/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    usart.h
  * @brief   This file contains all the function prototypes for
  *          the usart.c file
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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 huart2;

extern UART_HandleTypeDef huart3;

/* USER CODE BEGIN Private defines */
#define USART3_REC_LEN               (1024)         /* 定义最大接收字节数 200 */
#define USART2_REC_LEN               (200)         /* 定义最大接收字节数 200 */

/* USER CODE END Private defines */

void MX_USART1_UART_Init(void);
void MX_USART2_UART_Init(void);
void MX_USART3_UART_Init(void);

/* USER CODE BEGIN Prototypes */
extern char  g_usart3_rx_buf[USART3_REC_LEN];  /* 接收缓冲,最大USART_REC_LEN个字节.末字节为换行符 */
extern char g_usart3_rx_sta; // 接收完成标志 0x33:接收完成
extern uint8_t g_usart3_rx_len;
extern DMA_HandleTypeDef hdma_usart3_tx;
extern DMA_HandleTypeDef hdma_usart3_rx;

extern char g_usart2_rx_buf[USART2_REC_LEN];  /* 接收缓冲,最大USART_REC_LEN个字节.末字节为换行符 */
extern char g_usart2_rx_sta; 
extern uint8_t g_usart2_rx_len;
extern DMA_HandleTypeDef hdma_usart2_rx;
extern DMA_HandleTypeDef hdma_usart2_tx;

/* USER CODE END Prototypes */

#ifdef __cplusplus
}
#endif

#endif /* __USART_H__ */