stm32g030c8t6 adc 读取值不正确

只看该作者 · 2022-9-7 10:00

用了 ADC1_IN10  ADC1_IN11  ADC1_IN15 只有10 和11 的adc值正确 IN15的值不正确，

模式选择的是 sequencer set to not fully configurable 求大佬看看

void MX_ADC1_Init(void)
{
ADC_ChannelConfTypeDef sConfig = {0};

/** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc1.Init.LowPowerAutoWait = DISABLE;
hadc1.Init.LowPowerAutoPowerOff = DISABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.NbrOfConversion =3;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;
hadc1.Init.SamplingTimeCommon1 = ADC_SAMPLETIME_12CYCLES_5;
hadc1.Init.OversamplingMode = DISABLE;
hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;

sConfig.Channel = ADC_CHANNEL_10;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
      Error_Handler();
}

sConfig.Channel = ADC_CHANNEL_11;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
      Error_Handler();
}

sConfig.Channel = ADC_CHANNEL_15;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
      Error_Handler();
}

}