ogrt_defines.h

The OpenGPSRec receiver software runs on the real time operating system RTAI-Linux. It compiles with

/* ************************************************************************ 
   *                                                                      *
   *                            OpenGPS Receiver                          *
   *                                                                      *
   * -------------------------------------------------------------------- *
   *                                                                      *
   *    Module:   ogrt_defines.h                                          *
   *                                                                      *
   *   Version:   0.1                                                     *
   *                                                                      *
   *      Date:   13.10.03                                                *
   *                                                                      *
   *    Author:   C. Kelley, G. Beyerle                                   *
   *                                                                      *
   * -------------------------------------------------------------------- *
   *                                                                      *
   * Copyright (C) 2001-2003  C. Kelley, G. Beyerle                       *
   *                                                                      *
   * This program is free software; you can redistribute it and/or modify *
   * it under the terms of the GNU General Public License as published by *
   * the Free Software Foundation; either version 2 of the License, or    *
   * (at your option) any later version.                                  *
   *                                                                      *
   * This program is distributed in the hope that it will be useful,      *
   * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
   * GNU General Public License for more details.                         *
   *                                                                      *
   * You should have received a copy of the GNU General Public License    *
   * along with this program; if not, write to the Free Software          *
   * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.            *
   *                                                                      *
   * -------------------------------------------------------------------- *
   *                                                                      *
   * OpenGPS is based on Clifford Kelley's OpenSourceGPS distribution.    *
   * The OpenSourceGPS distribution can be obtained from                  *
   *             http://www.home.earthlink.net/~cwkelley                  *
   *                                                                      *
   * -------------------------------------------------------------------- *
   *                                                                      *
   *                         Real-time process                            *
   *                                                                      *
   ************************************************************************ */

/* ******************************* changes ********************************

   ************************************************************************ */

/***********************************************************************
  GPS RECEIVER (GPSRCVR) Ver. 1.02
  12 Channel All-in-View GPS Receiver Program based on 
  Mitel GP2021 chipset
  Clifford Kelley [e-mail]
  Copyright (c) 1996-2002 Clifford Kelley.  All Rights Reserved.
  This LICENSE must be included with the OGR code.
***********************************************************************/

/*
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

      CONDITIONS

1. Redistributions of GPSRCVR source code must retain the above copyright
notice, this list of conditions, and the following disclaimer.

2. Redistributions in binary form must contain the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.

3. All modifications to the source code must be clearly marked as
such.  Binary redistributions based on modified source code must be
clearly marked as modified versions in the documentation and/or other
materials provided with the distribution.

4. Notice must be given of the location of the availability of the
unmodified current source code, e.g.,
  http://www.Kelley.com/
or
  ftp://ftp.Kelley.com
in the documentation and/or other materials provided with the
distribution.

5. All advertising and published materials mentioning features or use
of this software must display the following acknowledgment:  "This
product includes software developed by Clifford Kelley and other
contributors."

6. The name of Clifford Kelley may not be used to endorse or promote
products derived from this software without specific prior written
permission.

      DISCLAIMER

This software is provided by Clifford Kelley and contributors "as is" and
any expressed or implied warranties, including, but not limited to, the
implied warranties of merchantability and fitness for a particular
purpose are disclaimed.  In no event shall Clifford Kelley or
contributors be liable for any direct, indirect, incidental, special,
exemplary, or consequential damages (including, but not limited to,
procurement of substitute goods or services; loss of use, data, or
profits; or business interruption) however caused and on any theory of
liability, whether in contract, strict liability, or tort (including
negligence or otherwise) arising in any way out of the use of this
software, even if advised of the possibility of such damage.
*/

/* ------------------------------- defines -------------------------------- */

//#define CARRIER_AIDING
// ratio of L1 carrier frq (1.5754 GHz) and code frq (1.023 MHz)
#define CARRIER_AIDING_SCALE 1540

//#define NOF_CARR_SYNC   240
//#define NOF_CARR_SYNC   100

//#define RTAI_STACK_SIZE 4000
#define RTAI_STACK_SIZE 8000

//  FIFO buffer sizes 
//#define FIFOBUFLEN_NAVBIT 10000
//#define FIFOBUFLEN_INQUAD 200000
#define FIFOBUFLEN_NAVBIT 100
#define FIFOBUFLEN_INQUAD 100

//#define TICK_PERIOD    101000    /* 0.101 ms */
#define TICK_PERIOD     252000    /* 0.252 ms */
//#define TICK_PERIOD    505000    /* 0.505 ms */
//#define TICK_PERIOD    900000    /* 1.500 ms */
//#define TICK_PERIOD    920000    /* 1.500 ms */

//#define PERIOD_COUNT    1         /* repeat every period */

#define BITPATTERN1 0x5600
#define BITPATTERN2 0x1234
#define BITPATTERN3 0x7800
#define BITPATTERN4 0x4321

//#define MODE_UNISAT 1

#define PREAMBLE  0x22c00000L  // 0x8b << 22

#define PARBIT1 0x3b1f3480L
#define PARBIT2 0x1d8f9a40L
#define PARBIT3 0x2ec7cd00L
#define PARBIT4 0x1763e680L
#define PARBIT5 0x2bb1f340L
#define PARBIT6 0x0b7a89c0L

/* --- default values --- */

#define CONFIRM_ABOVE_THRESH_MAX    8
#define CONFIRM_COUNT_MAX          10
#define PULL_IN_COUNT_MAX        1500
#define ALIGN_COUNT_MAX          1000

/* --- stop if user prg not responsive for more than 'WATCHDOG_USER_MAX' sec */
#define WATCHDOG_USER_MAX 20

/* ----------------------------- end of file ------------------------------ */