外部中断一直有问题

赵大鳖 · 发表于 2016-10-17 04:33:46

本帖最后由赵大鳖于 2016-10-17 04:36 编辑

写了外部中断函数，调试时一直进入 void EXTI15_10_IRQHandler(void) 这个中断，重复进入。但是始终不进入  void EXTI1_IRQHandler(void) ，把    void EXTI15_10_IRQHandler(void)  这个中断屏蔽了还是进不去，停在启动文件的324行处 B 这个位置。

求解

void Exti_Init()
{
      EXTI_InitTypeDef EXTI_InitStructure;
      NVIC_InitTypeDef NVIC_InitStructure;

      KEY_Init();

      RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, ENABLE);

      GPIO_EXTILineConfig(GPIO_PortSourceGPIOC,GPIO_PinSource13);

      EXTI_InitStructure.EXTI_Line = EXTI_Line13;
      EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
      EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
      EXTI_InitStructure.EXTI_LineCmd = ENABLE;
      EXTI_Init(&EXTI_InitStructure);




      GPIO_EXTILineConfig(GPIO_PortSourceGPIOE,GPIO_PinSource1);

      EXTI_InitStructure.EXTI_Line = EXTI_Line1;
      EXTI_Init(&EXTI_InitStructure);


      NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_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);

}

void EXTI15_10_IRQHandler(void)
{
      delay_ms(10);
      if(KEY1 == 1)
      {
            LED1 = !LED1;
                                             printf("OK  1 \r\n");

      }
      EXTI_ClearITPendingBit(EXTI_Line13);
}

void EXTI1_IRQHandler(void)
{
      delay_ms(10);
      if(KEY2 == 1)
      {
            LED0 = !LED0;
            printf("OK  0  \r\n");
      }
      EXTI_ClearITPendingBit(EXTI_Line1);
}

而且，调试时，在此处会运行两下，LED1闪一下。
截图00.png