void Time3_Init(void) // 1ms 中斷定時(shí)器初始化

{

RCC->APB1ENR |= RCC_APB1ENR_TIM3EN; // 打開對(duì)應(yīng)外設(shè)的時(shí)鐘

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) // 中斷服務(wù)程序

{

TIM3->SR &= ~(1 << 0); // 手動(dòng)清除標(biāo)志位

// ...

}