#define GPIO_KEY_BUTTON GPIOD
#define RCC_APB2Periph_GPIO_KEY_BUTTON RCC_APB2Periph_GPIOD
#define GPIO_PIN_KEY_BUTTON GPIO_Pin_3
#define EXTI_LINE_KEY_BUTTON EXTI_Line3
#define GPIO_PORT_SOURCE_KEY_BUTTON GPIO_PortSourceGPIOD
#define GPIO_PIN_SOURCE_KEY_BUTTON GPIO_PinSource3
RCC_Configuration();
NVIC_Configuration();
GPIO_Configuration();
GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KEY_BUTTON, GPIO_PIN_SOURCE_KEY_BUTTON);
EXTI_InitStructure.EXTI_Line = EXTI_LINE_KEY_BUTTON;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
//EXTI_GenerateSWInterrupt(EXTI_LINE_KEY_BUTTON);
while(1)
{
}
如果不屏蔽EXTI_GenerateSWInterrupt，可以进中断
当屏蔽后相应管脚拉低无法进去了，是不是哪还没配置对？ |
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