STM32G070RBT ADC关闭后无法降低ADC开启产生的功耗

HaiyangYu 提问时间：2020-8-8 14:03 /

      各位大神：
   STM32G070RBT 进入STOP1低功耗模式时，电流为4uA左右，但是打开ADC，功耗变为18uA，调用HAL_ADC_DeInit(&hadc1)来关闭ADC，功耗还是18uA，无法降低ADC产生的功耗，求解；
以下为STM32CubeMx产生的ADC代码。
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

uint16_t adc_value = 0;
  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_ADC1_Init();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  HAL_ADC_DeInit(&hadc1);

  while (1)
  {
/* USER CODE END WHILE */
   HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON,PWR_STOPENTRY_WFI);
/* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

static void MX_ADC1_Init(void)
{
   /* USER CODE BEGIN ADC1_Init 0 */

   /* USER CODE END ADC1_Init 0 */

   ADC_ChannelConfTypeDef sConfig = {0};

   /* USER CODE BEGIN ADC1_Init 1 */

   /* USER CODE END ADC1_Init 1 */
   /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
   */
   hadc1.Instance = ADC1;
   hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV8;
   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 = 1;
   hadc1.Init.DiscontinuousConvMode = DISABLE;
   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_7CYCLES_5;
   hadc1.Init.SamplingTimeCommon2 = ADC_SAMPLETIME_7CYCLES_5;
   hadc1.Init.OversamplingMode = DISABLE;
   hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
   if (HAL_ADC_Init(&hadc1) != HAL_OK)
   {
      Error_Handler();
   }
   /** Configure Regular Channel
   */
   sConfig.Channel = ADC_CHANNEL_TEMPSENSOR;
   sConfig.Rank = ADC_REGULAR_RANK_1;
   sConfig.SamplingTime = ADC_SAMPLINGTIME_COMMON_1;
   if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
   {
      Error_Handler();
   }
   /* USER CODE BEGIN ADC1_Init 2 */

   /* USER CODE END ADC1_Init 2 */

}