479 lines
15 KiB
C
479 lines
15 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) 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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#include "string.h"
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#include "tim.h"
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#define USART3_RXSIZE 1024 //一帧接收数据的最大值
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#define USART3_TXSIZE 1024 //一帧发送数据的最大值
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uint8_t usart3_rx_buf[USART3_RXSIZE]; //发送数据缓冲数组
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uint8_t usart3_tx_buf[USART3_TXSIZE]; //接收数据缓冲数据
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uint8_t usart6_rx_buf[64]; //发送数据缓冲数组
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uint8_t usart6_tx_buf[64]; //接收数据缓冲数据
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int usart6_cnt = 0;
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UART_BUF usart3; //串口结构体实体
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uint8_t RxBuffer; //接收数据中间变量
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//uint8_t mfc_ins_buf[8] = {0x01,0x03,0x00,0x10,0x00,0x02,0xC5,0xCE};//读取流量计瞬时流量命令
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//uint8_t mfc_cum_buf[8] = {0x01,0x03,0x00,0x1A,0x00,0x02,0xE5,0xCC};//读取流量计累积流量命令
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//uint8_t mfc_data_buf[8];//流量计返回数组
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/* USER CODE END 0 */
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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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LL_USART_InitTypeDef USART_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* Peripheral clock enable */
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART1);
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOA);
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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 = LL_GPIO_PIN_9;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = LL_GPIO_PIN_10;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* USART1 interrupt Init */
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NVIC_SetPriority(USART1_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),2, 1));
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NVIC_EnableIRQ(USART1_IRQn);
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/* USER CODE BEGIN USART1_Init 1 */
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/* USER CODE END USART1_Init 1 */
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USART_InitStruct.BaudRate = 115200;
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USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
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USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
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USART_InitStruct.Parity = LL_USART_PARITY_NONE;
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USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;
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USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
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USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
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LL_USART_Init(USART1, &USART_InitStruct);
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LL_USART_ConfigAsyncMode(USART1);
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LL_USART_Enable(USART1);
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/* USER CODE BEGIN USART1_Init 2 */
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/* USER CODE END USART1_Init 2 */
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}
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/* USART2 init function */
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void MX_USART2_UART_Init(void)
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{
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/* USER CODE BEGIN USART2_Init 0 */
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/* USER CODE END USART2_Init 0 */
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LL_USART_InitTypeDef USART_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* Peripheral clock enable */
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_USART2);
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOD);
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/**USART2 GPIO Configuration
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PD5 ------> USART2_TX
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PD6 ------> USART2_RX
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*/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_5;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = LL_GPIO_PIN_6;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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/* USART2 DMA Init */
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/* USART2_TX Init */
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LL_DMA_SetChannelSelection(DMA1, LL_DMA_STREAM_6, LL_DMA_CHANNEL_4);
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LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_STREAM_6, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
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LL_DMA_SetStreamPriorityLevel(DMA1, LL_DMA_STREAM_6, LL_DMA_PRIORITY_LOW);
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LL_DMA_SetMode(DMA1, LL_DMA_STREAM_6, LL_DMA_MODE_CIRCULAR);
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LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_STREAM_6, LL_DMA_PERIPH_NOINCREMENT);
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LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_STREAM_6, LL_DMA_MEMORY_INCREMENT);
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LL_DMA_SetPeriphSize(DMA1, LL_DMA_STREAM_6, LL_DMA_PDATAALIGN_BYTE);
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LL_DMA_SetMemorySize(DMA1, LL_DMA_STREAM_6, LL_DMA_MDATAALIGN_BYTE);
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LL_DMA_DisableFifoMode(DMA1, LL_DMA_STREAM_6);
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/* USART2 interrupt Init */
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NVIC_SetPriority(USART2_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),2, 1));
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NVIC_EnableIRQ(USART2_IRQn);
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/* USER CODE BEGIN USART2_Init 1 */
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/* USER CODE END USART2_Init 1 */
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USART_InitStruct.BaudRate = 38400;
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USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
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USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
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USART_InitStruct.Parity = LL_USART_PARITY_NONE;
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USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;
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USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
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USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
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LL_USART_Init(USART2, &USART_InitStruct);
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LL_USART_ConfigAsyncMode(USART2);
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LL_USART_Enable(USART2);
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/* USER CODE BEGIN USART2_Init 2 */
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uart2_init();
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/* USER CODE END USART2_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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LL_USART_InitTypeDef USART_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* Peripheral clock enable */
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_USART3);
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOD);
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/**USART3 GPIO Configuration
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PD8 ------> USART3_TX
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PD9 ------> USART3_RX
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*/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_8;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = LL_GPIO_PIN_9;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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/* USART3 DMA Init */
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/* USART3_TX Init */
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LL_DMA_SetChannelSelection(DMA1, LL_DMA_STREAM_3, LL_DMA_CHANNEL_4);
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LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_STREAM_3, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
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LL_DMA_SetStreamPriorityLevel(DMA1, LL_DMA_STREAM_3, LL_DMA_PRIORITY_LOW);
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LL_DMA_SetMode(DMA1, LL_DMA_STREAM_3, LL_DMA_MODE_NORMAL);
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LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_STREAM_3, LL_DMA_PERIPH_NOINCREMENT);
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LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_STREAM_3, LL_DMA_MEMORY_INCREMENT);
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LL_DMA_SetPeriphSize(DMA1, LL_DMA_STREAM_3, LL_DMA_PDATAALIGN_BYTE);
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LL_DMA_SetMemorySize(DMA1, LL_DMA_STREAM_3, LL_DMA_MDATAALIGN_BYTE);
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LL_DMA_DisableFifoMode(DMA1, LL_DMA_STREAM_3);
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/* USART3 interrupt Init */
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NVIC_SetPriority(USART3_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 1));
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NVIC_EnableIRQ(USART3_IRQn);
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/* USER CODE BEGIN USART3_Init 1 */
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/* USER CODE END USART3_Init 1 */
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USART_InitStruct.BaudRate = 115200;
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USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
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USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
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USART_InitStruct.Parity = LL_USART_PARITY_NONE;
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USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;
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USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
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USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
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LL_USART_Init(USART3, &USART_InitStruct);
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LL_USART_ConfigAsyncMode(USART3);
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LL_USART_Enable(USART3);
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/* USER CODE BEGIN USART3_Init 2 */
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/*发送配置*/
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//设置外设地址，因为这个是DMA串口发送，
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LL_DMA_SetPeriphAddress(DMA1,LL_DMA_STREAM_3,(uint32_t)&USART3->DR);
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//使能DMA串口发送
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LL_USART_EnableDMAReq_TX(USART3);
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//使能DMA2发送完成中断
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LL_DMA_EnableIT_TC(DMA1,LL_DMA_STREAM_3);
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/* USER CODE END USART3_Init 2 */
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}
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/* USART6 init function */
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void MX_USART6_UART_Init(void)
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{
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/* USER CODE BEGIN USART6_Init 0 */
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/* USER CODE END USART6_Init 0 */
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LL_USART_InitTypeDef USART_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* Peripheral clock enable */
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART6);
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOC);
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/**USART6 GPIO Configuration
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PC6 ------> USART6_TX
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PC7 ------> USART6_RX
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*/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_6;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_8;
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LL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = LL_GPIO_PIN_7;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_8;
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LL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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/* USART6 DMA Init */
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/* USART6_RX Init */
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LL_DMA_SetChannelSelection(DMA2, LL_DMA_STREAM_1, LL_DMA_CHANNEL_5);
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LL_DMA_SetDataTransferDirection(DMA2, LL_DMA_STREAM_1, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
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LL_DMA_SetStreamPriorityLevel(DMA2, LL_DMA_STREAM_1, LL_DMA_PRIORITY_LOW);
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LL_DMA_SetMode(DMA2, LL_DMA_STREAM_1, LL_DMA_MODE_CIRCULAR);
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LL_DMA_SetPeriphIncMode(DMA2, LL_DMA_STREAM_1, LL_DMA_PERIPH_NOINCREMENT);
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LL_DMA_SetMemoryIncMode(DMA2, LL_DMA_STREAM_1, LL_DMA_MEMORY_INCREMENT);
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LL_DMA_SetPeriphSize(DMA2, LL_DMA_STREAM_1, LL_DMA_PDATAALIGN_BYTE);
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LL_DMA_SetMemorySize(DMA2, LL_DMA_STREAM_1, LL_DMA_MDATAALIGN_BYTE);
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LL_DMA_DisableFifoMode(DMA2, LL_DMA_STREAM_1);
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/* USART6_TX Init */
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LL_DMA_SetChannelSelection(DMA2, LL_DMA_STREAM_6, LL_DMA_CHANNEL_5);
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LL_DMA_SetDataTransferDirection(DMA2, LL_DMA_STREAM_6, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
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LL_DMA_SetStreamPriorityLevel(DMA2, LL_DMA_STREAM_6, LL_DMA_PRIORITY_LOW);
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LL_DMA_SetMode(DMA2, LL_DMA_STREAM_6, LL_DMA_MODE_CIRCULAR);
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LL_DMA_SetPeriphIncMode(DMA2, LL_DMA_STREAM_6, LL_DMA_PERIPH_NOINCREMENT);
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LL_DMA_SetMemoryIncMode(DMA2, LL_DMA_STREAM_6, LL_DMA_MEMORY_INCREMENT);
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LL_DMA_SetPeriphSize(DMA2, LL_DMA_STREAM_6, LL_DMA_PDATAALIGN_BYTE);
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LL_DMA_SetMemorySize(DMA2, LL_DMA_STREAM_6, LL_DMA_MDATAALIGN_BYTE);
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LL_DMA_DisableFifoMode(DMA2, LL_DMA_STREAM_6);
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/* USART6 interrupt Init */
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NVIC_SetPriority(USART6_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),2, 1));
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NVIC_EnableIRQ(USART6_IRQn);
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/* USER CODE BEGIN USART6_Init 1 */
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/* USER CODE END USART6_Init 1 */
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USART_InitStruct.BaudRate = 9600;
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USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
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USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
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USART_InitStruct.Parity = LL_USART_PARITY_NONE;
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USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;
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USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
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USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
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LL_USART_Init(USART6, &USART_InitStruct);
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LL_USART_ConfigAsyncMode(USART6);
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LL_USART_Enable(USART6);
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/* USER CODE BEGIN USART6_Init 2 */
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/*接收配置*/
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//使能空闲中断
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LL_USART_EnableIT_IDLE(USART6);
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/*发送配置*/
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//设置外设地址，因为这个是DMA串口发送，
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LL_DMA_SetPeriphAddress(DMA2,LL_DMA_STREAM_6,(uint32_t)&USART6->DR);
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//使能DMA串口发送
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LL_USART_EnableDMAReq_TX(USART6);
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//使能DMA2发送完成中断
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LL_DMA_EnableIT_TC(DMA2,LL_DMA_STREAM_6);
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LL_USART_EnableIT_RXNE(USART6); //开启接收中断
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/* USER CODE END USART6_Init 2 */
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}
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/* USER CODE BEGIN 1 */
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/*****************************重写回调函数，实现串口数据接收**********************/
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void modbus_init(void)
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{
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usart3.rx_buf = usart3_rx_buf; //接收数据变量初始化
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usart3.rx_buf_cnt = 0;
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usart3.rx_size = 0;
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usart3.rx_flag = 0;
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usart3.tx_buf = usart3_rx_buf; //发送数据变量初始化
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usart3.tx_buf_cnt = USART3_TXSIZE;
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usart3.tx_size = 0;
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LL_USART_EnableIT_RXNE(USART3); //开启接收中断
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}
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void modbus_callback(void)
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{
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if(step_cnt >= 3)
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{
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if(usart3.rx_buf_cnt >= USART3_RXSIZE-1) //接收数据量超限，错误
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{
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usart3.rx_buf_cnt = 0;
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memset(usart3.rx_buf, 0x00, sizeof(usart3.rx_buf));
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LL_USART_TransmitData8(USART3, 0xEE);
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}
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else //接收正常
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{
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RxBuffer = LL_USART_ReceiveData8(USART3);
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usart3.rx_buf[usart3.rx_buf_cnt++] = RxBuffer; //接收数据存储到rx_buf
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LL_TIM_DisableCounter(TIM7);
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LL_TIM_SetCounter(TIM7,0);//将定时器7的计数值清零后重新计数
|
||
LL_TIM_EnableCounter(TIM7);//TIM7计数使能
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
void modbus_send(USART_TypeDef *Luart,uint8_t *Tx_Buf,uint16_t Size)
|
||
{
|
||
//配置内存地址
|
||
LL_DMA_SetMemoryAddress(DMA1,LL_DMA_STREAM_3,(uint32_t)Tx_Buf);
|
||
//配置数据长度
|
||
LL_DMA_SetDataLength(DMA1,LL_DMA_STREAM_3,Size);
|
||
//使能DMA STREAM 也就是发送数据
|
||
LL_DMA_EnableStream(DMA1, LL_DMA_STREAM_3);
|
||
}
|
||
|
||
|
||
void usart2_laser_send(USART_TypeDef *Luart,uint8_t *Tx_Buf,uint16_t Size)
|
||
{
|
||
//配置内存地址
|
||
LL_DMA_SetMemoryAddress(DMA1,LL_DMA_STREAM_6,(uint32_t)Tx_Buf);
|
||
//配置数据长度
|
||
LL_DMA_SetDataLength(DMA1,LL_DMA_STREAM_6,Size);
|
||
//使能DMA STREAM 也就是发送数据
|
||
LL_DMA_EnableStream(DMA1, LL_DMA_STREAM_6);
|
||
// LL_DMA_ConfigAddresses():
|
||
}
|
||
|
||
void usart6_send(uint8_t *Tx_Buf,uint16_t Size)
|
||
{
|
||
//配置内存地址
|
||
LL_DMA_SetMemoryAddress(DMA2,LL_DMA_STREAM_6,(uint32_t)Tx_Buf);
|
||
//配置数据长度
|
||
LL_DMA_SetDataLength(DMA2,LL_DMA_STREAM_6,Size);
|
||
//使能DMA STREAM 也就是发送数据
|
||
LL_DMA_EnableStream(DMA2, LL_DMA_STREAM_6);
|
||
}
|
||
|
||
//串口接收中断回调函数，激光
|
||
void usart6_rx_cb(void)//uint8_t uart_index, uint8_t *data, uint16_t len
|
||
{
|
||
|
||
// 空闲中断，表明接收到了1帧所有的数据
|
||
if(LL_USART_IsActiveFlag_IDLE(USART6))
|
||
{
|
||
//清除空闲中断
|
||
LL_USART_ClearFlag_IDLE(USART6);
|
||
usart6_cnt = 0;
|
||
|
||
}
|
||
|
||
// Rx非空中断，表明接收到了一个字节
|
||
// 读取Rx可自动清除中断标志位
|
||
if(LL_USART_IsActiveFlag_RXNE(USART6))
|
||
{
|
||
// 如果数组长度大于设置的data最大长度，直接停止接收
|
||
if(usart6_cnt > 50)
|
||
usart6_cnt = 0; // wait for the next data
|
||
usart6_rx_buf[usart6_cnt] = LL_USART_ReceiveData8(USART6);
|
||
usart6_cnt ++;
|
||
}
|
||
}
|
||
/* USER CODE END 1 */
|