adc.c

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/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    adc.c
  * @brief   This file provides code for the configuration
  *          of the ADC instances.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2026 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "adc.h"
 
/* USER CODE BEGIN 0 */
 
/* USER CODE END 0 */
 
ADC_HandleTypeDef hadc;
 
/* ADC init function */
void MX_ADC_Init(void)
{
 
  /* USER CODE BEGIN ADC_Init 0 */
 
  /* USER CODE END ADC_Init 0 */
 
  ADC_ChannelConfTypeDef sConfig = {0};
 
  /* USER CODE BEGIN ADC_Init 1 */
 
  /* USER CODE END ADC_Init 1 */
 
  /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
  */
  hadc.Instance = ADC;
  hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV4;
  hadc.Init.Resolution = ADC_RESOLUTION_12B;
  hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  hadc.Init.LowPowerAutoWait = ENABLE;
  hadc.Init.LowPowerAutoPowerOff = ENABLE;
  hadc.Init.ContinuousConvMode = DISABLE;
  hadc.Init.NbrOfConversion = 1;
  hadc.Init.DiscontinuousConvMode = DISABLE;
  hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc.Init.DMAContinuousRequests = DISABLE;
  hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;
  hadc.Init.SamplingTimeCommon1 = ADC_SAMPLETIME_160CYCLES_5;
  hadc.Init.SamplingTimeCommon2 = ADC_SAMPLETIME_160CYCLES_5;
  hadc.Init.OversamplingMode = DISABLE;
  hadc.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
  if (HAL_ADC_Init(&hadc) != HAL_OK)
  {
    Error_Handler();
  }
 
  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_VREFINT;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLINGTIME_COMMON_1;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC_Init 2 */
 
  /* USER CODE END ADC_Init 2 */
 
}
 
void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{
 
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
  if(adcHandle->Instance==ADC)
  {
  /* USER CODE BEGIN ADC_MspInit 0 */
 
  /* USER CODE END ADC_MspInit 0 */
 
  /** Initializes the peripherals clocks
  */
    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_ADC;
    PeriphClkInitStruct.AdcClockSelection = RCC_ADCCLKSOURCE_SYSCLK;
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
    {
      Error_Handler();
    }
 
    /* ADC clock enable */
    __HAL_RCC_ADC_CLK_ENABLE();
 
    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**ADC GPIO Configuration
    PA15     ------> ADC_IN11
    */
    GPIO_InitStruct.Pin = GPIO_PIN_15;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
    /* ADC interrupt Init */
    HAL_NVIC_SetPriority(ADC_IRQn, 3, 0);
    HAL_NVIC_EnableIRQ(ADC_IRQn);
  /* USER CODE BEGIN ADC_MspInit 1 */
 
  /* USER CODE END ADC_MspInit 1 */
  }
}
 
void HAL_ADC_MspDeInit(ADC_HandleTypeDef* adcHandle)
{
 
  if(adcHandle->Instance==ADC)
  {
  /* USER CODE BEGIN ADC_MspDeInit 0 */
 
  /* USER CODE END ADC_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_ADC_CLK_DISABLE();
 
    /**ADC GPIO Configuration
    PA15     ------> ADC_IN11
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_15);
 
    /* ADC interrupt Deinit */
    HAL_NVIC_DisableIRQ(ADC_IRQn);
  /* USER CODE BEGIN ADC_MspDeInit 1 */
 
  /* USER CODE END ADC_MspDeInit 1 */
  }
}
 
/* USER CODE BEGIN 1 */
 
/* USER CODE END 1 */