• 2022-06-08
    STM32采集电压需要启动AD,下面哪行指令是启动AD的
    A: HAL_Delay(1000);
    B: HAL_ADC_Start(&hadc1);
    C: HAL_ADC_PollForConversion(&hadc1,0xffff);
    D: temp=HAL_ADC_GetValue(&hadc1);