Projects/XPLAINBridge/Lib/SoftUART.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2010  David Prentice (david.prentice [at] farming [dot] uk)
  11   Copyright 2010  Peter Danneger
  12   Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  13
  14   Permission to use, copy, modify, distribute, and sell this
  15   software and its documentation for any purpose is hereby granted
  16   without fee, provided that the above copyright notice appear in
  17   all copies and that both that the copyright notice and this
  18   permission notice and warranty disclaimer appear in supporting
  19   documentation, and that the name of the author not be used in
  20   advertising or publicity pertaining to distribution of the
  21   software without specific, written prior permission.
  22
  23   The author disclaim all warranties with regard to this
  24   software, including all implied warranties of merchantability
  25   and fitness.  In no event shall the author be liable for any
  26   special, indirect or consequential damages or any damages
  27   whatsoever resulting from loss of use, data or profits, whether
  28   in an action of contract, negligence or other tortious action,
  29   arising out of or in connection with the use or performance of
  30   this software.
  31 */
  32
  33 /** \file
  34  *
  35  *  Header file for SoftUART.c.
  36  */
  37
  38 #ifndef _SOFT_UART_
  39 #define _SOFT_UART_
  40
  41         /* Includes: */
  42                 #include <avr/io.h>
  43                 #include <avr/interrupt.h>
  44                 #include <stdbool.h>
  45
  46                 #include "../XPLAINBridge.h"
  47
  48         /* Macros: */
  49                 #define SRX        PD0
  50                 #define SRXPIN     PIND
  51                 #define SRXPORT    PORTD
  52
  53                 #define STX        PD1
  54                 #define STXPORT    PORTD
  55                 #define STXDDR     DDRD
  56
  57         /* Inline Functions: */
  58                 static inline void SoftUART_SetBaud(const uint32_t Baud)
  59                 {
  60                         uint16_t BitTime = ((F_CPU / Baud) - 1);
  61
  62                         OCR1A = BitTime;
  63                         OCR3A = BitTime;
  64                 }
  65
  66         /* Function Prototypes: */
  67                 void SoftUART_Init(void);
  68
  69 #endif