同时配置了外部中断0和13，中断0能正常运行13总是进不去中断

只看该作者 · 2014-9-13 19:50

我同时配置了外部中断0和13，中断13一直进不去，进入调试模式发现EXTI_PR的PR13一直为1，我应该怎么做才能正常运行中断程序，这是我的代码：
/*********************main.c******************************/
#include "stm32f10x.h"
#include "Led.h"
#include "sk_exti.h"

int main(void)
{
Led_Config();

LED1(ON);

EXTI_Config();

while(1)
{

}
}
/*********************sk_exti.c***************************************/
#include "sk_exti.h"

void EXTI_GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC | \
                        RCC_APB2Periph_AFIO, ENABLE);                   //´ò¿ªGPIOA,GPIOC,AFIOÊ±ÖÓ

/* Éè¶¨GPIOA_Pin0ºÍGPIOC_Pin_13ÎªÉÏÀÊäÈëÄ£Ê½ */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOA, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOC, &GPIO_InitStructure);

}

static void NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);                //ÖÐ¶Ï·Ö×é1

NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;                //ÅäÖÃÍâ²¿ÖÐ¶Ï1µÄÖÐ¶ÏÓÅÏÈ¼¶
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;                //ÅäÖÃÍâ²¿ÖÐ¶Ï13µÄÖÐ¶ÏÓÅÏÈ¼¶
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

}
void EXTI_Config(void)
{
EXTI_InitTypeDef EXTI_InitStructure;

GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0);    //½«GPIOA_Pin_0ÓëÍâ²¿ÖÐ¶Ï1Í¨µÀÁ¬½Ó
GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource13);    //½«GPIOC_Pin_13ÓëÍâ²¿ÖÐ¶Ï13Í¨µÀÁ¬½Ó

NVIC_Config();

EXTI_InitStructure.EXTI_Line = EXTI_Line0 | EXTI_Line13;       //¿ªÍâ²¿ÖÐ¶Ï0ºÍ13µÄÖÐ¶Ï
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;             //ÉèÖÃÎªÖÐ¶ÏÄ£Ê½
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;          //ÏÂ½µÑØ´¥·¢
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);

}

/**************************中断程序***************************/
void EXTI0_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line0) != RESET)
{
GPIO_WriteBit(GPIOC, GPIO_Pin_4, (BitAction)(1-GPIO_ReadOutputDataBit(GPIOC, GPIO_Pin_4)));
EXTI_ClearITPendingBit(EXTI_Line0);
}
}

void EXTI15_10_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line13) != RESET)
{
LED3(ON);
EXTI_ClearITPendingBit(EXTI_Line13);
}
}

/****************Led.c***************/
#include "Led.h"

void Led_Config(void)
{
/*ÅäÖÃGPIOB_Pin_0, GPIOC_Pin_3,4  */
GPIO_InitTypeDef GPIO_InitStrucute;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC, ENABLE);

GPIO_InitStrucute.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStrucute.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStrucute.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStrucute);

GPIO_InitStrucute.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4;
// GPIO_InitStrucute.GPIO_Mode = GPIO_Mode_Out_PP;
// GPIO_InitStrucute.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStrucute);

GPIO_SetBits(GPIOB, GPIO_Pin_0);                               //¹Ø±ÕLED1
GPIO_SetBits(GPIOC, GPIO_Pin_3 | GPIO_Pin_4);                   //¹Ø±ÕLED2, LED3
}