300 lines
8.4 KiB
C
300 lines
8.4 KiB
C
/* 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) 2023 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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/* 接收缓冲, ï¿??大USART_REC_LEN个å—ï¿??. */
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uint8_t g_usart_rx_buf[USART_REC_LEN];
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/* 接收状�??
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* bit15ï¿?? 接收完æˆ<C3A6>æ ‡å¿—
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* bit14�? 接收�?0x0d
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* bit13~0ï¿?? 接收到的有效å—节数目
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*/
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uint16_t g_usart_rx_sta = 0;
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/* HAL库使用的串å<C2B2>£æŽ¥æ”¶ç¼“冲 */
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uint8_t g_rx_buffer[RXBUFFERSIZE];
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/* USER CODE END 0 */
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UART_HandleTypeDef huart1;
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UART_HandleTypeDef huart3;
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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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/* USER CODE BEGIN USART1_Init 0 */
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/* USER CODE END USART1_Init 0 */
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/* USER CODE BEGIN USART1_Init 1 */
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/* USER CODE END USART1_Init 1 */
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huart1.Instance = USART1;
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huart1.Init.BaudRate = 115200;
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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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huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
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huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART1_Init 2 */
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HAL_UART_Receive_IT(&huart1, (uint8_t *)g_rx_buffer, RXBUFFERSIZE);
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/* USER CODE END USART1_Init 2 */
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}
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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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/* USER CODE END USART3_Init 1 */
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huart3.Instance = USART3;
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huart3.Init.BaudRate = 115200;
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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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huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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huart3.Init.ClockPrescaler = UART_PRESCALER_DIV1;
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huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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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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if (HAL_UARTEx_SetTxFifoThreshold(&huart3, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetRxFifoThreshold(&huart3, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_DisableFifoMode(&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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HAL_UART_Receive_IT(&huart3, (uint8_t *)g_rx_buffer, RXBUFFERSIZE);
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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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RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
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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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/** Initializes the peripherals clock
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*/
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USART1;
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PeriphClkInitStruct.Usart16ClockSelection = RCC_USART16CLKSOURCE_D2PCLK2;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/* USART1 clock enable */
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__HAL_RCC_USART1_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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/**USART1 GPIO Configuration
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PA9 ------> USART1_TX
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PA10 ------> USART1_RX
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* USART1 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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/* USER CODE BEGIN USART1_MspInit 1 */
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/* USER CODE END USART1_MspInit 1 */
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}
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else 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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/** Initializes the peripherals clock
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*/
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USART3;
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PeriphClkInitStruct.Usart234578ClockSelection = RCC_USART234578CLKSOURCE_D2PCLK1;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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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|GPIO_PIN_11;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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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==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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PA9 ------> USART1_TX
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PA10 ------> USART1_RX
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*/
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HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
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/* USART1 interrupt Deinit */
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HAL_NVIC_DisableIRQ(USART1_IRQn);
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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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else 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 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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void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
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{
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if(huart->Instance == USART3) /* Èç¹ûÊÇ´®¿Ú1 */
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{
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if((g_usart_rx_sta & 0x8000) == 0) /* ½ÓÊÕδÍê³É */
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{
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if(g_usart_rx_sta & 0x4000) /* ½ÓÊÕµ½ÁË0x0d */
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{
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if(g_rx_buffer[0] != 0x0a)
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{
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g_usart_rx_sta = 0; /* ½ÓÊÕ´íÎó,ÖØÐÂ???? */
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}
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else
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{
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g_usart_rx_sta |= 0x8000; /* ½ÓÊÕÍê³É?? */
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}
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}
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else /* »¹Ã»ÊÕµ½0X0D */
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{
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if(g_rx_buffer[0] == 0x0d)
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{
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g_usart_rx_sta |= 0x4000;
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}
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else
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{
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g_usart_rx_buf[g_usart_rx_sta & 0X3FFF] = g_rx_buffer[0] ;
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g_usart_rx_sta++;
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if(g_usart_rx_sta > (USART_REC_LEN - 1))
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{
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g_usart_rx_sta = 0; /* ½ÓÊÕÊý¾Ý´íÎó,ÖØÐÂ??ʼ½Ó?? */
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}
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}
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}
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}
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HAL_UART_Receive_IT(&huart3, (uint8_t *)g_rx_buffer, RXBUFFERSIZE);
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}
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}
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/* USER CODE END 1 */
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