STM32基于LL库——DMA传输双路ADC数据

/**
  ******************************************************************************
  * File Name          : ADC.c
  * Description        : This file provides code for the configuration
  *                      of the ADC instances.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "adc.h"

/* USER CODE BEGIN 0 */
uint16_t ADC_ConvertedValue[2]={0,0};
/* USER CODE END 0 */

/* ADC1 init function */
void MX_ADC1_Init(void)
{
  LL_ADC_InitTypeDef ADC_InitStruct = {0};
  LL_ADC_CommonInitTypeDef ADC_CommonInitStruct = {0};
  LL_ADC_REG_InitTypeDef ADC_REG_InitStruct = {0};

  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* Peripheral clock enable */
  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_ADC1);
  
  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
  /**ADC1 GPIO Configuration  
  PA1   ------> ADC1_IN1
  PA2   ------> ADC1_IN2 
  */
  GPIO_InitStruct.Pin = LL_GPIO_PIN_1|LL_GPIO_PIN_2;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG;
  LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* ADC1 DMA Init */
  
  /* ADC1 Init */
  LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_1, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);

  LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_1, LL_DMA_PRIORITY_HIGH);

  LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_1, LL_DMA_MODE_CIRCULAR);

  LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_1, LL_DMA_PERIPH_NOINCREMENT);

  LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_1, LL_DMA_MEMORY_INCREMENT);

  LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_1, LL_DMA_PDATAALIGN_HALFWORD);

  LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_1, LL_DMA_MDATAALIGN_HALFWORD);

  /* ADC1 interrupt Init */
  NVIC_SetPriority(ADC1_2_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
  NVIC_EnableIRQ(ADC1_2_IRQn);

  /** Common config 
  */
  ADC_InitStruct.DataAlignment = LL_ADC_DATA_ALIGN_RIGHT;
  ADC_InitStruct.SequencersScanMode = LL_ADC_SEQ_SCAN_ENABLE;
  LL_ADC_Init(ADC1, &ADC_InitStruct);
  ADC_CommonInitStruct.Multimode = LL_ADC_MULTI_INDEPENDENT;
  LL_ADC_CommonInit(__LL_ADC_COMMON_INSTANCE(ADC1), &ADC_CommonInitStruct);
  ADC_REG_InitStruct.TriggerSource = LL_ADC_REG_TRIG_SOFTWARE;
  ADC_REG_InitStruct.SequencerLength = LL_ADC_REG_SEQ_SCAN_ENABLE_2RANKS;
  ADC_REG_InitStruct.SequencerDiscont = LL_ADC_REG_SEQ_DISCONT_DISABLE;
  ADC_REG_InitStruct.ContinuousMode = LL_ADC_REG_CONV_CONTINUOUS;
  ADC_REG_InitStruct.DMATransfer = LL_ADC_REG_DMA_TRANSFER_UNLIMITED;
  LL_ADC_REG_Init(ADC1, &ADC_REG_InitStruct);
  /** Configure Regular Channel 
  */
  LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_1, LL_ADC_CHANNEL_1);
  LL_ADC_SetChannelSamplingTime(ADC1, LL_ADC_CHANNEL_1, LL_ADC_SAMPLINGTIME_1CYCLE_5);
  /** Configure Regular Channel 
  */
  LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_2, LL_ADC_CHANNEL_2);
  LL_ADC_SetChannelSamplingTime(ADC1, LL_ADC_CHANNEL_2, LL_ADC_SAMPLINGTIME_1CYCLE_5);

}

/* USER CODE BEGIN 1 */

void ADC_DMA_Config_Start(void)
{
	LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_1, LL_DMA_PRIORITY_LOW);
	LL_DMA_SetMemoryAddress(DMA1,LL_DMA_CHANNEL_1,(uint32_t)ADC_ConvertedValue);
	LL_DMA_SetPeriphAddress(DMA1,LL_DMA_CHANNEL_1,LL_ADC_DMA_GetRegAddr(ADC1,LL_ADC_DMA_REG_REGULAR_DATA));
	LL_DMA_SetDataLength(DMA1,LL_DMA_CHANNEL_1, sizeof(ADC_ConvertedValue));
	LL_DMA_EnableChannel(DMA1,LL_DMA_CHANNEL_1);
	
	LL_ADC_Enable(ADC1);
	LL_ADC_StartCalibration(ADC1);
	while(LL_ADC_IsCalibrationOnGoing(ADC1));
	
	LL_ADC_REG_StartConversionSWStart(ADC1);
}

/* USER CODE END 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

/**
  ******************************************************************************
  * File Name          : dma.c
  * Description        : This file provides code for the configuration
  *                      of all the requested memory to memory DMA transfers.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "dma.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/*----------------------------------------------------------------------------*/
/* Configure DMA                                                              */
/*----------------------------------------------------------------------------*/

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/** 
  * Enable DMA controller clock
  */
void MX_DMA_Init(void) 
{

  /* Init with LL driver */
  /* DMA controller clock enable */
  LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA1);

  /* DMA interrupt init */
  /* DMA1_Channel1_IRQn interrupt configuration */
  NVIC_SetPriority(DMA1_Channel1_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
  NVIC_EnableIRQ(DMA1_Channel1_IRQn);

}

/* USER CODE BEGIN 2 */

/* USER CODE END 2 */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "adc.h"
#include "dma.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
float ADC_ConvertedValueLocal[2]; 
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  

  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_AFIO);
  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);

  NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);

  /* System interrupt init*/

  /** DISABLE: JTAG-DP Disabled and SW-DP Disabled 
  */
  LL_GPIO_AF_DisableRemap_SWJ();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_ADC1_Init();
  MX_TIM3_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */
	printf("STM32CubeMX Test...
");
	ADC_DMA_Config_Start();
	LL_TIM_EnableIT_UPDATE(TIM3);
	LL_TIM_EnableCounter(TIM3);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
		LL_GPIO_TogglePin(LED0_GPIO_Port,LED0_Pin);
		LL_GPIO_TogglePin(LED1_GPIO_Port,LED1_Pin);
		LL_mDelay(200);
		printf("ADC->CH1 Value:%d
",ADC_ConvertedValue[0]);
		printf("ADC->CH2 Value:%d
",ADC_ConvertedValue[1]);
		LL_mDelay(200);
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);

   if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
  {
    Error_Handler();  
  }
  LL_RCC_HSE_Enable();

   /* Wait till HSE is ready */
  while(LL_RCC_HSE_IsReady() != 1)
  {
    
  }
  LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9);
  LL_RCC_PLL_Enable();

   /* Wait till PLL is ready */
  while(LL_RCC_PLL_IsReady() != 1)
  {
    
  }
  LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
  LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
  LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
  LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);

   /* Wait till System clock is ready */
  while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
  {
  
  }
  LL_Init1msTick(72000000);
  LL_SetSystemCoreClock(72000000);
  LL_RCC_SetADCClockSource(LL_RCC_ADC_CLKSRC_PCLK2_DIV_8);
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{ 
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d
", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

原文地址:https://www.cnblogs.com/hhsxy/p/14018394.html