Stm32Base/Core/Inc/usart.h

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    usart.h
  * @brief   This file contains all the function prototypes for
  *          the usart.c file
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __USART_H__
#define __USART_H__

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

extern UART_HandleTypeDef huart1;

extern UART_HandleTypeDef huart3;

/* USER CODE BEGIN Private defines */
#define BaudRate_4800    (0x01)
#define BaudRate_9600    (0x02)
#define BaudRate_19200   (0x03)
#define BaudRate_38400   (0x04)
#define BaudRate_57600   (0x05)
#define BaudRate_115200  (0x06)
#define BaudRate_230400  (0x07)

#define UART_BaudRate    9600
#define UART_TRANSMIT_DATA_POOL_COUNT (128)
#define UART_RECV_DATA_POOL_COUNT     (320)  

typedef struct
{
		uint16_t  recv_len;
		uint16_t  send_len;
    uint8_t* recv_buffer;
		uint8_t* send_buffer;
		uint8_t  dmasend_count;  //ms count 
		uint8_t  res;
}UART_INFO;

extern UART_INFO  rs485_info;

void rs485_TransmitData(uint8_t *pdata, uint16_t length);
void rs485_ReceiveData(void);

/* USER CODE END Private defines */

void MX_USART1_UART_Init(void);
void MX_USART3_UART_Init(void);

/* USER CODE BEGIN Prototypes */

/* USER CODE END Prototypes */

#ifdef __cplusplus
}
#endif

#endif /* __USART_H__ */