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» smoerijf.be » Categoriën » adev board » files » File: s/uart.h
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C code - 
  1. //*****************************************************************************
  2. //
  3. // File Name    : uart.h
  4. // Title        : Hardware UART
  5. // Author       : Smoerijf.be (Orinal by Pascal Stang - edit by smoerijf)
  6. // Target MCU   : Atmel AVR Series
  7. //
  8. //*****************************************************************************
  9. //@{
  10.  
  11. #ifndef UART_H
  12. #define UART_H
  13.  
  14. #define UART_TX               0x01
  15. #define UART_RX               0x02
  16. #define UART_FULL             0x03
  17.  
  18. // compatibility with most newer processors
  19. #ifdef UCSRB
  20.    #define UCR               UCSRB
  21. #endif
  22. // compatibility with old Mega processors
  23. #if defined(UBRR) && !defined(UBRRL)
  24.    #define   UBRRL            UBRR
  25. #endif
  26. // compatibility with megaXX8 processors
  27. #if   defined(__AVR_ATmega88__)   || \
  28.    defined(__AVR_ATmega168__)   || \
  29.    defined(__AVR_ATmega644__)
  30.    #define UDR               UDR0
  31.    #define UCR               UCSR0B
  32.    #define RXCIE            RXCIE0
  33.    #define TXCIE            TXCIE0
  34.    #define RXC               RXC0
  35.    #define TXC               TXC0
  36.    #define RXEN            RXEN0
  37.    #define TXEN            TXEN0
  38.    #define UBRRL            UBRR0L
  39.    #define UBRRH            UBRR0H
  40.    #define UCSRA             UCSR0A 
  41.    #define UDRE            UDRE0
  42.    #define SIG_UART_TRANS      SIG_USART_TRANS
  43.    #define SIG_UART_RECV      SIG_USART_RECV
  44.    #define SIG_UART_DATA      SIG_USART_DATA
  45. #endif
  46. // compatibility with mega169 processors
  47. #if   defined(__AVR_ATmega169__)
  48.    #define SIG_UART_TRANS      SIG_USART_TRANS
  49.    #define SIG_UART_RECV      SIG_USART_RECV
  50.    #define SIG_UART_DATA      SIG_USART_DATA
  51. #endif
  52. // compatibility with dual-uart processors
  53. // (if you need to use both uarts, please use the uart2 library)
  54. #if defined(__AVR_ATmega161__)
  55.    #define UDR               UDR0
  56.    #define UCR               UCSR0B
  57.    #define UBRRL            UBRR0
  58.    #define SIG_UART_TRANS      SIG_UART0_TRANS
  59.    #define SIG_UART_RECV      SIG_UART0_RECV
  60.    #define SIG_UART_DATA      SIG_UART0_DATA
  61. #endif
  62. #if defined(__AVR_ATmega162__)   || \
  63.    defined(__AVR_ATmega128__)
  64. #ifdef UART_USE_UART1
  65.    #define UDR               UDR1
  66.    #define UCR               UCSR1B
  67.    #define UBRRL            UBRR1L
  68.    #define UBRRH            UBRR1H
  69.    #define SIG_UART_TRANS      SIG_UART1_TRANS
  70.    #define SIG_UART_RECV      SIG_UART1_RECV
  71.    #define SIG_UART_DATA      SIG_UART1_DATA
  72. #else
  73.    #define UDR               UDR0
  74.    #define UCR               UCSR0B
  75.    #define UBRRL            UBRR0L
  76.    #define UBRRH            UBRR0H
  77.    #define SIG_UART_TRANS      SIG_UART0_TRANS
  78.    #define SIG_UART_RECV      SIG_UART0_RECV
  79.    #define SIG_UART_DATA      SIG_UART0_DATA
  80. #endif
  81. #endif
  82.  
  83. // functions
  84.  
  85. //! Initializes uart.
  86. /// \note   After running this init function, the processor
  87. /// I/O pins that used for uart communications (RXD, TXD)
  88. /// are no long available for general purpose I/O.
  89. void uartInit(u08 mode, u32 baud);
  90.  
  91. //! Sets the uart baud rate.
  92. /// Argument should be in bits-per-second, like \c uartSetBaudRate(9600);
  93. void uartSetBaudRate(u32 baudrate);
  94.  
  95. //! Sends a single byte over the uart.
  96. /// \note This function waits for the uart to be ready,
  97. /// therefore, consecutive calls to uartSendByte() will
  98. /// go only as fast as the data can be sent over the
  99. /// serial port.
  100. void uartSendByte(u08 data);
  101.  
  102. #endif
  103. //@}
» smoerijf.be » Categoriën » adev board » files » File: s/uart.h
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Laatste wijziging: Vr 10 April 2009, 10:44