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189 lines
6.6 KiB
C
189 lines
6.6 KiB
C
/**
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******************************************************************************
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* File Name : USART.c
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* Description : This file provides code for the configuration
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* of the USART instances.
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******************************************************************************
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* This notice applies to any and all portions of this file
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* that are not between comment pairs USER CODE BEGIN and
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* USER CODE END. Other portions of this file, whether
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* inserted by the user or by software development tools
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* are owned by their respective copyright owners.
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*
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* Copyright (c) 2018 STMicroelectronics International N.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usart.h"
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#include "gpio.h"
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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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UART_HandleTypeDef huart1;
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DMA_HandleTypeDef hdma_usart1_tx;
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DMA_HandleTypeDef hdma_usart1_rx;
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/* USART1 init function */
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void MX_USART1_UART_Init(void)
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{
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huart1.Instance = USART1;
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huart1.Init.BaudRate = 9600;
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huart1.Init.WordLength = UART_WORDLENGTH_8B;
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huart1.Init.StopBits = UART_STOPBITS_1;
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huart1.Init.Parity = UART_PARITY_NONE;
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huart1.Init.Mode = UART_MODE_TX_RX;
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huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart1.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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_Error_Handler(__FILE__, __LINE__);
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}
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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;
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if(uartHandle->Instance==USART1)
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{
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/* USER CODE BEGIN USART1_MspInit 0 */
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/* USER CODE END USART1_MspInit 0 */
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/* USART1 clock enable */
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__HAL_RCC_USART1_CLK_ENABLE();
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/**USART1 GPIO Configuration
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PB6 ------> USART1_TX
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PB7 ------> USART1_RX
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*/
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GPIO_InitStruct.Pin = UART_TX_Pin;
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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(UART_TX_GPIO_Port, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = UART_RX_Pin;
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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(UART_RX_GPIO_Port, &GPIO_InitStruct);
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__HAL_AFIO_REMAP_USART1_ENABLE();
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/* USART1 DMA Init */
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/* USART1_TX Init */
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hdma_usart1_tx.Instance = DMA1_Channel4;
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hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_usart1_tx.Init.Mode = DMA_NORMAL;
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hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
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if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
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{
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_Error_Handler(__FILE__, __LINE__);
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}
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__HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);
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/* USART1_RX Init */
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hdma_usart1_rx.Instance = DMA1_Channel5;
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hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_usart1_rx.Init.Mode = DMA_CIRCULAR;
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hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
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if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
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{
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_Error_Handler(__FILE__, __LINE__);
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}
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__HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);
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/* USER CODE BEGIN USART1_MspInit 1 */
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/* USER CODE END USART1_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==USART1)
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{
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/* USER CODE BEGIN USART1_MspDeInit 0 */
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/* USER CODE END USART1_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_USART1_CLK_DISABLE();
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/**USART1 GPIO Configuration
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PB6 ------> USART1_TX
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PB7 ------> USART1_RX
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*/
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HAL_GPIO_DeInit(GPIOB, UART_TX_Pin|UART_RX_Pin);
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/* USART1 DMA DeInit */
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HAL_DMA_DeInit(uartHandle->hdmatx);
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HAL_DMA_DeInit(uartHandle->hdmarx);
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/* USER CODE BEGIN USART1_MspDeInit 1 */
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/* USER CODE END USART1_MspDeInit 1 */
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}
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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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* @}
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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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