定时器跑一阵后就偏差了

1万 · 2019-4-20 14:58

跑了十几分钟后就不准了

1万 · 2019-4-20 15:03

楼主详细说说怎么回事啊，这么说太笼统了

1万 · 2019-4-20 15:06

TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

            RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);

            TIM_TimeBaseStructure.TIM_Period = 10000;
            TIM_TimeBaseStructure.TIM_Prescaler = 71;
            TIM_TimeBaseStructure.TIM_ClockDivision = 0;
            TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
            TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

            TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

            TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);
            TIM_Cmd(TIM2, ENABLE);