各位仁兄快乐救助我这个小菜鸟

馨罗 · 发表于 2014-8-9 22:47:19

进不了中断不知为啥？

#include "beep.h"
#include "key.h"
//#include "sys.h"
#include "delay.h"
#include "led.h"
#include "usart.h"
#include "exti.h"
void EXTIX_Init()
{
   EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
KEY_Init();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource2);
EXTI_InitStructure.EXTI_Line=EXTI_Line2;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_StructInit(&EXTI_InitStructure);
//
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource3);
EXTI_InitStructure.EXTI_Line=EXTI_Line3;
EXTI_StructInit(&EXTI_InitStructure);
//
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource4);
EXTI_InitStructure.EXTI_Line=EXTI_Line4;
EXTI_StructInit(&EXTI_InitStructure);
//
GPIO_EXTILineConfig(GPIO_PortSourceGPIOC,GPIO_PinSource0);
EXTI_InitStructure.EXTI_Line=EXTI_Line0;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_StructInit(&EXTI_InitStructure);
//
NVIC_InitStructure.NVIC_IRQChannel=EXTI0_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x02;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
//
//
NVIC_InitStructure.NVIC_IRQChannel=EXTI1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x02;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x01;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
//
NVIC_InitStructure.NVIC_IRQChannel=EXTI2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x02;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x02;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel=EXTI3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x02;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x03;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void EXTI0_IRQHandler(void)
{
delay_ms(10);
if(KEY3==1)
{
    BEEP=!BEEP;
}
EXTI_ClearITPendingBit(EXTI_Line0);
}
void EXTI1_IRQHandler(void)
{
delay_ms(10);
if(KEY0==0)
{
    LED0=!LED0;
}
EXTI_ClearITPendingBit(EXTI_Line4);
}
void EXTI2_IRQHandler(void)
{
delay_ms(10);
if(KEY1==0)
{
    LED0=!LED0;
  LED1=!LED1;
}
EXTI_ClearITPendingBit(EXTI_Line3);
}
void EXTI3_IRQHandler(void)
{
delay_ms(10);
if(KEY2==0)
{
   LED1=!LED1;
}
EXTI_ClearITPendingBit(EXTI_Line2);
}