STM32F0（4）定时器中断

void Time3_Init(void) // 1ms 中断定时器初始化

{

RCC->APB1ENR |= RCC_APB1ENR_TIM3EN; // 打开对应外设的时钟

NVIC->ISER[0] |= (1 << TIM3_IRQn);

NVIC->IP[TIM3_IRQn / 4] |= (0x000000c0 << (8 * (TIM3_IRQn % 4)));

TIM3->DIER |= (1 << 0);

TIM3->PSC = 35;

TIM3->CNT = 1000;

TIM3->ARR = 1000;

TIM3->CR1 |= (1 << 0);

}

void TIM3_IRQHandler(void) // 中断服务程序

{

TIM3->SR &= ~(1 << 0); // 手动清除标志位

// ...

}