152 lines
3.9 KiB
C
152 lines
3.9 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file adc.c
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* @brief This file provides code for the configuration
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* of the ADC instances.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2025 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "adc.h"
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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ADC_HandleTypeDef hadc2;
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/* ADC2 init function */
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void MX_ADC2_Init(void)
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{
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/* USER CODE BEGIN ADC2_Init 0 */
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/* USER CODE END ADC2_Init 0 */
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ADC_ChannelConfTypeDef sConfig = {0};
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/* USER CODE BEGIN ADC2_Init 1 */
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/* USER CODE END ADC2_Init 1 */
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/** Common config
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*/
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hadc2.Instance = ADC2;
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hadc2.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
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hadc2.Init.Resolution = ADC_RESOLUTION_12B;
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hadc2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
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hadc2.Init.GainCompensation = 0;
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hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE;
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hadc2.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
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hadc2.Init.LowPowerAutoWait = DISABLE;
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hadc2.Init.ContinuousConvMode = DISABLE;
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hadc2.Init.NbrOfConversion = 1;
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hadc2.Init.DiscontinuousConvMode = DISABLE;
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hadc2.Init.ExternalTrigConv = ADC_SOFTWARE_START;
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hadc2.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
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hadc2.Init.DMAContinuousRequests = DISABLE;
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hadc2.Init.Overrun = ADC_OVR_DATA_PRESERVED;
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hadc2.Init.OversamplingMode = DISABLE;
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if (HAL_ADC_Init(&hadc2) != HAL_OK)
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{
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Error_Handler();
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}
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/** Configure Regular Channel
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*/
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sConfig.Channel = ADC_CHANNEL_15;
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sConfig.Rank = ADC_REGULAR_RANK_1;
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sConfig.SamplingTime = ADC_SAMPLETIME_640CYCLES_5;
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sConfig.SingleDiff = ADC_SINGLE_ENDED;
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sConfig.OffsetNumber = ADC_OFFSET_NONE;
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sConfig.Offset = 0;
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if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN ADC2_Init 2 */
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/* USER CODE END ADC2_Init 2 */
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}
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void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
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if(adcHandle->Instance==ADC2)
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{
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/* USER CODE BEGIN ADC2_MspInit 0 */
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/* USER CODE END ADC2_MspInit 0 */
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/** Initializes the peripherals clocks
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*/
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC12;
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PeriphClkInit.Adc12ClockSelection = RCC_ADC12CLKSOURCE_SYSCLK;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
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{
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Error_Handler();
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}
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/* ADC2 clock enable */
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__HAL_RCC_ADC12_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**ADC2 GPIO Configuration
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PB15 ------> ADC2_IN15
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_15;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* USER CODE BEGIN ADC2_MspInit 1 */
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/* USER CODE END ADC2_MspInit 1 */
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}
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}
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void HAL_ADC_MspDeInit(ADC_HandleTypeDef* adcHandle)
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{
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if(adcHandle->Instance==ADC2)
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{
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/* USER CODE BEGIN ADC2_MspDeInit 0 */
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/* USER CODE END ADC2_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_ADC12_CLK_DISABLE();
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/**ADC2 GPIO Configuration
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PB15 ------> ADC2_IN15
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*/
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_15);
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/* USER CODE BEGIN ADC2_MspDeInit 1 */
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/* USER CODE END ADC2_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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uint16_t get_adc_value(void)
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{
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HAL_ADC_Start(&hadc2);
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HAL_ADC_PollForConversion(&hadc2, 200);
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return HAL_ADC_GetValue(&hadc2);
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}
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/* USER CODE END 1 */
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