求助！！！关于中断

藏锋 · 发表于 2012-3-27 21:30:03

我的主函数

#include "stm32f10x.h"

void Delay_ms(uint32_t nms)
{
uint32_t i;
for(;nms>0;--nms)
for(i=12000;i>0;--i) ;
}

void RCC_Init(void) //GPIOA, GPIOD时钟，GPIO复用功能时钟初始化
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOD | RCC_APB2Periph_AFIO,ENABLE);
}

void Led_Init(void) //LED相关的GPIO初始化
{
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_DeInit(GPIOA);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
GPIO_Init(GPIOA,&GPIO_InitStruct); //PA_8引脚

GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
GPIO_Init(GPIOD,&GPIO_InitStruct); //PD_2引脚初始化
}

void Key_Init(void) //按键初始化
{
GPIO_InitTypeDef GPIO_InitStruct;

GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable , ENABLE); //SWJ和JTAG失能

GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13 ;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU; //13上拉
GPIO_Init(GPIOA,&GPIO_InitStruct);

GPIO_InitStruct.GPIO_Pin = GPIO_Pin_15;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU; //15上拉
GPIO_Init(GPIOA,&GPIO_InitStruct);

GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPD; //0下拉
GPIO_Init(GPIOA,&GPIO_InitStruct);
}

void NVIC_Configuration(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); //中断组0

NVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0); //中断向量FLASH
}

void EXTI_Configuration(void)
{
/***************************WK_UP(PA0)线路中断配置****************************/
EXTI_InitTypeDef EXTI_InitStruct; //EXTI初始化结构体
NVIC_InitTypeDef NVIC_InitStruct; //NVIC初始化结构体

GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource0);//PA0
EXTI_InitStruct.EXTI_Line = EXTI_Line0;    //EXTI外部中断线路0
EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt; //中断模式
EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising;   //上升沿触发
EXTI_InitStruct.EXTI_LineCmd = ENABLE;      //中断线路使能
EXTI_Init(&EXTI_InitStruct);        //初始化EXTI结构体

NVIC_InitStruct.NVIC_IRQChannel = EXTI0_IRQn;   //中断向量线路0
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0; //抢占优先级0
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0;   //从优先级0
NVIC_Init(&NVIC_InitStruct);        //初始化NVIC结构体

/********************KEY1,KEY0(PA13,PA15)中断线路配置***********************/
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource13);//PA13
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource15);//PA15
EXTI_InitStruct.EXTI_Line = EXTI_Line13 | EXTI_Line15;
EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStruct.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStruct);

NVIC_InitStruct.NVIC_IRQChannel = EXTI15_10_IRQn;
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 1;
NVIC_Init(&NVIC_InitStruct);
}

int main(void)
{

/* Setup STM32 system (clock, PLL and Flash configuration) */
SystemInit();
RCC_Init();
Led_Init();
Key_Init();
NVIC_Configuration();
EXTI_Configuration();
while (1)
{
}
}

#ifdef USE_FULL_ASSERT

/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval : None
*/
void assert_failed(uint8_t* file, uint32_t 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

下面是我的中断处理函数
void EXTI0_IRQHandler(void)
{
uint32_t i;
for(i=0;i<100;++i)
__nop();
if(EXTI_GetITStatus(EXTI_Line0) == SET) //判断中断标志
{
  EXTI_ClearITPendingBit(EXTI_Line0); //清楚中断标志
  GPIO_SetBits(GPIOA,GPIO_Pin_8); //红灯亮
  GPIO_SetBits(GPIOD,GPIO_Pin_2); //绿灯亮
}
}

void EXTI15_10_IRQHandler(void)
{
uint32_t i;
for(i=0;i<100;++i)
  __nop();
if(EXTI_GetITStatus(EXTI_Line13) == SET)
{
  EXTI_ClearITPendingBit(EXTI_Line13);
  GPIO_ResetBits(GPIOA,GPIO_Pin_8); //红灯亮
}
else if(EXTI_GetITStatus(EXTI_Line15) == SET)
{
  EXTI_ClearITPendingBit(EXTI_Line15);
  GPIO_ResetBits(GPIOA,GPIO_Pin_8); //红灯亮
}

}

搞了一天了。
一直进不了中断，那位哥哥帮忙看看问题出在哪里