172 lines
5.5 KiB
C
172 lines
5.5 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) 2024 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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uint16_t ADC_ConvertedValue[3] = {0};//ADC数据
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//温度数据临时储存
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uint16_t adc_temp[10] = {0};
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uint32_t temp_sum = 0;
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//AO1反馈数据临时储存
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uint16_t adc_ao1[10] = {0};
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uint32_t ao1_sum = 0;
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//AO2反馈数据临时储存
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uint16_t adc_ao2[10] = {0};
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uint32_t ao2_sum = 0;
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//ADC采样计数
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int adc_count = 0;
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uint8_t ADC_TC_Flag = 0;//ADC数据转换标志
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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_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_ADC1);
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOA);
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/**ADC1 GPIO Configuration
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PA0-WKUP ------> ADC1_IN0
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PA1 ------> ADC1_IN1
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PA2 ------> ADC1_IN2
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*/
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GPIO_InitStruct.Pin = ADC_IN0_AO1_Pin|ADC_IN1_A02_Pin|ADC_IN2_RT_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(GPIOA, &GPIO_InitStruct);
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/* ADC1 DMA Init */
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/* ADC1 Init */
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LL_DMA_SetChannelSelection(DMA2, LL_DMA_STREAM_0, LL_DMA_CHANNEL_0);
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LL_DMA_SetDataTransferDirection(DMA2, LL_DMA_STREAM_0, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
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LL_DMA_SetStreamPriorityLevel(DMA2, LL_DMA_STREAM_0, LL_DMA_PRIORITY_LOW);
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LL_DMA_SetMode(DMA2, LL_DMA_STREAM_0, LL_DMA_MODE_CIRCULAR);
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LL_DMA_SetPeriphIncMode(DMA2, LL_DMA_STREAM_0, LL_DMA_PERIPH_NOINCREMENT);
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LL_DMA_SetMemoryIncMode(DMA2, LL_DMA_STREAM_0, LL_DMA_MEMORY_INCREMENT);
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LL_DMA_SetPeriphSize(DMA2, LL_DMA_STREAM_0, LL_DMA_PDATAALIGN_HALFWORD);
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LL_DMA_SetMemorySize(DMA2, LL_DMA_STREAM_0, LL_DMA_MDATAALIGN_HALFWORD);
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LL_DMA_DisableFifoMode(DMA2, LL_DMA_STREAM_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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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.SequencersScanMode = LL_ADC_SEQ_SCAN_ENABLE;
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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_ENABLE_3RANKS;
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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_UNLIMITED;
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LL_ADC_REG_Init(ADC1, &ADC_REG_InitStruct);
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LL_ADC_REG_SetFlagEndOfConversion(ADC1, LL_ADC_REG_FLAG_EOC_SEQUENCE_CONV);
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ADC_CommonInitStruct.CommonClock = LL_ADC_CLOCK_SYNC_PCLK_DIV4;
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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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/** Configure Regular Channel
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*/
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LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_1, LL_ADC_CHANNEL_0);
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LL_ADC_SetChannelSamplingTime(ADC1, LL_ADC_CHANNEL_0, LL_ADC_SAMPLINGTIME_480CYCLES);
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/** Configure Regular Channel
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*/
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LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_2, LL_ADC_CHANNEL_1);
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LL_ADC_SetChannelSamplingTime(ADC1, LL_ADC_CHANNEL_1, LL_ADC_SAMPLINGTIME_480CYCLES);
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/** Configure Regular Channel
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*/
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LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_3, LL_ADC_CHANNEL_2);
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LL_ADC_SetChannelSamplingTime(ADC1, LL_ADC_CHANNEL_2, LL_ADC_SAMPLINGTIME_480CYCLES);
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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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void adc1_start_dma(void)
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{
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LL_DMA_SetDataLength(DMA2,LL_DMA_STREAM_0,3);
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LL_DMA_SetPeriphAddress(DMA2,LL_DMA_STREAM_0,LL_ADC_DMA_GetRegAddr(ADC1,LL_ADC_DMA_REG_REGULAR_DATA));
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LL_DMA_SetMemoryAddress(DMA2,LL_DMA_STREAM_0,(uint32_t)ADC_ConvertedValue);
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LL_DMA_EnableStream(DMA2,LL_DMA_STREAM_0);
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LL_DMA_ClearFlag_TC0(DMA2);
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LL_DMA_EnableIT_TC(DMA2, LL_DMA_STREAM_0);
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LL_ADC_Enable(ADC1);
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LL_ADC_REG_StartConversionSWStart(ADC1);
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LL_ADC_REG_SetDMATransfer(ADC1,LL_ADC_REG_DMA_TRANSFER_UNLIMITED);
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}
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void get_adc_value(void)
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{
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if(ADC_TC_Flag == 1)
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{
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adc_ao2[adc_count] = ADC_ConvertedValue[0];
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ao2_sum += adc_ao2[adc_count];
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adc_ao1[adc_count] = ADC_ConvertedValue[1];
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ao1_sum += adc_ao1[adc_count];
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adc_temp[adc_count] = ADC_ConvertedValue[2];
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temp_sum += adc_temp[adc_count];
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adc_count ++;
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if(adc_count > 9)
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{
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adc_count = 0;
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InputReg[0] = temp_sum / 10;//环境温度
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temp_sum = 0;
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//InputReg[1] = (ao1_sum / 50) * 3300 / 4096;//AO反馈
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InputReg[1] = (uint16_t)(((ao1_sum / 10) * 3300 / 4096 - 1500) / 0.082);
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ao1_sum = 0;
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//InputReg[9] = (ao2_sum / 50) * 3300 / 4096;//AO反馈备用（0-25000uA）
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InputReg[10] = (uint16_t)((((ao2_sum / 10) * 3300 / 4096) - 1500) / 0.082);
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ao2_sum = 0;
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}
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ADC_TC_Flag = 0;
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}
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}
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/* USER CODE END 1 */
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