STM32 中断配置 不知道怎么配置 想串口3中断有线于串口1 其他都平等
请问一下的配置对吗？串口3有时候怎么老进不了中断呢？
这个是V3.0的库，请大家帮忙 谢谢
//中断配置
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
//中断组
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_SetPriority(SysTick_IRQn, 0);
//串口1中断
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//串口3中断
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//定时器2中断
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
} |
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