Adc初始化后用HAL_ADCEx_Calibration_Start函数进行校准，一直返回失败是为什么？

使用的板子为NUCLEO-U575ZI-Q。
下面是初始化的代，请各位大佬解惑，困惑很久。

ADC_HandleTypeDef hadc1;

void HAL_ADC_MspInit(ADC_HandleTypeDef *hadc)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
    if (hadc->Instance == ADC1)
    {
        PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADCDAC;
        PeriphClkInit.AdcDacClockSelection = RCC_ADCDACCLKSOURCE_HSI;
        if (HAL_RCCEx_PeriphCLKConfig( PeriphClkInit) != HAL_OK)
        {
            // Error_Handler();
        }

        /* Peripheral clock enable */
        __HAL_RCC_ADC12_CLK_ENABLE();

        __HAL_RCC_GPIOA_CLK_ENABLE();
        /**ADC1 GPIO Configuration
        PA4     ------> ADC1_IN9
        */
        GPIO_InitStruct.Pin = GPIO_PIN_4;
        GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
        GPIO_InitStruct.Pull = GPIO_NOPULL;
        HAL_GPIO_Init(GPIOA,  GPIO_InitStruct);

    }
}

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

    hadc1.Instance = ADC1;
    hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV8;
    hadc1.Init.Resolution = ADC_RESOLUTION_12B;
    hadc1.Init.GainCompensation = 0;
    hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
    hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
    hadc1.Init.LowPowerAutoWait = DISABLE;
    hadc1.Init.ContinuousConvMode = DISABLE;
    hadc1.Init.NbrOfConversion = 1;
    hadc1.Init.DiscontinuousConvMode = DISABLE;
    hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
    hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
    hadc1.Init.DMAContinuousRequests = DISABLE;
    hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
    hadc1.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
    hadc1.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
    hadc1.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
    hadc1.Init.OversamplingMode = DISABLE;
    if (HAL_ADC_Init( hadc1) != HAL_OK)
    {
        Error_Handler();
    }

    sConfig.Channel = ADC_CHANNEL_9;
    sConfig.Rank = ADC_REGULAR_RANK_1;
    sConfig.SamplingTime = ADC_SAMPLETIME_391CYCLES_5;
    sConfig.SingleDiff = ADC_SINGLE_ENDED;
    sConfig.OffsetNumber = ADC_OFFSET_NONE;
    sConfig.Offset = 0;
    if (HAL_ADC_ConfigChannel( hadc1,  sConfig) != HAL_OK)
    {
        Error_Handler();
    }

    if (HAL_ADCEx_Calibration_Start( hadc1, ADC_CALIB_OFFSET, ADC_SINGLE_ENDED) != HAL_OK)
    {
        Error_Handler();
    }
}