76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/**
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******************************************************************************
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* File Name : dma.c
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* Description : This file provides code for the configuration
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* of all the requested memory to memory DMA transfers.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2020 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "dma.h"
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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/*----------------------------------------------------------------------------*/
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/* Configure DMA */
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/*----------------------------------------------------------------------------*/
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/**
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* Enable DMA controller clock
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*/
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void MX_DMA_Init(void)
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{
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/* Init with LL driver */
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/* DMA controller clock enable */
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA1);
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/* DMA interrupt init */
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/* DMA1_Channel5_IRQn interrupt configuration */
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NVIC_SetPriority(DMA1_Channel5_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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NVIC_EnableIRQ(DMA1_Channel5_IRQn);
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/* DMA1_Channel6_IRQn interrupt configuration */
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NVIC_SetPriority(DMA1_Channel6_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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NVIC_EnableIRQ(DMA1_Channel6_IRQn);
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}
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/* USER CODE BEGIN 2 */
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void Usart_DMA_CONFIG(USART_TypeDef *USARTx,DMA_TypeDef *DMAx, uint32_t Channel,uint32_t MemoryAddress)
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{
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LL_DMA_SetPeriphAddress(DMAx,Channel,(uint32_t)(&USARTx->DR));
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LL_USART_DMA_GetRegAddr(USARTx);
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LL_DMA_SetMemoryAddress(DMAx,Channel,(uint32_t)MemoryAddress);
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LL_DMA_SetDataLength(DMAx,Channel,128);
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LL_DMA_EnableChannel(DMAx,Channel);
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LL_USART_EnableDMAReq_RX(USARTx);
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LL_USART_EnableIT_IDLE(USARTx);
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}
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/* USER CODE END 2 */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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