dac.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    dac.c
  * @brief   This file provides code for the configuration
  *          of the DAC instances.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2022 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "dac.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

DAC_HandleTypeDef hdac;
DMA_HandleTypeDef hdma_dac2;

/* DAC init function */
void MX_DAC_Init(void)
{

  /* USER CODE BEGIN DAC_Init 0 */

  /* USER CODE END DAC_Init 0 */

  DAC_ChannelConfTypeDef sConfig = {0};

  /* USER CODE BEGIN DAC_Init 1 */

  /* USER CODE END DAC_Init 1 */

  /** DAC Initialization
  */
  hdac.Instance = DAC;
  if (HAL_DAC_Init(&hdac) != HAL_OK)
  {
    Error_Handler();
  }

  /** DAC channel OUT2 config
  */
  sConfig.DAC_Trigger = DAC_TRIGGER_T2_TRGO;
  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
  if (HAL_DAC_ConfigChannel(&hdac, &sConfig, DAC_CHANNEL_2) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN DAC_Init 2 */

  /* USER CODE END DAC_Init 2 */

}

void HAL_DAC_MspInit(DAC_HandleTypeDef* dacHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(dacHandle->Instance==DAC)
  {
  /* USER CODE BEGIN DAC_MspInit 0 */

  /* USER CODE END DAC_MspInit 0 */
    /* DAC clock enable */
    __HAL_RCC_DAC_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**DAC GPIO Configuration
    PA5     ------> DAC_OUT2
    */
    GPIO_InitStruct.Pin = GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* DAC DMA Init */
    /* DAC2 Init */
    hdma_dac2.Instance = DMA1_Stream6;
    hdma_dac2.Init.Channel = DMA_CHANNEL_7;
    hdma_dac2.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_dac2.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_dac2.Init.MemInc = DMA_MINC_ENABLE;
    hdma_dac2.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
    hdma_dac2.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
    hdma_dac2.Init.Mode = DMA_CIRCULAR;
    hdma_dac2.Init.Priority = DMA_PRIORITY_HIGH;
    hdma_dac2.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_dac2) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(dacHandle,DMA_Handle2,hdma_dac2);

  /* USER CODE BEGIN DAC_MspInit 1 */

  /* USER CODE END DAC_MspInit 1 */
  }
}

void HAL_DAC_MspDeInit(DAC_HandleTypeDef* dacHandle)
{

  if(dacHandle->Instance==DAC)
  {
  /* USER CODE BEGIN DAC_MspDeInit 0 */

  /* USER CODE END DAC_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_DAC_CLK_DISABLE();

    /**DAC GPIO Configuration
    PA5     ------> DAC_OUT2
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5);

    /* DAC DMA DeInit */
    HAL_DMA_DeInit(dacHandle->DMA_Handle2);
  /* USER CODE BEGIN DAC_MspDeInit 1 */

  /* USER CODE END DAC_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */