Projects/XPLAINBridge/Lib/SoftUARTConf.h

   1 /*
   2
   3         soft_uart
   4
   5         v0.2
   6
   7         Copyright John Steggall 2009
   8
   9 */
  10
  11 /*
  12   Copyright 2009  John Steggall (steggall.j@gmail.com)
  13
  14   Permission to use, copy, modify, and distribute this software
  15   and its documentation for any purpose and without fee is hereby
  16   granted, provided that the above copyright notice appear in all
  17   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 #ifndef UART_SOFT_CONF
  34 #define UART_SOFT_CONF
  35
  36         #define BITLENGTH 833                                           // Length of data bit, worked out by F_CPU/desired baud
  37
  38         #define TXPIN 1                                                         // Port pin TX is connected to
  39         #define RXPIN 0                                                         // Port pin RX is connected to
  40
  41         /* PORT setup */
  42         #define RXPORT                  0x09                            // RX port selection
  43         #define TXPORT          0x0B                                    // TX port selection
  44         #define TXDIR_REG               0x0A                            // Data direction port for TX pin
  45
  46         /* RX pin setup */
  47         #define EXTI_FLAG_REG   0x1C
  48         #define EXTI_MASK_REG   0x1D
  49         #define EXTI_MASK_BIT   0
  50
  51         #define RX_PIN_INT              INT0_vect                       // external interrupt vector for RX pin
  52         #define RX_INT_vect             TIMER3_COMPC_vect       // interrupt vector for OCRnC
  53         #define TX_INT_vect             TIMER3_COMPB_vect       // interrupt vector for OCRnB
  54
  55         #define TC_INT_MASK_REG TIMSK3                          // interrupt timer mask register for timer(n)
  56         #define TC_COUNTL               TCNT3L                          // count high register for timer(n)
  57         #define TC_COUNTH               TCNT3H                          // count low register for timer(n)
  58
  59         /* Reciever setup */
  60         #define TC_RX_COMPEN    OCIE3C                          // interrupt enable for OCRnC (RX bit timer)
  61         #define TC_RX_COMPH             OCR3CH                          // OCRnC compare match high register
  62         #define TC_RX_COMPL             OCR3CL                          // OCRnC compare match high register
  63
  64         /* Transmitter setup */
  65         #define TC_TX_COMPEN    OCIE3B                          // interrupt enable for OCRnB (TX bit timer)
  66         #define TC_TX_COMPH             OCR3BH                          // OCRnB compare match high register
  67         #define TC_TX_COMPL             OCR3BL                          // OCRnB compare match low register
  68
  69         #define TC_CTRLB                TCCR3B                          // timer(n) control register B
  70
  71         #define TC_INTFLAG_REG  0x18                            // timer(n) interupt flag register
  72         #define TC_TX_IF_BIT    OCIE3B                          // timer(n) interrupt flag bit for OCRnB
  73         #define TC_RX_IF_BIT    OCIE3C                          // timer(n) interrupt flag bit for OCRnC
  74
  75 #endif