stm32入门系列程序

来源：互联网发布：商情数据编辑：程序博客网时间：2024/05/22 09:39

作者：number007cool

转自：http://blog.chinaunix.net/uid-21658993-id-1820020.html

折腾了两三天，程序终于下载到了stm32的开发办上面去了。

一开始是因为没有设置正确，同时可能是因为自己使用的MDK和j link驱动的版本太低，所以用MDK下载不进去。

后来将软件更新，采用新的版本，下载进去后却发现好像并没有运行。

原来，每次下载完必须重新启动一下开发板才可以。

为了明白这些道理又浪费了我好几天的时间。总之，还是独自一个人在黑暗中摸索。

废话少说，代码如下：

流水灯

/*******************************************************************************
* File Name          : main.c
* Author             : Wuhan R&D Center, Embest
* Date First Issued : 08/08/2008
* Description        : Main program body
********************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
#define ADC1_DR_Address ((u32)0x4001244C)

unsigned short int ADC_ConvertedValue;
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InitTypeDef   ADC_InitStructure;
DMA_InitTypeDef   DMA_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
ErrorStatus HSEStartUpStatus;
extern vu32 TimingDelay;
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void GPIO_Configuration(void);
void Delay(vu32 nTime);
void SysTick_Configuration(void);
void SetupLED (void) ;
extern void SetupADC    (void);

/* Private functions ---------------------------------------------------------*/

/*******************************************************************************
* Function Name : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif

/* Configure the system clocks */
RCC_Configuration();
SysTick_Configuration();

/* NVIC Configuration */
NVIC_Configuration();

/* Configure the GPIO ports */
GPIO_Configuration();

/* Connect EXTI Line9 to PB.9 */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);

/* Configure EXTI Line9 to generate an interrupt on falling edge */
EXTI_InitStructure.EXTI_Line = EXTI_Line9;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);

   for(;;)
   {
GPIOC->ODR = 0xfffffc4f;
Delay(80);
GPIOC->ODR = 0xfffffc8f;
Delay(80);
GPIOC->ODR = 0xfffffd0f;
Delay(80);
GPIOC->ODR = 0xfffffe0f;
Delay(80);
}

}

/*******************************************************************************
* Function Name : SysTick_Configuration
* Description    : Configures the SysTick to generate an interrupt each 1 millisecond.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SysTick_Configuration(void)
{
/* Select AHB clock(HCLK) as SysTick clock source */
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);

/* Set SysTick Priority to 3 */
NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, 3, 0);

/* SysTick interrupt each 1ms with HCLK equal to 72MHz */
SysTick_SetReload(72000);

/* Enable the SysTick Interrupt */
SysTick_ITConfig(ENABLE);
}

/*******************************************************************************
* 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_9);

/* 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)
    {
    }
}

/* Enable GPIOB, GPIOC and AFIO clocks */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC |
                         RCC_APB2Periph_AFIO, ENABLE);
}

/*******************************************************************************
* Function Name : NVIC_Configuration
* Description    : Configures Vector Table base location.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif

/* Configure one bit for preemption priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

/* Enable the EXTI9_5 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

/*******************************************************************************
* Function Name : GPIO_Configuration
* Description    : Configures the different GPIO ports.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

/* Configure PC. as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);

/* Configure PB9 as input floating (EXTI Line9) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}

/*******************************************************************************
* Function Name : Delay
* Description    : Inserts a delay time.
* Input          : nTime: specifies the delay time length, in milliseconds.
* Output         : None
* Return         : None
*******************************************************************************/
void Delay(u32 nTime)
{
/* Enable the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Enable);

TimingDelay = nTime;

while(TimingDelay != 0);

/* Disable the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Disable);
/* Clear the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Clear);
}

/*******************************************************************************
* Function Name : Delay
* Description    : Inserts a delay time.
* Input          : nCount: specifies the delay time length.
* Output         : None
* Return         : None
*******************************************************************************/
/*
void Delay(vu32 nCount)
{
for(; nCount != 0; nCount--);
}

#ifdef DEBUG
/*******************************************************************************
* Function Name : assert_failed
* Description    : Reports the name of the source file and the source line number
*                  where the assert error has occurred.
* Input          : - file: pointer to the source file name
*                  - line: assert error line source number
* Output         : None
* Return         : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{
/* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

/* Infinite loop */
while (1)
{
}
}
#endif

配置GPIO

GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PA. as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);

I/O操作

GPIO_WriteBit(GPIOA,GPIO_Pin_0,(BitAction)0X01); //向GPIOA0写入1
Delay(1000);
GPIO_WriteBit(GPIOA,GPIO_Pin_0,(BitAction)0X00); //向GPIOA0写入0
Delay(1000);
GPIO_WriteBit(GPIOA,GPIO_Pin_1,(BitAction)0X01); //向GPIOA1写入1
Delay(1000);
GPIO_WriteBit(GPIOA,GPIO_Pin_1,(BitAction)0X00); //向GPIOA1写入0
Delay(1000);

外部中断GPIOA_3

main.c文件

/* Includes ------------------------------------------------------------------*/
#include "stdio.h"
#include "stm32f10x_lib.h"

/*******************************************************************************
* Function Name : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void delay(u32 z)
{
u32 x,y;
   for(x=z;x>0;x--)
      for(y=1100;y>0;y--);
}
int main(void)
{
#ifdef DEBUG
debug();
#endif

/* Configure the system clocks */
RCC_Configuration();
SysTick_Configuration();

/* NVIC Configuration */
NVIC_Configuration();

/* Configure the GPIO ports */
GPIO_Configuration();

/* Connect EXTI Line9 to PB.9 */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource3);

/* Configure EXTI Line9 to generate an interrupt on falling edge */
EXTI_InitStructure.EXTI_Line = EXTI_Line3;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);

   for(;;)
   {
GPIOC->ODR = 0xfffffc4f;
Delay(80);
GPIOC->ODR = 0xfffffc8f;
Delay(80);
GPIOC->ODR = 0xfffffd0f;
Delay(80);
GPIOC->ODR = 0xfffffe0f;
Delay(80);

GPIO_WriteBit(GPIOA,GPIO_Pin_0,(BitAction)0X01); //向GPIOA0写入1
Delay(100);
GPIO_WriteBit(GPIOA,GPIO_Pin_0,(BitAction)0X00); //向GPIOA0写入0
Delay(100);
GPIO_WriteBit(GPIOA,GPIO_Pin_1,(BitAction)0X01); //向GPIOA1写入1
Delay(100);
GPIO_WriteBit(GPIOA,GPIO_Pin_1,(BitAction)0X00); //向GPIOA1写入0
Delay(100);
   }
}

/* Set SysTick Priority to 3 */
NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, 3, 0);

/* SysTick interrupt each 1ms with HCLK equal to 72MHz */
SysTick_SetReload(72000);

/* Enable the SysTick Interrupt */
SysTick_ITConfig(ENABLE);
}

/* 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_9);

/* 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);

/* Configure one bit for preemption priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

/* Enable the EXTI3 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

/*******************************************************************************
* Function Name : GPIO_Configuration
* Description    : Configures the different GPIO ports.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PA. as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure PC. as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);

/* Configure PA3 as input floating (EXTI Line9) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}

while(TimingDelay != 0);

/* Disable the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Disable);
/* Clear the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Clear);
}

/* Infinite loop */
while (1)
{
}
}
#endif

stm32f10x_it.c文件

/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : stm32f10x_it.c
* Author             : MCD Application Team
* Date First Issued : 02/05/2007
* Description        : Main Interrupt Service Routines.
*                      This file can be used to describe all the exceptions
*                      subroutines that may occur within user application.
*                      When an interrupt happens, the software will branch
*                      automatically to the corresponding routine.
*                      The following routines are all empty, user can write code
*                      for exceptions handlers and peripherals IRQ interrupts.
********************************************************************************
* History:
* 05/21/2007: V0.3
* 04/02/2007: V0.2
* 02/05/2007: V0.1
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_it.h"
vu32 TimingDelay = 0;
extern void Delay(vu32 nTime);

/*******************************************************************************
* Function Name : NMIException
* Description    : This function handles NMI exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void NMIException(void)
{
}

/*******************************************************************************
* Function Name : HardFaultException
* Description    : This function handles Hard Fault exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void HardFaultException(void)
{
}

/*******************************************************************************
* Function Name : MemManageException
* Description    : This function handles Memory Manage exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void MemManageException(void)
{
}

/*******************************************************************************
* Function Name : BusFaultException
* Description    : This function handles Bus Fault exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void BusFaultException(void)
{
}

/*******************************************************************************
* Function Name : UsageFaultException
* Description    : This function handles Usage Fault exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void UsageFaultException(void)
{
}

/*******************************************************************************
* Function Name : DebugMonitor
* Description    : This function handles Debug Monitor exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DebugMonitor(void)
{
}

/*******************************************************************************
* Function Name : SVCHandler
* Description    : This function handles SVCall exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SVCHandler(void)
{
}

/*******************************************************************************
* Function Name : PendSVC
* Description    : This function handles PendSVC exception.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void PendSVC(void)
{
}

/*******************************************************************************
* Function Name : SysTickHandler
* Description    : This function handles SysTick Handler.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SysTickHandler(void)
{
    TimingDelay--;
}

/*******************************************************************************
* Function Name : PVD_IRQHandler
* Description    : This function handles PVD interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void PVD_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TAMPER_IRQHandler
* Description    : This function handles Tamper interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TAMPER_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : RTC_IRQHandler
* Description    : This function handles RTC global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void RTC_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : FLASH_IRQHandler
* Description    : This function handles Flash interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void FLASH_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : RCC_IRQHandler
* Description    : This function handles RCC interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void RCC_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : EXTI0_IRQHandler
* Description    : This function handles External interrupt Line 0 request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI0_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : EXTI1_IRQHandler
* Description    : This function handles External interrupt Line 1 request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI1_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : EXTI2_IRQHandler
* Description    : This function handles External interrupt Line 2 request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI2_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : EXTI3_IRQHandler
* Description    : This function handles External interrupt Line 3 request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI3_IRQHandler(void)
{
   int i;

if(EXTI_GetITStatus(EXTI_Line3) != RESET)
{
   for(i=0;i<=8000000;i++)

   GPIOC->ODR = 0xfffffC3f;

   for(i=0;i<=2000000;i++)

      GPIOC->ODR = 0xffffffff;

   for(i=0;i<=1000000;i++)


/* Clear the EXTI line 9 pending bit */
    EXTI_ClearITPendingBit(EXTI_Line3);
}
}

/*******************************************************************************
* Function Name : EXTI4_IRQHandler
* Description    : This function handles External interrupt Line 4 request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI4_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : DMAChannel1_IRQHandler
* Description    : This function handles DMA Stream 1 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DMAChannel1_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : DMAChannel2_IRQHandler
* Description    : This function handles DMA Stream 2 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DMAChannel2_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : DMAChannel3_IRQHandler
* Description    : This function handles DMA Stream 3 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DMAChannel3_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : DMAChannel4_IRQHandler
* Description    : This function handles DMA Stream 4 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DMAChannel4_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : DMAChannel5_IRQHandler
* Description    : This function handles DMA Stream 5 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DMAChannel5_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : DMAChannel6_IRQHandler
* Description    : This function handles DMA Stream 6 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DMAChannel6_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : DMAChannel7_IRQHandler
* Description    : This function handles DMA Stream 7 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void DMAChannel7_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : ADC_IRQHandler
* Description    : This function handles ADC global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void ADC_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : USB_HP_CAN_TX_IRQHandler
* Description    : This function handles USB High Priority or CAN TX interrupts
*                  requests.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USB_HP_CAN_TX_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : USB_LP_CAN_RX0_IRQHandler
* Description    : This function handles USB Low Priority or CAN RX0 interrupts
*                  requests.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USB_LP_CAN_RX0_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : CAN_RX1_IRQHandler
* Description    : This function handles CAN RX1 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void CAN_RX1_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : CAN_SCE_IRQHandler
* Description    : This function handles CAN SCE interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void CAN_SCE_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : EXTI9_5_IRQHandler
* Description    : This function handles External lines 9 to 5 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI9_5_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TIM1_BRK_IRQHandler
* Description    : This function handles TIM1 Break interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM1_BRK_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TIM1_UP_IRQHandler
* Description    : This function handles TIM1 overflow and update interrupt
*                  request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM1_UP_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TIM1_TRG_COM_IRQHandler
* Description    : This function handles TIM1 Trigger and Commutation interrupts
*                  requests.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM1_TRG_COM_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TIM1_CC_IRQHandler
* Description    : This function handles TIM1 capture compare interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM1_CC_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TIM2_IRQHandler
* Description    : This function handles TIM2 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM2_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TIM3_IRQHandler
* Description    : This function handles TIM3 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM3_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : TIM4_IRQHandler
* Description    : This function handles TIM4 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM4_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : I2C1_EV_IRQHandler
* Description    : This function handles I2C1 Event interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void I2C1_EV_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : I2C1_ER_IRQHandler
* Description    : This function handles I2C1 Error interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void I2C1_ER_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : I2C2_EV_IRQHandler
* Description    : This function handles I2C2 Event interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void I2C2_EV_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : I2C2_ER_IRQHandler
* Description    : This function handles I2C2 Error interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void I2C2_ER_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : SPI1_IRQHandler
* Description    : This function handles SPI1 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SPI1_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : SPI2_IRQHandler
* Description    : This function handles SPI2 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SPI2_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : USART1_IRQHandler
* Description    : This function handles USART1 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USART1_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : USART2_IRQHandler
* Description    : This function handles USART2 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USART2_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : USART3_IRQHandler
* Description    : This function handles USART3 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USART3_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : EXTI15_10_IRQHandler
* Description    : This function handles External lines 15 to 10 interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI15_10_IRQHandler(void)
{

}

/*******************************************************************************
* Function Name : RTCAlarm_IRQHandler
* Description    : This function handles RTC Alarm interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void RTCAlarm_IRQHandler(void)
{
}

/*******************************************************************************
* Function Name : USBWakeUp_IRQHandler
* Description    : This function handles USB WakeUp interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USBWakeUp_IRQHandler(void)
{
}

使用外部中断3须作出的准备有：

1.初始化

/* Connect EXTI Line3 to PA.3 */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource3);

/* Configure EXTI Line3 to generate an interrupt on falling edge */
EXTI_InitStructure.EXTI_Line = EXTI_Line3;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);

2.NVIC

void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif

3.GPIO

void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PA. as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure PC. as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);

/* Configure PA3 as input floating (EXTI Line3) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}

4.中断服务子函数

void EXTI3_IRQHandler(void)
{
   int i;

if(EXTI_GetITStatus(EXTI_Line3) != RESET)
{
   for(i=0;i<=8000000;i++)

   GPIOC->ODR = 0xfffffC3f;

   for(i=0;i<=2000000;i++)

      GPIOC->ODR = 0xffffffff;

   for(i=0;i<=1000000;i++)


/* Clear the EXTI line 3 pending bit */
    EXTI_ClearITPendingBit(EXTI_Line3);
}
}

独立看门狗试验

main.c文件

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"

/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void GPIO_Configuration(void);
void EXTI_Configuration(void);
void SysTick_Configuration(void);

/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif

/* System Clocks Configuration ---------------------------------------------*/
RCC_Configuration();

/* GPIO configuration ------------------------------------------------------*/
GPIO_Configuration();

/* Check if the system has resumed from IWDG reset -------------------------*/
if(RCC_GetFlagStatus(RCC_FLAG_IWDGRST) != RESET)
{ /* IWDGRST flag set */
/* Turn on led connected to PA.0 */
GPIO_WriteBit(GPIOA, GPIO_Pin_0, Bit_SET);

/* Clear reset flags */
    RCC_ClearFlag();
}
else
{ /* IWDGRST flag is not set */
    /* Turn off led connected to PA.0 */
    GPIO_WriteBit(GPIOA, GPIO_Pin_0, Bit_RESET);
}

/* Configure EXTI Line9 to generate an interrupt on falling edge -----------*/
EXTI_Configuration();

/* NVIC configuration ------------------------------------------------------*/
NVIC_Configuration();

/* Configure SysTick to generate an interrupt each 250ms -------------------*/
SysTick_Configuration();

/* IWDG timeout equal to 350ms (the timeout may varies due to LSI frequency
dispersion) -------------------------------------------------------------*/
/* Enable write access to IWDG_PR and IWDG_RLR registers */
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);

/* IWDG counter clock: 32KHz(LSI) / 32 = 1KHz */
IWDG_SetPrescaler(IWDG_Prescaler_32);

/* Set counter reload value to 349 */
IWDG_SetReload(349);

/* Reload IWDG counter */
IWDG_ReloadCounter();

/* Enable IWDG (the LSI oscillator will be enabled by hardware) */
IWDG_Enable();

while(1)
{
}
}

/* 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 */
RCC_PCLK1Config(RCC_HCLK_Div1);

    /* Flash 0 wait state */
    FLASH_SetLatency(FLASH_Latency_0);
    /* Enable Prefetch Buffer */
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

/* Select HSE as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSE);

    /* Wait till HSE is used as system clock source */
    while(RCC_GetSYSCLKSource() != 0x04)
    {
    }
}

/* Enable GPIOA and AFIO clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
                         RCC_APB2Periph_AFIO, ENABLE);
}

/* Configure PA.0 and PA.1 as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure PB9 as input floating (EXTI Line9) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}

/*******************************************************************************
* Function Name : EXTI_Configuration
* Description    : Configures EXTI Line9.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI_Configuration(void)
{
EXTI_InitTypeDef EXTI_InitStructure;

/* Connect EXTI Line9 to PA.3 */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);

/* Configure EXTI Line9 to generate an interrupt on falling edge */
EXTI_ClearITPendingBit(EXTI_Line9);
EXTI_InitStructure.EXTI_Line = EXTI_Line9;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}

/*******************************************************************************
* Function Name : NVIC_Configuration
* Description    : Configures NVIC and Vector Table base location.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

/* 2 bits for Preemption Priority and 2 bits for Sub Priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

/* Set SysTick interrupt vector Preemption Priority to 1 */
NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, 1, 0);
}

/* Infinite loop */
while (1)
{
}
}
#endif

/*******************************************************************************
* Function Name : SysTick_Configuration
* Description    : Configures SysTick to generate an interrupt each 250ms.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SysTick_Configuration(void)
{
/* Select HCLK/8 as SysTick clock source */
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK_Div8);

/* SysTick interrupt each 250ms with counter clock equal to 1MHz */
SysTick_SetReload(250000);

/* Enable the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Enable);

/* Enable the SysTick Interrupt */
SysTick_ITConfig(ENABLE);
}

stm32f10x_it.c文件

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_it.h"

}

/* As EXTI line9 pending bit is not cleared, the CPU will execute indefinitely
this ISR and when the IWDG counter reaches 00h the IWDG reset occurs */
}
}

/*******************************************************************************
* Function Name : TIM1_TRG_COM_IRQHandler
* Description    : This function handles TIM1 Trigger and commutation interrupts
*                  requests.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TIM1_TRG_COM_IRQHandler(void)
{
}

窗口看门狗

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"

/* Check if the system has resumed from WWDG reset -------------------------*/
if(RCC_GetFlagStatus(RCC_FLAG_WWDGRST) != RESET)
{ /* WWDGRST flag set */
/* Turn on led connected to PC.06 */
GPIO_WriteBit(GPIOA, GPIO_Pin_0, Bit_SET);

/* Clear reset flags */
    RCC_ClearFlag();
}
else
{ /* WWDGRST flag is not set */
    /* Turn off led connected to PC.06 */
    GPIO_WriteBit(GPIOA, GPIO_Pin_0, Bit_RESET);
}

/* Configure EXTI Line9 to generate an interrupt on falling edge -----------*/
EXTI_Configuration();

/* NVIC configuration --------------------------------------------------------*/
NVIC_Configuration();

/* WWDG configuration --------------------------------------------------------*/
/* Enable WWDG clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG, ENABLE);

/* WWDG clock counter = (PCLK1/4096)/8 = 244 Hz (~4 ms) */
WWDG_SetPrescaler(WWDG_Prescaler_8);

/* Set Window value to 0x41 */
WWDG_SetWindowValue(0x41);

/* Enable WWDG and set counter value to 0x7F, WWDG timeout = ~4 ms * 64 = 262 ms */
WWDG_Enable(0x7F);

/* Clear EWI flag */
WWDG_ClearFlag();

/* Enable EW interrupt */
WWDG_EnableIT();

while (1)
{
}
}

/* 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 */
RCC_PCLK1Config(RCC_HCLK_Div1);

    /* Flash 0 wait state */
    FLASH_SetLatency(FLASH_Latency_0);
    /* Enable Prefetch Buffer */
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

/* Select HSE as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSE);

    /* Wait till HSE is used as system clock source */
    while(RCC_GetSYSCLKSource() != 0x04)
    {
    }
}

/* Enable GPIOC, GPIOB and AFIO clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
                         RCC_APB2Periph_AFIO, ENABLE);
}

/* Configure PC.06 and PC.07 as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure PB9 as input floating (EXTI Line9) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}

/* Connect EXTI Line9 to PB.9 */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);

/* 2 bits for Preemption Priority and 2 bits for Sub Priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

NVIC_InitStructure.NVIC_IRQChannel = WWDG_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_Init(&NVIC_InitStructure);
}

/* Infinite loop */
while (1)
{
}
}
#endif

/*******************************************************************************
* Function Name : WWDG_IRQHandler
* Description    : This function handles WWDG interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void WWDG_IRQHandler(void)
{
/* Update WWDG counter */
WWDG_SetCounter(0x7F);

/* Clear EWI flag */
WWDG_ClearFlag();

/* Toggle led connected to PC.07 */
GPIO_WriteBit(GPIOA, GPIO_Pin_1, (BitAction)(1-GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_1)));
}

void EXTI9_5_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line9) != RESET)
{
/* Turn off led connected to PC.07 */
GPIO_WriteBit(GPIOA, GPIO_Pin_1, Bit_RESET);

/* As EXTI line9 pending bit is not cleared, the CPU will execute indefinitely
this ISR and when the WWDG counter falls to 3Fh the WWDG reset occurs */
}
}

基于大虾网的DX32修改例程代码如下：

LED的宏定义：

#ifndef HAL_H
#define HAL_H

//硬件初始化
extern void ChipHalInit(void);
extern void ChipOutHalInit(void);

//
extern u16 TestAdc(void);

//输出宏定义
//清零
#define LED1_OFF GPIO_ResetBits(GPIOA, GPIO_Pin_8)
//置一
#define LED1_ON GPIO_SetBits(GPIOA, GPIO_Pin_8)

#define LED2_OFF GPIO_ResetBits(GPIOA, GPIO_Pin_7)
#define LED2_ON GPIO_SetBits(GPIOA, GPIO_Pin_7)

#define LED3_OFF GPIO_ResetBits(GPIOC, GPIO_Pin_7)
#define LED3_ON GPIO_SetBits(GPIOC, GPIO_Pin_7)

#define LED4_OFF GPIO_ResetBits(GPIOC, GPIO_Pin_5)
#define LED4_ON GPIO_SetBits(GPIOC, GPIO_Pin_5)

#define LED5_OFF GPIO_ResetBits(GPIOB, GPIO_Pin_9)
#define LED5_ON GPIO_SetBits(GPIOB, GPIO_Pin_9)

#define LED6_OFF GPIO_ResetBits(GPIOB, GPIO_Pin_8)
#define LED6_ON GPIO_SetBits(GPIOB, GPIO_Pin_8)

#define LED7_OFF GPIO_ResetBits(GPIOB, GPIO_Pin_5)
#define LED7_ON GPIO_SetBits(GPIOB, GPIO_Pin_5)

#define LED8_OFF GPIO_ResetBits(GPIOB, GPIO_Pin_0)
#define LED8_ON GPIO_SetBits(GPIOB, GPIO_Pin_0)
#endif

AD转换驱动：

/**************************************************************
ADC PB1_ADC9

***************************************************************/

#include "STM32Lib\\stm32f10x.h"

void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

/* PB1*/ //设置成模拟量输入
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOB, &GPIO_InitStructure);

/* ADC1 */
ADC_InitStructure.ADC_Mode               = ADC_Mode_Independent;  //ADC1和ADC2工作独立模式
ADC_InitStructure.ADC_ScanConvMode       = ENABLE;      //连续多通道模式
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;      //连续转换,若设为DISALE则只转换一次
ADC_InitStructure.ADC_ExternalTrigConv   = ADC_ExternalTrigConv_None; //转换不受外界决定
ADC_InitStructure.ADC_DataAlign          = ADC_DataAlign_Right;   //右对齐
ADC_InitStructure.ADC_NbrOfChannel       = 1;       //扫描通道数
ADC_Init(ADC1, &ADC_InitStructure);

/* ADC1 Regular Channel1 Configuration，PB1属于通道9                            */
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 1, ADC_SampleTime_55Cycles5); //通道X,采用时间为55.5周期,1代表规则通道第1个

ADC_Cmd   (ADC1, ENABLE);             /* Enable ADC1                        */
ADC_SoftwareStartConvCmd(ADC1,ENABLE);/* Start ADC1 Software Conversion     */ //使能转换开始
}

u16 TestAdc(void)
{
u16 adc;
if(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC)==SET)
{
adc=ADC_GetConversionValue(ADC1);
}
return adc;
}