103VET6,使用STMCUBE配置ADC，不管给采样引脚多少V ，只返回AD值0和4095

Black · 发表于 2020-4-8 19:00:11

本帖最后由 Black 于 2020-4-8 19:04 编辑

int main(void)
{

  HAL_Init();

  SystemClock_Config();

  MX_GPIO_Init();
  MX_ADC1_Init();
  MX_ADC2_Init();
  MX_USART1_UART_Init();
  while (1)
  {

HAL_Delay(1000);
   send_ADV(Get_Adc2());
   HAL_Delay(500);
   send_ADV(Get_Adc1());
}

/* ADC1 init function */
void MX_ADC1_Init(void)
{
  ADC_ChannelConfTypeDef sConfig = {0};

  /** Common config
  */
  hadc1.Instance = ADC1;
  hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 1;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
Error_Handler();
  }
  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_11;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
Error_Handler();
  }
  HAL_ADCEx_Calibration_Start(&hadc1);
}
/* ADC2 init function */
void MX_ADC2_Init(void)
{
  ADC_ChannelConfTypeDef sConfig = {0};

  /** Common config
  */
  hadc2.Instance = ADC2;
  hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc2.Init.ContinuousConvMode = DISABLE;
  hadc2.Init.DiscontinuousConvMode = DISABLE;
  hadc2.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc2.Init.NbrOfConversion = 1;
  if (HAL_ADC_Init(&hadc2) != HAL_OK)
  {
Error_Handler();
  }
  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_12;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
  if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
  {
Error_Handler();
  }
  HAL_ADCEx_Calibration_Start(&hadc2);
}

oid HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(adcHandle->Instance==ADC1)
  {
  /* USER CODE BEGIN ADC1_MspInit 0 */

  /* USER CODE END ADC1_MspInit 0 */
/* ADC1 clock enable */
__HAL_RCC_ADC1_CLK_ENABLE();

__HAL_RCC_GPIOC_CLK_ENABLE();
/**ADC1 GPIO Configuration
PC1    ------> ADC1_IN11
*/
GPIO_InitStruct.Pin = GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

  /* USER CODE BEGIN ADC1_MspInit 1 */

  /* USER CODE END ADC1_MspInit 1 */
  }
  else if(adcHandle->Instance==ADC2)
  {
  /* USER CODE BEGIN ADC2_MspInit 0 */

  /* USER CODE END ADC2_MspInit 0 */
/* ADC2 clock enable */
__HAL_RCC_ADC2_CLK_ENABLE();

__HAL_RCC_GPIOC_CLK_ENABLE();
/**ADC2 GPIO Configuration
PC2    ------> ADC2_IN12
*/
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

  /* USER CODE BEGIN ADC2_MspInit 1 */

  /* USER CODE END ADC2_MspInit 1 */
  }
}

/* USER CODE BEGIN 1 */
uint16_t  Get_Adc2(void )
{

HAL_ADC_Start(&hadc2);
HAL_ADC_PollForConversion(&hadc2,10);             //轮询转换
return (uint16_t )HAL_ADC_GetValue(&hadc2);             //返回最近一次ADC1规则组的转换结果
}
uint16_t  Get_Adc1(void )
{

HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc2,10);             //轮询转换
return (uint16_t )HAL_ADC_GetValue(&hadc1);             //返回最近一次ADC1规则组的转换结果
}

/* USER CODE END 1 */