STM32开发中无法控制ADC接收串口

叶添元

void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
{

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

  /* USER CODE END ADC1_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_ADC1_CLK_ENABLE();
  
    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**ADC GPIO Configuration   
    PA3     ------> ADC_IN3
    PA4     ------> ADC_IN4
    PA5     ------> ADC_IN5
    */
    GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* USER CODE BEGIN ADC1_MspInit 1 */

  /* USER CODE END ADC1_MspInit 1 */
  }

}

/**
* @brief ADC MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hadc: ADC handle pointer
* @retval None
*/

void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)
{

  if(hadc->Instance==ADC1)
  {
  /* USER CODE BEGIN ADC1_MspDeInit 0 */

  /* USER CODE END ADC1_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_ADC1_CLK_DISABLE();
  
    /**ADC GPIO Configuration   
    PA3     ------> ADC_IN3
    PA4     ------> ADC_IN4
    PA5     ------> ADC_IN5
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5);

  /* USER CODE BEGIN ADC1_MspDeInit 1 */

  /* USER CODE END ADC1_MspDeInit 1 */
  }

}\

谢谢大神。
这个是msp.h里关于ADC的，也没有提到PA2，反倒是UART里有对PA2的内容，因为我使用PA2来传送UART内容
void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
{

  if(huart->Instance==USART2)
  {
  /* USER CODE BEGIN USART2_MspDeInit 0 */

  /* USER CODE END USART2_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART2_CLK_DISABLE();
  
    /**USART2 GPIO Configuration   
    PA2     ------> USART2_TX
    PA15     ------> USART2_RX
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|VCP_RX_Pin);

  /* USER CODE BEGIN USART2_MspDeInit 1 */

  /* USER CODE END USART2_MspDeInit 1 */
  }

}