/**
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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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* <h2><center>© Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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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 hadc1;
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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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ADC_ChannelConfTypeDef sConfig = {0};
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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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hadc1.Instance = ADC1;
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hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
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hadc1.Init.ContinuousConvMode = DISABLE;
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hadc1.Init.DiscontinuousConvMode = ENABLE;
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hadc1.Init.NbrOfDiscConversion = 1;
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hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
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hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
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hadc1.Init.NbrOfConversion = 2;
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if (HAL_ADC_Init(&hadc1) != 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_8;
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sConfig.Rank = ADC_REGULAR_RANK_1;
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sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
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if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != 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_9;
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sConfig.Rank = ADC_REGULAR_RANK_2;
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if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
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{
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Error_Handler();
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}
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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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void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(adcHandle->Instance==ADC1)
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{
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/* USER CODE BEGIN ADC1_MspInit 0 */
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/* USER CODE END ADC1_MspInit 0 */
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/* ADC1 clock enable */
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__HAL_RCC_ADC1_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**ADC1 GPIO Configuration
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PB0 ------> ADC1_IN8
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PB1 ------> ADC1_IN9
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*/
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GPIO_InitStruct.Pin = AdcMic_Pin|AdcLux_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* USER CODE BEGIN ADC1_MspInit 1 */
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/* USER CODE END ADC1_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==ADC1)
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{
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/* USER CODE BEGIN ADC1_MspDeInit 0 */
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/* USER CODE END ADC1_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_ADC1_CLK_DISABLE();
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/**ADC1 GPIO Configuration
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PB0 ------> ADC1_IN8
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PB1 ------> ADC1_IN9
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*/
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HAL_GPIO_DeInit(GPIOB, AdcMic_Pin|AdcLux_Pin);
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/* USER CODE BEGIN ADC1_MspDeInit 1 */
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/* USER CODE END ADC1_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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enum
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{
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ADCCHN_NOISY,
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ADCCHN_LUX,
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ADCCHN_MAX,
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};
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int adc_sample_lux_noisy(uint32_t *lux, uint32_t *noisy)
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{
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uint8_t i;
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uint32_t timeout = 0xffffff;
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for(i=0; i<ADCCHN_MAX; i++)
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{
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HAL_ADC_Start(&hadc1);
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HAL_ADC_PollForConversion(&hadc1, timeout);
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if( ADCCHN_NOISY == i )
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{
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*noisy = HAL_ADC_GetValue(&hadc1);
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}
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else if( ADCCHN_LUX == i )
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{
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*lux = HAL_ADC_GetValue(&hadc1);
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}
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HAL_Delay(10);
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}
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HAL_ADC_Stop(&hadc1);
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return 0;
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}
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/* USER CODE END 1 */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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