Collect/Core/Src/usart.c

/**
  ******************************************************************************
  * File Name          : USART.c
  * Description        : This file provides code for the configuration
  *                      of the USART instances.
  ******************************************************************************
  * This notice applies to any and all portions of this file
  * that are not between comment pairs USER CODE BEGIN and
  * USER CODE END. Other portions of this file, whether 
  * inserted by the user or by software development tools
  * are owned by their respective copyright owners.
  *
  * Copyright (c) 2019 STMicroelectronics International N.V. 
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without 
  * modification, are permitted, provided that the following conditions are met:
  *
  * 1. Redistribution of source code must retain the above copyright notice, 
  *    this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of STMicroelectronics nor the names of other 
  *    contributors to this software may be used to endorse or promote products 
  *    derived from this software without specific written permission.
  * 4. This software, including modifications and/or derivative works of this 
  *    software, must execute solely and exclusively on microcontroller or
  *    microprocessor devices manufactured by or for STMicroelectronics.
  * 5. Redistribution and use of this software other than as permitted under 
  *    this license is void and will automatically terminate your rights under 
  *    this license. 
  *
  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" 
  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT 
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT 
  * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "usart.h"
//#include "Dwin.h"

/* USER CODE BEGIN 0 */
#include <stdio.h>
#include <string.h>
//#include "TerminalSlave485.h"
//#include "KeySlave485.h"
//#include "CollectMaster485.h"
//#include "ScreenMaster485.h"

uint8_t usart1_rx_flag;
uint8_t usart2_rx_flag;
uint8_t usart3_rx_flag;
uint8_t usart4_rx_flag;
uint16_t rx1_len;
uint16_t rx2_len;
uint16_t rx3_len;
uint16_t rx3_len;
uint16_t rx4_len;

static uint8_t USART_RX_BUF_U1[Uart1_BUF_SIZE];   /*为UART专门开一个DMA接收存储区 2021-2-23 by Daiyf*/
//static uint8_t USART_RX_BUF_U2[Uart2_BUF_SIZE];   /*为UART2、3专门开一个DMA接收存储区 2021-4-12 by Daiyf*/
static uint8_t USART_RX_BUF_U3[Uart3_BUF_SIZE];   

uint8_t USART_RX_BUF[Uart1_BUF_SIZE];

static const char LIB_CRC_MODBUS_HI[] =
{
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
};

static const char LIB_CRC_MODBUS_LO[] =
{
    0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
    0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
    0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
    0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
    0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
    0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
    0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
    0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
    0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
    0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
    0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
    0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
    0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
    0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
    0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
    0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
    0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
    0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
    0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
    0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
    0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
    0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
    0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
    0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
    0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
    0x43, 0x83, 0x41, 0x81, 0x80, 0x40
};


uint8_t USART_TX_BUF[Uart1_BUF_SIZE];
uint8_t USART1_RX_BUF[Uart1_BUF_SIZE];
uint8_t USART1_RX_BUF002[Uart1_BUF_SIZE];
uint8_t USART1_TX_BUF[Uart1_BUF_SIZE];
uint8_t USART2_RX_BUF[Uart2_BUF_SIZE];
uint8_t USART2_TX_BUF[Uart2_BUF_SIZE];
uint8_t USART2_RX_BUF002[Uart2_BUF_SIZE];
uint8_t USART3_RX_BUF[Uart3_BUF_SIZE];
uint8_t USART3_RX_BUF002[Uart3_BUF_SIZE];
uint8_t USART3_RX_BUF002_print[Uart3_BUF_SIZE];
uint8_t USART3_TX_BUF[Uart3_BUF_SIZE];
//uint8_t UART4_RX_BUF[BUF_SIZE];
//uint8_t UART4_TX_BUF[BUF_SIZE];
/* USER CODE END 0 */

//UART_HandleTypeDef huart4;
extern UART_HandleTypeDef huart1;
extern UART_HandleTypeDef huart2;
extern UART_HandleTypeDef huart3;
//DMA_HandleTypeDef hdma_uart4_rx;
extern DMA_HandleTypeDef hdma_usart1_rx;
extern DMA_HandleTypeDef hdma_usart2_rx;
extern DMA_HandleTypeDef hdma_usart3_rx;
UART_HandleTypeDef huart4;
 
 

 
 
/* USER CODE BEGIN 1 */
uint16_t ErrorLength;
void UsartReceive_IDLE(UART_HandleTypeDef *huart)
{
    uint32_t i = 0;
    if((__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE) != RESET))
    {
        if(huart->Instance == USART1)
        {
            __HAL_UART_CLEAR_IDLEFLAG(huart);
					//	i = huart->Instance->ISR; //清除状态寄存器SR,读取SR寄存器可以实现清除SR寄存器的功能  /*这三行不要。 2021-2-23 by Daiyf*/
          //  i = huart->Instance->RDR; //读取数据寄存器中的数据
          //  i = hdma_usart1_rx.Instance->NDTR;
//						__HAL_UART_DISABLE_IT(&huart1, UART_IT_RXNE);
            HAL_UART_DMAStop(huart);
						i =  __HAL_DMA_GET_COUNTER(&hdma_usart1_rx);// 获取DMA中未传输的数据个数 
//						HAL_UART_Receive_DMA(&huart1, USART_RX_BUF,Uart1_BUF_SIZE);//重新打开DMA接收
            /* 此处处理数据，主要是拷贝和置位标志位 */
            memcpy(USART1_RX_BUF, USART_RX_BUF_U1, (Uart1_BUF_SIZE - i));  /*为UART专门开一个DMA接收存储区 2021-2-23 by Daiyf*/
            usart1_rx_flag = 1; 
            rx1_len = Uart1_BUF_SIZE - i-2;//实际接收到的有用数据,总计数减去未传输的数据个数，得到已经接收的数据个数(0x0D,0x0A)
            /* 清空缓存，重新接收 */
						ErrorLength=Uart1_BUF_SIZE;//DMA缺陷处理不定长数据时，连续数据太快导致长度异常，处理方法不用RTOS，或者不用DMA.
//						printf("%d:%s\r\n",rx1_len,USART_RX_BUF);
//						KeySlave485_Send_Data(USART_RX_BUF,rx1_len);
//						SendChar4(rx1_len);
            //memset(USART_RX_BUF_U1, 0x00, Uart1_BUF_SIZE);                                        /*这二行不要。 2021-2-23 by Daiyf*/
						//__HAL_DMA_SET_COUNTER(&hdma_usart1_rx, 0); //清除DMA 计数

						HAL_UART_Receive_DMA(&huart1, USART_RX_BUF_U1,Uart1_BUF_SIZE);//重新打开DMA接收
						if((__HAL_UART_GET_FLAG(&huart1, UART_FLAG_ORE) != RESET))
						{
//							i = huart->Instance->ISR; //清除状态寄存器SR,读取SR寄存器可以实现清除SR寄存器的功能
//							i = huart->Instance->RDR; //读取数据寄存器中的数据
//							i = hdma_usart1_rx.Instance->NDTR;
							__HAL_UART_CLEAR_OREFLAG(&huart1);
							HAL_DMA_DeInit(&hdma_usart1_rx);
						}
			}
//        else if(huart->Instance == USART2)
//        {
//            __HAL_UART_CLEAR_IDLEFLAG(huart);
////						i = huart->Instance->ISR;
////            i = huart->Instance->RDR;
////            i = hdma_usart2_rx.Instance->NDTR;
//            HAL_UART_DMAStop(huart);
//						HAL_UART_Receive_DMA(&huart2, USART_RX_BUF_U2,Uart2_BUF_SIZE); 
//            /* 此处处理数据，主要是拷贝和置位标志位 */
//			
//			
//			
//			//memcpy(USART2_RX_BUF, USART_RX_BUF, rx2_len);
//			memcpy(USART2_RX_BUF, USART_RX_BUF_U2, Uart2_BUF_SIZE - i);  //这里原来可能有点问题，改了一下与其他串口方式相同处理
//			__nop();
//			memcpy(USART2_RX_BUF, USART_RX_BUF_U2, 32);
//			__nop();
//						
//						
//						
//            usart2_rx_flag = 1;
//						rx2_len = Uart2_BUF_SIZE - i;//实际接收到的有用数据
//           // memset(USART_RX_BUF_U2, 0x00, Uart2_BUF_SIZE);    
//        }
        else if(huart->Instance == USART3)
        {
            __HAL_UART_CLEAR_IDLEFLAG(huart);
					#if 1
						HAL_UART_DMAStop(huart);
						i =  __HAL_DMA_GET_COUNTER(&hdma_usart3_rx);// 获取DMA中未传输的数据个数 
						memcpy(USART3_RX_BUF, USART_RX_BUF_U3, (Uart3_BUF_SIZE - i));
						usart3_rx_flag = 1; 
						rx3_len = Uart3_BUF_SIZE - i;
						ErrorLength=Uart3_BUF_SIZE;
						
					  	HAL_UART_Receive_DMA(&huart3, USART_RX_BUF_U3,Uart3_BUF_SIZE);//重新打开DMA接收
						if((__HAL_UART_GET_FLAG(&huart3, UART_FLAG_ORE) != RESET))
						{
//							i = huart->Instance->ISR; //清除状态寄存器SR,读取SR寄存器可以实现清除SR寄存器的功能
//							i = huart->Instance->RDR; //读取数据寄存器中的数据
//							i = hdma_usart3_rx.Instance->NDTR;
							__HAL_UART_CLEAR_OREFLAG(&huart3);
							HAL_DMA_DeInit(&hdma_usart3_rx);
						}
						
					#else
						i = huart->Instance->ISR;
			            i = huart->Instance->RDR;
			            i = hdma_usart3_rx.Instance->NDTR;
			            HAL_UART_DMAStop(huart);
									HAL_UART_Receive_DMA(&huart3, USART_RX_BUF_U3,Uart3_BUF_SIZE);  /*为UART3专门开一个DMA接收存储区 2021-4-12 by Daiyf*/
     
								 /* 此处处理数据，主要是拷贝和置位标志位 */
			            memcpy(USART3_RX_BUF, USART_RX_BUF_U3, (Uart3_BUF_SIZE - i));
			            usart3_rx_flag = 1;
			            rx3_len = Uart3_BUF_SIZE - i;//实际接收到的有用数据
					 #endif  

					
					
					
 
					
            memset(USART_RX_BUF, 0x00, BUF_SIZE);
        }
				
				/*
				else if(huart->Instance == UART4)
        {
            __HAL_UART_CLEAR_IDLEFLAG(huart);
						i = huart->Instance->ISR;
            i = huart->Instance->RDR;
            i = hdma_uart4_rx.Instance->NDTR;
            HAL_UART_DMAStop(huart);
						HAL_UART_Receive_DMA(&huart4, USART_RX_BUF,BUF_SIZE);
            //此处处理数据，主要是拷贝和置位标志位 //
            memcpy(UART4_RX_BUF, USART_RX_BUF, (BUF_SIZE - i));
            usart4_rx_flag = 1;
            rx4_len = BUF_SIZE - i;//实际接收到的有用数据
            memset(USART_RX_BUF, 0x00, BUF_SIZE);
					
						if((__HAL_UART_GET_FLAG(&huart4, UART_FLAG_ORE) != RESET))
						{
							i = huart->Instance->ISR; //清除状态寄存器SR,读取SR寄存器可以实现清除SR寄存器的功能
							i = huart->Instance->RDR; //读取数据寄存器中的数据
							i = hdma_uart4_rx.Instance->NDTR;
							__HAL_UART_CLEAR_OREFLAG(&huart4);
							HAL_DMA_DeInit(&hdma_uart4_rx);
							HAL_UART_MspInit(&huart4);
							HAL_UART_Receive_DMA(&huart4, USART_RX_BUF,BUF_SIZE);
						}
						
        }
				
				*/
    }
//		HAL_DMA_DeInit(&hdma_usart1_rx);
}
void Uart_Mode_Init(void)
{
	__HAL_UART_ENABLE_IT(&huart1, UART_IT_IDLE);
	__HAL_UART_ENABLE_IT(&huart1, UART_IT_RXNE);
	__HAL_UART_ENABLE_IT(&huart2, UART_IT_IDLE);
	__HAL_UART_ENABLE_IT(&huart2, UART_IT_RXNE);
	__HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
	__HAL_UART_ENABLE_IT(&huart3, UART_IT_RXNE);
	__HAL_UART_ENABLE_IT(&huart4, UART_IT_IDLE);
	__HAL_UART_ENABLE_IT(&huart4, UART_IT_RXNE);
 
}


/*****************************************************************
* 串口2发送函数KeySlave485_Send_Data(uint8_t *buf,uint8_t len)
******************************************************************/
void SendChar2 (uint8_t ch)
{
    HAL_UART_Transmit(&huart2, &ch, 1, 0xffff);
}
void SendChar4 (uint8_t ch)
{
		//KeySlave485_TX_Set(1);
		HAL_UART_Transmit(&huart4, &ch, 1, 1000);
		//KeySlave485_TX_Set(0);
}
/*****************************************************************
* 串口发送数组函数
******************************************************************/
void UartWrite(UART_HandleTypeDef *uartHandle, uint8_t *buf , uint8_t len)
{
    uint8_t i;
    for(i = 0; i < len; i++)
    {
        HAL_UART_Transmit(uartHandle, &buf[i], 1, 0xFFFF);
    }
}
// 重定向函数1
int fputc(int ch,FILE *f)
{
    uint8_t temp[1]={ch};
    HAL_UART_Transmit(&huart4,temp,1,2);        //
		return 0;
}

//16位modbusCRC校验
uint16_t LIB_CRC_MODBUS(uint8_t* Buf, uint16_t srLen)
{
    uint32_t srIndex;
    char ucHI = 0xFF;
    char ucLO = 0xFF;

    while(srLen--)
    {
        srIndex = ucHI ^ *Buf++;
        ucHI = ucLO ^ LIB_CRC_MODBUS_HI[srIndex];
        ucLO = LIB_CRC_MODBUS_LO[srIndex];
    }

    return ((uint16_t)ucHI<<8) + ucLO;
}





/* USER CODE END 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/