STM32H743 IO口中断配置
我需要配置PC5的中断及使能,在STM32F103中的配置如下,在h743中需要如何配置呢?只找到HAL_NVIC_SetPriority();HAL_NVIC_EnableIRQ();这两函数
STM32F103中的配置如下:
// 配置外部中断
void EXTI_Config(void)
{
EXTI_InitTypeDefEXTI_InitStructure ;
GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource5);//管脚选择
EXTI_ClearITPendingBit(EXTI_Line5); //清除中断标志
EXTI_InitStructure.EXTI_Line = EXTI_Line5;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿触发采样
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
void NVIC_Config(void)
{
NVIC_InitTypeDefNVIC_InitStructure ;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel; //5~9通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;//占先级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //响应级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //启动
NVIC_Init(&NVIC_InitStructure); //初始化
}
供参考
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