diff --git a/bsp/stm32_lib3.1.0/app.c b/bsp/stm32_lib3.1.0/app.c
index 93c25227a1d7ec2704f689d47620f19ed1d3c08a..1bcc6b81d4f56ac8ecce1b29e7a374f3b36cbdef 100644
--- a/bsp/stm32_lib3.1.0/app.c
+++ b/bsp/stm32_lib3.1.0/app.c
@@ -23,14 +23,14 @@ void rt_init_thread_entry001(void *parameter)
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_Init(LEDG_PORT,&GPIO_InitStructure);
 
-    while(1)
+    while (1)
     {
-    rt_kprintf("thread001:%d\r\n",count++);
-    GPIO_ResetBits(LEDG_PORT,LEDG_PIN);
-    rt_thread_delay(64);
-    rt_kprintf("thread001:%d\r\n",count++);
-    GPIO_SetBits(LEDG_PORT,LEDG_PIN);
-    rt_thread_delay(64);
+        rt_kprintf("thread001:%d\r\n",count++);
+        GPIO_ResetBits(LEDG_PORT,LEDG_PIN);
+        rt_thread_delay(RT_TICK_PER_SECOND);
+        rt_kprintf("thread001:%d\r\n",count++);
+        GPIO_SetBits(LEDG_PORT,LEDG_PIN);
+        rt_thread_delay(RT_TICK_PER_SECOND);
     }
 }
 
@@ -48,23 +48,23 @@ void rt_init_thread_entry002(void *parameter)
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_Init(LEDR_PORT,&GPIO_InitStructure);
 
-    while(1)
+    while (1)
     {
-    rt_kprintf("thread001:%d\r\n",count++);
-    GPIO_ResetBits(LEDR_PORT,LEDR_PIN);
-    rt_thread_delay(32);
-    rt_kprintf("thread001:%d\r\n",count++);
-    GPIO_SetBits(LEDR_PORT,LEDR_PIN);
-    rt_thread_delay(32);
+        rt_kprintf("thread001:%d\r\n",count++);
+        GPIO_ResetBits(LEDR_PORT,LEDR_PIN);
+        rt_thread_delay(RT_TICK_PER_SECOND*2);
+        rt_kprintf("thread001:%d\r\n",count++);
+        GPIO_SetBits(LEDR_PORT,LEDR_PIN);
+        rt_thread_delay(RT_TICK_PER_SECOND*2);
     }
 }
 
 int rt_application_init()
 {
-	rt_thread_init(&thread001,"led",rt_init_thread_entry001,RT_NULL,&thread001_stack[0], sizeof(thread001_stack),20,10);
-	rt_thread_init(&thread002,"led2",rt_init_thread_entry002,RT_NULL,&thread002_stack[0], sizeof(thread002_stack),20,10);
-	rt_thread_startup(&thread001);
-	rt_thread_startup(&thread002);
+    rt_thread_init(&thread001,"led",rt_init_thread_entry001,RT_NULL,&thread001_stack[0], sizeof(thread001_stack),20,10);
+    rt_thread_init(&thread002,"led2",rt_init_thread_entry002,RT_NULL,&thread002_stack[0], sizeof(thread002_stack),20,10);
+    rt_thread_startup(&thread001);
+    rt_thread_startup(&thread002);
 
     return 0;
 }
diff --git a/bsp/stm32_lib3.1.0/board.c b/bsp/stm32_lib3.1.0/board.c
index 70b6a212f42ed6e62e6cea51fdef24b6aee8a4a9..6e6b06a65f22320b8f0c01dbfa2fefbf6b99d82d 100644
--- a/bsp/stm32_lib3.1.0/board.c
+++ b/bsp/stm32_lib3.1.0/board.c
@@ -1,59 +1,6 @@
 #include <rtthread.h>
 #include "stm32f10x.h"
 
-
-ErrorStatus HSEStartUpStatus;
-
-/*******************************************************************************
- * Function Name  : RCC_Configuration
- * Description    : Configures the different system clocks.
- * Input          : None
- * Output         : None
- * Return         : None
- *******************************************************************************/
-void RCC_Configuration(void)
-{
-    /* RCC system reset(for debug purpose) */
-    RCC_DeInit();
-
-    /* Enable HSE */
-    RCC_HSEConfig(RCC_HSE_ON);
-
-    /* Wait till HSE is ready */
-    HSEStartUpStatus = RCC_WaitForHSEStartUp();
-
-    if (HSEStartUpStatus == SUCCESS)
-    {
-        /* HCLK = SYSCLK */
-        RCC_HCLKConfig(RCC_SYSCLK_Div1);
-
-        /* PCLK2 = HCLK */
-        RCC_PCLK2Config(RCC_HCLK_Div1);
-        /* PCLK1 = HCLK/2 */
-        RCC_PCLK1Config(RCC_HCLK_Div2);
-
-        /* Flash 2 wait state */
-        FLASH_SetLatency(FLASH_Latency_2);
-        /* Enable Prefetch Buffer */
-        FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
-
-        /* PLLCLK = 8MHz * 9 = 72 MHz */
-        RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_6);
-
-        /* Enable PLL */
-        RCC_PLLCmd(ENABLE);
-
-        /* Wait till PLL is ready */
-        while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) ;
-
-        /* Select PLL as system clock source */
-        RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
-
-        /* Wait till PLL is used as system clock source */
-        while (RCC_GetSYSCLKSource() != 0x08) ;
-    }
-}
-
 /*******************************************************************************
 * Function Name  : NVIC_Configuration
 * Description    : Configures the nested vectored interrupt controller.
@@ -90,8 +37,6 @@ void  SysTick_Configuration(void)
 
     SysTick_Config(cnts);
     SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
-    //SysTick_CounterCmd(SysTick_Counter_Enable);
-    //SysTick_ITConfig(ENABLE);
 }
 
 /* init console to support rt_kprintf */
@@ -173,8 +118,6 @@ void rt_hw_console_output(const char* str)
 
 void board_init(void)
 {
-    RCC_Configuration();
-
     /* NVIC Configuration */
     NVIC_Configuration();
 
@@ -191,12 +134,12 @@ void board_init(void)
 extern void rt_hw_interrupt_thread_switch(void);
 void rt_hw_timer_handler(void)
 {
-	/* enter interrupt */
-	rt_interrupt_enter();
+    /* enter interrupt */
+    rt_interrupt_enter();
 
-	rt_tick_increase();
+    rt_tick_increase();
 
-	/* leave interrupt */
-	rt_interrupt_leave();
-	rt_hw_interrupt_thread_switch();
+    /* leave interrupt */
+    rt_interrupt_leave();
+    rt_hw_interrupt_thread_switch();
 }
diff --git a/bsp/stm32_lib3.1.0/main.c b/bsp/stm32_lib3.1.0/main.c
index ae8c60ef2279608725d4e3487804a80216592561..16fdf00acff18cfd321590a2aec6803140f5165d 100644
--- a/bsp/stm32_lib3.1.0/main.c
+++ b/bsp/stm32_lib3.1.0/main.c
@@ -15,54 +15,55 @@ extern int __bss_end;
 
 void rtthread_startup(void)
 {
-    board_init();
-
     /* show version */
-	rt_show_version();
+    rt_show_version();
 
-	/* init tick */
-	rt_system_tick_init();
+    /* init tick */
+    rt_system_tick_init();
 
-	/* init kernel object */
-	rt_system_object_init();
+    /* init kernel object */
+    rt_system_object_init();
 
-	/* init timer system */
-	rt_system_timer_init();
+    /* init timer system */
+    rt_system_timer_init();
 
 #ifdef RT_USING_HEAP
 #ifdef __CC_ARM
-	rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)0x20005000);
-	//#warning Image$$RW_IRAM1$$ZI$$Limit
+    rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)0x20005000);
+    //#warning Image$$RW_IRAM1$$ZI$$Limit
 #elif __ICCARM__
     rt_system_heap_init(__segment_end("HEAP"), (void*)0x20005000);
 #else
-	/* init memory system */
-	rt_system_heap_init((void*)&__bss_end, (void*)0x20005000);
+    /* init memory system */
+    rt_system_heap_init((void*)&__bss_end, (void*)0x20005000);
 #endif
 #endif
 
-	/* init scheduler system */
-	rt_system_scheduler_init();
+    /* init scheduler system */
+    rt_system_scheduler_init();
 
-	/* init all device */
-	rt_device_init_all();
+    /* init all device */
+    rt_device_init_all();
 
-	/* init application */
-	rt_application_init();
+    /* init application */
+    rt_application_init();
 
-	/* init idle thread */
-	rt_thread_idle_init();
+    /* init idle thread */
+    rt_thread_idle_init();
 
-	/* start scheduler */
-	rt_system_scheduler_start();
+    /* start scheduler */
+    rt_system_scheduler_start();
 }
 
 int main(void)
 {
-	rt_uint32_t UNUSED level;
+    rt_uint32_t UNUSED level;
 
-	/* disable interrupt first */
-	level = rt_hw_interrupt_disable();
+    /* disable interrupt first */
+    level = rt_hw_interrupt_disable();
+
+    SystemInit();
+    board_init();
 
     rtthread_startup();
     while (1);
diff --git a/bsp/stm32_lib3.1.0/stm32f10x_it.c b/bsp/stm32_lib3.1.0/stm32f10x_it.c
index 8daa4f6e56e315651be407d4b6eb2675f16c03b7..6f25d7817ebb974300caee41160252027aa8982f 100644
--- a/bsp/stm32_lib3.1.0/stm32f10x_it.c
+++ b/bsp/stm32_lib3.1.0/stm32f10x_it.c
@@ -575,12 +575,12 @@ extern void rt_hw_timer_handler(void);
 
 void SysTickHandler(void)
 {
-  /* handle os tick */
-  rt_hw_timer_handler();
+    /* handle os tick */
+    rt_hw_timer_handler();
 }
 
 /*******************************************************************************
-* Function Name  :  
+* Function Name  :
 * Description    : This function handles Usage Fault exception.
 * Input          : None
 * Output         : None
@@ -912,7 +912,37 @@ void SDIO_IRQHandler(void)
 {
 }
 
+void DMA2_Channel5_IRQHandler(void)
+{
+}
+
+void ETH_IRQHandler(void)
+{
+}
+
+void ETH_WKUP_IRQHandler(void)
+{
+}
+
+void CAN2_TX_IRQHandler(void)
+{
+}
 
+void CAN2_RX0_IRQHandler(void)
+{
+}
+
+void CAN2_RX1_IRQHandler(void)
+{
+}
+
+void CAN2_SCE_IRQHandler(void)
+{
+}
+
+void OTG_FS_IRQHandler(void)
+{
+}
 
 /******************************************************************************/
 /*                 STM32F10x Peripherals Interrupt Handlers                   */
diff --git a/bsp/stm32_lib3.1.0/stm32f10x_it.h b/bsp/stm32_lib3.1.0/stm32f10x_it.h
index daf2abdc2b74ad51dd9f7cc6606012082c90a579..fe38e5449822798d9cf2de772d6680ea40a79e8e 100644
--- a/bsp/stm32_lib3.1.0/stm32f10x_it.h
+++ b/bsp/stm32_lib3.1.0/stm32f10x_it.h
@@ -97,6 +97,7 @@ extern "C"
     void EXTI15_10_IRQHandler(void);
     void RTCAlarm_IRQHandler(void);
     void USBWakeUp_IRQHandler(void);
+    /****** HD ******/
     void TIM8_BRK_IRQHandler(void);
     void TIM8_UP_IRQHandler(void);
     void TIM8_TRG_COM_IRQHandler(void);
@@ -114,6 +115,15 @@ extern "C"
     void DMA2_Channel2_IRQHandler(void);
     void DMA2_Channel3_IRQHandler(void);
     void DMA2_Channel4_5_IRQHandler(void);
+    /*********  CL **********/
+    void DMA2_Channel5_IRQHandler(void);
+    void ETH_IRQHandler(void);
+    void ETH_WKUP_IRQHandler(void);
+    void CAN2_TX_IRQHandler(void);
+    void CAN2_RX0_IRQHandler(void);
+    void CAN2_RX1_IRQHandler(void);
+    void CAN2_SCE_IRQHandler(void);
+    void OTG_FS_IRQHandler(void);
 
 #ifdef __cplusplus
 }