR1_OVF_TMR10_IRQHandler           /* TMR1 overflow and TMR10                 */
-  .word  TMR1_TRG_HALL_TMR11_IRQHandler      /* TMR1 Trigger and hall and TMR11         */
-  .word  TMR1_CH_IRQHandler                  /* TMR1 channel                            */
-  .word  TMR2_GLOBAL_IRQHandler              /* TMR2                                    */
-  .word  TMR3_GLOBAL_IRQHandler              /* TMR3                                    */
-  .word  TMR4_GLOBAL_IRQHandler              /* TMR4                                    */
-  .word  I2C1_EVT_IRQHandler                 /* I2C1 Event                              */
-  .word  I2C1_ERR_IRQHandler                 /* I2C1 Error                              */
-  .word  I2C2_EVT_IRQHandler                 /* I2C2 Event                              */
-  .word  I2C2_ERR_IRQHandler                 /* I2C2 Error                              */
-  .word  SPI1_IRQHandler                     /* SPI1                                    */
-  .word  SPI2_IRQHandler                     /* SPI2                                    */
-  .word  USART1_IRQHandler                   /* USART1                                  */
-  .word  USART2_IRQHandler                   /* USART2                                  */
-  .word  USART3_IRQHandler                   /* USART3                                  */
-  .word  EXINT15_10_IRQHandler               /* EXINT Line [15:10]                      */
-  .word  ERTCAlarm_IRQHandler                /* ERTC Alarm through EXINT Line           */
-  .word  OTGFS1_WKUP_IRQHandler              /* OTGFS1 Wakeup from suspend              */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  SDIO1_IRQHandler                    /* SDIO1                                   */
-  .word  TMR5_GLOBAL_IRQHandler              /* TMR5                                    */
-  .word  0                                   /* Reserved                                */
-  .word  UART4_IRQHandler                    /* UART4                                   */
-  .word  UART5_IRQHandler                    /* UART5                                   */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  DMA2_Channel1_IRQHandler            /* DMA2 Channel1                           */
-  .word  DMA2_Channel2_IRQHandler            /* DMA2 Channel2                           */
-  .word  DMA2_Channel3_IRQHandler            /* DMA2 Channel3                           */
-  .word  DMA2_Channel4_5_IRQHandler          /* DMA2 Channel4 & Channel5                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  OTGFS1_IRQHandler                   /* OTGFS1                                  */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  CMP1_IRQHandler                     /* CMP1                                    */
-  .word  CMP2_IRQHandler                     /* CMP2                                    */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  DMA2_Channel6_7_IRQHandler          /* DMA2 Channel6 & Channel7                */
-
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-   .weak      NMI_Handler
-   .thumb_set NMI_Handler,Default_Handler
-
-   .weak      HardFault_Handler
-   .thumb_set HardFault_Handler,Default_Handler
-
-   .weak      MemManage_Handler
-   .thumb_set MemManage_Handler,Default_Handler
-
-   .weak      BusFault_Handler
-   .thumb_set BusFault_Handler,Default_Handler
-
-   .weak      UsageFault_Handler
-   .thumb_set UsageFault_Handler,Default_Handler
-
-   .weak      SVC_Handler
-   .thumb_set SVC_Handler,Default_Handler
-
-   .weak      DebugMon_Handler
-   .thumb_set DebugMon_Handler,Default_Handler
-
-   .weak      PendSV_Handler
-   .thumb_set PendSV_Handler,Default_Handler
-
-   .weak      SysTick_Handler
-   .thumb_set SysTick_Handler,Default_Handler
-
-   .weak      WWDT_IRQHandler
-   .thumb_set WWDT_IRQHandler,Default_Handler
-
-   .weak      PVM_IRQHandler
-   .thumb_set PVM_IRQHandler,Default_Handler
-
-   .weak      TAMP_STAMP_IRQHandler
-   .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
-
-   .weak      ERTC_WKUP_IRQHandler
-   .thumb_set ERTC_WKUP_IRQHandler,Default_Handler
-
-   .weak      FLASH_IRQHandler
-   .thumb_set FLASH_IRQHandler,Default_Handler
-
-   .weak      CRM_IRQHandler
-   .thumb_set CRM_IRQHandler,Default_Handler
-
-   .weak      EXINT0_IRQHandler
-   .thumb_set EXINT0_IRQHandler,Default_Handler
-
-   .weak      EXINT1_IRQHandler
-   .thumb_set EXINT1_IRQHandler,Default_Handler
-
-   .weak      EXINT2_IRQHandler
-   .thumb_set EXINT2_IRQHandler,Default_Handler
-
-   .weak      EXINT3_IRQHandler
-   .thumb_set EXINT3_IRQHandler,Default_Handler
-
-   .weak      EXINT4_IRQHandler
-   .thumb_set EXINT4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel1_IRQHandler
-   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel2_IRQHandler
-   .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel3_IRQHandler
-   .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel4_IRQHandler
-   .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel5_IRQHandler
-   .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel6_IRQHandler
-   .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel7_IRQHandler
-   .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
-
-   .weak      ADC1_IRQHandler
-   .thumb_set ADC1_IRQHandler,Default_Handler
-
-   .weak      CAN1_TX_IRQHandler
-   .thumb_set CAN1_TX_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX0_IRQHandler
-   .thumb_set CAN1_RX0_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX1_IRQHandler
-   .thumb_set CAN1_RX1_IRQHandler,Default_Handler
-
-   .weak      CAN1_SE_IRQHandler
-   .thumb_set CAN1_SE_IRQHandler,Default_Handler
-
-   .weak      EXINT9_5_IRQHandler
-   .thumb_set EXINT9_5_IRQHandler,Default_Handler
-
-   .weak      TMR1_BRK_TMR9_IRQHandler
-   .thumb_set TMR1_BRK_TMR9_IRQHandler,Default_Handler
-
-   .weak      TMR1_OVF_TMR10_IRQHandler
-   .thumb_set TMR1_OVF_TMR10_IRQHandler,Default_Handler
-
-   .weak      TMR1_TRG_HALL_TMR11_IRQHandler
-   .thumb_set TMR1_TRG_HALL_TMR11_IRQHandler,Default_Handler
-
-   .weak      TMR1_CH_IRQHandler
-   .thumb_set TMR1_CH_IRQHandler,Default_Handler
-
-   .weak      TMR2_GLOBAL_IRQHandler
-   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR3_GLOBAL_IRQHandler
-   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR4_GLOBAL_IRQHandler
-   .thumb_set TMR4_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      I2C1_EVT_IRQHandler
-   .thumb_set I2C1_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C1_ERR_IRQHandler
-   .thumb_set I2C1_ERR_IRQHandler,Default_Handler
-
-   .weak      I2C2_EVT_IRQHandler
-   .thumb_set I2C2_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C2_ERR_IRQHandler
-   .thumb_set I2C2_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI1_IRQHandler
-   .thumb_set SPI1_IRQHandler,Default_Handler
-
-   .weak      SPI2_IRQHandler
-   .thumb_set SPI2_IRQHandler,Default_Handler
-
-   .weak      USART1_IRQHandler
-   .thumb_set USART1_IRQHandler,Default_Handler
-
-   .weak      USART2_IRQHandler
-   .thumb_set USART2_IRQHandler,Default_Handler
-
-   .weak      USART3_IRQHandler
-   .thumb_set USART3_IRQHandler,Default_Handler
-
-   .weak      EXINT15_10_IRQHandler
-   .thumb_set EXINT15_10_IRQHandler,Default_Handler
-
-   .weak      ERTCAlarm_IRQHandler
-   .thumb_set ERTCAlarm_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_WKUP_IRQHandler
-   .thumb_set OTGFS1_WKUP_IRQHandler,Default_Handler
-
-   .weak      SDIO1_IRQHandler
-   .thumb_set SDIO1_IRQHandler,Default_Handler
-
-   .weak      TMR5_GLOBAL_IRQHandler
-   .thumb_set TMR5_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      UART4_IRQHandler
-   .thumb_set UART4_IRQHandler,Default_Handler
-
-   .weak      UART5_IRQHandler
-   .thumb_set UART5_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel1_IRQHandler
-   .thumb_set DMA2_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel2_IRQHandler
-   .thumb_set DMA2_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel3_IRQHandler
-   .thumb_set DMA2_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel4_5_IRQHandler
-   .thumb_set DMA2_Channel4_5_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_IRQHandler
-   .thumb_set OTGFS1_IRQHandler,Default_Handler
-
-   .weak      CMP1_IRQHandler
-   .thumb_set CMP1_IRQHandler,Default_Handler
-
-   .weak      CMP2_IRQHandler
-   .thumb_set CMP2_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel6_7_IRQHandler
-   .thumb_set DMA2_Channel6_7_IRQHandler,Default_Handler
diff --git a/hw/bsp/at32f423/boards/AT_START_F423/AT32F423xC_FLASH.ld b/hw/bsp/at32f423/boards/AT_START_F423/AT32F423xC_FLASH.ld
deleted file mode 100644
index ee08e979a..000000000
--- a/hw/bsp/at32f423/boards/AT_START_F423/AT32F423xC_FLASH.ld
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : AT32F423xC_FLASH.ld
-**
-**  Abstract    : Linker script for AT32F423xC Device with
-**                256KByte FLASH, 48KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**  Target      : Artery Tek AT32
-**
-**  Environment : Arm gcc toolchain
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x2000C000;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 256K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 48K
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data :
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss section */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(8);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(8);
-  } >RAM
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}
diff --git a/hw/bsp/at32f423/boards/AT_START_F423/board.cmake b/hw/bsp/at32f423/boards/AT_START_F423/board.cmake
index 45aa39900..f97a12194 100644
--- a/hw/bsp/at32f423/boards/AT_START_F423/board.cmake
+++ b/hw/bsp/at32f423/boards/AT_START_F423/board.cmake
@@ -1,4 +1,6 @@
 set(MCU_VARIANT AT32F423VCT7)
+set(MCU_LINKER_NAME AT32F423xC)
+
 set(JLINK_DEVICE ${MCU_VARIANT})
 
 function(update_board TARGET)
diff --git a/hw/bsp/at32f423/boards/AT_START_F423/board.mk b/hw/bsp/at32f423/boards/AT_START_F423/board.mk
index 4c19c81bb..f7ef2117d 100644
--- a/hw/bsp/at32f423/boards/AT_START_F423/board.mk
+++ b/hw/bsp/at32f423/boards/AT_START_F423/board.mk
@@ -1,5 +1,7 @@
-JLINK_DEVICE = AT32F423VCT7
-LD_FILE = $(BOARD_PATH)/AT32F423xC_FLASH.ld
+MCU_VARIANT = AT32F423VCT7
+MCU_LINKER_NAME = AT32F423xC
+
+JLINK_DEVICE = ${MCU_VARIANT}
 
 CFLAGS += \
-  -DAT32F423VCT7
+  -D${MCU_VARIANT}
diff --git a/hw/bsp/at32f423/family.cmake b/hw/bsp/at32f423/family.cmake
index 3845f13ad..17c3f37a2 100644
--- a/hw/bsp/at32f423/family.cmake
+++ b/hw/bsp/at32f423/family.cmake
@@ -1,9 +1,9 @@
 include_guard()
 
-set(AT_FAMILY at32f423)
-set(AT_SDK_LIB ${TOP}/hw/mcu/artery/${AT_FAMILY}/libraries)
+set(AT32_FAMILY at32f423)
+set(AT32_SDK_LIB ${TOP}/hw/mcu/artery/${AT32_FAMILY}/libraries)
 
-string(TOUPPER ${AT_FAMILY} AT_FAMILY_UPPER)
+string(TOUPPER ${AT32_FAMILY} AT32_FAMILY_UPPER)
 
 # include board specific
 include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
@@ -12,15 +12,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 set(CMAKE_SYSTEM_CPU cortex-m4 CACHE INTERNAL "System Processor")
 set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
-set(FAMILY_MCUS ${AT_FAMILY_UPPER} CACHE INTERNAL "")
-
-# extract variant linker name
-string(LENGTH ${MCU_VARIANT} MCU_VARIANT_LEN)
-math(EXPR MCU_FLASH_CODE_INDEX "${MCU_VARIANT_LEN} - 3")
-math(EXPR MCU_VARIANT_PREFIX_LEN "${MCU_FLASH_CODE_INDEX} - 1")
-string(SUBSTRING ${MCU_VARIANT} ${MCU_FLASH_CODE_INDEX} 1 MCU_FLASH_CODE)
-string(SUBSTRING ${MCU_VARIANT} 0 ${MCU_VARIANT_PREFIX_LEN} MCU_VARIANT_PREFIX)
-set(MCU_LINKER_NAME ${MCU_VARIANT_PREFIX}x${MCU_FLASH_CODE})
+set(FAMILY_MCUS ${AT32_FAMILY_UPPER} CACHE INTERNAL "")
 
 #------------------------------------
 # BOARD_TARGET
@@ -32,30 +24,30 @@ function(add_board_target BOARD_TARGET)
   endif ()
 
   # Startup & Linker script
-  set(STARTUP_FILE_GNU ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/startup_${AT_FAMILY}.s)
+  set(STARTUP_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s)
   set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
-  set(STARTUP_FILE_IAR ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT_FAMILY}.s)
+  set(STARTUP_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s)
 
   if (NOT DEFINED LD_FILE_GNU)
-    set(LD_FILE_GNU ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
+    set(LD_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
   endif ()
   set(LD_FILE_Clang ${LD_FILE_GNU})
-  set(LD_FILE_IAR ${AT_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
+  set(LD_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
 
   add_library(${BOARD_TARGET} STATIC
-    ${AT_SDK_LIB}/cmsis/cm4/device_support/system_${AT_FAMILY}.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_gpio.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_misc.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_usart.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_acc.c
-    ${AT_SDK_LIB}/drivers/src/${AT_FAMILY}_crm.c
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_gpio.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_misc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_usart.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_acc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_crm.c
     ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
     )
   target_include_directories(${BOARD_TARGET} PUBLIC
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
-    ${AT_SDK_LIB}/cmsis/cm4/core_support
-    ${AT_SDK_LIB}/cmsis/cm4/device_support
-    ${AT_SDK_LIB}/drivers/inc
+    ${AT32_SDK_LIB}/cmsis/cm4/core_support
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support
+    ${AT32_SDK_LIB}/drivers/inc
     )
 
   update_board(${BOARD_TARGET})
@@ -93,8 +85,8 @@ function(family_configure_example TARGET RTOS)
     # BSP
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
     ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
-    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT_FAMILY}_clock.c
-    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT_FAMILY}_int.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_clock.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_int.c
     )
   target_include_directories(${TARGET} PUBLIC
     # family, hw, board
@@ -104,7 +96,7 @@ function(family_configure_example TARGET RTOS)
     )
 
   # Add TinyUSB target and port source
-  family_add_tinyusb(${TARGET} OPT_MCU_${AT_FAMILY_UPPER})
+  family_add_tinyusb(${TARGET} OPT_MCU_${AT32_FAMILY_UPPER})
   target_sources(${TARGET} PUBLIC
     ${TOP}/src/portable/synopsys/dwc2/dcd_dwc2.c
     ${TOP}/src/portable/synopsys/dwc2/hcd_dwc2.c
diff --git a/hw/bsp/at32f423/family.mk b/hw/bsp/at32f423/family.mk
index 8ee1072be..960f4a9a1 100644
--- a/hw/bsp/at32f423/family.mk
+++ b/hw/bsp/at32f423/family.mk
@@ -1,9 +1,5 @@
-JLINK_DEVICE = AT32F423VCT7
-
-AT32F423_SDK = hw/mcu/artery/at32f423
-
-# AT32 SDK path
-AT32F423_SDK_SRC = $(AT32F423_SDK)/libraries
+AT32_FAMILY = at32f423
+AT32_SDK_LIB = hw/mcu/artery/${AT32_FAMILY}/libraries
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
@@ -22,23 +18,23 @@ SRC_C += \
 	src/portable/synopsys/dwc2/dcd_dwc2.c \
 	src/portable/synopsys/dwc2/hcd_dwc2.c \
 	src/portable/synopsys/dwc2/dwc2_common.c \
-	$(AT32F423_SDK_SRC)/drivers/src/at32f423_gpio.c \
-	$(AT32F423_SDK_SRC)/drivers/src/at32f423_misc.c \
-	$(AT32F423_SDK_SRC)/drivers/src/at32f423_usart.c \
-	$(AT32F423_SDK_SRC)/drivers/src/at32f423_crm.c \
-	$(AT32F423_SDK_SRC)/drivers/src/at32f423_acc.c \
-	$(AT32F423_SDK_SRC)/cmsis/cm4/device_support/system_at32f423.c
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_gpio.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_misc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_usart.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_crm.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_acc.c \
+	$(AT32_SDK_LIB)/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(AT32F423_SDK_SRC)/drivers/inc \
-	$(TOP)/$(AT32F423_SDK_SRC)/cmsis/cm4/core_support \
-	$(TOP)/$(AT32F423_SDK_SRC)/cmsis/cm4/device_support
+	$(TOP)/$(AT32_SDK_LIB)/drivers/inc \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/core_support \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/device_support
 
-SRC_S += \
-	$(FAMILY_PATH)/startup_at32f423.s
+SRC_S_GCC += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s
+SRC_S_IAR += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s
 
-# For freeRTOS port source
-#FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4
+LD_FILE_GCC ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld
+LD_FILE_IAR ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf
 
 flash: flash-atlink
diff --git a/hw/bsp/at32f423/startup_at32f423.s b/hw/bsp/at32f423/startup_at32f423.s
deleted file mode 100644
index 3e5404009..000000000
--- a/hw/bsp/at32f423/startup_at32f423.s
+++ /dev/null
@@ -1,483 +0,0 @@
-/**
-  ******************************************************************************
-  * @file     startup_at32f423.s
-  * @brief    at32f423 devices vector table for gcc toolchain.
-  *           this module performs:
-  *           - set the initial sp
-  *           - set the initial pc == reset_handler,
-  *           - set the vector table entries with the exceptions isr address
-  *           - configure the clock system and the external sram to
-  *             be used as data memory (optional, to be enabled by user)
-  *           - branches to main in the c library (which eventually
-  *             calls main()).
-  *           after reset the cortex-m4 processor is in thread mode,
-  *           priority is privileged, and the stack is set to main.
-  ******************************************************************************
-  */
-
-  .syntax unified
-  .cpu cortex-m4
-  .fpu softvfp
-  .thumb
-
-.global  g_pfnVectors
-.global  Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word  _sidata
-/* start address for the .data section. defined in linker script */
-.word  _sdata
-/* end address for the .data section. defined in linker script */
-.word  _edata
-/* start address for the .bss section. defined in linker script */
-.word  _sbss
-/* end address for the .bss section. defined in linker script */
-.word  _ebss
-/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
-
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval None
-*/
-
-    .section  .text.Reset_Handler
-  .weak  Reset_Handler
-  .type  Reset_Handler, %function
-Reset_Handler:
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs  r1, #0
-  b  LoopCopyDataInit
-
-CopyDataInit:
-  ldr  r3, =_sidata
-  ldr  r3, [r3, r1]
-  str  r3, [r0, r1]
-  adds  r1, r1, #4
-
-LoopCopyDataInit:
-  ldr  r0, =_sdata
-  ldr  r3, =_edata
-  adds  r2, r0, r1
-  cmp  r2, r3
-  bcc  CopyDataInit
-  ldr  r2, =_sbss
-  b  LoopFillZerobss
-/* Zero fill the bss segment. */
-FillZerobss:
-  movs  r3, #0
-  str  r3, [r2], #4
-
-LoopFillZerobss:
-  ldr  r3, = _ebss
-  cmp  r2, r3
-  bcc  FillZerobss
-
-/* Call the clock system initialization function.*/
-  bl  SystemInit
-/* Call static constructors */
-  bl __libc_init_array
-/* Call the application's entry point.*/
-  bl  main
-  bx  lr
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- * @param  None
- * @retval None
-*/
-    .section  .text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-  b  Infinite_Loop
-  .size  Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex M3. Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-*******************************************************************************/
-   .section  .isr_vector,"a",%progbits
-  .type  g_pfnVectors, %object
-  .size  g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-  .word  _estack
-  .word  Reset_Handler
-  .word  NMI_Handler
-  .word  HardFault_Handler
-  .word  MemManage_Handler
-  .word  BusFault_Handler
-  .word  UsageFault_Handler
-  .word  0
-  .word  0
-  .word  0
-  .word  0
-  .word  SVC_Handler
-  .word  DebugMon_Handler
-  .word  0
-  .word  PendSV_Handler
-  .word  SysTick_Handler
-
-  /* External Interrupts */
-  .word  WWDT_IRQHandler                     /* Window Watchdog Timer                   */
-  .word  PVM_IRQHandler                      /* PVM through EXINT Line detect           */
-  .word  TAMP_STAMP_IRQHandler               /* Tamper and TimeStamps through the EXINT line */
-  .word  ERTC_WKUP_IRQHandler                /* ERTC Wakeup through the EXINT line      */
-  .word  FLASH_IRQHandler                    /* Flash                                   */
-  .word  CRM_IRQHandler                      /* CRM                                     */
-  .word  EXINT0_IRQHandler                   /* EXINT Line 0                            */
-  .word  EXINT1_IRQHandler                   /* EXINT Line 1                            */
-  .word  EXINT2_IRQHandler                   /* EXINT Line 2                            */
-  .word  EXINT3_IRQHandler                   /* EXINT Line 3                            */
-  .word  EXINT4_IRQHandler                   /* EXINT Line 4                            */
-  .word  DMA1_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA1_Channel2_IRQHandler            /* DMA1 Channel 2                          */
-  .word  DMA1_Channel3_IRQHandler            /* DMA1 Channel 3                          */
-  .word  DMA1_Channel4_IRQHandler            /* DMA1 Channel 4                          */
-  .word  DMA1_Channel5_IRQHandler            /* DMA1 Channel 5                          */
-  .word  DMA1_Channel6_IRQHandler            /* DMA1 Channel 6                          */
-  .word  DMA1_Channel7_IRQHandler            /* DMA1 Channel 7                          */
-  .word  ADC1_IRQHandler                     /* ADC1                                    */
-  .word  CAN1_TX_IRQHandler                  /* CAN1 TX                                 */
-  .word  CAN1_RX0_IRQHandler                 /* CAN1 RX0                                */
-  .word  CAN1_RX1_IRQHandler                 /* CAN1 RX1                                */
-  .word  CAN1_SE_IRQHandler                  /* CAN1 SE                                 */
-  .word  EXINT9_5_IRQHandler                 /* EXINT Line [9:5]                        */
-  .word  TMR1_BRK_TMR9_IRQHandler            /* TMR1 Brake and TMR9                     */
-  .word  TMR1_OVF_TMR10_IRQHandler           /* TMR1 Overflow and TMR10                 */
-  .word  TMR1_TRG_HALL_TMR11_IRQHandler      /* TMR1 Trigger and hall and TMR11         */
-  .word  TMR1_CH_IRQHandler                  /* TMR1 Channel                            */
-  .word  TMR2_GLOBAL_IRQHandler              /* TMR2                                    */
-  .word  TMR3_GLOBAL_IRQHandler              /* TMR3                                    */
-  .word  TMR4_GLOBAL_IRQHandler              /* TMR4                                    */
-  .word  I2C1_EVT_IRQHandler                 /* I2C1 Event                              */
-  .word  I2C1_ERR_IRQHandler                 /* I2C1 Error                              */
-  .word  I2C2_EVT_IRQHandler                 /* I2C2 Event                              */
-  .word  I2C2_ERR_IRQHandler                 /* I2C2 Error                              */
-  .word  SPI1_IRQHandler                     /* SPI1                                    */
-  .word  SPI2_IRQHandler                     /* SPI2                                    */
-  .word  USART1_IRQHandler                   /* USART1                                  */
-  .word  USART2_IRQHandler                   /* USART2                                  */
-  .word  USART3_IRQHandler                   /* USART3                                  */
-  .word  EXINT15_10_IRQHandler               /* EXINT Line [15:10]                      */
-  .word  ERTCAlarm_IRQHandler                /* RTC Alarm through EXINT Line            */
-  .word  OTGFS1_WKUP_IRQHandler              /* OTGFS1 Wakeup from suspend              */
-  .word  TMR12_GLOBAL_IRQHandler             /* TMR12                                   */
-  .word  TMR13_GLOBAL_IRQHandler             /* TMR13                                   */
-  .word  TMR14_GLOBAL_IRQHandler             /* TMR14                                   */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  SPI3_IRQHandler                     /* SPI3                                    */
-  .word  USART4_IRQHandler                   /* USART4                                  */
-  .word  USART5_IRQHandler                   /* USART5                                  */
-  .word  TMR6_DAC_GLOBAL_IRQHandler          /* TMR6 & DAC                              */
-  .word  TMR7_GLOBAL_IRQHandler              /* TMR7                                    */
-  .word  DMA2_Channel1_IRQHandler            /* DMA2 Channel 1                          */
-  .word  DMA2_Channel2_IRQHandler            /* DMA2 Channel 2                          */
-  .word  DMA2_Channel3_IRQHandler            /* DMA2 Channel 3                          */
-  .word  DMA2_Channel4_IRQHandler            /* DMA2 Channel 4                          */
-  .word  DMA2_Channel5_IRQHandler            /* DMA2 Channel 5                          */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  CAN2_TX_IRQHandler                  /* CAN2 TX                                 */
-  .word  CAN2_RX0_IRQHandler                 /* CAN2 RX0                                */
-  .word  CAN2_RX1_IRQHandler                 /* CAN2 RX1                                */
-  .word  CAN2_SE_IRQHandler                  /* CAN2 SE                                 */
-  .word  OTGFS1_IRQHandler                   /* OTGFS1                                  */
-  .word  DMA2_Channel6_IRQHandler            /* DMA2 Channel 6                          */
-  .word  DMA2_Channel7_IRQHandler            /* DMA2 Channel 7                          */
-  .word  0                                   /* Reserved                                */
-  .word  USART6_IRQHandler                   /* USART6                                  */
-  .word  I2C3_EVT_IRQHandler                 /* I2C3 Event                              */
-  .word  I2C3_ERR_IRQHandler                 /* I2C3 Error                              */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  FPU_IRQHandler                      /* FPU                                     */
-  .word  USART7_IRQHandler                   /* USART7                                  */
-  .word  USART8_IRQHandler                   /* USART8                                  */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  DMAMUX_IRQHandler                   /* DMAMUX                                  */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  ACC_IRQHandler                      /* ACC                                     */
-
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-   .weak      NMI_Handler
-   .thumb_set NMI_Handler,Default_Handler
-
-   .weak      HardFault_Handler
-   .thumb_set HardFault_Handler,Default_Handler
-
-   .weak      MemManage_Handler
-   .thumb_set MemManage_Handler,Default_Handler
-
-   .weak      BusFault_Handler
-   .thumb_set BusFault_Handler,Default_Handler
-
-   .weak      UsageFault_Handler
-   .thumb_set UsageFault_Handler,Default_Handler
-
-   .weak      SVC_Handler
-   .thumb_set SVC_Handler,Default_Handler
-
-   .weak      DebugMon_Handler
-   .thumb_set DebugMon_Handler,Default_Handler
-
-   .weak      PendSV_Handler
-   .thumb_set PendSV_Handler,Default_Handler
-
-   .weak      SysTick_Handler
-   .thumb_set SysTick_Handler,Default_Handler
-
-   .weak      WWDT_IRQHandler
-   .thumb_set WWDT_IRQHandler,Default_Handler
-
-   .weak      PVM_IRQHandler
-   .thumb_set PVM_IRQHandler,Default_Handler
-
-   .weak      TAMP_STAMP_IRQHandler
-   .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
-
-   .weak      ERTC_WKUP_IRQHandler
-   .thumb_set ERTC_WKUP_IRQHandler,Default_Handler
-
-   .weak      FLASH_IRQHandler
-   .thumb_set FLASH_IRQHandler,Default_Handler
-
-   .weak      CRM_IRQHandler
-   .thumb_set CRM_IRQHandler,Default_Handler
-
-   .weak      EXINT0_IRQHandler
-   .thumb_set EXINT0_IRQHandler,Default_Handler
-
-   .weak      EXINT1_IRQHandler
-   .thumb_set EXINT1_IRQHandler,Default_Handler
-
-   .weak      EXINT2_IRQHandler
-   .thumb_set EXINT2_IRQHandler,Default_Handler
-
-   .weak      EXINT3_IRQHandler
-   .thumb_set EXINT3_IRQHandler,Default_Handler
-
-   .weak      EXINT4_IRQHandler
-   .thumb_set EXINT4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel1_IRQHandler
-   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel2_IRQHandler
-   .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel3_IRQHandler
-   .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel4_IRQHandler
-   .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel5_IRQHandler
-   .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel6_IRQHandler
-   .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel7_IRQHandler
-   .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
-
-   .weak      ADC1_IRQHandler
-   .thumb_set ADC1_IRQHandler,Default_Handler
-
-   .weak      CAN1_TX_IRQHandler
-   .thumb_set CAN1_TX_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX0_IRQHandler
-   .thumb_set CAN1_RX0_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX1_IRQHandler
-   .thumb_set CAN1_RX1_IRQHandler,Default_Handler
-
-   .weak      CAN1_SE_IRQHandler
-   .thumb_set CAN1_SE_IRQHandler,Default_Handler
-
-   .weak      EXINT9_5_IRQHandler
-   .thumb_set EXINT9_5_IRQHandler,Default_Handler
-
-   .weak      TMR1_BRK_TMR9_IRQHandler
-   .thumb_set TMR1_BRK_TMR9_IRQHandler,Default_Handler
-
-   .weak      TMR1_OVF_TMR10_IRQHandler
-   .thumb_set TMR1_OVF_TMR10_IRQHandler,Default_Handler
-
-   .weak      TMR1_TRG_HALL_TMR11_IRQHandler
-   .thumb_set TMR1_TRG_HALL_TMR11_IRQHandler,Default_Handler
-
-   .weak      TMR1_CH_IRQHandler
-   .thumb_set TMR1_CH_IRQHandler,Default_Handler
-
-   .weak      TMR2_GLOBAL_IRQHandler
-   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR3_GLOBAL_IRQHandler
-   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR4_GLOBAL_IRQHandler
-   .thumb_set TMR4_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      I2C1_EVT_IRQHandler
-   .thumb_set I2C1_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C1_ERR_IRQHandler
-   .thumb_set I2C1_ERR_IRQHandler,Default_Handler
-
-   .weak      I2C2_EVT_IRQHandler
-   .thumb_set I2C2_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C2_ERR_IRQHandler
-   .thumb_set I2C2_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI1_IRQHandler
-   .thumb_set SPI1_IRQHandler,Default_Handler
-
-   .weak      SPI2_IRQHandler
-   .thumb_set SPI2_IRQHandler,Default_Handler
-
-   .weak      USART1_IRQHandler
-   .thumb_set USART1_IRQHandler,Default_Handler
-
-   .weak      USART2_IRQHandler
-   .thumb_set USART2_IRQHandler,Default_Handler
-
-   .weak      USART3_IRQHandler
-   .thumb_set USART3_IRQHandler,Default_Handler
-
-   .weak      EXINT15_10_IRQHandler
-   .thumb_set EXINT15_10_IRQHandler,Default_Handler
-
-   .weak      ERTCAlarm_IRQHandler
-   .thumb_set ERTCAlarm_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_WKUP_IRQHandler
-   .thumb_set OTGFS1_WKUP_IRQHandler,Default_Handler
-
-   .weak      TMR12_GLOBAL_IRQHandler
-   .thumb_set TMR12_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR13_GLOBAL_IRQHandler
-   .thumb_set TMR13_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR14_GLOBAL_IRQHandler
-   .thumb_set TMR14_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      SPI3_IRQHandler
-   .thumb_set SPI3_IRQHandler,Default_Handler
-
-   .weak      USART4_IRQHandler
-   .thumb_set USART4_IRQHandler,Default_Handler
-
-   .weak      USART5_IRQHandler
-   .thumb_set USART5_IRQHandler,Default_Handler
-
-   .weak      TMR6_DAC_GLOBAL_IRQHandler
-   .thumb_set TMR6_DAC_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR7_GLOBAL_IRQHandler
-   .thumb_set TMR7_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel1_IRQHandler
-   .thumb_set DMA2_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel2_IRQHandler
-   .thumb_set DMA2_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel3_IRQHandler
-   .thumb_set DMA2_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel4_IRQHandler
-   .thumb_set DMA2_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel5_IRQHandler
-   .thumb_set DMA2_Channel5_IRQHandler,Default_Handler
-
-   .weak      CAN2_TX_IRQHandler
-   .thumb_set CAN2_TX_IRQHandler,Default_Handler
-
-   .weak      CAN2_RX0_IRQHandler
-   .thumb_set CAN2_RX0_IRQHandler ,Default_Handler
-
-   .weak      CAN2_RX1_IRQHandler
-   .thumb_set CAN2_RX1_IRQHandler ,Default_Handler
-
-   .weak      CAN2_SE_IRQHandler
-   .thumb_set CAN2_SE_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_IRQHandler
-   .thumb_set OTGFS1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel6_IRQHandler
-   .thumb_set DMA2_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel7_IRQHandler
-   .thumb_set DMA2_Channel7_IRQHandler,Default_Handler
-
-   .weak      USART6_IRQHandler
-   .thumb_set USART6_IRQHandler,Default_Handler
-
-   .weak      I2C3_EVT_IRQHandler
-   .thumb_set I2C3_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C3_ERR_IRQHandler
-   .thumb_set I2C3_ERR_IRQHandler,Default_Handler
-
-   .weak      FPU_IRQHandler
-   .thumb_set FPU_IRQHandler,Default_Handler
-
-   .weak      USART7_IRQHandler
-   .thumb_set USART7_IRQHandler,Default_Handler
-
-   .weak      USART8_IRQHandler
-   .thumb_set USART8_IRQHandler,Default_Handler
-
-   .weak      DMAMUX_IRQHandler
-   .thumb_set DMAMUX_IRQHandler ,Default_Handler
-
-   .weak      ACC_IRQHandler
-   .thumb_set ACC_IRQHandler,Default_Handler
diff --git a/hw/bsp/at32f425/boards/AT_START_F425/AT32F425x8_FLASH.ld b/hw/bsp/at32f425/boards/AT_START_F425/AT32F425x8_FLASH.ld
deleted file mode 100644
index b1d767b51..000000000
--- a/hw/bsp/at32f425/boards/AT_START_F425/AT32F425x8_FLASH.ld
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : AT32F425x8_FLASH.ld
-**
-**  Abstract    : Linker script for AT32F425x8 Device with
-**                64KByte FLASH, 16KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**
-**  Environment : Arm gcc toolchain
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20005000;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 64K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 20K
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data :
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss section */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(8);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(8);
-  } >RAM
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}
diff --git a/hw/bsp/at32f425/boards/AT_START_F425/board.cmake b/hw/bsp/at32f425/boards/AT_START_F425/board.cmake
new file mode 100644
index 000000000..535bb3cb4
--- /dev/null
+++ b/hw/bsp/at32f425/boards/AT_START_F425/board.cmake
@@ -0,0 +1,12 @@
+set(MCU_VARIANT AT32F425R8T7)
+set(MCU_LINKER_NAME AT32F425x8)
+
+set(JLINK_DEVICE ${MCU_VARIANT})
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    ${MCU_VARIANT}
+    CFG_EXAMPLE_VIDEO_READONLY
+    CFG_EXAMPLE_MSC_READONLY
+    )
+endfunction()
diff --git a/hw/bsp/at32f425/boards/AT_START_F425/board.mk b/hw/bsp/at32f425/boards/AT_START_F425/board.mk
index 3fa74d95a..f7aeba1db 100644
--- a/hw/bsp/at32f425/boards/AT_START_F425/board.mk
+++ b/hw/bsp/at32f425/boards/AT_START_F425/board.mk
@@ -1,4 +1,9 @@
-LD_FILE = $(BOARD_PATH)/AT32F425x8_FLASH.ld
+MCU_VARIANT = AT32F425R8T7
+MCU_LINKER_NAME = AT32F425x8
+
+JLINK_DEVICE = ${MCU_VARIANT}
 
 CFLAGS += \
-  -DAT32F425R8T7
+  -D${MCU_VARIANT} \
+  -DCFG_EXAMPLE_VIDEO_READONLY \
+  -DCFG_EXAMPLE_MSC_READONLY
diff --git a/hw/bsp/at32f425/family.c b/hw/bsp/at32f425/family.c
index 59a485210..26e69bf31 100644
--- a/hw/bsp/at32f425/family.c
+++ b/hw/bsp/at32f425/family.c
@@ -25,8 +25,8 @@
  */
 
 #include "at32f425_clock.h"
-#include "bsp/board_api.h"
 #include "board.h"
+#include "bsp/board_api.h"
 
 void uart_print_init(uint32_t baudrate);
 void usb_clock48m_select(usb_clk48_s clk_s);
@@ -35,17 +35,14 @@ void led_and_button_init(void);
 //--------------------------------------------------------------------+
 // Forward USB interrupt events to TinyUSB IRQ Handler
 //--------------------------------------------------------------------+
-void OTGFS1_IRQHandler(void)
-{
+void OTGFS1_IRQHandler(void) {
   tusb_int_handler(0, true);
 }
-void OTGFS1_WKUP_IRQHandler(void)
-{
+void OTGFS1_WKUP_IRQHandler(void) {
   tusb_int_handler(0, true);
 }
 
-void board_init(void)
-{
+void board_init(void) {
   /* config nvic priority group */
   nvic_priority_group_config(NVIC_PRIORITY_GROUP_4);
 
@@ -64,24 +61,24 @@ void board_init(void)
   /* configure systick */
   systick_clock_source_config(SYSTICK_CLOCK_SOURCE_AHBCLK_NODIV);
   SysTick_Config(SystemCoreClock / 1000);
-  #if CFG_TUSB_OS == OPT_OS_FREERTOS
-    // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-    NVIC_SetPriority(OTG_IRQ, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
-  #endif
+#if CFG_TUSB_OS == OPT_OS_FREERTOS
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+  NVIC_SetPriority(OTG_IRQ, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
+#endif
 
-  /* otgfs use vbus pin */
-  #ifndef USB_VBUS_IGNORE
-    gpio_init_type gpio_init_struct;
-    crm_periph_clock_enable(OTG_PIN_GPIO_CLOCK, TRUE);
-    gpio_default_para_init(&gpio_init_struct);
-    gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-    gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
-    gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
-    gpio_init_struct.gpio_pins = OTG_PIN_VBUS;
-    gpio_init_struct.gpio_pull = GPIO_PULL_DOWN;
-    gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_VBUS_SOURCE, OTG_PIN_MUX);
-    gpio_init(OTG_PIN_GPIO, &gpio_init_struct);
-  #endif
+/* otgfs use vbus pin */
+#ifndef USB_VBUS_IGNORE
+  gpio_init_type gpio_init_struct;
+  crm_periph_clock_enable(OTG_PIN_GPIO_CLOCK, TRUE);
+  gpio_default_para_init(&gpio_init_struct);
+  gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
+  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
+  gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
+  gpio_init_struct.gpio_pins = OTG_PIN_VBUS;
+  gpio_init_struct.gpio_pull = GPIO_PULL_DOWN;
+  gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_VBUS_SOURCE, OTG_PIN_MUX);
+  gpio_init(OTG_PIN_GPIO, &gpio_init_struct);
+#endif
 
   /* config led and key */
   led_and_button_init();
@@ -99,10 +96,8 @@ void board_init(void)
   * @param  clk_s:USB_CLK_HICK, USB_CLK_HEXT
   * @retval none
   */
-void usb_clock48m_select(usb_clk48_s clk_s)
-{
-  if(clk_s == USB_CLK_HICK)
-  {
+void usb_clock48m_select(usb_clk48_s clk_s) {
+  if (clk_s == USB_CLK_HICK) {
     crm_usb_clock_source_select(CRM_USB_CLOCK_SOURCE_HICK);
 
     /* enable the acc calibration ready interrupt */
@@ -115,14 +110,11 @@ void usb_clock48m_select(usb_clk48_s clk_s)
 
     /* open acc calibration */
     acc_calibration_mode_enable(ACC_CAL_HICKTRIM, TRUE);
-  }
-  else
-  {
-	/* usb divider reset */
+  } else {
+    /* usb divider reset */
     crm_usb_div_reset();
 
-    switch(system_core_clock)
-    {
+    switch (system_core_clock) {
       /* 48MHz */
       case 48000000:
         crm_usb_clock_div_set(CRM_USB_DIV_1);
@@ -144,8 +136,7 @@ void usb_clock48m_select(usb_clk48_s clk_s)
   }
 }
 
-void led_and_button_init(void)
-{
+void led_and_button_init(void) {
   /* LED */
   gpio_init_type gpio_led_init_struct;
   /* enable the led clock */
@@ -154,7 +145,7 @@ void led_and_button_init(void)
   gpio_default_para_init(&gpio_led_init_struct);
   /* configure the led gpio */
   gpio_led_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_led_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_led_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_led_init_struct.gpio_mode = GPIO_MODE_OUTPUT;
   gpio_led_init_struct.gpio_pins = LED_PIN;
   gpio_led_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -179,8 +170,7 @@ void led_and_button_init(void)
   * @param  baudrate: uart baudrate
   * @retval none
   */
-void uart_print_init(uint32_t baudrate)
-{
+void uart_print_init(uint32_t baudrate) {
   gpio_init_type gpio_init_struct;
   /* enable the uart and gpio clock */
   crm_periph_clock_enable(PRINT_UART_CRM_CLK, TRUE);
@@ -188,7 +178,7 @@ void uart_print_init(uint32_t baudrate)
   gpio_default_para_init(&gpio_init_struct);
   /* configure the uart tx pin */
   gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
   gpio_init_struct.gpio_pins = PRINT_UART_TX_PIN;
   gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -201,55 +191,47 @@ void uart_print_init(uint32_t baudrate)
 }
 
 // Get characters from UART. Return number of read bytes
-int board_uart_read(uint8_t *buf, int len)
-{
+int board_uart_read(uint8_t *buf, int len) {
   (void) buf;
   (void) len;
   return 0;
 }
 
 // Send characters to UART. Return number of sent bytes
-int board_uart_write(void const *buf, int len)
-{
-  #if CFG_TUSB_OS == OPT_OS_NONE
-    int txsize = len;
-    u16 timeout = 0xffff;
-    while (txsize--)
-    {
-      while(usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET)
-      {
-        timeout--;
-        if(timeout == 0)
-        {
-          return 0;
-        }
+int board_uart_write(void const *buf, int len) {
+#if CFG_TUSB_OS == OPT_OS_NONE
+  int txsize = len;
+  u16 timeout = 0xffff;
+  while (txsize--) {
+    while (usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET) {
+      timeout--;
+      if (timeout == 0) {
+        return 0;
       }
-      PRINT_UART->dt = (*((uint8_t const *)buf) & 0x01FF);
-      buf++;
     }
-    return len;
-  #else
-    (void) buf;
-    (void) len;
-    return 0;
-  #endif
+    PRINT_UART->dt = (*((uint8_t const *) buf) & 0x01FF);
+    buf++;
+  }
+  return len;
+#else
+  (void) buf;
+  (void) len;
+  return 0;
+#endif
 }
 
-void board_led_write(bool state)
-{
+void board_led_write(bool state) {
   gpio_bits_write(LED_PORT, LED_PIN, state ^ (!LED_STATE_ON));
 }
 
-uint32_t board_button_read(void)
-{
+uint32_t board_button_read(void) {
   return gpio_input_data_bit_read(BUTTON_PORT, BUTTON_PIN);
 }
 
-size_t board_get_unique_id(uint8_t id[], size_t max_len)
-{
+size_t board_get_unique_id(uint8_t id[], size_t max_len) {
   (void) max_len;
-  volatile uint32_t * at32_uuid = ((volatile uint32_t*)0x1FFFF7E8);
-  uint32_t* id32 = (uint32_t*) (uintptr_t) id;
+  volatile uint32_t *at32_uuid = ((volatile uint32_t *) 0x1FFFF7E8);
+  uint32_t *id32 = (uint32_t *) (uintptr_t) id;
   uint8_t const len = 12;
 
   id32[0] = at32_uuid[0];
@@ -262,24 +244,20 @@ size_t board_get_unique_id(uint8_t id[], size_t max_len)
 
 #if CFG_TUSB_OS == OPT_OS_NONE
 
-  volatile uint32_t system_ticks = 0;
-  void SysTick_Handler(void)
-  {
-    system_ticks++;
-  }
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler(void) {
+  system_ticks++;
+}
 
-  uint32_t board_millis(void)
-  {
-    return system_ticks;
-  }
+uint32_t board_millis(void) {
+  return system_ticks;
+}
 
-  void SVC_Handler(void)
-  {
-  }
+void SVC_Handler(void) {
+}
 
-  void PendSV_Handler(void)
-  {
-  }
+void PendSV_Handler(void) {
+}
 #endif
 
 void HardFault_Handler(void) {
@@ -291,9 +269,8 @@ void HardFault_Handler(void) {
 void _init(void) {
 }
 
-#ifdef  USE_FULL_ASSERT
-void assert_failed(const char *file, uint32_t line)
-{
+#ifdef USE_FULL_ASSERT
+void assert_failed(const char *file, uint32_t line) {
   /* USER CODE BEGIN 6 */
   /* User can add his own implementation to report the file name and line number,
      tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
diff --git a/hw/bsp/at32f425/family.cmake b/hw/bsp/at32f425/family.cmake
new file mode 100644
index 000000000..3f6b36a6b
--- /dev/null
+++ b/hw/bsp/at32f425/family.cmake
@@ -0,0 +1,108 @@
+include_guard()
+
+set(AT32_FAMILY at32f425)
+set(AT32_SDK_LIB ${TOP}/hw/mcu/artery/${AT32_FAMILY}/libraries)
+
+string(TOUPPER ${AT32_FAMILY} AT32_FAMILY_UPPER)
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+# toolchain set up
+set(CMAKE_SYSTEM_CPU cortex-m4-nofpu CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+
+set(FAMILY_MCUS ${AT32_FAMILY_UPPER} CACHE INTERNAL "")
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+function(add_board_target BOARD_TARGET)
+  if (TARGET ${BOARD_TARGET})
+    return()
+  endif ()
+
+  # Startup & Linker script
+  set(STARTUP_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s)
+  set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
+  set(STARTUP_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s)
+
+  if (NOT DEFINED LD_FILE_GNU)
+    set(LD_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
+  endif ()
+  set(LD_FILE_Clang ${LD_FILE_GNU})
+  set(LD_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
+
+  add_library(${BOARD_TARGET} STATIC
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_gpio.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_misc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_usart.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_crm.c
+    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${AT32_SDK_LIB}/cmsis/cm4/core_support
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support
+    ${AT32_SDK_LIB}/drivers/inc
+    )
+  update_board(${BOARD_TARGET})
+
+  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -nostartfiles
+      --specs=nosys.specs --specs=nano.specs
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_Clang}"
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_IAR}"
+      )
+  endif ()
+endfunction()
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+function(family_configure_example TARGET RTOS)
+  family_configure_common(${TARGET} ${RTOS})
+
+  # Board target
+  add_board_target(board_${BOARD})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_clock.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_int.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  # Add TinyUSB target and port source
+  family_add_tinyusb(${TARGET} OPT_MCU_${AT32_FAMILY_UPPER})
+  target_sources(${TARGET} PUBLIC
+    ${TOP}/src/portable/synopsys/dwc2/dcd_dwc2.c
+    ${TOP}/src/portable/synopsys/dwc2/hcd_dwc2.c
+    ${TOP}/src/portable/synopsys/dwc2/dwc2_common.c
+    )
+  target_link_libraries(${TARGET} PUBLIC board_${BOARD})
+
+  # Flashing
+  family_add_bin_hex(${TARGET})
+  family_flash_jlink(${TARGET})
+endfunction()
diff --git a/hw/bsp/at32f425/family.mk b/hw/bsp/at32f425/family.mk
index 81d5ffc97..0a0a74414 100644
--- a/hw/bsp/at32f425/family.mk
+++ b/hw/bsp/at32f425/family.mk
@@ -1,12 +1,9 @@
-# Submodules
-AT32F425_SDK = hw/mcu/artery/at32f425
-
-# AT32 SDK path
-AT32F425_SDK_SRC = $(AT32F425_SDK)/libraries
+AT32_FAMILY = at32f425
+AT32_SDK_LIB = hw/mcu/artery/${AT32_FAMILY}/libraries
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
-CPU_CORE ?= cortex-m3
+CPU_CORE ?= cortex-m4-nofpu
 
 CFLAGS_GCC += \
   -flto
@@ -21,22 +18,22 @@ SRC_C += \
 	src/portable/synopsys/dwc2/dcd_dwc2.c \
 	src/portable/synopsys/dwc2/hcd_dwc2.c \
 	src/portable/synopsys/dwc2/dwc2_common.c \
-	$(AT32F425_SDK_SRC)/drivers/src/at32f425_gpio.c \
-	$(AT32F425_SDK_SRC)/drivers/src/at32f425_misc.c \
-	$(AT32F425_SDK_SRC)/drivers/src/at32f425_usart.c \
-	$(AT32F425_SDK_SRC)/drivers/src/at32f425_crm.c \
-	$(AT32F425_SDK_SRC)/cmsis/cm4/device_support/system_at32f425.c
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_gpio.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_misc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_usart.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_crm.c \
+	$(AT32_SDK_LIB)/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(AT32F425_SDK_SRC)/drivers/inc \
-	$(TOP)/$(AT32F425_SDK_SRC)/cmsis/cm4/core_support \
-	$(TOP)/$(AT32F425_SDK_SRC)/cmsis/cm4/device_support
+	$(TOP)/$(AT32_SDK_LIB)/drivers/inc \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/core_support \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/device_support
 
-SRC_S += \
-	$(FAMILY_PATH)/startup_at32f425.s
+SRC_S_GCC += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s
+SRC_S_IAR += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s
 
-# For freeRTOS port source
-#FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4
+LD_FILE_GCC ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld
+LD_FILE_IAR ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf
 
 flash: flash-atlink
diff --git a/hw/bsp/at32f425/startup_at32f425.s b/hw/bsp/at32f425/startup_at32f425.s
deleted file mode 100644
index d41fd3f42..000000000
--- a/hw/bsp/at32f425/startup_at32f425.s
+++ /dev/null
@@ -1,309 +0,0 @@
-/**
-  ******************************************************************************
-  * @file     startup_at32f425.s
-  * @brief    at32f425xx devices vector table for gcc toolchain.
-  *           this module performs:
-  *           - set the initial sp
-  *           - set the initial pc == reset_handler,
-  *           - set the vector table entries with the exceptions isr address
-  *           - configure the clock system and the external sram to
-  *             be used as data memory (optional, to be enabled by user)
-  *           - branches to main in the c library (which eventually
-  *             calls main()).
-  *           after reset the cortex-m4 processor is in thread mode,
-  *           priority is privileged, and the stack is set to main.
-  ******************************************************************************
-  */
-
-  .syntax unified
-  .cpu cortex-m4
-  .fpu softvfp
-  .thumb
-
-.global  g_pfnVectors
-.global  Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word  _sidata
-/* start address for the .data section. defined in linker script */
-.word  _sdata
-/* end address for the .data section. defined in linker script */
-.word  _edata
-/* start address for the .bss section. defined in linker script */
-.word  _sbss
-/* end address for the .bss section. defined in linker script */
-.word  _ebss
-/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
-
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval None
-*/
-
-    .section  .text.Reset_Handler
-  .weak  Reset_Handler
-  .type  Reset_Handler, %function
-Reset_Handler:
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs  r1, #0
-  b  LoopCopyDataInit
-
-CopyDataInit:
-  ldr  r3, =_sidata
-  ldr  r3, [r3, r1]
-  str  r3, [r0, r1]
-  adds  r1, r1, #4
-
-LoopCopyDataInit:
-  ldr  r0, =_sdata
-  ldr  r3, =_edata
-  adds  r2, r0, r1
-  cmp  r2, r3
-  bcc  CopyDataInit
-  ldr  r2, =_sbss
-  b  LoopFillZerobss
-/* Zero fill the bss segment. */
-FillZerobss:
-  movs  r3, #0
-  str  r3, [r2], #4
-
-LoopFillZerobss:
-  ldr  r3, = _ebss
-  cmp  r2, r3
-  bcc  FillZerobss
-
-/* Call the clock system initialization function.*/
-  bl  SystemInit
-/* Call static constructors */
-  bl __libc_init_array
-/* Call the application's entry point.*/
-  bl  main
-  bx  lr
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- * @param  None
- * @retval None
-*/
-    .section  .text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-  b  Infinite_Loop
-  .size  Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex M3. Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-*******************************************************************************/
-   .section  .isr_vector,"a",%progbits
-  .type  g_pfnVectors, %object
-  .size  g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-  .word  _estack
-  .word  Reset_Handler
-  .word  NMI_Handler
-  .word  HardFault_Handler
-  .word  MemManage_Handler
-  .word  BusFault_Handler
-  .word  UsageFault_Handler
-  .word  0
-  .word  0
-  .word  0
-  .word  0
-  .word  SVC_Handler
-  .word  DebugMon_Handler
-  .word  0
-  .word  PendSV_Handler
-  .word  SysTick_Handler
-
-  /* External Interrupts */
-  .word  WWDT_IRQHandler                     /* Window Watchdog Timer                   */
-  .word  PVM_IRQHandler                      /* PVM through EXINT Line detect           */
-  .word  ERTC_IRQHandler                     /* ERTC                                    */
-  .word  FLASH_IRQHandler                    /* Flash                                   */
-  .word  CRM_IRQHandler                      /* CRM                                     */
-  .word  EXINT1_0_IRQHandler                 /* EXINT Line 1 & 0                        */
-  .word  EXINT3_2_IRQHandler                 /* EXINT Line 3 & 2                        */
-  .word  EXINT15_4_IRQHandler                /* EXINT Line 15 ~ 4                       */
-  .word  ACC_IRQHandler                      /* ACC                                     */
-  .word  DMA1_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA1_Channel3_2_IRQHandler          /* DMA1 Channel 3 & 2                      */
-  .word  DMA1_Channel7_4_IRQHandler          /* DMA1 Channel 7 & 4                      */
-  .word  ADC1_IRQHandler                     /* ADC1                                    */
-  .word  TMR1_BRK_OVF_TRG_HALL_IRQHandler    /* TMR1 brake overflow trigger and hall    */
-  .word  TMR1_CH_IRQHandler                  /* TMR1 channel                            */
-  .word  TMR2_GLOBAL_IRQHandler              /* TMR2                                    */
-  .word  TMR3_GLOBAL_IRQHandler              /* TMR3                                    */
-  .word  TMR6_GLOBAL_IRQHandler              /* TMR6                                    */
-  .word  TMR7_GLOBAL_IRQHandler              /* TMR7                                    */
-  .word  TMR14_GLOBAL_IRQHandler             /* TMR14                                   */
-  .word  TMR15_GLOBAL_IRQHandler             /* TMR15                                   */
-  .word  TMR16_GLOBAL_IRQHandler             /* TMR16                                   */
-  .word  TMR17_GLOBAL_IRQHandler             /* TMR17                                   */
-  .word  I2C1_EVT_IRQHandler                 /* I2C1 Event                              */
-  .word  I2C2_EVT_IRQHandler                 /* I2C2 Event                              */
-  .word  SPI1_IRQHandler                     /* SPI1                                    */
-  .word  SPI2_IRQHandler                     /* SPI2                                    */
-  .word  USART1_IRQHandler                   /* USART1                                  */
-  .word  USART2_IRQHandler                   /* USART2                                  */
-  .word  USART4_3_IRQHandler                 /* USART3 & USART4                         */
-  .word  CAN1_IRQHandler                     /* CAN1                                    */
-  .word  OTGFS1_IRQHandler                   /* OTGFS1                                  */
-  .word  I2C1_ERR_IRQHandler                 /* I2C1 Error                              */
-  .word  SPI3_IRQHandler                     /* SPI3                                    */
-  .word  I2C2_ERR_IRQHandler                 /* I2C2 Error                              */
-  .word  TMR13_GLOBAL_IRQHandler             /* TMR13                                   */
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-   .weak      NMI_Handler
-   .thumb_set NMI_Handler,Default_Handler
-
-   .weak      HardFault_Handler
-   .thumb_set HardFault_Handler,Default_Handler
-
-   .weak      MemManage_Handler
-   .thumb_set MemManage_Handler,Default_Handler
-
-   .weak      BusFault_Handler
-   .thumb_set BusFault_Handler,Default_Handler
-
-   .weak      UsageFault_Handler
-   .thumb_set UsageFault_Handler,Default_Handler
-
-   .weak      SVC_Handler
-   .thumb_set SVC_Handler,Default_Handler
-
-   .weak      DebugMon_Handler
-   .thumb_set DebugMon_Handler,Default_Handler
-
-   .weak      PendSV_Handler
-   .thumb_set PendSV_Handler,Default_Handler
-
-   .weak      SysTick_Handler
-   .thumb_set SysTick_Handler,Default_Handler
-
-   .weak      WWDT_IRQHandler
-   .thumb_set WWDT_IRQHandler,Default_Handler
-
-   .weak      PVM_IRQHandler
-   .thumb_set PVM_IRQHandler,Default_Handler
-
-   .weak      ERTC_IRQHandler
-   .thumb_set ERTC_IRQHandler,Default_Handler
-
-   .weak      FLASH_IRQHandler
-   .thumb_set FLASH_IRQHandler,Default_Handler
-
-   .weak      CRM_IRQHandler
-   .thumb_set CRM_IRQHandler,Default_Handler
-
-   .weak      EXINT1_0_IRQHandler
-   .thumb_set EXINT1_0_IRQHandler,Default_Handler
-
-   .weak      EXINT3_2_IRQHandler
-   .thumb_set EXINT3_2_IRQHandler,Default_Handler
-
-   .weak      EXINT15_4_IRQHandler
-   .thumb_set EXINT15_4_IRQHandler,Default_Handler
-
-   .weak      ACC_IRQHandler
-   .thumb_set ACC_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel1_IRQHandler
-   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel3_2_IRQHandler
-   .thumb_set DMA1_Channel3_2_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel7_4_IRQHandler
-   .thumb_set DMA1_Channel7_4_IRQHandler,Default_Handler
-
-   .weak      ADC1_IRQHandler
-   .thumb_set ADC1_IRQHandler,Default_Handler
-
-   .weak      TMR1_BRK_OVF_TRG_HALL_IRQHandler
-   .thumb_set TMR1_BRK_OVF_TRG_HALL_IRQHandler,Default_Handler
-
-   .weak      TMR1_CH_IRQHandler
-   .thumb_set TMR1_CH_IRQHandler,Default_Handler
-
-   .weak      TMR2_GLOBAL_IRQHandler
-   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR3_GLOBAL_IRQHandler
-   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR6_GLOBAL_IRQHandler
-   .thumb_set TMR6_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR7_GLOBAL_IRQHandler
-   .thumb_set TMR7_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR14_GLOBAL_IRQHandler
-   .thumb_set TMR14_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR15_GLOBAL_IRQHandler
-   .thumb_set TMR15_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR16_GLOBAL_IRQHandler
-   .thumb_set TMR16_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR17_GLOBAL_IRQHandler
-   .thumb_set TMR17_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      I2C1_EVT_IRQHandler
-   .thumb_set I2C1_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C2_EVT_IRQHandler
-   .thumb_set I2C2_EVT_IRQHandler,Default_Handler
-
-   .weak      SPI1_IRQHandler
-   .thumb_set SPI1_IRQHandler,Default_Handler
-
-   .weak      SPI2_IRQHandler
-   .thumb_set SPI2_IRQHandler,Default_Handler
-
-   .weak      USART1_IRQHandler
-   .thumb_set USART1_IRQHandler,Default_Handler
-
-   .weak      USART2_IRQHandler
-   .thumb_set USART2_IRQHandler,Default_Handler
-
-   .weak      USART4_3_IRQHandler
-   .thumb_set USART4_3_IRQHandler,Default_Handler
-
-   .weak      CAN1_IRQHandler
-   .thumb_set CAN1_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_IRQHandler
-   .thumb_set OTGFS1_IRQHandler,Default_Handler
-
-   .weak      I2C1_ERR_IRQHandler
-   .thumb_set I2C1_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI3_IRQHandler
-   .thumb_set SPI3_IRQHandler,Default_Handler
-
-   .weak      I2C2_ERR_IRQHandler
-   .thumb_set I2C2_ERR_IRQHandler,Default_Handler
-
-   .weak      TMR13_GLOBAL_IRQHandler
-   .thumb_set TMR13_GLOBAL_IRQHandler,Default_Handler
diff --git a/hw/bsp/at32f435_437/boards/AT_START_F435_437/AT32F437xM_FLASH.ld b/hw/bsp/at32f435_437/boards/AT_START_F435_437/AT32F437xM_FLASH.ld
deleted file mode 100644
index b9d5ba223..000000000
--- a/hw/bsp/at32f435_437/boards/AT_START_F435_437/AT32F437xM_FLASH.ld
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : AT32F437xM_FLASH.ld
-**
-**  Abstract    : Linker script for AT32F437xM Device with
-**                4096KByte FLASH, 384KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**  Target      : Artery Tek AT32
-**
-**  Environment : Arm gcc toolchain
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20060000;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 4032K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 384K
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data :
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss section */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(8);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(8);
-  } >RAM
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}
diff --git a/hw/bsp/at32f435_437/boards/AT_START_F435_437/board.cmake b/hw/bsp/at32f435_437/boards/AT_START_F435_437/board.cmake
new file mode 100644
index 000000000..fc54dbcab
--- /dev/null
+++ b/hw/bsp/at32f435_437/boards/AT_START_F435_437/board.cmake
@@ -0,0 +1,8 @@
+set(MCU_VARIANT AT32F437ZMT7)
+set(MCU_LINKER_NAME AT32F437xM)
+
+set(JLINK_DEVICE ${MCU_VARIANT})
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC ${MCU_VARIANT})
+endfunction()
diff --git a/hw/bsp/at32f435_437/boards/AT_START_F435_437/board.mk b/hw/bsp/at32f435_437/boards/AT_START_F435_437/board.mk
index 823ae677d..e663d59f0 100644
--- a/hw/bsp/at32f435_437/boards/AT_START_F435_437/board.mk
+++ b/hw/bsp/at32f435_437/boards/AT_START_F435_437/board.mk
@@ -1,4 +1,7 @@
-LD_FILE = $(BOARD_PATH)/AT32F437xM_FLASH.ld
+MCU_VARIANT = AT32F437ZMT7
+MCU_LINKER_NAME = AT32F437xM
+
+JLINK_DEVICE = ${MCU_VARIANT}
 
 CFLAGS += \
-  -DAT32F437ZMT7
+  -D${MCU_VARIANT}
diff --git a/hw/bsp/at32f435_437/family.c b/hw/bsp/at32f435_437/family.c
index af1fb30e0..c93beeb5a 100644
--- a/hw/bsp/at32f435_437/family.c
+++ b/hw/bsp/at32f435_437/family.c
@@ -25,8 +25,8 @@
  */
 
 #include "at32f435_437_clock.h"
-#include "bsp/board_api.h"
 #include "board.h"
+#include "bsp/board_api.h"
 
 void usb_gpio_config(void);
 void uart_print_init(uint32_t baudrate);
@@ -36,25 +36,20 @@ int inHandlerMode(void);
 //--------------------------------------------------------------------+
 // Forward USB interrupt events to TinyUSB IRQ Handler
 //--------------------------------------------------------------------+
-void OTGFS1_IRQHandler(void)
-{
+void OTGFS1_IRQHandler(void) {
   tusb_int_handler(0, true);
 }
-void OTGFS2_IRQHandler(void)
-{
+void OTGFS2_IRQHandler(void) {
   tusb_int_handler(1, true);
 }
-void OTGFS1_WKUP_IRQHandler(void)
-{
+void OTGFS1_WKUP_IRQHandler(void) {
   tusb_int_handler(0, true);
 }
-void OTGFS2_WKUP_IRQHandler(void)
-{
+void OTGFS2_WKUP_IRQHandler(void) {
   tusb_int_handler(1, true);
 }
 
-void board_init(void)
-{
+void board_init(void) {
   /* config nvic priority group */
   nvic_priority_group_config(NVIC_PRIORITY_GROUP_4);
 
@@ -97,10 +92,8 @@ void board_init(void)
   * @param  clk_s:USB_CLK_HICK, USB_CLK_HEXT
   * @retval none
   */
-void usb_clock48m_select(usb_clk48_s clk_s)
-{
-  if(clk_s == USB_CLK_HICK)
-  {
+void usb_clock48m_select(usb_clk48_s clk_s) {
+  if (clk_s == USB_CLK_HICK) {
     crm_usb_clock_source_select(CRM_USB_CLOCK_SOURCE_HICK);
 
     /* enable the acc calibration ready interrupt */
@@ -110,20 +103,17 @@ void usb_clock48m_select(usb_clk48_s clk_s)
     acc_write_c1(7980);
     acc_write_c2(8000);
     acc_write_c3(8020);
-    #ifdef BOARD_TUD_RHPORT
-      #if BOARD_TUD_RHPORT == 0
-        acc_sof_select(ACC_SOF_OTG1);
-      #else
-        acc_sof_select(ACC_SOF_OTG2);
-      #endif
-    #endif
+#ifdef BOARD_TUD_RHPORT
+  #if BOARD_TUD_RHPORT == 0
+    acc_sof_select(ACC_SOF_OTG1);
+  #else
+    acc_sof_select(ACC_SOF_OTG2);
+  #endif
+#endif
     /* open acc calibration */
     acc_calibration_mode_enable(ACC_CAL_HICKTRIM, TRUE);
-  }
-  else
-  {
-    switch(system_core_clock)
-    {
+  } else {
+    switch (system_core_clock) {
       /* 48MHz */
       case 48000000:
         crm_usb_clock_div_set(CRM_USB_DIV_1);
@@ -185,8 +175,7 @@ void usb_clock48m_select(usb_clk48_s clk_s)
   }
 }
 
-void led_and_botton_init(void)
-{
+void led_and_botton_init(void) {
   /* LED */
   gpio_init_type gpio_led_init_struct;
   /* enable the led clock */
@@ -195,7 +184,7 @@ void led_and_botton_init(void)
   gpio_default_para_init(&gpio_led_init_struct);
   /* configure the led gpio */
   gpio_led_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_led_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_led_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_led_init_struct.gpio_mode = GPIO_MODE_OUTPUT;
   gpio_led_init_struct.gpio_pins = LED_PIN;
   gpio_led_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -223,8 +212,7 @@ void led_and_botton_init(void)
   * @param  baudrate: uart baudrate
   * @retval none
   */
-void uart_print_init(uint32_t baudrate)
-{
+void uart_print_init(uint32_t baudrate) {
   gpio_init_type gpio_init_struct;
   /* enable the uart and gpio clock */
   crm_periph_clock_enable(PRINT_UART_CRM_CLK, TRUE);
@@ -232,7 +220,7 @@ void uart_print_init(uint32_t baudrate)
   gpio_default_para_init(&gpio_init_struct);
   /* configure the uart tx pin */
   gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
   gpio_init_struct.gpio_pins = PRINT_UART_TX_PIN;
   gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
@@ -245,51 +233,44 @@ void uart_print_init(uint32_t baudrate)
 }
 
 // Get characters from UART. Return number of read bytes
-int board_uart_read(uint8_t *buf, int len)
-{
+int board_uart_read(uint8_t *buf, int len) {
   (void) buf;
   (void) len;
   return 0;
 }
 // Send characters to UART. Return number of sent bytes
-int board_uart_write(void const *buf, int len)
-{
-  #if CFG_TUSB_OS == OPT_OS_NONE
-    int txsize = len;
-    u16 timeout = 0xffff;
-    while (txsize--)
-    {
-      while(usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET)
-      {
-        timeout--;
-        if(timeout == 0)
-        {
-          return 0;
-        }
+int board_uart_write(void const *buf, int len) {
+#if CFG_TUSB_OS == OPT_OS_NONE
+  int txsize = len;
+  u16 timeout = 0xffff;
+  while (txsize--) {
+    while (usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET) {
+      timeout--;
+      if (timeout == 0) {
+        return 0;
       }
-      PRINT_UART->dt = (*((uint8_t const *)buf) & 0x01FF);
-      buf++;
     }
-    return len;
-  #else
-    (void) buf;
-    (void) len;
-    return 0;
-  #endif
+    PRINT_UART->dt = (*((uint8_t const *) buf) & 0x01FF);
+    buf++;
+  }
+  return len;
+#else
+  (void) buf;
+  (void) len;
+  return 0;
+#endif
 }
 
-int inHandlerMode(void)
-{
-   return __get_IPSR();
+int inHandlerMode(void) {
+  return __get_IPSR();
 }
 
-void usb_gpio_config(void)
-{
+void usb_gpio_config(void) {
   gpio_init_type gpio_init_struct;
   crm_periph_clock_enable(OTG_PIN_GPIO_CLOCK, TRUE);
   gpio_default_para_init(&gpio_init_struct);
   gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
-  gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;
+  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
   gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
   gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
   /* dp and dm */
@@ -297,36 +278,33 @@ void usb_gpio_config(void)
   gpio_init(OTG_PIN_GPIO, &gpio_init_struct);
   gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_DP_SOURCE, OTG_PIN_MUX);
   gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_DM_SOURCE, OTG_PIN_MUX);
-  #ifdef USB_SOF_OUTPUT_ENABLE
-    crm_periph_clock_enable(OTG_PIN_SOF_GPIO_CLOCK, TRUE);
-    gpio_init_struct.gpio_pins = OTG_PIN_SOF;
-    gpio_init(OTG_PIN_SOF_GPIO, &gpio_init_struct);
-    gpio_pin_mux_config(OTG_PIN_SOF_GPIO, OTG_PIN_SOF_SOURCE, OTG_PIN_MUX);
-  #endif
-    /* otgfs use vbus pin */
-  #ifndef USB_VBUS_IGNORE
-    gpio_init_struct.gpio_pins = OTG_PIN_VBUS;
-    gpio_init_struct.gpio_pull = GPIO_PULL_DOWN;
-    gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_VBUS_SOURCE, OTG_PIN_MUX);
-    gpio_init(OTG_PIN_GPIO, &gpio_init_struct);
-  #endif
+#ifdef USB_SOF_OUTPUT_ENABLE
+  crm_periph_clock_enable(OTG_PIN_SOF_GPIO_CLOCK, TRUE);
+  gpio_init_struct.gpio_pins = OTG_PIN_SOF;
+  gpio_init(OTG_PIN_SOF_GPIO, &gpio_init_struct);
+  gpio_pin_mux_config(OTG_PIN_SOF_GPIO, OTG_PIN_SOF_SOURCE, OTG_PIN_MUX);
+#endif
+  /* otgfs use vbus pin */
+#ifndef USB_VBUS_IGNORE
+  gpio_init_struct.gpio_pins = OTG_PIN_VBUS;
+  gpio_init_struct.gpio_pull = GPIO_PULL_DOWN;
+  gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_VBUS_SOURCE, OTG_PIN_MUX);
+  gpio_init(OTG_PIN_GPIO, &gpio_init_struct);
+#endif
 }
 
-void board_led_write(bool state)
-{
+void board_led_write(bool state) {
   gpio_bits_write(LED_PORT, LED_PIN, state ^ (!LED_STATE_ON));
 }
 
-uint32_t board_button_read(void)
-{
+uint32_t board_button_read(void) {
   return gpio_input_data_bit_read(BUTTON_PORT, BUTTON_PIN);
 }
 
-size_t board_get_unique_id(uint8_t id[], size_t max_len)
-{
+size_t board_get_unique_id(uint8_t id[], size_t max_len) {
   (void) max_len;
-  volatile uint32_t * at32_uuid = ((volatile uint32_t*)0x1FFFF7E8);
-  uint32_t* id32 = (uint32_t*) (uintptr_t) id;
+  volatile uint32_t *at32_uuid = ((volatile uint32_t *) 0x1FFFF7E8);
+  uint32_t *id32 = (uint32_t *) (uintptr_t) id;
   uint8_t const len = 12;
 
   id32[0] = at32_uuid[0];
@@ -337,21 +315,17 @@ size_t board_get_unique_id(uint8_t id[], size_t max_len)
 }
 
 #if CFG_TUSB_OS == OPT_OS_NONE
-  volatile uint32_t system_ticks = 0;
-  void SysTick_Handler(void)
-  {
-    system_ticks++;
-  }
-  uint32_t board_millis(void)
-  {
-    return system_ticks;
-  }
-  void SVC_Handler(void)
-  {
-  }
-  void PendSV_Handler(void)
-  {
-  }
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler(void) {
+  system_ticks++;
+}
+uint32_t board_millis(void) {
+  return system_ticks;
+}
+void SVC_Handler(void) {
+}
+void PendSV_Handler(void) {
+}
 #endif
 
 void HardFault_Handler(void) {
@@ -363,9 +337,8 @@ void HardFault_Handler(void) {
 void _init(void) {
 }
 
-#ifdef  USE_FULL_ASSERT
-void assert_failed(const char *file, uint32_t line)
-{
+#ifdef USE_FULL_ASSERT
+void assert_failed(const char *file, uint32_t line) {
   /* USER CODE BEGIN 6 */
   /* User can add his own implementation to report the file name and line number,
      tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
diff --git a/hw/bsp/at32f435_437/family.cmake b/hw/bsp/at32f435_437/family.cmake
new file mode 100644
index 000000000..c85b58ae4
--- /dev/null
+++ b/hw/bsp/at32f435_437/family.cmake
@@ -0,0 +1,114 @@
+include_guard()
+
+set(AT32_FAMILY at32f435_437)
+set(AT32_SDK_LIB ${TOP}/hw/mcu/artery/${AT32_FAMILY}/libraries)
+
+string(TOUPPER ${AT32_FAMILY} AT32_FAMILY_UPPER)
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+# toolchain set up
+set(CMAKE_SYSTEM_CPU cortex-m4 CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+
+set(FAMILY_MCUS ${AT32_FAMILY_UPPER} CACHE INTERNAL "")
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+function(add_board_target BOARD_TARGET)
+  if (TARGET ${BOARD_TARGET})
+    return()
+  endif ()
+
+  # Startup & Linker script
+  set(STARTUP_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s)
+  set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
+  set(STARTUP_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s)
+
+  if (NOT DEFINED LD_FILE_GNU)
+    set(LD_FILE_GNU ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld)
+  endif ()
+  set(LD_FILE_Clang ${LD_FILE_GNU})
+  set(LD_FILE_IAR ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf)
+
+  add_library(${BOARD_TARGET} STATIC
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_gpio.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_misc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_usart.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_acc.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_crm.c
+    ${AT32_SDK_LIB}/drivers/src/${AT32_FAMILY}_exint.c
+    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${AT32_SDK_LIB}/cmsis/cm4/core_support
+    ${AT32_SDK_LIB}/cmsis/cm4/device_support
+    ${AT32_SDK_LIB}/drivers/inc
+    )
+  target_compile_definitions(${BOARD_TARGET} PUBLIC
+    BOARD_TUD_RHPORT=0
+    )
+
+  update_board(${BOARD_TARGET})
+
+  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -nostartfiles
+      --specs=nosys.specs --specs=nano.specs
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_Clang}"
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_IAR}"
+      )
+  endif ()
+endfunction()
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+function(family_configure_example TARGET RTOS)
+  family_configure_common(${TARGET} ${RTOS})
+
+  # Board target
+  add_board_target(board_${BOARD})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_clock.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/${AT32_FAMILY}_int.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  # Add TinyUSB target and port source
+  family_add_tinyusb(${TARGET} OPT_MCU_${AT32_FAMILY_UPPER})
+  target_sources(${TARGET} PUBLIC
+    ${TOP}/src/portable/synopsys/dwc2/dcd_dwc2.c
+    ${TOP}/src/portable/synopsys/dwc2/hcd_dwc2.c
+    ${TOP}/src/portable/synopsys/dwc2/dwc2_common.c
+    )
+  target_link_libraries(${TARGET} PUBLIC board_${BOARD})
+
+  # Flashing
+  family_add_bin_hex(${TARGET})
+  family_flash_jlink(${TARGET})
+endfunction()
diff --git a/hw/bsp/at32f435_437/family.mk b/hw/bsp/at32f435_437/family.mk
index 891c7501c..b33be1180 100644
--- a/hw/bsp/at32f435_437/family.mk
+++ b/hw/bsp/at32f435_437/family.mk
@@ -1,8 +1,5 @@
-# Submodules
-AT32F435_437_SDK = hw/mcu/artery/at32f435_437
-
-# AT32 SDK path
-AT32F435_437_SDK_SRC = $(AT32F435_437_SDK)/libraries
+AT32_FAMILY = at32f435_437
+AT32_SDK_LIB = hw/mcu/artery/${AT32_FAMILY}/libraries
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
@@ -13,6 +10,7 @@ CFLAGS_GCC += \
 
 CFLAGS += \
 	-DCFG_TUSB_MCU=OPT_MCU_AT32F435_437 \
+	-DBOARD_TUD_RHPORT=0
 
 LDFLAGS_GCC += \
 	-flto --specs=nosys.specs -nostdlib -nostartfiles
@@ -21,24 +19,24 @@ SRC_C += \
 	src/portable/synopsys/dwc2/dcd_dwc2.c \
 	src/portable/synopsys/dwc2/hcd_dwc2.c \
 	src/portable/synopsys/dwc2/dwc2_common.c \
-	$(AT32F435_437_SDK_SRC)/drivers/src/at32f435_437_gpio.c \
-	$(AT32F435_437_SDK_SRC)/drivers/src/at32f435_437_misc.c \
-	$(AT32F435_437_SDK_SRC)/drivers/src/at32f435_437_usart.c \
-	$(AT32F435_437_SDK_SRC)/drivers/src/at32f435_437_crm.c \
-	$(AT32F435_437_SDK_SRC)/drivers/src/at32f435_437_acc.c \
-	$(AT32F435_437_SDK_SRC)/drivers/src/at32f435_437_exint.c \
-	$(AT32F435_437_SDK_SRC)/cmsis/cm4/device_support/system_at32f435_437.c
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_gpio.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_misc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_usart.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_crm.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_acc.c \
+	$(AT32_SDK_LIB)/drivers/src/${AT32_FAMILY}_exint.c \
+	$(AT32_SDK_LIB)/cmsis/cm4/device_support/system_${AT32_FAMILY}.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(AT32F435_437_SDK_SRC)/drivers/inc \
-	$(TOP)/$(AT32F435_437_SDK_SRC)/cmsis/cm4/core_support \
-	$(TOP)/$(AT32F435_437_SDK_SRC)/cmsis/cm4/device_support \
+	$(TOP)/$(AT32_SDK_LIB)/drivers/inc \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/core_support \
+	$(TOP)/$(AT32_SDK_LIB)/cmsis/cm4/device_support
 
-SRC_S += \
-	$(FAMILY_PATH)/startup_at32f435_437.s
+SRC_S_GCC += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/startup_${AT32_FAMILY}.s
+SRC_S_IAR += ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/startup_${AT32_FAMILY}.s
 
-# For freeRTOS port source
-#FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4F
+LD_FILE_GCC ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/gcc/linker/${MCU_LINKER_NAME}_FLASH.ld
+LD_FILE_IAR ?= ${AT32_SDK_LIB}/cmsis/cm4/device_support/startup/iar/linker/${MCU_LINKER_NAME}.icf
 
 flash: flash-atlink
diff --git a/hw/bsp/at32f435_437/startup_at32f435_437.s b/hw/bsp/at32f435_437/startup_at32f435_437.s
deleted file mode 100644
index 70bc4ec89..000000000
--- a/hw/bsp/at32f435_437/startup_at32f435_437.s
+++ /dev/null
@@ -1,569 +0,0 @@
-/**
-  ******************************************************************************
-  * @file     startup_at32f435_437.s
-  * @brief    at32f435_437 devices vector table for gcc toolchain.
-  *           this module performs:
-  *           - set the initial sp
-  *           - set the initial pc == reset_handler,
-  *           - set the vector table entries with the exceptions isr address
-  *           - configure the clock system and the external sram to
-  *             be used as data memory (optional, to be enabled by user)
-  *           - branches to main in the c library (which eventually
-  *             calls main()).
-  *           after reset the cortex-m4 processor is in thread mode,
-  *           priority is privileged, and the stack is set to main.
-  ******************************************************************************
-  */
-
-  .syntax unified
-  .cpu cortex-m4
-  .fpu softvfp
-  .thumb
-
-.global  g_pfnVectors
-.global  Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word  _sidata
-/* start address for the .data section. defined in linker script */
-.word  _sdata
-/* end address for the .data section. defined in linker script */
-.word  _edata
-/* start address for the .bss section. defined in linker script */
-.word  _sbss
-/* end address for the .bss section. defined in linker script */
-.word  _ebss
-/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
-
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval None
-*/
-
-    .section  .text.Reset_Handler
-  .weak  Reset_Handler
-  .type  Reset_Handler, %function
-Reset_Handler:
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs  r1, #0
-  b  LoopCopyDataInit
-
-CopyDataInit:
-  ldr  r3, =_sidata
-  ldr  r3, [r3, r1]
-  str  r3, [r0, r1]
-  adds  r1, r1, #4
-
-LoopCopyDataInit:
-  ldr  r0, =_sdata
-  ldr  r3, =_edata
-  adds  r2, r0, r1
-  cmp  r2, r3
-  bcc  CopyDataInit
-  ldr  r2, =_sbss
-  b  LoopFillZerobss
-/* Zero fill the bss segment. */
-FillZerobss:
-  movs  r3, #0
-  str  r3, [r2], #4
-
-LoopFillZerobss:
-  ldr  r3, = _ebss
-  cmp  r2, r3
-  bcc  FillZerobss
-
-/* Call the clock system initialization function.*/
-  bl  SystemInit
-/* Call static constructors */
-  bl __libc_init_array
-/* Call the application's entry point.*/
-  bl  main
-  bx  lr
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- * @param  None
- * @retval None
-*/
-    .section  .text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-  b  Infinite_Loop
-  .size  Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex M3. Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-*******************************************************************************/
-   .section  .isr_vector,"a",%progbits
-  .type  g_pfnVectors, %object
-  .size  g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-  .word  _estack
-  .word  Reset_Handler
-  .word  NMI_Handler
-  .word  HardFault_Handler
-  .word  MemManage_Handler
-  .word  BusFault_Handler
-  .word  UsageFault_Handler
-  .word  0
-  .word  0
-  .word  0
-  .word  0
-  .word  SVC_Handler
-  .word  DebugMon_Handler
-  .word  0
-  .word  PendSV_Handler
-  .word  SysTick_Handler
-
-  /* External Interrupts */
-  .word  WWDT_IRQHandler                     /* Window Watchdog Timer                   */
-  .word  PVM_IRQHandler                      /* PVM through EXINT Line detect           */
-  .word  TAMP_STAMP_IRQHandler               /* Tamper and TimeStamps through the EXINT line */
-  .word  ERTC_WKUP_IRQHandler                /* ERTC Wakeup through the EXINT line      */
-  .word  FLASH_IRQHandler                    /* Flash                                   */
-  .word  CRM_IRQHandler                      /* CRM                                     */
-  .word  EXINT0_IRQHandler                   /* EXINT Line 0                            */
-  .word  EXINT1_IRQHandler                   /* EXINT Line 1                            */
-  .word  EXINT2_IRQHandler                   /* EXINT Line 2                            */
-  .word  EXINT3_IRQHandler                   /* EXINT Line 3                            */
-  .word  EXINT4_IRQHandler                   /* EXINT Line 4                            */
-  .word  EDMA_Stream1_IRQHandler             /* EDMA Stream 1                           */
-  .word  EDMA_Stream2_IRQHandler             /* EDMA Stream 2                           */
-  .word  EDMA_Stream3_IRQHandler             /* EDMA Stream 3                           */
-  .word  EDMA_Stream4_IRQHandler             /* EDMA Stream 4                           */
-  .word  EDMA_Stream5_IRQHandler             /* EDMA Stream 5                           */
-  .word  EDMA_Stream6_IRQHandler             /* EDMA Stream 6                           */
-  .word  EDMA_Stream7_IRQHandler             /* EDMA Stream 7                           */
-  .word  ADC1_2_3_IRQHandler                 /* ADC1 & ADC2 & ADC3                      */
-  .word  CAN1_TX_IRQHandler                  /* CAN1 TX                                 */
-  .word  CAN1_RX0_IRQHandler                 /* CAN1 RX0                                */
-  .word  CAN1_RX1_IRQHandler                 /* CAN1 RX1                                */
-  .word  CAN1_SE_IRQHandler                  /* CAN1 SE                                 */
-  .word  EXINT9_5_IRQHandler                 /* EXINT Line [9:5]                        */
-  .word  TMR1_BRK_TMR9_IRQHandler            /* TMR1 Brake and TMR9                     */
-  .word  TMR1_OVF_TMR10_IRQHandler           /* TMR1 Overflow and TMR10                 */
-  .word  TMR1_TRG_HALL_TMR11_IRQHandler      /* TMR1 Trigger and hall and TMR11         */
-  .word  TMR1_CH_IRQHandler                  /* TMR1 Channel                            */
-  .word  TMR2_GLOBAL_IRQHandler              /* TMR2                                    */
-  .word  TMR3_GLOBAL_IRQHandler              /* TMR3                                    */
-  .word  TMR4_GLOBAL_IRQHandler              /* TMR4                                    */
-  .word  I2C1_EVT_IRQHandler                 /* I2C1 Event                              */
-  .word  I2C1_ERR_IRQHandler                 /* I2C1 Error                              */
-  .word  I2C2_EVT_IRQHandler                 /* I2C2 Event                              */
-  .word  I2C2_ERR_IRQHandler                 /* I2C2 Error                              */
-  .word  SPI1_IRQHandler                     /* SPI1                                    */
-  .word  SPI2_I2S2EXT_IRQHandler             /* SPI2                                    */
-  .word  USART1_IRQHandler                   /* USART1                                  */
-  .word  USART2_IRQHandler                   /* USART2                                  */
-  .word  USART3_IRQHandler                   /* USART3                                  */
-  .word  EXINT15_10_IRQHandler               /* EXINT Line [15:10]                      */
-  .word  ERTCAlarm_IRQHandler                /* RTC Alarm through EXINT Line            */
-  .word  OTGFS1_WKUP_IRQHandler              /* OTGFS1 Wakeup from suspend              */
-  .word  TMR8_BRK_TMR12_IRQHandler           /* TMR8 Brake and TMR12                    */
-  .word  TMR8_OVF_TMR13_IRQHandler           /* TMR8 Overflow and TMR13                 */
-  .word  TMR8_TRG_HALL_TMR14_IRQHandler      /* TMR8 Trigger and hall and TMR14         */
-  .word  TMR8_CH_IRQHandler                  /* TMR8 Channel                            */
-  .word  EDMA_Stream8_IRQHandler             /* EDMA Stream 8                           */
-  .word  XMC_IRQHandler                      /* XMC                                     */
-  .word  SDIO1_IRQHandler                    /* SDIO1                                   */
-  .word  TMR5_GLOBAL_IRQHandler              /* TMR5                                    */
-  .word  SPI3_I2S3EXT_IRQHandler             /* SPI3                                    */
-  .word  UART4_IRQHandler                    /* UART4                                   */
-  .word  UART5_IRQHandler                    /* UART5                                   */
-  .word  TMR6_DAC_GLOBAL_IRQHandler          /* TMR6 & DAC                              */
-  .word  TMR7_GLOBAL_IRQHandler              /* TMR7                                    */
-  .word  DMA1_Channel1_IRQHandler            /* DMA1 Channel 1                          */
-  .word  DMA1_Channel2_IRQHandler            /* DMA1 Channel 2                          */
-  .word  DMA1_Channel3_IRQHandler            /* DMA1 Channel 3                          */
-  .word  DMA1_Channel4_IRQHandler            /* DMA1 Channel 4                          */
-  .word  DMA1_Channel5_IRQHandler            /* DMA1 Channel 5                          */
-  .word  EMAC_IRQHandler                     /* EMAC                                    */
-  .word  EMAC_WKUP_IRQHandler                /* EMAC Wakeup                             */
-  .word  CAN2_TX_IRQHandler                  /* CAN2 TX                                 */
-  .word  CAN2_RX0_IRQHandler                 /* CAN2 RX0                                */
-  .word  CAN2_RX1_IRQHandler                 /* CAN2 RX1                                */
-  .word  CAN2_SE_IRQHandler                  /* CAN2 SE                                 */
-  .word  OTGFS1_IRQHandler                   /* OTGFS1                                  */
-  .word  DMA1_Channel6_IRQHandler            /* DMA1 Channel 6                          */
-  .word  DMA1_Channel7_IRQHandler            /* DMA1 Channel 7                          */
-  .word  0                                   /* Reserved                                */
-  .word  USART6_IRQHandler                   /* USART6                                  */
-  .word  I2C3_EVT_IRQHandler                 /* I2C3 Event                              */
-  .word  I2C3_ERR_IRQHandler                 /* I2C3 Error                              */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  OTGFS2_WKUP_IRQHandler              /* OTGFS2 Wakeup from suspend              */
-  .word  OTGFS2_IRQHandler                   /* OTGFS2                                  */
-  .word  DVP_IRQHandler                      /* DVP                                     */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  FPU_IRQHandler                      /* FPU                                     */
-  .word  UART7_IRQHandler                    /* UART7                                   */
-  .word  UART8_IRQHandler                    /* UART8                                   */
-  .word  SPI4_IRQHandler                     /* SPI4                                    */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  QSPI2_IRQHandler                    /* QSPI2                                   */
-  .word  QSPI1_IRQHandler                    /* QSPI1                                   */
-  .word  0                                   /* Reserved                                */
-  .word  DMAMUX_IRQHandler                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  0                                   /* Reserved                                */
-  .word  SDIO2_IRQHandler                    /* SDIO2                                   */
-  .word  ACC_IRQHandler                      /* ACC                                     */
-  .word  TMR20_BRK_IRQHandler                /* TMR20 Brake                             */
-  .word  TMR20_OVF_IRQHandler                /* TMR20 Overflow                          */
-  .word  TMR20_TRG_HALL_IRQHandler           /* TMR20 Trigger and hall                  */
-  .word  TMR20_CH_IRQHandler                 /* TMR20 Channel                           */
-  .word  DMA2_Channel1_IRQHandler            /* DMA2 Channel 1                          */
-  .word  DMA2_Channel2_IRQHandler            /* DMA2 Channel 2                          */
-  .word  DMA2_Channel3_IRQHandler            /* DMA2 Channel 3                          */
-  .word  DMA2_Channel4_IRQHandler            /* DMA2 Channel 4                          */
-  .word  DMA2_Channel5_IRQHandler            /* DMA2 Channel 5                          */
-  .word  DMA2_Channel6_IRQHandler            /* DMA2 Channel 6                          */
-  .word  DMA2_Channel7_IRQHandler            /* DMA2 Channel 7                          */
-
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-   .weak      NMI_Handler
-   .thumb_set NMI_Handler,Default_Handler
-
-   .weak      HardFault_Handler
-   .thumb_set HardFault_Handler,Default_Handler
-
-   .weak      MemManage_Handler
-   .thumb_set MemManage_Handler,Default_Handler
-
-   .weak      BusFault_Handler
-   .thumb_set BusFault_Handler,Default_Handler
-
-   .weak      UsageFault_Handler
-   .thumb_set UsageFault_Handler,Default_Handler
-
-   .weak      SVC_Handler
-   .thumb_set SVC_Handler,Default_Handler
-
-   .weak      DebugMon_Handler
-   .thumb_set DebugMon_Handler,Default_Handler
-
-   .weak      PendSV_Handler
-   .thumb_set PendSV_Handler,Default_Handler
-
-   .weak      SysTick_Handler
-   .thumb_set SysTick_Handler,Default_Handler
-
-   .weak      WWDT_IRQHandler
-   .thumb_set WWDT_IRQHandler,Default_Handler
-
-   .weak      PVM_IRQHandler
-   .thumb_set PVM_IRQHandler,Default_Handler
-
-   .weak      TAMP_STAMP_IRQHandler
-   .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
-
-   .weak      ERTC_WKUP_IRQHandler
-   .thumb_set ERTC_WKUP_IRQHandler,Default_Handler
-
-   .weak      FLASH_IRQHandler
-   .thumb_set FLASH_IRQHandler,Default_Handler
-
-   .weak      CRM_IRQHandler
-   .thumb_set CRM_IRQHandler,Default_Handler
-
-   .weak      EXINT0_IRQHandler
-   .thumb_set EXINT0_IRQHandler,Default_Handler
-
-   .weak      EXINT1_IRQHandler
-   .thumb_set EXINT1_IRQHandler,Default_Handler
-
-   .weak      EXINT2_IRQHandler
-   .thumb_set EXINT2_IRQHandler,Default_Handler
-
-   .weak      EXINT3_IRQHandler
-   .thumb_set EXINT3_IRQHandler,Default_Handler
-
-   .weak      EXINT4_IRQHandler
-   .thumb_set EXINT4_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream1_IRQHandler
-   .thumb_set EDMA_Stream1_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream2_IRQHandler
-   .thumb_set EDMA_Stream2_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream3_IRQHandler
-   .thumb_set EDMA_Stream3_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream4_IRQHandler
-   .thumb_set EDMA_Stream4_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream5_IRQHandler
-   .thumb_set EDMA_Stream5_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream6_IRQHandler
-   .thumb_set EDMA_Stream6_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream7_IRQHandler
-   .thumb_set EDMA_Stream7_IRQHandler,Default_Handler
-
-   .weak      ADC1_2_3_IRQHandler
-   .thumb_set ADC1_2_3_IRQHandler,Default_Handler
-
-   .weak      CAN1_TX_IRQHandler
-   .thumb_set CAN1_TX_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX0_IRQHandler
-   .thumb_set CAN1_RX0_IRQHandler,Default_Handler
-
-   .weak      CAN1_RX1_IRQHandler
-   .thumb_set CAN1_RX1_IRQHandler,Default_Handler
-
-   .weak      CAN1_SE_IRQHandler
-   .thumb_set CAN1_SE_IRQHandler,Default_Handler
-
-   .weak      EXINT9_5_IRQHandler
-   .thumb_set EXINT9_5_IRQHandler,Default_Handler
-
-   .weak      TMR1_BRK_TMR9_IRQHandler
-   .thumb_set TMR1_BRK_TMR9_IRQHandler,Default_Handler
-
-   .weak      TMR1_OVF_TMR10_IRQHandler
-   .thumb_set TMR1_OVF_TMR10_IRQHandler,Default_Handler
-
-   .weak      TMR1_TRG_HALL_TMR11_IRQHandler
-   .thumb_set TMR1_TRG_HALL_TMR11_IRQHandler,Default_Handler
-
-   .weak      TMR1_CH_IRQHandler
-   .thumb_set TMR1_CH_IRQHandler,Default_Handler
-
-   .weak      TMR2_GLOBAL_IRQHandler
-   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR3_GLOBAL_IRQHandler
-   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR4_GLOBAL_IRQHandler
-   .thumb_set TMR4_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      I2C1_EVT_IRQHandler
-   .thumb_set I2C1_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C1_ERR_IRQHandler
-   .thumb_set I2C1_ERR_IRQHandler,Default_Handler
-
-   .weak      I2C2_EVT_IRQHandler
-   .thumb_set I2C2_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C2_ERR_IRQHandler
-   .thumb_set I2C2_ERR_IRQHandler,Default_Handler
-
-   .weak      SPI1_IRQHandler
-   .thumb_set SPI1_IRQHandler,Default_Handler
-
-   .weak      SPI2_I2S2EXT_IRQHandler
-   .thumb_set SPI2_I2S2EXT_IRQHandler,Default_Handler
-
-   .weak      USART1_IRQHandler
-   .thumb_set USART1_IRQHandler,Default_Handler
-
-   .weak      USART2_IRQHandler
-   .thumb_set USART2_IRQHandler,Default_Handler
-
-   .weak      USART3_IRQHandler
-   .thumb_set USART3_IRQHandler,Default_Handler
-
-   .weak      EXINT15_10_IRQHandler
-   .thumb_set EXINT15_10_IRQHandler,Default_Handler
-
-   .weak      ERTCAlarm_IRQHandler
-   .thumb_set ERTCAlarm_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_WKUP_IRQHandler
-   .thumb_set OTGFS1_WKUP_IRQHandler,Default_Handler
-
-   .weak      TMR8_BRK_TMR12_IRQHandler
-   .thumb_set TMR8_BRK_TMR12_IRQHandler,Default_Handler
-
-   .weak      TMR8_OVF_TMR13_IRQHandler
-   .thumb_set TMR8_OVF_TMR13_IRQHandler,Default_Handler
-
-   .weak      TMR8_TRG_HALL_TMR14_IRQHandler
-   .thumb_set TMR8_TRG_HALL_TMR14_IRQHandler,Default_Handler
-
-   .weak      TMR8_CH_IRQHandler
-   .thumb_set TMR8_CH_IRQHandler,Default_Handler
-
-   .weak      EDMA_Stream8_IRQHandler
-   .thumb_set EDMA_Stream8_IRQHandler,Default_Handler
-
-   .weak      XMC_IRQHandler
-   .thumb_set XMC_IRQHandler,Default_Handler
-
-   .weak      SDIO1_IRQHandler
-   .thumb_set SDIO1_IRQHandler,Default_Handler
-
-   .weak      TMR5_GLOBAL_IRQHandler
-   .thumb_set TMR5_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      SPI3_I2S3EXT_IRQHandler
-   .thumb_set SPI3_I2S3EXT_IRQHandler,Default_Handler
-
-   .weak      UART4_IRQHandler
-   .thumb_set UART4_IRQHandler,Default_Handler
-
-   .weak      UART5_IRQHandler
-   .thumb_set UART5_IRQHandler,Default_Handler
-
-   .weak      TMR6_DAC_GLOBAL_IRQHandler
-   .thumb_set TMR6_DAC_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      TMR7_GLOBAL_IRQHandler
-   .thumb_set TMR7_GLOBAL_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel1_IRQHandler
-   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel2_IRQHandler
-   .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel3_IRQHandler
-   .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel4_IRQHandler
-   .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel5_IRQHandler
-   .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
-
-   .weak      EMAC_IRQHandler
-   .thumb_set EMAC_IRQHandler,Default_Handler
-
-   .weak      EMAC_WKUP_IRQHandler
-   .thumb_set EMAC_WKUP_IRQHandler,Default_Handler
-
-   .weak      CAN2_TX_IRQHandler
-   .thumb_set CAN2_TX_IRQHandler,Default_Handler
-
-   .weak      CAN2_RX0_IRQHandler
-   .thumb_set CAN2_RX0_IRQHandler ,Default_Handler
-
-   .weak      CAN2_RX1_IRQHandler
-   .thumb_set CAN2_RX1_IRQHandler ,Default_Handler
-
-   .weak      CAN2_SE_IRQHandler
-   .thumb_set CAN2_SE_IRQHandler,Default_Handler
-
-   .weak      OTGFS1_IRQHandler
-   .thumb_set OTGFS1_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel6_IRQHandler
-   .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA1_Channel7_IRQHandler
-   .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
-
-   .weak      USART6_IRQHandler
-   .thumb_set USART6_IRQHandler,Default_Handler
-
-   .weak      I2C3_EVT_IRQHandler
-   .thumb_set I2C3_EVT_IRQHandler,Default_Handler
-
-   .weak      I2C3_ERR_IRQHandler
-   .thumb_set I2C3_ERR_IRQHandler,Default_Handler
-
-   .weak      OTGFS2_WKUP_IRQHandler
-   .thumb_set OTGFS2_WKUP_IRQHandler,Default_Handler
-
-   .weak      OTGFS2_IRQHandler
-   .thumb_set OTGFS2_IRQHandler,Default_Handler
-
-   .weak      DVP_IRQHandler
-   .thumb_set DVP_IRQHandler,Default_Handler
-
-   .weak      FPU_IRQHandler
-   .thumb_set FPU_IRQHandler,Default_Handler
-
-   .weak      UART7_IRQHandler
-   .thumb_set UART7_IRQHandler,Default_Handler
-
-   .weak      UART8_IRQHandler
-   .thumb_set UART8_IRQHandler,Default_Handler
-
-   .weak      SPI4_IRQHandler
-   .thumb_set SPI4_IRQHandler,Default_Handler
-
-   .weak      QSPI2_IRQHandler
-   .thumb_set QSPI2_IRQHandler,Default_Handler
-
-   .weak      QSPI1_IRQHandler
-   .thumb_set QSPI1_IRQHandler,Default_Handler
-
-   .weak      DMAMUX_IRQHandler
-   .thumb_set DMAMUX_IRQHandler ,Default_Handler
-
-   .weak      SDIO2_IRQHandler
-   .thumb_set SDIO2_IRQHandler ,Default_Handler
-
-   .weak      ACC_IRQHandler
-   .thumb_set ACC_IRQHandler,Default_Handler
-
-   .weak      TMR20_BRK_IRQHandler
-   .thumb_set TMR20_BRK_IRQHandler,Default_Handler
-
-   .weak      TMR20_OVF_IRQHandler
-   .thumb_set TMR20_OVF_IRQHandler,Default_Handler
-
-   .weak      TMR20_TRG_HALL_IRQHandler
-   .thumb_set TMR20_TRG_HALL_IRQHandler,Default_Handler
-
-   .weak      TMR20_CH_IRQHandler
-   .thumb_set TMR20_CH_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel1_IRQHandler
-   .thumb_set DMA2_Channel1_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel2_IRQHandler
-   .thumb_set DMA2_Channel2_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel3_IRQHandler
-   .thumb_set DMA2_Channel3_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel4_IRQHandler
-   .thumb_set DMA2_Channel4_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel5_IRQHandler
-   .thumb_set DMA2_Channel5_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel6_IRQHandler
-   .thumb_set DMA2_Channel6_IRQHandler,Default_Handler
-
-   .weak      DMA2_Channel7_IRQHandler
-   .thumb_set DMA2_Channel7_IRQHandler,Default_Handler