259 lines
7.6 KiB
C
259 lines
7.6 KiB
C
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file usart.c
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* @brief This file provides code for the configuration
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* of the USART instances.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2024 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "usart.h"
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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UART_HandleTypeDef huart3;
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DMA_HandleTypeDef hdma_usart3_rx;
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/* USART3 init function */
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void MX_USART3_UART_Init(void)
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{
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/* USER CODE BEGIN USART3_Init 0 */
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/* USER CODE END USART3_Init 0 */
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/* USER CODE BEGIN USART3_Init 1 */
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//256000*4
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/* USER CODE END USART3_Init 1 */
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huart3.Instance = USART3;
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huart3.Init.BaudRate = 9600*2;
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huart3.Init.WordLength = UART_WORDLENGTH_8B;
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huart3.Init.StopBits = UART_STOPBITS_1;
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huart3.Init.Parity = UART_PARITY_NONE;
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huart3.Init.Mode = UART_MODE_TX_RX;
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huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart3.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart3) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART3_Init 2 */
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/* USER CODE END USART3_Init 2 */
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}
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void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(uartHandle->Instance==USART3)
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{
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/* USER CODE BEGIN USART3_MspInit 0 */
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/* USER CODE END USART3_MspInit 0 */
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/* USART3 clock enable */
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__HAL_RCC_USART3_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**USART3 GPIO Configuration
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PB10 ------> USART3_TX
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PB11 ------> USART3_RX
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_10;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_11;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* USART3 DMA Init */
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/* USART3_RX Init */
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hdma_usart3_rx.Instance = DMA1_Channel3;
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hdma_usart3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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hdma_usart3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_usart3_rx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_usart3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_usart3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_usart3_rx.Init.Mode = DMA_CIRCULAR;
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hdma_usart3_rx.Init.Priority = DMA_PRIORITY_LOW;
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if (HAL_DMA_Init(&hdma_usart3_rx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(uartHandle,hdmarx,hdma_usart3_rx);
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/* USART3 interrupt Init */
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HAL_NVIC_SetPriority(USART3_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(USART3_IRQn);
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/* USER CODE BEGIN USART3_MspInit 1 */
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/* USER CODE END USART3_MspInit 1 */
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}
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}
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void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
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{
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if(uartHandle->Instance==USART3)
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{
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/* USER CODE BEGIN USART3_MspDeInit 0 */
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/* USER CODE END USART3_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_USART3_CLK_DISABLE();
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/**USART3 GPIO Configuration
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PB10 ------> USART3_TX
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PB11 ------> USART3_RX
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*/
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_11);
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/* USART3 DMA DeInit */
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HAL_DMA_DeInit(uartHandle->hdmarx);
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/* USART3 interrupt Deinit */
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HAL_NVIC_DisableIRQ(USART3_IRQn);
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/* USER CODE BEGIN USART3_MspDeInit 1 */
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/* USER CODE END USART3_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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// CUSTOM UART INIT
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//void User_UART_Init(UART_HandleTypeDef* huart, DMA_HandleTypeDef *DMAhuart, struct UARTSettings *uuart)
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//{ // function takes uart handler, dma handler and setting structure for init
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//
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// // get setting for uart from UARTSettings structure
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// huart->Instance = uuart->UARTx;
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// huart->Init.BaudRate = uuart->UART_Speed*2;
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//
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// // everything else is default (for now, maybe this settings would be added in UARTSettings structure later)
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// huart->Init.WordLength = UART_WORDLENGTH_8B;
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// huart->Init.StopBits = UART_STOPBITS_1;
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// huart->Init.Parity = UART_PARITY_NONE;
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// huart->Init.Mode = UART_MODE_TX_RX;
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// huart->Init.HwFlowCtl = UART_HWCONTROL_NONE;
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// huart->Init.OverSampling = UART_OVERSAMPLING_16;
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// if (HAL_UART_Init(huart) != HAL_OK)
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// {
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// Error_Handler();
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// }
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//
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// // init gpio from UARTSettings structure
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// UART_GPIO_Init(uuart->GPIOx, uuart->GPIO_PIN_RX, uuart->GPIO_PIN_TX);
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// // init dma from UARTSettings structure if need
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// if (uuart->DMAChannel != 0)
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// UART_DMA_Init(huart, DMAhuart, uuart->DMAChannel);
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//}
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//void UART_GPIO_Init(GPIO_TypeDef *GPIOx, uint16_t GPIO_PIN_RX, uint16_t GPIO_PIN_TX)
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//{ // function takes port and pins (for rx and tx)
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// GPIO_InitTypeDef GPIO_InitStruct = {0};
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//
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// // choose port for enable clock
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// if (GPIOx==GPIOA)
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// __HAL_RCC_GPIOA_CLK_ENABLE();
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// else if (GPIOx==GPIOB)
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// __HAL_RCC_GPIOB_CLK_ENABLE();
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// else if (GPIOx==GPIOC)
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// __HAL_RCC_GPIOC_CLK_ENABLE();
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// else if (GPIOx==GPIOD)
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// __HAL_RCC_GPIOD_CLK_ENABLE();
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//
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//// USART3 GPIO Configuration
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////GPIO_PIN_TX ------> USART_TX
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// GPIO_InitStruct.Pin = GPIO_PIN_TX;
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// GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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// GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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// HAL_GPIO_Init(GPIOx, &GPIO_InitStruct);
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//// GPIO_PIN_RX ------> USART_RX
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// GPIO_InitStruct.Pin = GPIO_PIN_RX;
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// GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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// GPIO_InitStruct.Pull = GPIO_NOPULL;
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// HAL_GPIO_Init(GPIOx, &GPIO_InitStruct);
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//}
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//void UART_DMA_Init(UART_HandleTypeDef *huart, DMA_HandleTypeDef *hdma_rx, DMA_Channel_TypeDef *DMAhuart)
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//{ // function takes uart and dma handlers and dmachannel for uart
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// // for now only dma rx is supported, tx maybe later if needed
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//
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// /* USART3 DMA Init */
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// /* USART3_RX Init */
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// hdma_rx->Instance = DMAhuart;
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// hdma_rx->Init.Direction = DMA_PERIPH_TO_MEMORY;
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// hdma_rx->Init.PeriphInc = DMA_PINC_DISABLE;
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// hdma_rx->Init.MemInc = DMA_MINC_ENABLE;
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// hdma_rx->Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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// hdma_rx->Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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// hdma_rx->Init.Mode = DMA_CIRCULAR;
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// hdma_rx->Init.Priority = DMA_PRIORITY_LOW;
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// if (HAL_DMA_Init(hdma_rx) != HAL_OK)
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// {
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// Error_Handler();
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// }
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// __USER_LINKDMA(huart,hdmarx,hdma_rx);
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// // __USER_LINKDMA is need because __HAL_LINKDMA is written for global defined hdma_rx
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// // so you get error because hal uses . insted of ->
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//}
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//void HAL_UART_MspInit(UART_HandleTypeDef* huart) // redefine hal function
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//{ // left only rcc and interrupt init for USART_1,2,3 (maybe UART_4,5 need to be added)
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// // GPIO and DMA init was move to their own functions
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// if(huart->Instance==USART3)
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// {
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// /* USART3 clock enable */
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// __HAL_RCC_USART3_CLK_ENABLE();
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//
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// /* USART3 interrupt Init */
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// HAL_NVIC_SetPriority(USART3_IRQn, 0, 0);
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// HAL_NVIC_EnableIRQ(USART3_IRQn);
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// }
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// else if(huart->Instance==USART2)
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// {
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// /* USART3 clock enable */
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// __HAL_RCC_USART2_CLK_ENABLE();
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//
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// /* USART3 interrupt Init */
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// HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);
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// HAL_NVIC_EnableIRQ(USART2_IRQn);
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// }
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// else if(huart->Instance==USART1)
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// {
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// /* USART3 clock enable */
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// __HAL_RCC_USART1_CLK_ENABLE();
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//
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// /* USART3 interrupt Init */
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// HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
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// HAL_NVIC_EnableIRQ(USART1_IRQn);
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// }
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//}
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/* USER CODE END 1 */
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