主要程序节选如下：
主函数：
{
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
/* Configure EXTI Line9 to generate an interrupt on falling edge */
EXTI_InitStructure.EXTI_Line = EXTI_Line9;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Generate software interrupt: simulate a falling edge applied on EXTI line 9 */
EXTI_GenerateSWInterrupt(EXTI_Line9);
while (1)}
中断函数：
{void EXTI9_5_IRQHandler(void)
if(EXTI_GetITStatus(EXTI_Line9) != RESET)
{
/* Toggle PC6 pin */
GPIO_WriteBit(GPIOC, GPIO_Pin_6, (BitAction)((1-GPIO_ReadOutputDataBit(GPIOC, GPIO_Pin_6))));
/* Clear the EXTI line 9 pending bit */
EXTI_ClearITPendingBit(EXTI_Line9);
}
}
还是贴出来 软件调试时使PB_9口产生下降沿触发 却进不了中断
自己还在埋头苦干中 谢谢版主的帮助
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