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54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
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/*! \file nmea.h \brief NMEA protocol function library. */
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//*****************************************************************************
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//
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// File Name : 'nmea.h'
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// Title : NMEA protocol function library
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// Author : Pascal Stang - Copyright (C) 2002
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// Created : 2002.08.27
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// Revised : 2002.08.27
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// Version : 0.1
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// Target MCU : Atmel AVR Series
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// Editor Tabs : 4
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//
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// NOTE: This code is currently below version 1.0, and therefore is considered
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// to be lacking in some functionality or documentation, or may not be fully
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// tested. Nonetheless, you can expect most functions to work.
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//
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// This code is distributed under the GNU Public License
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// which can be found at http://www.gnu.org/licenses/gpl.txt
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//
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//*****************************************************************************
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#ifndef NMEA_H
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#define NMEA_H
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#include "global.h"
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#include "buffer.h"
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// constants/macros/typdefs
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#define NMEA_BUFFERSIZE 80
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// Message Codes
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#define NMEA_NODATA 0 // No data. Packet not available, bad, or not decoded
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#define NMEA_GPGGA 1 // Global Positioning System Fix Data
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#define NMEA_GPVTG 2 // Course over ground and ground speed
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#define NMEA_GPGLL 3 // Geographic position - latitude/longitude
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#define NMEA_GPGSV 4 // GPS satellites in view
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#define NMEA_GPGSA 5 // GPS DOP and active satellites
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#define NMEA_GPRMC 6 // Recommended minimum specific GPS data
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#define NMEA_UNKNOWN 0xFF// Packet received but not known
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// Debugging
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//#define NMEA_DEBUG_PKT ///< define to enable debug of all NMEA messages
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//#define NMEA_DEBUG_GGA ///< define to enable debug of GGA messages
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//#define NMEA_DEBUG_VTG ///< define to enable debug of VTG messages
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// functions
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void nmeaInit(void);
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u08* nmeaGetPacketBuffer(void);
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u08 nmeaProcess(cBuffer* rxBuffer);
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void nmeaProcessGPGGA(u08* packet);
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void nmeaProcessGPVTG(u08* packet);
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#endif
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