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104 lines
3.5 KiB
C
104 lines
3.5 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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/* ADC1 init function */
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void MX_ADC1_Init(void)
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{
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/* USER CODE BEGIN ADC1_Init 0 */
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/* USER CODE END ADC1_Init 0 */
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LL_ADC_InitTypeDef ADC_InitStruct = {0};
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LL_ADC_REG_InitTypeDef ADC_REG_InitStruct = {0};
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LL_ADC_CommonInitTypeDef ADC_CommonInitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* Peripheral clock enable */
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_ADC12);
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOC);
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/**ADC1 GPIO Configuration
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PC2 ------> ADC1_IN8
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PC3 ------> ADC1_IN9
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*/
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GPIO_InitStruct.Pin = ADC_JACK1_Pin|ADC_JACK2_Pin;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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LL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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/* USER CODE BEGIN ADC1_Init 1 */
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/* USER CODE END ADC1_Init 1 */
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/** Common config
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*/
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ADC_InitStruct.Resolution = LL_ADC_RESOLUTION_12B;
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ADC_InitStruct.DataAlignment = LL_ADC_DATA_ALIGN_RIGHT;
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ADC_InitStruct.LowPowerMode = LL_ADC_LP_MODE_NONE;
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LL_ADC_Init(ADC1, &ADC_InitStruct);
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ADC_REG_InitStruct.TriggerSource = LL_ADC_REG_TRIG_SOFTWARE;
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ADC_REG_InitStruct.SequencerLength = LL_ADC_REG_SEQ_SCAN_DISABLE;
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ADC_REG_InitStruct.SequencerDiscont = LL_ADC_REG_SEQ_DISCONT_DISABLE;
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ADC_REG_InitStruct.ContinuousMode = LL_ADC_REG_CONV_SINGLE;
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ADC_REG_InitStruct.DMATransfer = LL_ADC_REG_DMA_TRANSFER_LIMITED;
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ADC_REG_InitStruct.Overrun = LL_ADC_REG_OVR_DATA_OVERWRITTEN;
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LL_ADC_REG_Init(ADC1, &ADC_REG_InitStruct);
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ADC_CommonInitStruct.CommonClock = LL_ADC_CLOCK_ASYNC_DIV1;
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ADC_CommonInitStruct.Multimode = LL_ADC_MULTI_INDEPENDENT;
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LL_ADC_CommonInit(__LL_ADC_COMMON_INSTANCE(ADC1), &ADC_CommonInitStruct);
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/* Enable ADC internal voltage regulator */
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LL_ADC_EnableInternalRegulator(ADC1);
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/* Delay for ADC internal voltage regulator stabilization. */
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/* Compute number of CPU cycles to wait for, from delay in us. */
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/* Note: Variable divided by 2 to compensate partially */
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/* CPU processing cycles (depends on compilation optimization). */
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/* Note: If system core clock frequency is below 200kHz, wait time */
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/* is only a few CPU processing cycles. */
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uint32_t wait_loop_index;
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wait_loop_index = ((LL_ADC_DELAY_INTERNAL_REGUL_STAB_US * (SystemCoreClock / (100000 * 2))) / 10);
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while(wait_loop_index != 0)
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{
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wait_loop_index--;
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}
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/** Configure Regular Channel
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*/
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LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_1, LL_ADC_CHANNEL_8);
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LL_ADC_SetChannelSamplingTime(ADC1, LL_ADC_CHANNEL_8, LL_ADC_SAMPLINGTIME_1CYCLE_5);
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LL_ADC_SetChannelSingleDiff(ADC1, LL_ADC_CHANNEL_8, LL_ADC_SINGLE_ENDED);
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/* USER CODE BEGIN ADC1_Init 2 */
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/* USER CODE END ADC1_Init 2 */
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}
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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