101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
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#include "HD_ADC.h"
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/* adcУֵ */
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int16_t Calibrattion_Val = 0;
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#define adcNum 3
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/* ͨ<><CDA8>dma<6D><61>adc<64>ɼ<EFBFBD><C9BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD> */
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uint16_t adcData[adcNum] = {0};
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/**
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* @brief <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>adc
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* @param
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* @retval
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*/
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void HD_ADC_InIt(void)
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{
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ADC_InitTypeDef ADC_InitStructure={0};
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GPIO_InitTypeDef GPIO_InitStructure={0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE );
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE );
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RCC_ADCCLKConfig(RCC_PCLK2_Div4);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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ADC_DeInit(ADC1);
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ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
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ADC_InitStructure.ADC_ScanConvMode = ENABLE;
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ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
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ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
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ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
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ADC_InitStructure.ADC_NbrOfChannel = adcNum;
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ADC_Init(ADC1, &ADC_InitStructure);
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ADC_DMACmd(ADC1, ENABLE);
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ADC_Cmd(ADC1, ENABLE);
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ADC_BufferCmd(ADC1, DISABLE); //disable buffer
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ADC_ResetCalibration(ADC1);
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while(ADC_GetResetCalibrationStatus(ADC1));
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ADC_StartCalibration(ADC1);
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while(ADC_GetCalibrationStatus(ADC1));
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Calibrattion_Val = Get_CalibrationValue(ADC1);
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}
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/**
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* @brief <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>adc<EFBFBD><EFBFBD>dma<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param
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* @retval
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*/
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void ADC_DMA_Init(void)
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{
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DMA_InitTypeDef DMA_InitStructure={0};
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RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
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DMA_DeInit(DMA1_Channel1);
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DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&ADC1->RDATAR;
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DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)adcData;
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
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DMA_InitStructure.DMA_BufferSize = adcNum;
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DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
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DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
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DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
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DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
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DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
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DMA_Init(DMA1_Channel1, &DMA_InitStructure);
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}
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/**
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* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD>adc<EFBFBD>ɼ<EFBFBD>
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* @param
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* @retval
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*/
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void startAdcCapture(void)
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{
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/* ʹ<><CAB9>adc<64><63><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8> */
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DMA_Cmd(DMA1_Channel1 , ENABLE);
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/* <20><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>˳<EFBFBD><CBB3> */
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ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_239Cycles5);
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ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 2, ADC_SampleTime_239Cycles5);
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ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 3, ADC_SampleTime_239Cycles5);
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/* ʹ<><CAB9>ADC<44><43>dma<6D><61><EFBFBD><EFBFBD> */
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ADC_DMACmd(ADC1, ENABLE);
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/* <20><><EFBFBD><EFBFBD>adc<64><63><EFBFBD><EFBFBD> */
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ADC_SoftwareStartConvCmd(ADC1, ENABLE);
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}
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