stm32入门系列程序-number007cool-ChinaUnix博客

天行健，君子以自强不息domyself.blog.chinaunix.net

首页　| 　博文目录　| 　关于我

number007cool

博客访问： 2003606
博文数量： 356
博客积分： 8284
博客等级：中将
技术积分： 4580
用户组：普通用户
注册时间： 2009-05-15 20:25

个人简介

天行健，君子以自强不息

文章分类

全部博文（356）

android（1）
树莓派（12）
LPC2368（0）
以太网（5）
LPC1766（10）
GPS（2）
VC学习笔记（20）
VB学习笔记（6）
STM32学习笔记（26）
NIOS II（6）
uc/os-II（7）
VHDL学习笔记（0）
电子作品（22）
AVR MCU（19）

ATMEGA16（3）

ATMEGA128（14）
altium designer（5）
其他（4）
Qt学习笔记（8）
电脑技术应用（21）
C（7）
Verilog学习笔记（34）
msp430单片机（5）
arm学习（44）

ubuntu学习笔记（20）

linux学习（14）
51单片机（69）

电子电路原理图（1）
未分配的博文（23）

文章存档

2018年（1）

2016年（4）

2015年（13）

2014年（14）

2013年（2）

2012年（25）

2011年（43）

2010年（65）

2009年（189）

我的朋友

相关博文

stm32入门系列程序

分类： C/C++

2010-09-06 21:16:05

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;
}

阅读(4458) | 评论(0) | 转发(0) |

上一篇：NIOS II学习总结

下一篇：那一

给主人留下些什么吧！~~

感谢所有关心和支持过ChinaUnix的朋友们

16024965号-6