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uart_communication.h

uart_communication.h 2.2 KB
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  1. /**********************************
    2. 

  2.  * 文件名称: uart_communication.h
    3. 

  3.  * 功能描述: 串口通信头文件
    4. 

  4.  **********************************/
    5. 

  5. #ifndef __UART_COMMUNICATION_H_
    6. 

  6. #define __UART_COMMUNICATION_H_
    7. 

  7. 

  8. 

  9. //============================== UART 通信配置 ==============================
    10. 

  10. // USART1 使用 PB6(TX)和PB7(RX)
    11. 

  11. 

  12. // 串口选择
    13. 

  13. #define UART_COMM               USART1
    14. 

  14. #define UART_COMM_CLK           RCC_APB2Periph_USART1
    15. 

  15. #define UART_COMM_IRQ           USART1_IRQn
    16. 

  16. 

  17. // TX 引脚 (PB6)
    18. 

  18. #define UART_COMM_TX_PIN        GPIO_Pin_6
    19. 

  19. #define UART_COMM_TX_GPIO_PORT  GPIOB
    20. 

  20. #define UART_COMM_TX_GPIO_CLK   RCC_AHB1Periph_GPIOB
    21. 

  21. #define UART_COMM_TX_SOURCE     GPIO_PinSource6
    22. 

  22. #define UART_COMM_TX_AF         GPIO_AF_USART1
    23. 

  23. 

  24. // RX 引脚 (PB7)
    25. 

  25. #define UART_COMM_RX_PIN        GPIO_Pin_7
    26. 

  26. #define UART_COMM_RX_GPIO_PORT  GPIOB
    27. 

  27. #define UART_COMM_RX_GPIO_CLK   RCC_AHB1Periph_GPIOB
    28. 

  28. #define UART_COMM_RX_SOURCE     GPIO_PinSource7
    29. 

  29. #define UART_COMM_RX_AF         GPIO_AF_USART1
    30. 

  30. 

  31. // 波特率
    32. 

  32. #define UART_BAUDRATE           2000000
    33. 

  33. 

  34. // 发送接收缓冲区大小
    35. 

  35. #define UART_BUFFER_SIZE        256
    36. 

  36. 

  37. // DMA 配置
    38. 

  38. #define UART_DMA_TX_STREAM      DMA2_Stream7
    39. 

  39. #define UART_DMA_TX_CHANNEL     DMA_Channel_4
    40. 

  40. #define UART_DMA_TX_IRQn        DMA2_Stream7_IRQn
    41. 

  41. #define UART_DMA_TX_IRQHandler  DMA2_Stream7_IRQHandler
    42. 

  42. 

  43. #define UART_DMA_RX_STREAM      DMA2_Stream5
    44. 

  44. #define UART_DMA_RX_CHANNEL     DMA_Channel_4
    45. 

  45. #define UART_DMA_RX_IRQn        DMA2_Stream5_IRQn
    46. 

  46. #define UART_DMA_RX_IRQHandler  DMA2_Stream5_IRQHandler
    47. 

  47. 

  48. #define UART_DMA_CLK            RCC_AHB1Periph_DMA2
    49. 

  49. 

  50. // 全局变量声明
    51. 

  51. extern volatile uint16_t com1_rx_len;
    52. 

  52. extern volatile uint8_t com1_recv_end_flag;
    53. 

  53. extern uint8_t com1_rx_buffer[];
    54. 

  54. extern uint8_t DMA_USART1_TX_BUF[];
    55. 

  55. 

  56. // 函数声明
    57. 

  57. extern void uart_communication_init(void);
    58. 

  58. extern void uart_send_data(uint8_t *data, uint16_t length);
    59. 

  59. extern void uart_send_float(float value);
    60. 

  60. extern void uart_send_int(int32_t value);
    61. 

  61. extern void uart_send_char(uint8_t ch);
    62. 

  62. extern void uart_send_string(char *str);
    63. 

  63. extern void DMA_USART_COMM_Send(uint8_t *data, uint16_t size);
    64. 

  64. extern uint8_t uart_is_data_available(void);
    65. 

  65. extern uint16_t uart_get_received_data(uint8_t *buffer, uint16_t max_len);
    66. 

  66. 

  67. #endif /* __UART_COMMUNICATION_H_ */
    68.