add spi flash driver

11 files changed, 4150 insertions, 2558 deletions

diff --git a/bsp/gd32450z-eval/applications/application.c b/bsp/gd32450z-eval/applications/application.c
index 5284d36e83..533fcb4749 100644
--- a/bsp/gd32450z-eval/applications/application.c
+++ b/bsp/gd32450z-eval/applications/application.c
@@ -22,6 +22,16 @@
 #include <rtgui/driver.h>
 #endif
 
+#ifdef RT_USING_DFS
+/* dfs init */
+#include <dfs_init.h>
+/* dfs filesystem:ELM filesystem init */
+#include <dfs_elm.h>
+/* dfs Filesystem APIs */
+#include <dfs_fs.h>
+#include <dfs_posix.h>
+#endif
+
 #include <gd32f4xx.h>
 
 void  gd_eval_led_init (void)
@@ -56,6 +66,22 @@ void rt_init_thread_entry(void* parameter)
 	}
 #endif
     
+#ifdef RT_USING_DFS  
+    #ifdef RT_USING_DFS_ELMFAT
+        /* mount sd card fat partition 0 as root directory */
+        if (dfs_mount("gd25q16", "/", "elm", 0, 0) == 0)
+        {
+            rt_kprintf("spi flash mount to / !\n");
+        }
+        else
+        {
+            rt_kprintf("spi flash mount to / failed!\n");
+        }
+    #endif /* RT_USING_DFS_ELMFAT */
+        
+#endif /* DFS */
+
+    
     while(1)
     {
         GPIO_TG(GPIOD) = GPIO_PIN_4;
diff --git a/bsp/gd32450z-eval/drivers/SConscript b/bsp/gd32450z-eval/drivers/SConscript
index e928c6695d..40107508d7 100644
--- a/bsp/gd32450z-eval/drivers/SConscript
+++ b/bsp/gd32450z-eval/drivers/SConscript
@@ -9,14 +9,25 @@ src = Split("""
 board.c
 drv_exmc_sdram.c
 drv_usart.c
-gd32f450z_lcd_eval.c
-drv_lcd.c
-drv_enet.c
-synopsys_emac.c
 """)
 
 CPPPATH = [cwd]
 
+# add Ethernet drivers.
+if GetDepend('RT_USING_LWIP'):
+    src += ['drv_enet.c', 'synopsys_emac.c']
+    
+# add lcd drivers.
+if GetDepend('RT_USING_GUIENGINE'):
+    src += ['drv_lcd.c', 'gd32f450z_lcd_eval.c']
+
+# add spi flash drivers.
+if GetDepend('RT_USING_SFUD'):
+    src += ['drv_spi_flash.c', 'drv_spi.c']    
+elif GetDepend('RT_USING_SPI'):
+    src += ['drv_spi.c']
+
+
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
 
 Return('group')
diff --git a/bsp/gd32450z-eval/drivers/drv_spi.c b/bsp/gd32450z-eval/drivers/drv_spi.c
new file mode 100644
index 0000000000..87ca4800bd
--- /dev/null
+++ b/bsp/gd32450z-eval/drivers/drv_spi.c
@@ -0,0 +1,347 @@
+/*
+ * File      : drv_spi.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2017 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-06-05     tanek        first implementation.
+ */
+ 
+#include "drv_spi.h"
+
+#include <board.h>
+#include <finsh.h>
+
+//#define DEBUG
+
+#define ARR_LEN(__N)      (sizeof(__N) / sizeof(__N[0]))
+
+#ifdef DEBUG
+#define DEBUG_PRINTF(...)   rt_kprintf(__VA_ARGS__)
+#else
+#define DEBUG_PRINTF(...)   
+#endif
+
+/* private rt-thread spi ops function */
+static rt_err_t configure(struct rt_spi_device* device, struct rt_spi_configuration* configuration);
+static rt_uint32_t xfer(struct rt_spi_device* device, struct rt_spi_message* message);
+
+static struct rt_spi_ops stm32_spi_ops =
+{
+    configure,
+    xfer
+};
+
+static rt_err_t configure(struct rt_spi_device* device,
+                          struct rt_spi_configuration* configuration)
+{
+    struct rt_spi_bus * spi_bus = (struct rt_spi_bus *)device->bus;	
+    struct stm32f4_spi *f4_spi = (struct stm32f4_spi *)spi_bus->parent.user_data;
+    
+    spi_parameter_struct spi_init_struct;
+
+    uint32_t spi_periph = f4_spi->spi_periph;
+
+
+	RT_ASSERT(device != RT_NULL);
+	RT_ASSERT(configuration != RT_NULL);
+
+    /* data_width */
+    if(configuration->data_width <= 8)
+    {
+        spi_init_struct.frame_size = SPI_FRAMESIZE_8BIT;
+    }
+    else if(configuration->data_width <= 16)
+    {
+        spi_init_struct.frame_size = SPI_FRAMESIZE_16BIT;
+    }
+    else
+    {
+        return RT_EIO;
+    }
+
+    /* baudrate */
+    {
+        rcu_clock_freq_enum spi_src;
+        uint32_t spi_apb_clock;
+        uint32_t max_hz;
+
+        max_hz = configuration->max_hz;
+
+        DEBUG_PRINTF("sys   freq: %d\n", HAL_RCC_GetSysClockFreq());
+        DEBUG_PRINTF("pclk2 freq: %d\n", HAL_RCC_GetPCLK2Freq());
+        DEBUG_PRINTF("max   freq: %d\n", max_hz);
+
+        if (spi_periph == SPI1 || spi_periph == SPI2)
+        {
+            spi_src = CK_APB1;
+        }
+        else
+        {
+            spi_src = CK_APB2;
+        }
+        spi_apb_clock = rcu_clock_freq_get(spi_src);
+
+        if(max_hz >= spi_apb_clock/2)
+        {
+            spi_init_struct.prescale = SPI_PSC_2;
+        }
+        else if (max_hz >= spi_apb_clock/4)
+        {
+            spi_init_struct.prescale = SPI_PSC_4;
+        }
+        else if (max_hz >= spi_apb_clock/8)
+        {
+            spi_init_struct.prescale = SPI_PSC_8;
+        }
+        else if (max_hz >= spi_apb_clock/16)
+        {
+            spi_init_struct.prescale = SPI_PSC_16;
+        }
+        else if (max_hz >= spi_apb_clock/32)
+        {
+            spi_init_struct.prescale = SPI_PSC_32;
+        }
+        else if (max_hz >= spi_apb_clock/64)
+        {
+            spi_init_struct.prescale = SPI_PSC_64;
+        }
+        else if (max_hz >= spi_apb_clock/128)
+        {
+            spi_init_struct.prescale = SPI_PSC_128;
+        }
+        else
+        {
+            /*  min prescaler 256 */
+            spi_init_struct.prescale = SPI_PSC_256;
+        }
+    } /* baudrate */
+    
+    switch(configuration->mode)
+    {
+    case RT_SPI_MODE_0:
+        spi_init_struct.clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
+        break;
+    case RT_SPI_MODE_1:
+        spi_init_struct.clock_polarity_phase = SPI_CK_PL_LOW_PH_2EDGE;
+        break;        
+    case RT_SPI_MODE_2:
+        spi_init_struct.clock_polarity_phase = SPI_CK_PL_HIGH_PH_1EDGE;
+        break;    
+    case RT_SPI_MODE_3:
+        spi_init_struct.clock_polarity_phase = SPI_CK_PL_HIGH_PH_2EDGE;
+        break;
+    }
+    
+    /* MSB or LSB */
+    if(configuration->mode & RT_SPI_MSB)
+    {
+        spi_init_struct.endian = SPI_ENDIAN_MSB;
+    }
+    else
+    {
+        spi_init_struct.endian = SPI_ENDIAN_LSB;
+    }
+    
+    spi_init_struct.trans_mode = SPI_TRANSMODE_FULLDUPLEX;
+    spi_init_struct.device_mode = SPI_MASTER;
+    spi_init_struct.nss = SPI_NSS_SOFT;
+    
+    spi_crc_off(spi_periph);
+
+    /* init SPI */
+    spi_init(spi_periph, &spi_init_struct);
+    /* Enable SPI_MASTER */
+	spi_enable(spi_periph);
+    
+    return RT_EOK;
+};
+
+static rt_uint32_t xfer(struct rt_spi_device* device, struct rt_spi_message* message)
+{
+    struct rt_spi_bus * stm32_spi_bus = (struct rt_spi_bus *)device->bus;
+    struct stm32f4_spi *f4_spi = (struct stm32f4_spi *)stm32_spi_bus->parent.user_data;
+    struct rt_spi_configuration * config = &device->config;
+    struct stm32_spi_cs * stm32_spi_cs = device->parent.user_data;
+    uint32_t spi_periph = f4_spi->spi_periph;
+
+	RT_ASSERT(device != NULL);
+	RT_ASSERT(message != NULL);
+	
+    /* take CS */
+    if(message->cs_take)
+    {
+        gpio_bit_reset(stm32_spi_cs->GPIOx, stm32_spi_cs->GPIO_Pin);
+        DEBUG_PRINTF("spi take cs\n");
+    }
+
+    {
+        if(config->data_width <= 8)
+        {
+            const rt_uint8_t * send_ptr = message->send_buf;
+            rt_uint8_t * recv_ptr = message->recv_buf;
+            rt_uint32_t size = message->length;
+            
+            DEBUG_PRINTF("spi poll transfer start: %d\n", size);
+
+            while(size--)
+            {
+                rt_uint8_t data = 0xFF;
+
+                if(send_ptr != RT_NULL)
+                {
+                    data = *send_ptr++;
+                }
+                
+                // Todo: replace register read/write by stm32f4 lib
+                //Wait until the transmit buffer is empty
+                while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_TBE));
+                // Send the byte
+				spi_i2s_data_transmit(spi_periph, data);
+
+                //Wait until a data is received
+                while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_RBNE));
+                // Get the received data
+                data = spi_i2s_data_receive(spi_periph);
+
+                if(recv_ptr != RT_NULL)
+                {
+                    *recv_ptr++ = data;
+                }
+            }
+            DEBUG_PRINTF("spi poll transfer finsh\n");
+        }
+        else if(config->data_width <= 16)
+        {
+            const rt_uint16_t * send_ptr = message->send_buf;
+            rt_uint16_t * recv_ptr = message->recv_buf;
+            rt_uint32_t size = message->length;
+
+            while(size--)
+            {
+                rt_uint16_t data = 0xFF;
+
+                if(send_ptr != RT_NULL)
+                {
+                    data = *send_ptr++;
+                }
+
+                //Wait until the transmit buffer is empty
+                while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_TBE));
+                // Send the byte
+				spi_i2s_data_transmit(spi_periph, data);
+
+                //Wait until a data is received
+                while(RESET == spi_i2s_flag_get(spi_periph, SPI_FLAG_RBNE));
+                // Get the received data
+                data = spi_i2s_data_receive(spi_periph);
+
+                if(recv_ptr != RT_NULL)
+                {
+                    *recv_ptr++ = data;
+                }
+            }
+        }
+    }
+
+    /* release CS */
+    if(message->cs_release)
+    {
+		gpio_bit_set(stm32_spi_cs->GPIOx, stm32_spi_cs->GPIO_Pin);
+        DEBUG_PRINTF("spi release cs\n");
+    }
+
+    return message->length;
+};
+
+
+static struct rt_spi_bus spi_bus[];
+
+static const struct stm32f4_spi spis[] = {
+#ifdef RT_USING_SPI0
+    {SPI0, RCU_SPI0, &spi_bus[0]},
+#endif
+    
+#ifdef RT_USING_SPI1
+    {SPI1, RCU_SPI1, &spi_bus[1]},
+#endif
+
+#ifdef RT_USING_SPI2
+    {SPI2, RCU_SPI2, &spi_bus[2]},
+#endif
+
+#ifdef RT_USING_SPI3
+    {SPI3, RCU_SPI3, &spi_bus[3]},
+#endif
+    
+#ifdef RT_USING_SPI4
+    {SPI4, RCU_SPI4, &spi_bus[4]},
+#endif
+    
+#ifdef RT_USING_SPI5
+    {SPI5, RCU_SPI5, &spi_bus[5]},
+#endif
+};
+
+static struct rt_spi_bus spi_bus[ARR_LEN(spis)];
+
+/** \brief init and register stm32 spi bus.
+ *
+ * \param SPI: STM32 SPI, e.g: SPI1,SPI2,SPI3.
+ * \param spi_bus_name: spi bus name, e.g: "spi1"
+ * \return
+ *
+ */
+rt_err_t stm32_spi_bus_register(uint32_t spi_periph,
+                            //struct stm32_spi_bus * stm32_spi,
+                            const char * spi_bus_name)
+{
+    int i;
+    
+    RT_ASSERT(spi_bus_name != RT_NULL);
+    
+    for (i = 0; i < ARR_LEN(spis); i++)
+    {
+        if (spi_periph == spis[i].spi_periph)
+        {
+            rcu_periph_clock_enable(spis[i].spi_clk);
+            spis[i].spi_bus->parent.user_data = (void *)&spis[i];
+            rt_spi_bus_register(spis[i].spi_bus, spi_bus_name, &stm32_spi_ops);
+            return RT_EOK;
+        }
+    }
+    
+    return RT_ERROR;
+ 
+#ifdef SPI_USE_DMA
+    /* Configure the DMA handler for Transmission process */
+    p_spi_bus->hdma_tx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
+    p_spi_bus->hdma_tx.Init.PeriphInc           = DMA_PINC_DISABLE;
+    //p_spi_bus->hdma_tx.Init.MemInc              = DMA_MINC_ENABLE;
+    p_spi_bus->hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    p_spi_bus->hdma_tx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
+    p_spi_bus->hdma_tx.Init.Mode                = DMA_NORMAL;
+    p_spi_bus->hdma_tx.Init.Priority            = DMA_PRIORITY_LOW;
+    p_spi_bus->hdma_tx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;         
+    p_spi_bus->hdma_tx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
+    p_spi_bus->hdma_tx.Init.MemBurst            = DMA_MBURST_INC4;
+    p_spi_bus->hdma_tx.Init.PeriphBurst         = DMA_PBURST_INC4;
+    
+    p_spi_bus->hdma_rx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
+    p_spi_bus->hdma_rx.Init.PeriphInc           = DMA_PINC_DISABLE;
+    //p_spi_bus->hdma_rx.Init.MemInc              = DMA_MINC_ENABLE;
+    p_spi_bus->hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    p_spi_bus->hdma_rx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
+    p_spi_bus->hdma_rx.Init.Mode                = DMA_NORMAL;
+    p_spi_bus->hdma_rx.Init.Priority            = DMA_PRIORITY_HIGH;
+    p_spi_bus->hdma_rx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;         
+    p_spi_bus->hdma_rx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
+    p_spi_bus->hdma_rx.Init.MemBurst            = DMA_MBURST_INC4;
+    p_spi_bus->hdma_rx.Init.PeriphBurst         = DMA_PBURST_INC4;
+#endif
+}
diff --git a/bsp/gd32450z-eval/drivers/drv_spi.h b/bsp/gd32450z-eval/drivers/drv_spi.h
new file mode 100644
index 0000000000..4f76f7eaef
--- /dev/null
+++ b/bsp/gd32450z-eval/drivers/drv_spi.h
@@ -0,0 +1,42 @@
+/*
+ * File      : stm32f20x_40x_spi.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 20012-01-01    aozima       first implementation.
+ */
+
+#ifndef STM32F20X_40X_SPI_H_INCLUDED
+#define STM32F20X_40X_SPI_H_INCLUDED
+
+#include <rtthread.h>
+#include <drivers/spi.h>
+
+#include "gd32f4xx.h"
+
+struct stm32f4_spi
+{
+    uint32_t spi_periph;
+    rcu_periph_enum spi_clk;
+    struct rt_spi_bus *spi_bus;
+};
+
+
+struct stm32_spi_cs
+{
+    uint32_t GPIOx;
+    uint32_t GPIO_Pin;
+};
+
+/* public function */
+rt_err_t stm32_spi_bus_register(uint32_t spi_periph,
+								//struct stm32_spi_bus * stm32_spi,
+								const char * spi_bus_name);
+
+#endif // STM32F20X_40X_SPI_H_INCLUDED
diff --git a/bsp/gd32450z-eval/drivers/drv_spi_flash.c b/bsp/gd32450z-eval/drivers/drv_spi_flash.c
new file mode 100644
index 0000000000..8ad36ab0b3
--- /dev/null
+++ b/bsp/gd32450z-eval/drivers/drv_spi_flash.c
@@ -0,0 +1,105 @@
+/*
+ * File      : stm32f20x_40x_spi.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2012-01-01     aozima       first implementation.
+ * 2012-07-27     aozima       fixed variable uninitialized.
+ */
+#include <board.h>
+#include "drv_spi.h"
+#include "spi_flash.h"
+
+#ifdef RT_USING_SFUD
+#include "spi_flash_sfud.h"
+#endif
+
+#ifdef RT_USING_W25QXX
+#include "spi_flash_w25qxx.h"
+#endif
+
+#include <rthw.h>
+#include <finsh.h>
+
+#if defined(RT_USING_SFUD) && defined(RT_USING_W25QXX)
+#error "RT_USING_SFUD and RT_USING_W25QXX only need one"
+#endif
+
+#define SPI_PERIPH                  SPI5
+#define SPI_BUS_NAME                "spi5"
+#define SPI_FLASH_DEVICE_NAME       "spi50"
+#define SPI_FLASH_CHIP              "gd25q16"
+
+static int rt_hw_spi5_init(void)
+{
+    /* register spi bus */
+    {
+		rt_err_t result;
+        
+        rcu_periph_clock_enable(RCU_GPIOG);
+        rcu_periph_clock_enable(RCU_SPI5);
+
+        /* SPI5_CLK(PG13), SPI5_MISO(PG12), SPI5_MOSI(PG14),SPI5_IO2(PG10) and SPI5_IO3(PG11) GPIO pin configuration */
+        gpio_af_set(GPIOG, GPIO_AF_5, GPIO_PIN_10|GPIO_PIN_11| GPIO_PIN_12|GPIO_PIN_13| GPIO_PIN_14);
+        gpio_mode_set(GPIOG, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_10|GPIO_PIN_11| GPIO_PIN_12|GPIO_PIN_13| GPIO_PIN_14);
+        gpio_output_options_set(GPIOG, GPIO_OTYPE_PP, GPIO_OSPEED_200MHZ, GPIO_PIN_10|GPIO_PIN_11| GPIO_PIN_12|GPIO_PIN_13| GPIO_PIN_14);
+
+		result = stm32_spi_bus_register(SPI5, SPI_BUS_NAME);
+        if (result != RT_EOK)
+		{
+			return result;
+		}
+    }
+
+    /* attach cs */
+    {
+        static struct rt_spi_device spi_device;
+        static struct stm32_spi_cs  spi_cs;
+		rt_err_t result;
+        
+        spi_cs.GPIOx = GPIOG;
+        spi_cs.GPIO_Pin = GPIO_PIN_9;
+        
+        /* SPI5_CS(PG9) GPIO pin configuration */
+        gpio_mode_set(GPIOG, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO_PIN_9);
+        gpio_output_options_set(GPIOG, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_9);
+        
+        gpio_bit_set(GPIOG,GPIO_PIN_9);
+
+        result = rt_spi_bus_attach_device(&spi_device, SPI_FLASH_DEVICE_NAME, SPI_BUS_NAME, (void*)&spi_cs);
+		if (result != RT_EOK)
+		{
+			return result;
+		}
+    }
+
+	return RT_EOK;
+}
+INIT_DEVICE_EXPORT(rt_hw_spi5_init);
+
+#ifdef RT_USING_SFUD
+static int rt_hw_spi_flash_with_sfud_init(void)
+{
+    if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_CHIP, SPI_FLASH_DEVICE_NAME))
+    {
+        return RT_ERROR;
+    };
+
+	return RT_EOK;
+}
+INIT_COMPONENT_EXPORT(rt_hw_spi_flash_with_sfud_init)
+#endif
+
+#ifdef RT_USING_W25QXX
+static int rt_hw_spi_flash_init(void)
+{
+    return w25qxx_init(SPI_FLASH_CHIP, SPI_FLASH_DEVICE_NAME);
+}
+INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init)
+#endif
diff --git a/bsp/gd32450z-eval/project.ewp b/bsp/gd32450z-eval/project.ewp
index 976edac9f7..5154f827d1 100644
--- a/bsp/gd32450z-eval/project.ewp
+++ b/bsp/gd32450z-eval/project.ewp
@@ -1,2345 +1,2603 @@
-<project>
-  <fileVersion>2</fileVersion>
-  <configuration>
-    <name>Debug</name>
-    <toolchain>
-      <name>ARM</name>
-    </toolchain>
-    <debug>1</debug>
-    <settings>
-      <name>General</name>
-      <archiveVersion>3</archiveVersion>
-      <data>
-        <version>22</version>
-        <wantNonLocal>1</wantNonLocal>
-        <debug>1</debug>
-        <option>
-          <name>ExePath</name>
-          <state>build\Exe</state>
-        </option>
-        <option>
-          <name>ObjPath</name>
-          <state>build\Obj</state>
-        </option>
-        <option>
-          <name>ListPath</name>
-          <state>build\List</state>
-        </option>
-        <option>
-          <name>Variant</name>
-          <version>21</version>
-          <state>39</state>
-        </option>
-        <option>
-          <name>GEndianMode</name>
-          <state>0</state>
-        </option>
-        <option>
-          <name>Input variant</name>
-          <version>3</version>
-          <state>0</state>
-        </option>
-        <option>
-          <name>Input description</name>
-          <state>Automatic choice of formatter.</state>
-        </option>
-        <option>
-          <name>Output variant</name>
-          <version>2</version>
-          <state>0</state>
-        </option>
-        <option>
-          <name>Output description</name>
-          <state>Automatic choice of formatter.</state>
-        </option>
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+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\libcpu\arm\cortex-m4\context_iar.S</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\libcpu\arm\cortex-m4\cpuport.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\libcpu\arm\common\div0.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\libcpu\arm\common\showmem.c</name>

+        </file>

+    </group>

+    <group>

+        <name>DeviceDrivers</name>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\src\completion.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\src\dataqueue.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\i2c\i2c-bit-ops.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\i2c\i2c_core.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\i2c\i2c_dev.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\src\pipe.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\src\portal.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\src\ringbuffer.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\serial\serial.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\spi\sfud\src\sfud.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\spi\spi_core.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\spi\spi_dev.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\spi\spi_flash_sfud.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\drivers\src\workqueue.c</name>

+        </file>

+    </group>

+    <group>

+        <name>Drivers</name>

+        <file>

+            <name>$PROJ_DIR$\drivers\board.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\drivers\drv_enet.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\drivers\drv_exmc_sdram.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\drivers\drv_spi.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\drivers\drv_spi_flash.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\drivers\drv_usart.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\drivers\synopsys_emac.c</name>

+        </file>

+    </group>

+    <group>

+        <name>Filesystem</name>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\elmfat\option\ccsbcs.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\devfs\console.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\devfs\devfs.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\src\dfs.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\elmfat\dfs_elm.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\src\dfs_file.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\src\dfs_fs.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\src\dfs_posix.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\dfs_uffs.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\elmfat\ff.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_badblock.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_blockinfo.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_buf.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_crc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_debug.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_device.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_ecc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_fd.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_find.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_flash.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_fs.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_init.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_mem.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_mtb.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\uffs_nandif.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_pool.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_public.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\uffs_rtthread.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_tree.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_utils.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\dfs\filesystems\uffs\src\uffs\uffs_version.c</name>

+        </file>

+    </group>

+    <group>

+        <name>finsh</name>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\cmd.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_compiler.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_error.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_heap.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_init.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_node.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_ops.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_parser.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_token.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_var.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\finsh_vm.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\shell.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\finsh\symbol.c</name>

+        </file>

+    </group>

+    <group>

+        <name>GD32_Lib</name>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_adc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_can.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_crc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_ctc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dac.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dbg.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dci.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dma.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_enet.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_exmc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_exti.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_fmc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_fwdgt.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_gpio.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_i2c.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_ipa.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_iref.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_misc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_pmu.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_rcu.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_rtc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_sdio.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_spi.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_syscfg.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_timer.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_tli.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_trng.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_usart.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_wwdgt.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\CMSIS\GD\GD32F4xx\Source\IAR\startup_gd32f4xx.s</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\Libraries\CMSIS\GD\GD32F4xx\Source\system_gd32f4xx.c</name>

+        </file>

+    </group>

+    <group>

+        <name>Kernel</name>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\clock.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\components.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\device.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\idle.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\ipc.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\irq.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\kservice.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\mem.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\memheap.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\mempool.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\module.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\object.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\scheduler.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\thread.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\src\timer.c</name>

+        </file>

+    </group>

+    <group>

+        <name>LwIP</name>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\api_lib.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\api_msg.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\autoip.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\def.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\dhcp.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\dns.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\err.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\etharp.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\ethernetif.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\icmp.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\igmp.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\inet.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\inet_chksum.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\init.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip_addr.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip_frag.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\memp.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netbuf.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netdb.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\netif.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netifapi.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\pbuf.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\raw.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\slipif.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\sockets.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\stats.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\sys.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\arch\sys_arch.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp_in.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp_out.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\tcpip.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\timers.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\udp.c</name>

+        </file>

+    </group>

+    <group>

+        <name>trace</name>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER\SEGGER_RTT.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER\SEGGER_SYSVIEW.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config\SEGGER_SYSVIEW_Config_RTThread.c</name>

+        </file>

+        <file>

+            <name>$PROJ_DIR$\..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config\SEGGER_SYSVIEW_RTThread.c</name>

+        </file>

+    </group>

+</project>

diff --git a/bsp/gd32450z-eval/project.uvproj b/bsp/gd32450z-eval/project.uvproj
index 6d6f87d5ec..7dbf1cbb9c 100644
--- a/bsp/gd32450z-eval/project.uvproj
+++ b/bsp/gd32450z-eval/project.uvproj
@@ -1,10 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
 <Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_proj.xsd">
-
   <SchemaVersion>1.1</SchemaVersion>
-
   <Header>### uVision Project, (C) Keil Software</Header>
-
   <Targets>
     <Target>
       <TargetName>rt-thread_gd32f4xx</TargetName>
@@ -15,26 +12,26 @@
           <Device>GD32F450ZK</Device>
           <Vendor>GigaDevice</Vendor>
           <Cpu>IRAM(0x20000000-0x2002FFFF) IRAM2(0x10000000-0x1000FFFF) IROM(0x08000000-0x082FFFFF) CLOCK(16000000) CPUTYPE("Cortex-M4") FPU2</Cpu>
-          <FlashUtilSpec></FlashUtilSpec>
+          <FlashUtilSpec />
           <StartupFile>"Startup\GD\GD32F4xx\startup_gd32f4xx.s" ("GD32F4xx Startup Code")</StartupFile>
           <FlashDriverDll>UL2CM3(-O207 -S0 -C0 -FO7 -FD20000000 -FC800 -FN1 -FF0GD32F4xx_3MB -FS08000000 -FL0300000)</FlashDriverDll>
           <DeviceId>0</DeviceId>
           <RegisterFile>gd32f4xx0.h</RegisterFile>
-          <MemoryEnv></MemoryEnv>
-          <Cmp></Cmp>
-          <Asm></Asm>
-          <Linker></Linker>
-          <OHString></OHString>
-          <InfinionOptionDll></InfinionOptionDll>
-          <SLE66CMisc></SLE66CMisc>
-          <SLE66AMisc></SLE66AMisc>
-          <SLE66LinkerMisc></SLE66LinkerMisc>
+          <MemoryEnv />
+          <Cmp />
+          <Asm />
+          <Linker />
+          <OHString />
+          <InfinionOptionDll />
+          <SLE66CMisc />
+          <SLE66AMisc />
+          <SLE66LinkerMisc />
           <SFDFile>SFD\GD\GD32F4xx\GD32F4xx.SFR</SFDFile>
           <bCustSvd>0</bCustSvd>
           <UseEnv>0</UseEnv>
-          <BinPath></BinPath>
-          <IncludePath></IncludePath>
-          <LibPath></LibPath>
+          <BinPath />
+          <IncludePath />
+          <LibPath />
           <RegisterFilePath>GD\GD32F4xx\</RegisterFilePath>
           <DBRegisterFilePath>GD\GD32F4xx\</DBRegisterFilePath>
           <TargetStatus>
@@ -58,8 +55,8 @@
           <BeforeCompile>
             <RunUserProg1>0</RunUserProg1>
             <RunUserProg2>0</RunUserProg2>
-            <UserProg1Name></UserProg1Name>
-            <UserProg2Name></UserProg2Name>
+            <UserProg1Name />
+            <UserProg2Name />
             <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
             <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
             <nStopU1X>0</nStopU1X>
@@ -68,21 +65,21 @@
           <BeforeMake>
             <RunUserProg1>0</RunUserProg1>
             <RunUserProg2>0</RunUserProg2>
-            <UserProg1Name></UserProg1Name>
-            <UserProg2Name></UserProg2Name>
+            <UserProg1Name />
+            <UserProg2Name />
             <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
             <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
           </BeforeMake>
           <AfterMake>
             <RunUserProg1>0</RunUserProg1>
             <RunUserProg2>0</RunUserProg2>
-            <UserProg1Name></UserProg1Name>
-            <UserProg2Name></UserProg2Name>
+            <UserProg1Name />
+            <UserProg2Name />
             <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
             <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
           </AfterMake>
           <SelectedForBatchBuild>0</SelectedForBatchBuild>
-          <SVCSIdString></SVCSIdString>
+          <SVCSIdString />
         </TargetCommonOption>
         <CommonProperty>
           <UseCPPCompiler>0</UseCPPCompiler>
@@ -96,8 +93,8 @@
           <AssembleAssemblyFile>0</AssembleAssemblyFile>
           <PublicsOnly>0</PublicsOnly>
           <StopOnExitCode>3</StopOnExitCode>
-          <CustomArgument></CustomArgument>
-          <IncludeLibraryModules></IncludeLibraryModules>
+          <CustomArgument />
+          <IncludeLibraryModules />
           <ComprImg>1</ComprImg>
         </CommonProperty>
         <DllOption>
@@ -106,7 +103,7 @@
           <SimDlgDll>DCM.DLL</SimDlgDll>
           <SimDlgDllArguments>-pCM3</SimDlgDllArguments>
           <TargetDllName>SARMCM3.DLL</TargetDllName>
-          <TargetDllArguments></TargetDllArguments>
+          <TargetDllArguments />
           <TargetDlgDll>TCM.DLL</TargetDlgDll>
           <TargetDlgDllArguments>-pCM3</TargetDlgDllArguments>
         </DllOption>
@@ -144,21 +141,21 @@
             <UsePdscDebugDescription>0</UsePdscDebugDescription>
           </Target>
           <RunDebugAfterBuild>0</RunDebugAfterBuild>
-          <TargetSelection>6</TargetSelection>
+          <TargetSelection>12</TargetSelection>
           <SimDlls>
-            <CpuDll></CpuDll>
-            <CpuDllArguments></CpuDllArguments>
-            <PeripheralDll></PeripheralDll>
-            <PeripheralDllArguments></PeripheralDllArguments>
-            <InitializationFile></InitializationFile>
+            <CpuDll />
+            <CpuDllArguments />
+            <PeripheralDll />
+            <PeripheralDllArguments />
+            <InitializationFile />
           </SimDlls>
           <TargetDlls>
-            <CpuDll></CpuDll>
-            <CpuDllArguments></CpuDllArguments>
-            <PeripheralDll></PeripheralDll>
-            <PeripheralDllArguments></PeripheralDllArguments>
-            <InitializationFile></InitializationFile>
-            <Driver>Segger\JL2CM3.dll</Driver>
+            <CpuDll />
+            <CpuDllArguments />
+            <PeripheralDll />
+            <PeripheralDllArguments />
+            <InitializationFile />
+            <Driver>BIN\CMSIS_AGDI.dll</Driver>
           </TargetDlls>
         </DebugOption>
         <Utilities>
@@ -173,10 +170,10 @@
           <bUseTDR>1</bUseTDR>
           <Flash2>BIN\UL2CM3.DLL</Flash2>
           <Flash3>"" ()</Flash3>
-          <Flash4></Flash4>
-          <pFcarmOut></pFcarmOut>
-          <pFcarmGrp></pFcarmGrp>
-          <pFcArmRoot></pFcArmRoot>
+          <Flash4 />
+          <pFcarmOut />
+          <pFcarmGrp />
+          <pFcArmRoot />
           <FcArmLst>0</FcArmLst>
         </Utilities>
         <TargetArmAds>
@@ -209,7 +206,7 @@
             <RvctClst>0</RvctClst>
             <GenPPlst>0</GenPPlst>
             <AdsCpuType>"Cortex-M4"</AdsCpuType>
-            <RvctDeviceName></RvctDeviceName>
+            <RvctDeviceName />
             <mOS>0</mOS>
             <uocRom>0</uocRom>
             <uocRam>0</uocRam>
@@ -340,7 +337,7 @@
                 <Size>0x10000</Size>
               </OCR_RVCT10>
             </OnChipMemories>
-            <RvctStartVector></RvctStartVector>
+            <RvctStartVector />
           </ArmAdsMisc>
           <Cads>
             <interw>1</interw>
@@ -359,10 +356,10 @@
             <uC99>0</uC99>
             <useXO>0</useXO>
             <VariousControls>
-              <MiscControls></MiscControls>
+              <MiscControls />
               <Define>GD32F4XX, USE_STDPERIPH_DRIVER</Define>
-              <Undefine></Undefine>
-              <IncludePath>applications;.;drivers;Libraries\CMSIS\GD\GD32F4xx\Include;Libraries\CMSIS;Libraries\GD32F4xx_standard_peripheral\Include;..\..\..\git\rt-thread\include;..\..\..\git\rt-thread\libcpu\arm\cortex-m4;..\..\..\git\rt-thread\libcpu\arm\common;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\spi;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\finsh</IncludePath>
+              <Undefine />
+              <IncludePath>applications;.;drivers;Libraries\CMSIS\GD\GD32F4xx\Include;Libraries\CMSIS;Libraries\GD32F4xx_standard_peripheral\Include;..\..\..\git\rt-thread\include;..\..\..\git\rt-thread\libcpu\arm\cortex-m4;..\..\..\git\rt-thread\libcpu\arm\common;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\spi;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\spi\sfud\inc;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\finsh;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include\ipv4;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\arch\include;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include\netif;..\..\..\git\rt-thread\components\trace;..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config;..\..\..\git\rt-thread\components\trace;..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
@@ -376,10 +373,10 @@
             <uSurpInc>0</uSurpInc>
             <useXO>0</useXO>
             <VariousControls>
-              <MiscControls></MiscControls>
-              <Define></Define>
-              <Undefine></Undefine>
-              <IncludePath></IncludePath>
+              <MiscControls />
+              <Define />
+              <Undefine />
+              <IncludePath />
             </VariousControls>
           </Aads>
           <LDads>
@@ -391,13 +388,13 @@
             <useFile>0</useFile>
             <TextAddressRange>0x08000000</TextAddressRange>
             <DataAddressRange>0x20000000</DataAddressRange>
-            <pXoBase></pXoBase>
-            <ScatterFile></ScatterFile>
-            <IncludeLibs></IncludeLibs>
-            <IncludeLibsPath></IncludeLibsPath>
+            <pXoBase />
+            <ScatterFile />
+            <IncludeLibs />
+            <IncludeLibsPath />
             <Misc> --keep *.o(RTMSymTab)  --keep *.o(.rti_fn.*)   --keep *.o(FSymTab) --keep *.o(VSymTab) </Misc>
-            <LinkerInputFile></LinkerInputFile>
-            <DisabledWarnings></DisabledWarnings>
+            <LinkerInputFile />
+            <DisabledWarnings />
           </LDads>
         </TargetArmAds>
       </TargetOption>
@@ -410,6 +407,43 @@
               <FileType>1</FileType>
               <FilePath>applications\application.c</FilePath>
             </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>benchmark.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>applications\benchmark.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>device_test.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>applications\device_test.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>mem_test.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>applications\mem_test.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>ping.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>applications\ping.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>rtgui_demo.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>applications\rtgui_demo.c</FilePath>
+            </File>
+          </Files>
+          <Files>
             <File>
               <FileName>startup.c</FileName>
               <FileType>1</FileType>
@@ -425,53 +459,47 @@
               <FileType>1</FileType>
               <FilePath>drivers\board.c</FilePath>
             </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>drv_exmc_sdram.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers\drv_exmc_sdram.c</FilePath>
+            </File>
+          </Files>
+          <Files>
             <File>
               <FileName>drv_usart.c</FileName>
               <FileType>1</FileType>
               <FilePath>drivers\drv_usart.c</FilePath>
-              <FileOption>
-                <CommonProperty>
-                  <UseCPPCompiler>2</UseCPPCompiler>
-                  <RVCTCodeConst>0</RVCTCodeConst>
-                  <RVCTZI>0</RVCTZI>
-                  <RVCTOtherData>0</RVCTOtherData>
-                  <ModuleSelection>0</ModuleSelection>
-                  <IncludeInBuild>0</IncludeInBuild>
-                  <AlwaysBuild>2</AlwaysBuild>
-                  <GenerateAssemblyFile>2</GenerateAssemblyFile>
-                  <AssembleAssemblyFile>2</AssembleAssemblyFile>
-                  <PublicsOnly>2</PublicsOnly>
-                  <StopOnExitCode>11</StopOnExitCode>
-                  <CustomArgument></CustomArgument>
-                  <IncludeLibraryModules></IncludeLibraryModules>
-                  <ComprImg>1</ComprImg>
-                </CommonProperty>
-                <FileArmAds>
-                  <Cads>
-                    <interw>2</interw>
-                    <Optim>0</Optim>
-                    <oTime>2</oTime>
-                    <SplitLS>2</SplitLS>
-                    <OneElfS>2</OneElfS>
-                    <Strict>2</Strict>
-                    <EnumInt>2</EnumInt>
-                    <PlainCh>2</PlainCh>
-                    <Ropi>2</Ropi>
-                    <Rwpi>2</Rwpi>
-                    <wLevel>0</wLevel>
-                    <uThumb>2</uThumb>
-                    <uSurpInc>2</uSurpInc>
-                    <uC99>2</uC99>
-                    <useXO>2</useXO>
-                    <VariousControls>
-                      <MiscControls></MiscControls>
-                      <Define></Define>
-                      <Undefine></Undefine>
-                      <IncludePath></IncludePath>
-                    </VariousControls>
-                  </Cads>
-                </FileArmAds>
-              </FileOption>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>drv_enet.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers\drv_enet.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>synopsys_emac.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers\synopsys_emac.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>drv_spi_flash.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers\drv_spi_flash.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>drv_spi.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers\drv_spi.c</FilePath>
             </File>
           </Files>
         </Group>
@@ -483,151 +511,211 @@
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_adc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_can.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_can.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_crc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_crc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_ctc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_ctc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dac.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dac.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dbg.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dbg.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dci.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dci.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dma.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dma.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_enet.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_enet.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_exmc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_exmc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_exti.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_exti.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_fmc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_fmc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_fwdgt.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_fwdgt.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_gpio.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_gpio.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_i2c.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_i2c.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_ipa.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_ipa.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_iref.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_iref.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_misc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_misc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_pmu.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_pmu.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_rcu.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_rcu.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_rtc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_rtc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_sdio.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_sdio.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_spi.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_spi.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_syscfg.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_syscfg.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_timer.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_timer.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_tli.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_tli.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_trng.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_trng.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_usart.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_usart.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_wwdgt.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_wwdgt.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>system_gd32f4xx.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\CMSIS\GD\GD32F4xx\Source\system_gd32f4xx.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>startup_gd32f4xx.s</FileName>
               <FileType>2</FileType>
@@ -643,71 +731,99 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\clock.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>components.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\components.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>device.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\device.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>idle.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\idle.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ipc.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\ipc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>irq.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\irq.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>kservice.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\kservice.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>mem.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\mem.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>memheap.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\memheap.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>mempool.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\mempool.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>module.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\module.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>object.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\object.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>scheduler.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\scheduler.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>thread.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\thread.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>timer.c</FileName>
               <FileType>1</FileType>
@@ -723,21 +839,29 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\cortex-m4\cpuport.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>context_rvds.S</FileName>
               <FileType>2</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\cortex-m4\context_rvds.S</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>backtrace.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\common\backtrace.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>div0.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\common\div0.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>showmem.c</FileName>
               <FileType>1</FileType>
@@ -753,56 +877,99 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\i2c\i2c_core.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>i2c_dev.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\i2c\i2c_dev.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>i2c-bit-ops.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\i2c\i2c-bit-ops.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>serial.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\serial\serial.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>spi_core.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\spi\spi_core.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>spi_dev.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\spi\spi_dev.c</FilePath>
             </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>spi_flash_sfud.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\drivers\spi\spi_flash_sfud.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>sfud.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\drivers\spi\sfud\src\sfud.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>sfud_sfdp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\drivers\spi\sfud\src\sfud_sfdp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
             <File>
               <FileName>completion.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\completion.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>dataqueue.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\dataqueue.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>pipe.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\pipe.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>portal.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\portal.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ringbuffer.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\ringbuffer.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>workqueue.c</FileName>
               <FileType>1</FileType>
@@ -818,61 +985,85 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\shell.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>symbol.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\symbol.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>cmd.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\cmd.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_compiler.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_compiler.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_error.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_error.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_heap.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_heap.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_init.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_init.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_node.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_node.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_ops.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_ops.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_parser.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_parser.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_var.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_var.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_vm.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_vm.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_token.c</FileName>
               <FileType>1</FileType>
@@ -880,8 +1071,286 @@
             </File>
           </Files>
         </Group>
+        <Group>
+          <GroupName>LwIP</GroupName>
+          <Files>
+            <File>
+              <FileName>api_lib.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\api_lib.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>api_msg.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\api_msg.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>err.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\err.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>netbuf.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netbuf.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>netdb.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netdb.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>netifapi.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netifapi.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>sockets.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\sockets.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>tcpip.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\tcpip.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>sys_arch.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\arch\sys_arch.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>def.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\def.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>dhcp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\dhcp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>dns.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\dns.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>init.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\init.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>memp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\memp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>netif.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\netif.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>pbuf.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\pbuf.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>raw.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\raw.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>stats.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\stats.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>sys.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\sys.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>tcp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>tcp_in.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp_in.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>tcp_out.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp_out.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>timers.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\timers.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>udp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\udp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>autoip.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\autoip.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>icmp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\icmp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>igmp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\igmp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>inet.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\inet.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>inet_chksum.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\inet_chksum.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>ip.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>ip_addr.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip_addr.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>ip_frag.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip_frag.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>etharp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\etharp.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>ethernetif.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\ethernetif.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>slipif.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\slipif.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>trace</GroupName>
+          <Files>
+            <File>
+              <FileName>SEGGER_SYSVIEW_Config_RTThread.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config\SEGGER_SYSVIEW_Config_RTThread.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>SEGGER_SYSVIEW_RTThread.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config\SEGGER_SYSVIEW_RTThread.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>SEGGER_RTT.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER\SEGGER_RTT.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>SEGGER_SYSVIEW.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER\SEGGER_SYSVIEW.c</FilePath>
+            </File>
+          </Files>
+        </Group>
       </Groups>
     </Target>
   </Targets>
-
 </Project>
diff --git a/bsp/gd32450z-eval/project.uvprojx b/bsp/gd32450z-eval/project.uvprojx
index 84eced5fbe..83b3daf82d 100644
--- a/bsp/gd32450z-eval/project.uvprojx
+++ b/bsp/gd32450z-eval/project.uvprojx
@@ -1,16 +1,12 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
 <Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_projx.xsd">
-
   <SchemaVersion>2.1</SchemaVersion>
-
   <Header>### uVision Project, (C) Keil Software</Header>
-
   <Targets>
     <Target>
       <TargetName>rt-thread_gd32f4xx</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
-      <pCCUsed>5060422::V5.06 update 4 (build 422)::ARMCC</pCCUsed>
       <TargetOption>
         <TargetCommonOption>
           <Device>GD32F450ZK</Device>
@@ -18,28 +14,28 @@
           <PackID>GigaDevice.GD32F4xx_DFP.1.0.1</PackID>
           <PackURL>http://gd32mcu.21ic.com/data/documents/yingyongruanjian/GD32F4</PackURL>
           <Cpu>IRAM(0x20000000,0x030000) IRAM2(0x10000000,0x010000) IROM(0x08000000,0x0300000) CPUTYPE("Cortex-M4") FPU2 CLOCK(12000000) ELITTLE</Cpu>
-          <FlashUtilSpec></FlashUtilSpec>
-          <StartupFile></StartupFile>
+          <FlashUtilSpec />
+          <StartupFile />
           <FlashDriverDll>UL2CM3(-S0 -C0 -P0 -FD20000000 -FC1000 -FN1 -FF0GD32F4xx_3MB -FS08000000 -FL0300000 -FP0($$Device:GD32F450ZK$Flash\GD32F4xx_3MB.FLM))</FlashDriverDll>
           <DeviceId>0</DeviceId>
           <RegisterFile>$$Device:GD32F450ZK$Device\Include\gd32f4xx.h</RegisterFile>
-          <MemoryEnv></MemoryEnv>
-          <Cmp></Cmp>
-          <Asm></Asm>
-          <Linker></Linker>
-          <OHString></OHString>
-          <InfinionOptionDll></InfinionOptionDll>
-          <SLE66CMisc></SLE66CMisc>
-          <SLE66AMisc></SLE66AMisc>
-          <SLE66LinkerMisc></SLE66LinkerMisc>
+          <MemoryEnv />
+          <Cmp />
+          <Asm />
+          <Linker />
+          <OHString />
+          <InfinionOptionDll />
+          <SLE66CMisc />
+          <SLE66AMisc />
+          <SLE66LinkerMisc />
           <SFDFile>$$Device:GD32F450ZK$SVD\GD32F4xx.svd</SFDFile>
           <bCustSvd>0</bCustSvd>
           <UseEnv>0</UseEnv>
-          <BinPath></BinPath>
-          <IncludePath></IncludePath>
-          <LibPath></LibPath>
-          <RegisterFilePath></RegisterFilePath>
-          <DBRegisterFilePath></DBRegisterFilePath>
+          <BinPath />
+          <IncludePath />
+          <LibPath />
+          <RegisterFilePath />
+          <DBRegisterFilePath />
           <TargetStatus>
             <Error>0</Error>
             <ExitCodeStop>0</ExitCodeStop>
@@ -61,8 +57,8 @@
           <BeforeCompile>
             <RunUserProg1>0</RunUserProg1>
             <RunUserProg2>0</RunUserProg2>
-            <UserProg1Name></UserProg1Name>
-            <UserProg2Name></UserProg2Name>
+            <UserProg1Name />
+            <UserProg2Name />
             <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
             <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
             <nStopU1X>0</nStopU1X>
@@ -71,8 +67,8 @@
           <BeforeMake>
             <RunUserProg1>0</RunUserProg1>
             <RunUserProg2>0</RunUserProg2>
-            <UserProg1Name></UserProg1Name>
-            <UserProg2Name></UserProg2Name>
+            <UserProg1Name />
+            <UserProg2Name />
             <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
             <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
             <nStopB1X>0</nStopB1X>
@@ -82,14 +78,14 @@
             <RunUserProg1>1</RunUserProg1>
             <RunUserProg2>0</RunUserProg2>
             <UserProg1Name>fromelf --bin !L --output rtthread.bin</UserProg1Name>
-            <UserProg2Name></UserProg2Name>
+            <UserProg2Name />
             <UserProg1Dos16Mode>0</UserProg1Dos16Mode>
             <UserProg2Dos16Mode>0</UserProg2Dos16Mode>
             <nStopA1X>0</nStopA1X>
             <nStopA2X>0</nStopA2X>
           </AfterMake>
           <SelectedForBatchBuild>0</SelectedForBatchBuild>
-          <SVCSIdString></SVCSIdString>
+          <SVCSIdString />
         </TargetCommonOption>
         <CommonProperty>
           <UseCPPCompiler>0</UseCPPCompiler>
@@ -103,8 +99,8 @@
           <AssembleAssemblyFile>0</AssembleAssemblyFile>
           <PublicsOnly>0</PublicsOnly>
           <StopOnExitCode>3</StopOnExitCode>
-          <CustomArgument></CustomArgument>
-          <IncludeLibraryModules></IncludeLibraryModules>
+          <CustomArgument />
+          <IncludeLibraryModules />
           <ComprImg>1</ComprImg>
         </CommonProperty>
         <DllOption>
@@ -137,11 +133,11 @@
           </Flash1>
           <bUseTDR>1</bUseTDR>
           <Flash2>BIN\UL2CM3.DLL</Flash2>
-          <Flash3></Flash3>
-          <Flash4></Flash4>
-          <pFcarmOut></pFcarmOut>
-          <pFcarmGrp></pFcarmGrp>
-          <pFcArmRoot></pFcArmRoot>
+          <Flash3 />
+          <Flash4 />
+          <pFcarmOut />
+          <pFcarmGrp />
+          <pFcArmRoot />
           <FcArmLst>0</FcArmLst>
         </Utilities>
         <TargetArmAds>
@@ -174,7 +170,7 @@
             <RvctClst>0</RvctClst>
             <GenPPlst>0</GenPPlst>
             <AdsCpuType>"Cortex-M4"</AdsCpuType>
-            <RvctDeviceName></RvctDeviceName>
+            <RvctDeviceName />
             <mOS>0</mOS>
             <uocRom>0</uocRom>
             <uocRam>0</uocRam>
@@ -306,7 +302,7 @@
                 <Size>0x10000</Size>
               </OCR_RVCT10>
             </OnChipMemories>
-            <RvctStartVector></RvctStartVector>
+            <RvctStartVector />
           </ArmAdsMisc>
           <Cads>
             <interw>1</interw>
@@ -332,10 +328,10 @@
             <v6WtE>0</v6WtE>
             <v6Rtti>0</v6Rtti>
             <VariousControls>
-              <MiscControls></MiscControls>
-              <Define>GD32F4XX, USE_STDPERIPH_DRIVER</Define>
-              <Undefine></Undefine>
-              <IncludePath>applications;.;drivers;Libraries\CMSIS\GD\GD32F4xx\Include;Libraries\CMSIS;Libraries\GD32F4xx_standard_peripheral\Include;..\..\..\git\rt-thread\include;..\..\..\git\rt-thread\libcpu\arm\cortex-m4;..\..\..\git\rt-thread\libcpu\arm\common;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\spi;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\finsh;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include\ipv4;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\arch\include;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include\netif;..\..\..\git\rt-thread\components\trace;..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config;..\..\..\git\rt-thread\components\trace;..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER</IncludePath>
+              <MiscControls />
+              <Define>GD32F4XX, RT_USING_ARM_LIBC, USE_STDPERIPH_DRIVER</Define>
+              <Undefine />
+              <IncludePath>applications;.;drivers;Libraries\CMSIS\GD\GD32F4xx\Include;Libraries\CMSIS;Libraries\GD32F4xx_standard_peripheral\Include;..\..\..\git\rt-thread\include;..\..\..\git\rt-thread\libcpu\arm\cortex-m4;..\..\..\git\rt-thread\libcpu\arm\common;..\..\..\git\rt-thread\components\dfs\include;..\..\..\git\rt-thread\components\dfs\filesystems\devfs;..\..\..\git\rt-thread\components\dfs\filesystems\elmfat;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\spi;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\drivers\spi\sfud\inc;..\..\..\git\rt-thread\components\drivers\include;..\..\..\git\rt-thread\components\finsh;..\..\..\git\rt-thread\components\libc\armlibc;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include\ipv4;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\arch\include;..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\include\netif;..\..\..\git\rt-thread\components\trace;..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config;..\..\..\git\rt-thread\components\trace;..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
@@ -350,10 +346,10 @@
             <useXO>0</useXO>
             <uClangAs>0</uClangAs>
             <VariousControls>
-              <MiscControls></MiscControls>
-              <Define></Define>
-              <Undefine></Undefine>
-              <IncludePath></IncludePath>
+              <MiscControls />
+              <Define />
+              <Undefine />
+              <IncludePath />
             </VariousControls>
           </Aads>
           <LDads>
@@ -365,13 +361,13 @@
             <useFile>0</useFile>
             <TextAddressRange>0x08000000</TextAddressRange>
             <DataAddressRange>0x20000000</DataAddressRange>
-            <pXoBase></pXoBase>
+            <pXoBase />
             <ScatterFile>.\gd32_rom.ld</ScatterFile>
-            <IncludeLibs></IncludeLibs>
-            <IncludeLibsPath></IncludeLibsPath>
+            <IncludeLibs />
+            <IncludeLibsPath />
             <Misc> --keep *.o(RTMSymTab)  --keep *.o(.rti_fn.*)   --keep *.o(FSymTab) --keep *.o(VSymTab) </Misc>
-            <LinkerInputFile></LinkerInputFile>
-            <DisabledWarnings></DisabledWarnings>
+            <LinkerInputFile />
+            <DisabledWarnings />
           </LDads>
         </TargetArmAds>
       </TargetOption>
@@ -384,31 +380,43 @@
               <FileType>1</FileType>
               <FilePath>applications\application.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>benchmark.c</FileName>
               <FileType>1</FileType>
               <FilePath>applications\benchmark.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>device_test.c</FileName>
               <FileType>1</FileType>
               <FilePath>applications\device_test.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>mem_test.c</FileName>
               <FileType>1</FileType>
               <FilePath>applications\mem_test.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ping.c</FileName>
               <FileType>1</FileType>
               <FilePath>applications\ping.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>rtgui_demo.c</FileName>
               <FileType>1</FileType>
               <FilePath>applications\rtgui_demo.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>startup.c</FileName>
               <FileType>1</FileType>
@@ -424,35 +432,47 @@
               <FileType>1</FileType>
               <FilePath>drivers\board.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>drv_exmc_sdram.c</FileName>
               <FileType>1</FileType>
               <FilePath>drivers\drv_exmc_sdram.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>drv_usart.c</FileName>
               <FileType>1</FileType>
               <FilePath>drivers\drv_usart.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
-              <FileName>gd32f450z_lcd_eval.c</FileName>
+              <FileName>drv_enet.c</FileName>
               <FileType>1</FileType>
-              <FilePath>drivers\gd32f450z_lcd_eval.c</FilePath>
+              <FilePath>drivers\drv_enet.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
-              <FileName>drv_lcd.c</FileName>
+              <FileName>synopsys_emac.c</FileName>
               <FileType>1</FileType>
-              <FilePath>drivers\drv_lcd.c</FilePath>
+              <FilePath>drivers\synopsys_emac.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
-              <FileName>drv_enet.c</FileName>
+              <FileName>drv_spi_flash.c</FileName>
               <FileType>1</FileType>
-              <FilePath>drivers\drv_enet.c</FilePath>
+              <FilePath>drivers\drv_spi_flash.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
-              <FileName>synopsys_emac.c</FileName>
+              <FileName>drv_spi.c</FileName>
               <FileType>1</FileType>
-              <FilePath>drivers\synopsys_emac.c</FilePath>
+              <FilePath>drivers\drv_spi.c</FilePath>
             </File>
           </Files>
         </Group>
@@ -464,151 +484,211 @@
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_adc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_can.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_can.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_crc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_crc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_ctc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_ctc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dac.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dac.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dbg.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dbg.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dci.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dci.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_dma.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_dma.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_enet.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_enet.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_exmc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_exmc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_exti.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_exti.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_fmc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_fmc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_fwdgt.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_fwdgt.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_gpio.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_gpio.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_i2c.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_i2c.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_ipa.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_ipa.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_iref.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_iref.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_misc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_misc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_pmu.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_pmu.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_rcu.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_rcu.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_rtc.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_rtc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_sdio.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_sdio.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_spi.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_spi.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_syscfg.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_syscfg.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_timer.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_timer.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_tli.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_tli.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_trng.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_trng.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_usart.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_usart.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>gd32f4xx_wwdgt.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\GD32F4xx_standard_peripheral\Source\gd32f4xx_wwdgt.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>system_gd32f4xx.c</FileName>
               <FileType>1</FileType>
               <FilePath>Libraries\CMSIS\GD\GD32F4xx\Source\system_gd32f4xx.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>startup_gd32f4xx.s</FileName>
               <FileType>2</FileType>
@@ -624,71 +704,99 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\clock.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>components.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\components.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>device.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\device.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>idle.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\idle.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ipc.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\ipc.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>irq.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\irq.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>kservice.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\kservice.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>mem.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\mem.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>memheap.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\memheap.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>mempool.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\mempool.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>module.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\module.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>object.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\object.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>scheduler.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\scheduler.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>thread.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\src\thread.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>timer.c</FileName>
               <FileType>1</FileType>
@@ -704,21 +812,29 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\cortex-m4\cpuport.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>context_rvds.S</FileName>
               <FileType>2</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\cortex-m4\context_rvds.S</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>backtrace.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\common\backtrace.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>div0.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\libcpu\arm\common\div0.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>showmem.c</FileName>
               <FileType>1</FileType>
@@ -727,6 +843,65 @@
           </Files>
         </Group>
         <Group>
+          <GroupName>Filesystem</GroupName>
+          <Files>
+            <File>
+              <FileName>dfs.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\src\dfs.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>dfs_file.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\src\dfs_file.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>dfs_fs.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\src\dfs_fs.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>dfs_posix.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\src\dfs_posix.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>console.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\filesystems\devfs\console.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>devfs.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\filesystems\devfs\devfs.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>dfs_elm.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\filesystems\elmfat\dfs_elm.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>ff.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\dfs\filesystems\elmfat\ff.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
           <GroupName>DeviceDrivers</GroupName>
           <Files>
             <File>
@@ -734,56 +909,99 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\i2c\i2c_core.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>i2c_dev.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\i2c\i2c_dev.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>i2c-bit-ops.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\i2c\i2c-bit-ops.c</FilePath>
             </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>rtc.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\drivers\rtc\rtc.c</FilePath>
+            </File>
+          </Files>
+          <Files>
             <File>
               <FileName>serial.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\serial\serial.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>spi_core.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\spi\spi_core.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>spi_dev.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\spi\spi_dev.c</FilePath>
             </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>spi_flash_sfud.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\drivers\spi\spi_flash_sfud.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>sfud.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\drivers\spi\sfud\src\sfud.c</FilePath>
+            </File>
+          </Files>
+          <Files>
             <File>
               <FileName>completion.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\completion.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>dataqueue.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\dataqueue.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>pipe.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\pipe.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>portal.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\portal.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ringbuffer.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\drivers\src\ringbuffer.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>workqueue.c</FileName>
               <FileType>1</FileType>
@@ -799,61 +1017,85 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\shell.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>symbol.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\symbol.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>cmd.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\cmd.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_compiler.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_compiler.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_error.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_error.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_heap.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_heap.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_init.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_init.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_node.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_node.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_ops.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_ops.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_parser.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_parser.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_var.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_var.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_vm.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\finsh\finsh_vm.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>finsh_token.c</FileName>
               <FileType>1</FileType>
@@ -862,6 +1104,30 @@
           </Files>
         </Group>
         <Group>
+          <GroupName>libc</GroupName>
+          <Files>
+            <File>
+              <FileName>libc_syms.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\libc\armlibc\libc_syms.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>mem_std.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\libc\armlibc\mem_std.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>stubs.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\git\rt-thread\components\libc\armlibc\stubs.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
           <GroupName>LwIP</GroupName>
           <Files>
             <File>
@@ -869,171 +1135,239 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\api_lib.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>api_msg.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\api_msg.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>err.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\err.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>netbuf.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netbuf.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>netdb.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netdb.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>netifapi.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\netifapi.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>sockets.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\sockets.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>tcpip.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\api\tcpip.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>sys_arch.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\arch\sys_arch.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>def.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\def.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>dhcp.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\dhcp.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>dns.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\dns.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>init.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\init.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>memp.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\memp.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>netif.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\netif.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>pbuf.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\pbuf.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>raw.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\raw.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>stats.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\stats.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>sys.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\sys.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>tcp.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>tcp_in.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp_in.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>tcp_out.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\tcp_out.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>timers.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\timers.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>udp.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\udp.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>autoip.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\autoip.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>icmp.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\icmp.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>igmp.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\igmp.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>inet.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\inet.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>inet_chksum.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\inet_chksum.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ip.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ip_addr.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip_addr.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ip_frag.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\core\ipv4\ip_frag.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>etharp.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\etharp.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>ethernetif.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\net\lwip-1.4.1\src\netif\ethernetif.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>slipif.c</FileName>
               <FileType>1</FileType>
@@ -1049,16 +1383,22 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config\SEGGER_SYSVIEW_Config_RTThread.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>SEGGER_SYSVIEW_RTThread.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\Config\SEGGER_SYSVIEW_RTThread.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>SEGGER_RTT.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\git\rt-thread\components\trace\SystemView_Src_V240\SEGGER\SEGGER_RTT.c</FilePath>
             </File>
+          </Files>
+          <Files>
             <File>
               <FileName>SEGGER_SYSVIEW.c</FileName>
               <FileType>1</FileType>
@@ -1066,24 +1406,19 @@
             </File>
           </Files>
         </Group>
-        <Group>
-          <GroupName>::CMSIS</GroupName>
-        </Group>
       </Groups>
     </Target>
   </Targets>
-
   <RTE>
-    <apis/>
+    <apis />
     <components>
       <component Cclass="CMSIS" Cgroup="CORE" Cvendor="ARM" Cversion="5.0.1" condition="ARMv6_7_8-M Device">
-        <package name="CMSIS" schemaVersion="1.3" url="http://www.keil.com/pack/" vendor="ARM" version="5.0.1"/>
+        <package name="CMSIS" schemaVersion="1.3" url="http://www.keil.com/pack/" vendor="ARM" version="5.0.1" />
         <targetInfos>
-          <targetInfo name="rt-thread_gd32f4xx"/>
+          <targetInfo name="rt-thread_gd32f4xx" />
         </targetInfos>
       </component>
     </components>
-    <files/>
+    <files />
   </RTE>
-
 </Project>
diff --git a/bsp/gd32450z-eval/rtconfig.h b/bsp/gd32450z-eval/rtconfig.h
index fe664bdc13..1e5b64e205 100644
--- a/bsp/gd32450z-eval/rtconfig.h
+++ b/bsp/gd32450z-eval/rtconfig.h
@@ -120,45 +120,40 @@
 #define FINSH_USING_DESCRIPTION
 //#define FINSH_USING_MSH
 
+#define RT_USING_RTC
+#ifdef RT_USING_RTC
+#define RT_RTC_NAME 				"rtc"
+#endif
+
+// <section name="LIBC" description="C Runtime library setting" default="always" >
+// <bool name="RT_USING_LIBC" description="Using libc library" default="true" />
+#define RT_USING_LIBC
+
 /* SECTION: device filesystem */
 /* Using Device file system */
-//#define RT_USING_DFS /**/
+#define RT_USING_DFS /**/
 // <bool name="RT_USING_DFS_DEVFS" description="Using devfs for device objects" default="true" />
 #define RT_USING_DFS_DEVFS
-// <integer name="DFS_FILESYSTEM_TYPES_MAX" description="The maximal number of the supported file system type" default="4" />
-#define DFS_FILESYSTEM_TYPES_MAX  4
+//// <integer name="DFS_FILESYSTEM_TYPES_MAX" description="The maximal number of the supported file system type" default="4" />
+//#define DFS_FILESYSTEM_TYPES_MAX    2
 /* the max number of mounted filesystem */
-#define DFS_FILESYSTEMS_MAX			4
+#define DFS_FILESYSTEMS_MAX			2
 /* the max number of opened files 		*/
-#define DFS_FD_MAX					16
+#define DFS_FD_MAX					4
 //#define DFS_USING_WORKDIR
 
 /* Using ELM FATFS */
 #define RT_USING_DFS_ELMFAT
-#define RT_DFS_ELM_WORD_ACCESS
-/* Reentrancy (thread safe) of the FatFs module.  */
-#define RT_DFS_ELM_REENTRANT
-/* Number of volumes (logical drives) to be used. */
+////#define RT_DFS_ELM_WORD_ACCESS
+///* Reentrancy (thread safe) of the FatFs module.  */
+//#define RT_DFS_ELM_REENTRANT
+///* Number of volumes (logical drives) to be used. */
 #define RT_DFS_ELM_DRIVES			2
-#define RT_DFS_ELM_USE_LFN			3 /* */
-#define RT_DFS_ELM_CODE_PAGE        437
+//#define RT_DFS_ELM_USE_LFN			3 /* */
 #define RT_DFS_ELM_MAX_LFN			255
-/* Maximum sector size to be handled. */
+///* Maximum sector size to be handled. */
 #define RT_DFS_ELM_MAX_SECTOR_SIZE  4096
 
-
-/* DFS: UFFS nand file system options */
-#define RT_USING_DFS_UFFS
-/* configuration for uffs, more to see dfs_uffs.h and uffs_config.h */
-#define RT_CONFIG_UFFS_ECC_MODE    UFFS_ECC_HW_AUTO
-                                 //UFFS_ECC_SOFT
-                                 //UFFS_ECC_HW_AUTO
-                                 
-/* enable this ,you need provide a mark_badblock/check_block function */
-/* #define RT_UFFS_USE_CHECK_MARK_FUNCITON */
-/* Using ROM file system */
-// #define RT_USING_DFS_ROMFS
-
 /* SECTION: lwip, a lighwight TCP/IP protocol stack */
 #define RT_USING_LWIP
 /* LwIP uses RT-Thread Memory Management */
@@ -225,14 +220,18 @@
 
 /* spi driver */
 #define RT_USING_SPI
+#define RT_USING_SPI0
+#define RT_USING_SPI1
+#define RT_USING_SPI2
+#define RT_USING_SPI3
+#define RT_USING_SPI4
 #define RT_USING_SPI5
+//#define RT_USING_W25QXX
+//#define FLASH_DEBUG
 
-/* Serial Flash Universal Driver */
-//#define RT_USING_SFUD
-/* Enable SFUD debug output */
-//#define RT_DEBUG_SFUD					1
-/* serial flash discoverable parameters by JEDEC standard */
-#define RT_SFUD_USING_SFDP
+#define RT_USING_SFUD
+//#define RT_SFUD_USING_SFDP
+#define RT_SFUD_USING_FLASH_INFO_TABLE
 
 #define RT_USING_I2C
 #define RT_USING_I2C_BITOPS
diff --git a/bsp/gd32450z-eval/rtconfig.py b/bsp/gd32450z-eval/rtconfig.py
index 185e89bf45..3d9ffaab8d 100644
--- a/bsp/gd32450z-eval/rtconfig.py
+++ b/bsp/gd32450z-eval/rtconfig.py
@@ -3,7 +3,7 @@ import os
 # toolchains options
 ARCH='arm'
 CPU='cortex-m4'
-CROSS_TOOL='keil'
+CROSS_TOOL='iar'
 
 if os.getenv('RTT_CC'):
     CROSS_TOOL = os.getenv('RTT_CC')
@@ -20,11 +20,9 @@ elif CROSS_TOOL == 'keil':
     PLATFORM 	= 'armcc'
     EXEC_PATH 	= r'C:/Keil_v5'
 elif CROSS_TOOL == 'iar':
-    print '================ERROR============================'
-    print 'Not support iar yet!'
-    print '================================================='
-    exit(0)
-
+    PLATFORM 	= 'iar'
+    EXEC_PATH 	= r'C:/Program Files (x86)/IAR Systems/Embedded Workbench 8.0'
+    
 if os.getenv('RTT_EXEC_PATH'):
 	EXEC_PATH = os.getenv('RTT_EXEC_PATH')
 
@@ -44,12 +42,14 @@ elif PLATFORM == 'armcc':
     DEVICE = ' --cpu=cortex-m4.fp'
     CFLAGS = DEVICE + ' --apcs=interwork --cpu Cortex-M4.fp'
     AFLAGS = DEVICE
-    LFLAGS = DEVICE + ' --info sizes --info totals --info unused --info veneers --list rtthread-gd32.map --scatter stm32_rom.sct'
+    LFLAGS = DEVICE + ' --info sizes --info totals --info unused --info veneers --list rtthread-gd32.map --scatter gd32_rom.sct'
 
     CFLAGS += ' -I' + EXEC_PATH + '/ARM/RV31/INC'
     LFLAGS += ' --libpath ' + EXEC_PATH + '/ARM/RV31/LIB'
 
     EXEC_PATH += '/arm/bin40/'
+    
+    CFLAGS += ' --c99'
 
     if BUILD == 'debug':
         CFLAGS += ' -g -O0'
@@ -67,7 +67,7 @@ elif PLATFORM == 'iar':
     LINK = 'ilinkarm'
     TARGET_EXT = 'out'
 
-    DEVICE = ' -D USE_STDPERIPH_DRIVER' + ' -D STM32F10X_HD'
+    DEVICE = ' -D USE_STDPERIPH_DRIVER' + ' -D GD32F450xK'
 
     CFLAGS = DEVICE
     CFLAGS += ' --diag_suppress Pa050'
@@ -83,7 +83,7 @@ elif PLATFORM == 'iar':
     CFLAGS += ' --cpu=Cortex-M4'
     CFLAGS += ' -e'
     CFLAGS += ' --fpu=None'
-    CFLAGS += ' --dlib_config "' + IAR_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
+    CFLAGS += ' --dlib_config "' + EXEC_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
     CFLAGS += ' -Ol'
     CFLAGS += ' --use_c++_inline'
 
@@ -94,10 +94,10 @@ elif PLATFORM == 'iar':
     AFLAGS += ' --cpu Cortex-M4'
     AFLAGS += ' --fpu None'
 
-    LFLAGS = ' --config stm32f10x_flash.icf'
+    LFLAGS = ' --config gd32_rom.icf'
     LFLAGS += ' --redirect _Printf=_PrintfTiny'
     LFLAGS += ' --redirect _Scanf=_ScanfSmall'
     LFLAGS += ' --entry __iar_program_start'
 
-    EXEC_PATH = IAR_PATH + '/arm/bin/'
+    EXEC_PATH += '/arm/bin/'
     POST_ACTION = ''
diff --git a/bsp/gd32450z-eval/template.uvprojx b/bsp/gd32450z-eval/template.uvprojx
index 0b826dcd0c..d9e889bb99 100644
--- a/bsp/gd32450z-eval/template.uvprojx
+++ b/bsp/gd32450z-eval/template.uvprojx
@@ -321,7 +321,7 @@
             <wLevel>0</wLevel>
             <uThumb>0</uThumb>
             <uSurpInc>0</uSurpInc>
-            <uC99>0</uC99>
+            <uC99>1</uC99>
             <useXO>0</useXO>
             <v6Lang>1</v6Lang>
             <v6LangP>1</v6LangP>