本帖最后由 18349356386 于 2019-3-16 12:21 编辑

void TIM1_Init()
{
TIM1_DeInit();
TIM1_ETRClockMode2Config(TIM1_EXTTRGPSC_OFF,
TIM1_EXTTRGPOLARITY_NONINVERTED, 0x00);
TIM1_TimeBaseInit(1,TIM1_COUNTERMODE_UP,9999,0);
TIM1_SetCounter(0x00);
TIM1_ITConfig(TIM1_IT_UPDATE, ENABLE);
TIM1_Cmd(ENABLE);
}