我使用tim1测量的结果是0x36个时钟周期
测试代码如下:
void EXTI0_IRQHandler(void)
volatile uint32_t j=0;
void EXTI0_IRQHandler(void)
{
//TIM_Cmd(TIM1,DISABLE);
TIM1->CR1 &= (uint16_t)(~((uint16_t)TIM_CR1_CEN));
j++;
TIM_SetCounter(TIM1,0x0);
//TIM_Cmd(TIM1,ENABLE);
TIM1->CR1 |= TIM_CR1_CEN;
}
这样测的结果是0x27
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