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標題: STM32F030C8T6多通道ADC采集DMA程序 HAL庫 [打印本頁]

作者: 8zhangben 時間: 2021-9-19 20:53
標題: STM32F030C8T6多通道ADC采集DMA程序 HAL庫
分享一個STM32F030 多通道ADC采集并用DMA傳輸的例程，希望可以幫到都需要的TX。

#include "bsp_cpu_adc.h"
#include "usart.h"

/*
PA0 --10腳
PA4 --14腳
PA5 --15腳
PA6 --16腳
AN16-----內部溫度傳感器
AN17----內部參考電壓

*/

__IO uint16_t ADC_ConvertedValue[NOFCHANEL]={0,0,0,0};

DMA_HandleTypeDef  hdma_adcx;
ADC_HandleTypeDef  ADC_Handle;
ADC_ChannelConfTypeDef  ADC_Config;

static void Rheostat_ADC_GPIO_Config(void)
{
      GPIO_InitTypeDef GPIO_InitStructure;
      // 使能 GPIO 時鐘
      __HAL_RCC_GPIOA_CLK_ENABLE();
      __HAL_RCC_ADC1_CLK_ENABLE(); //開ADC時鐘
      // 配置 IO
      GPIO_InitStructure.Pin  = GPIO_PIN_0|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6;
      GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;  //配置為模擬模式
      GPIO_InitStructure.Pull = GPIO_NOPULL ; //不上拉不下拉
      HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
}

static void Rheostat_ADC_Mode_Config(void)
{

      // ------------------DMA Init 結構體參數初始化--------------------------
      //DMA_HandleTypeDef hdma_adcx;
      // 開啟DMA時鐘
      __HAL_RCC_DMA1_CLK_ENABLE();
      // 數據傳輸通道
      hdma_adcx.Instance = DMA1_Channel1;  //通道1

      hdma_adcx.Init.Direction=DMA_PERIPH_TO_MEMORY;          //存儲器到外設
   hdma_adcx.Init.PeriphInc=DMA_PINC_DISABLE;                //外設非增量模式
   hdma_adcx.Init.MemInc=DMA_MINC_ENABLE;                   //存儲器增量模式
   hdma_adcx.Init.PeriphDataAlignment=DMA_PDATAALIGN_HALFWORD;//外設數據長度:16位
   hdma_adcx.Init.MemDataAlignment=DMA_MDATAALIGN_HALFWORD; //存儲器數據長度:16位
   hdma_adcx.Init.Mode= DMA_CIRCULAR;                      //外設普通模式
   hdma_adcx.Init.Priority=DMA_PRIORITY_MEDIUM;             //中等優先級

      HAL_DMA_Init(&hdma_adcx);                                  //根據指定的參數初始化DMA

__HAL_LINKDMA( &ADC_Handle,DMA_Handle,hdma_adcx);       //DMA句柄關聯到
      //---------------------------------------------------------------------------
// 開啟ADC時鐘
      // __HAL_RCC_ADC1_CLK_ENABLE();
      ADC_Handle.Instance       = ADC1;
  if (HAL_ADC_DeInit(&ADC_Handle) != HAL_OK)
  {
/* ADC de-initialization Error */
// Error_Handler();
  }
   ADC_Handle.Init.ClockPrescaler       = ADC_CLOCK_SYNC_PCLK_DIV2;    /* 同步時鐘模式，帶prscaler 2的輸入ADC時鐘 */
      ADC_Handle.Init.Resolution          = ADC_RESOLUTION_12B;          /* //12位精度 */
      ADC_Handle.Init.DataAlign          = ADC_DATAALIGN_RIGHT;          /* //右對齊 */
      ADC_Handle.Init.ScanConvMode       = ADC_SCAN_DIRECTION_FORWARD; /* Sequencer disabled (ADC conversion on only 1 channel: channel set on rank 1) */
      ADC_Handle.Init.EOCSelection       = ADC_EOC_SINGLE_CONV;          /* EOC flag picked-up to indicate conversion end */
      ADC_Handle.Init.LowPowerAutoPowerOff  = DISABLE;
      ADC_Handle.Init.LowPowerAutoWait    = DISABLE;                      /* Auto-delayed conversion feature disabled */
      ADC_Handle.Init.ContinuousConvMode = ENABLE;                      /* Continuous mode enabled (automatic conversion restart after each conversion) */
      ADC_Handle.Init.DiscontinuousConvMode = DISABLE;                      /* Parameter discarded because sequencer is disabled */
      ADC_Handle.Init.ExternalTrigConv    = ADC_SOFTWARE_START;          /* 軟件觸發 */
      ADC_Handle.Init.ExternalTrigConvEdge  = ADC_EXTERNALTRIGCONVEDGE_NONE; /* Parameter discarded because software trigger chosen */
      ADC_Handle.Init.DMAContinuousRequests = ENABLE;                      /* ADC DMA continuous request to match with DMA circular mode */
      ADC_Handle.Init.Overrun             = ADC_OVR_DATA_OVERWRITTEN;    /* DR register is overwritten with the last conversion result in case of overrun */
      ADC_Handle.Init.SamplingTimeCommon = ADC_SAMPLETIME_55CYCLES_5;

               /* Initialize ADC peripheral according to the passed parameters */
      if (HAL_ADC_Init(&ADC_Handle) != HAL_OK)  //初始化
      {
            //Error_Handler();
               printf("初始化失A\r\n");
      }

//
//       /*  ADC 校準 ################### */
      if (HAL_ADCEx_Calibration_Start(&ADC_Handle) != HAL_OK)
      {
            //Error_Handler();
               printf("校準失敗\r\n");
      }
  //---------------------------------------------------------------------------
      ADC_Config.Channel    =  ADC_CHANNEL_0;
      ADC_Config.Rank       = ADC_RANK_CHANNEL_NUMBER;
// 采樣時間間隔
ADC_Config.SamplingTime = ADC_SAMPLETIME_55CYCLES_5 ;


      if (HAL_ADC_ConfigChannel(&ADC_Handle, &ADC_Config) != HAL_OK)
      {
            //Error_Handler();
      }
      //---------------------------------------------------------------------------
      ADC_Config.Channel    =  ADC_CHANNEL_4;
      // ADC_Config.Rank       = 1;
// 采樣時間間隔
ADC_Config.SamplingTime = ADC_SAMPLETIME_55CYCLES_5 ;

HAL_ADC_ConfigChannel(&ADC_Handle, &ADC_Config);

      //---------------------------------------------------------------------------
      ADC_Config.Channel    =  ADC_CHANNEL_5;

// 采樣時間間隔
ADC_Config.SamplingTime = ADC_SAMPLETIME_55CYCLES_5 ;

HAL_ADC_ConfigChannel(&ADC_Handle, &ADC_Config);

      //---------------------------------------------------------------------------
      ADC_Config.Channel    =  ADC_CHANNEL_6;

// 采樣時間間隔
ADC_Config.SamplingTime = ADC_SAMPLETIME_55CYCLES_5 ;

HAL_ADC_ConfigChannel(&ADC_Handle, &ADC_Config);

      //---------------------------------------------------------------------------
      ADC_Config.Channel    =  ADC_CHANNEL_16;

// 采樣時間間隔
ADC_Config.SamplingTime = ADC_SAMPLETIME_55CYCLES_5 ;

HAL_ADC_ConfigChannel(&ADC_Handle, &ADC_Config);

      //---------------------------------------------------------------------------
      ADC_Config.Channel    =  ADC_CHANNEL_17;

// 采樣時間間隔
ADC_Config.SamplingTime = ADC_SAMPLETIME_55CYCLES_5 ;

HAL_ADC_ConfigChannel(&ADC_Handle, &ADC_Config);


   /* ### - 4 - Start conversion in DMA mode ################################# */
  if (HAL_ADC_Start_DMA(&ADC_Handle,
                     (uint32_t *)ADC_ConvertedValue,
                     NOFCHANEL
                     ) != HAL_OK)
  {
   while(1);

  }

代碼下載:

FreeRTOS_多通道ADC-DMA _HAL.7z (680.76 KB, 下載次數: 162)

作者: 黃youhui 時間: 2021-9-23 19:59
FreeRTOS系統？

作者: kavin21513 時間: 2021-12-1 08:30
同問？帶系統？

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