STM32F407 EXTI中断，

blackberrytcl

//按键PD6 按下产生中断，让PD15点亮，并打印。
NVIC_InitTypeDef NVIC_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

USART_Configuration();//USART2 串口 更改晶振频率 由 25M HZ 变为 8M HZ
USART_NVIC_Config(); //在 system_stm32f4xx.c 中 #define LL_M  8   在 stm32f4xx.h 中 #define HSE_VALUE    ((uint32_t)8000000)

/*开启GPIOD的外设时钟*/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE); //使能或者失能AHB外设时钟 , 此处是让D口外设时钟使
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);//注意要打开SYSCFG时钟    
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; /*选择要控制的GPIOD引脚*/
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;    /*设置引脚模式为通用推挽输出*/
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  /*设置引脚速率为50MHz */   
GPIO_Init(GPIOD, &GPIO_InitStructure); /*调用库函数，初始化GPIO*/
  GPIO_ResetBits(GPIOD, GPIO_Pin_15);
 
/* GPIOD eriph clock enable */
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
 
//GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource3);   
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOD, EXTI_PinSource6);    
EXTI_InitStructure.EXTI_Line = EXTI_Line6;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);

  /* Enable the USARTx Interrupt */
   NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
   NVIC_Init(&NVIC_InitStructure);

while(1){};

大侠们帮我看看。我这个EXTI中断配置有错误不

我的程序肿么进不了中断处理函数中呢 ？
以下是我的中断处理函数。
void EXTI9_5_IRQnHandler(void){
 printf("\r\n567\r\n");
 if(EXTI_GetITStatus(EXTI_Line6) != RESET) {
  GPIO_Config(GPIOD,GPIO_Pin_15,GPIO_Mode_OUT,GPIO_OType_PP,GPIO_PuPd_NOPULL);
  Delay(0x3FFFFF);
  LedOnOff(GPIOD,GPIO_Pin_15,1);
  Delay(0x3FFFFF);
  EXTI_ClearITPendingBit(EXTI_Line13);   
  
 }
}

Admin

[mw_shl_code=c,true]#include "exti.h" #include "delay.h" #include "led.h" #include "key.h" #include "beep.h" ////////////////////////////////////////////////////////////////////////////////// //本程序只供学习使用，未经作者许可，不得用于其它任何用途 //ALIENTEK STM32F407开发板 //外部中断 驱动代码 //正点原子@ALIENTEK //技术论坛:www.openedv.com //创建日期:2014/5/4 //版本：V1.0 //版权所有，盗版必究。 //Copyright(C) 广州市星翼电子科技有限公司 2014-2024 //All rights reserved ////////////////////////////////////////////////////////////////////////////////// //外部中断0服务程序 void EXTI0_IRQHandler(void) { delay_ms(10); //消抖 if(WK_UP==1) { BEEP=!BEEP; //蜂鸣器翻转 } EXTI_ClearITPendingBit(EXTI_Line0); //清除LINE0上的中断标志位 } //外部中断2服务程序 void EXTI2_IRQHandler(void) { delay_ms(10); //消抖 if(KEY2==0) { LED0=!LED0; LED1=!LED1; } EXTI_ClearITPendingBit(EXTI_Line2);//清除LINE2上的中断标志位 } //外部中断3服务程序 void EXTI3_IRQHandler(void) { delay_ms(10); //消抖 if(KEY1==0) { LED1=!LED1; } EXTI_ClearITPendingBit(EXTI_Line3); //清除LINE3上的中断标志位 } //外部中断4服务程序 void EXTI4_IRQHandler(void) { delay_ms(10); //消抖 if(KEY0==0) { LED0=!LED0; } EXTI_ClearITPendingBit(EXTI_Line4);//清除LINE4上的中断标志位 } //外部中断初始化程序 //初始化PE2~4,PA0为中断输入. void EXTIX_Init(void) { NVIC_InitTypeDef NVIC_InitStructure; EXTI_InitTypeDef EXTI_InitStructure; KEY_Init(); //按键对应的IO口初始化 RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);//使能SYSCFG时钟 SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOE, EXTI_PinSource2);//PE2 连接到中断线2 SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOE, EXTI_PinSource3);//PE3 连接到中断线3 SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOE, EXTI_PinSource4);//PE4 连接到中断线4 SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource0);//PA0 连接到中断线0 /* 配置EXTI_Line0 */ EXTI_InitStructure.EXTI_Line = EXTI_Line0;//LINE0 EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;//中断事件 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; //上升沿触发 EXTI_InitStructure.EXTI_LineCmd = ENABLE;//使能LINE0 EXTI_Init(&EXTI_InitStructure);//配置 /* 配置EXTI_Line2,3,4 */ EXTI_InitStructure.EXTI_Line = EXTI_Line2 | EXTI_Line3 | EXTI_Line4; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;//中断事件 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿触发 EXTI_InitStructure.EXTI_LineCmd = ENABLE;//中断线使能 EXTI_Init(&EXTI_InitStructure);//配置 NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;//外部中断0 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x00;//抢占优先级0 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;//子优先级2 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//使能外部中断通道 NVIC_Init(&NVIC_InitStructure);//配置 NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn;//外部中断2 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x03;//抢占优先级3 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;//子优先级2 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//使能外部中断通道 NVIC_Init(&NVIC_InitStructure);//配置 NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn;//外部中断3 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x02;//抢占优先级2 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;//子优先级2 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//使能外部中断通道 NVIC_Init(&NVIC_InitStructure);//配置 NVIC_InitStructure.NVIC_IRQChannel = EXTI4_IRQn;//外部中断4 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x01;//抢占优先级1 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;//子优先级2 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//使能外部中断通道 NVIC_Init(&NVIC_InitStructure);//配置 } [/mw_shl_code]

hanyonstyle

看上去是没有错的啊。

hanyonstyle

看上去是没有错的啊。楼主有没有解决了，分享一下

探索者00544

* GPIOD eriph clock enable */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOC, &GPIO_InitStructure);



到底是PD 口  还是PC 口