usart(811).h 1.7 KB

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  1. /* USER CODE BEGIN Header */
  2. /**
  3. ******************************************************************************
  4. * @file usart.h
  5. * @brief This file contains all the function prototypes for
  6. * the usart.c file
  7. ******************************************************************************
  8. * @attention
  9. *
  10. * Copyright (c) 2024 STMicroelectronics.
  11. * All rights reserved.
  12. *
  13. * This software is licensed under terms that can be found in the LICENSE file
  14. * in the root directory of this software component.
  15. * If no LICENSE file comes with this software, it is provided AS-IS.
  16. *
  17. ******************************************************************************
  18. */
  19. /* USER CODE END Header */
  20. /* Define to prevent recursive inclusion -------------------------------------*/
  21. #ifndef __USART_H__
  22. #define __USART_H__
  23. #ifdef __cplusplus
  24. extern "C" {
  25. #endif
  26. /* Includes ------------------------------------------------------------------*/
  27. #include "main.h"
  28. /* USER CODE BEGIN Includes */
  29. /* USER CODE END Includes */
  30. extern UART_HandleTypeDef huart1;
  31. extern UART_HandleTypeDef huart3;
  32. /* USER CODE BEGIN Private defines */
  33. #define USART3_REC_LEN 2060 /* 定义最大接收字节数 200 */
  34. /* USER CODE END Private defines */
  35. void MX_USART1_UART_Init(void);
  36. void MX_USART3_UART_Init(void);
  37. /* USER CODE BEGIN Prototypes */
  38. 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 */
  39. extern char usart3_rx_buf2[USART3_REC_LEN]; // 第二缓冲区
  40. extern char g_usart3_rx_sta; // 接收完成标志 0x33:接收完成
  41. extern uint8_t g_usart3_rx_len;
  42. extern DMA_HandleTypeDef hdma_usart3_tx;
  43. extern DMA_HandleTypeDef hdma_usart3_rx;
  44. /* USER CODE END Prototypes */
  45. #ifdef __cplusplus
  46. }
  47. #endif
  48. #endif /* __USART_H__ */