将PA.9配置为外部中断,新人上手,求大神指导一下下面的配置对不对 void EXTI_Configuration(void) { EXTI_InitTypeDef EXTI_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOA,&GPIO_InitStructure); SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA,EXTI_PinSource9); 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); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; NVIC_InitStructure.NVIC_IRQChannel = ENABLE; NVIC_Init(&NVIC_InitStructure); } 中断入口函数是void EXTI9_5_IRQHandler(void)吗? 急...........在线等........... |
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