/**
  ******************************************************************************
  * @file    dma.c
  * @brief   This file provides code for the configuration
  *          of all the requested memory to memory DMA transfers.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under Ultimate Liberty license
  * SLA0044, the "License"; You may not use this file except in compliance with
  * the License. You may obtain a copy of the License at:
  *                             www.st.com/SLA0044
  *
  ******************************************************************************
  */

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

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

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/**
  * 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_DMA2);

  /* Configure DMA request MEMTOMEM_DMA2_Stream4 */

  /* Select channel */
  LL_DMA_SetChannelSelection(DMA2, LL_DMA_STREAM_4, LL_DMA_CHANNEL_0);

  /* Set transfer direction */
  LL_DMA_SetDataTransferDirection(DMA2, LL_DMA_STREAM_4, LL_DMA_DIRECTION_MEMORY_TO_MEMORY);

  /* Set priority level */
  LL_DMA_SetStreamPriorityLevel(DMA2, LL_DMA_STREAM_4, LL_DMA_PRIORITY_LOW);

  /* Set DMA mode */
  LL_DMA_SetMode(DMA2, LL_DMA_STREAM_4, LL_DMA_MODE_NORMAL);

  /* Set peripheral increment mode */
  LL_DMA_SetPeriphIncMode(DMA2, LL_DMA_STREAM_4, LL_DMA_PERIPH_NOINCREMENT);

  /* Set memory increment mode */
  LL_DMA_SetMemoryIncMode(DMA2, LL_DMA_STREAM_4, LL_DMA_MEMORY_NOINCREMENT);

  /* Set peripheral data width */
  LL_DMA_SetPeriphSize(DMA2, LL_DMA_STREAM_4, LL_DMA_PDATAALIGN_HALFWORD);

  /* Set memory data width */
  LL_DMA_SetMemorySize(DMA2, LL_DMA_STREAM_4, LL_DMA_MDATAALIGN_HALFWORD);

  /* Enable FIFO mode */
  LL_DMA_EnableFifoMode(DMA2, LL_DMA_STREAM_4);

  /* Set FIFO threshold */
  LL_DMA_SetFIFOThreshold(DMA2, LL_DMA_STREAM_4, LL_DMA_FIFOTHRESHOLD_FULL);

  /* Set memory burst size */
  LL_DMA_SetMemoryBurstxfer(DMA2, LL_DMA_STREAM_4, LL_DMA_MBURST_SINGLE);

  /* Set peripheral burst size */
  LL_DMA_SetPeriphBurstxfer(DMA2, LL_DMA_STREAM_4, LL_DMA_PBURST_SINGLE);

  /* DMA interrupt init */
  /* DMA2_Stream2_IRQn interrupt configuration */
  NVIC_SetPriority(DMA2_Stream2_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
  NVIC_EnableIRQ(DMA2_Stream2_IRQn);
  /* DMA2_Stream4_IRQn interrupt configuration */
  NVIC_SetPriority(DMA2_Stream4_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
  NVIC_EnableIRQ(DMA2_Stream4_IRQn);
  /* DMA2_Stream7_IRQn interrupt configuration */
  NVIC_SetPriority(DMA2_Stream7_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
  NVIC_EnableIRQ(DMA2_Stream7_IRQn);

}

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