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1 | 6 | kaklik | /*! \file nmea.h \brief NMEA protocol function library. */ |
2 | //***************************************************************************** |
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3 | // |
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4 | // File Name : 'nmea.h' |
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5 | // Title : NMEA protocol function library |
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6 | // Author : Pascal Stang - Copyright (C) 2002 |
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7 | // Created : 2002.08.27 |
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8 | // Revised : 2002.08.27 |
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9 | // Version : 0.1 |
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10 | // Target MCU : Atmel AVR Series |
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11 | // Editor Tabs : 4 |
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12 | // |
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13 | // NOTE: This code is currently below version 1.0, and therefore is considered |
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14 | // to be lacking in some functionality or documentation, or may not be fully |
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15 | // tested. Nonetheless, you can expect most functions to work. |
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16 | // |
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17 | /// \ingroup driver_hw |
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18 | /// \defgroup nmea NMEA Packet Interface for GPS Receivers (nmea.c) |
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19 | /// \code #include "nmea.h" \endcode |
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20 | /// \par Overview |
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21 | /// This library parses and decodes the standard NMEA data stream from a |
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22 | /// GPS and stores the position, velocity, and time solutions in the gps.c |
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23 | /// library. |
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24 | // |
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25 | // This code is distributed under the GNU Public License |
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26 | // which can be found at http://www.gnu.org/licenses/gpl.txt |
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27 | // |
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28 | //***************************************************************************** |
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29 | |||
30 | #ifndef NMEA_H |
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31 | #define NMEA_H |
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32 | |||
33 | #include "global.h" |
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34 | #include "buffer.h" |
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35 | |||
36 | // constants/macros/typdefs |
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37 | #define NMEA_BUFFERSIZE 80 |
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38 | |||
39 | // Message Codes |
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40 | #define NMEA_NODATA 0 // No data. Packet not available, bad, or not decoded |
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41 | #define NMEA_GPGGA 1 // Global Positioning System Fix Data |
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42 | #define NMEA_GPVTG 2 // Course over ground and ground speed |
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43 | #define NMEA_GPGLL 3 // Geographic position - latitude/longitude |
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44 | #define NMEA_GPGSV 4 // GPS satellites in view |
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45 | #define NMEA_GPGSA 5 // GPS DOP and active satellites |
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46 | #define NMEA_GPRMC 6 // Recommended minimum specific GPS data |
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47 | #define NMEA_UNKNOWN 0xFF// Packet received but not known |
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48 | |||
49 | // Debugging |
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50 | //#define NMEA_DEBUG_PKT ///< define to enable debug of all NMEA messages |
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51 | //#define NMEA_DEBUG_GGA ///< define to enable debug of GGA messages |
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52 | //#define NMEA_DEBUG_VTG ///< define to enable debug of VTG messages |
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53 | |||
54 | // functions |
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55 | void nmeaInit(void); |
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56 | u08* nmeaGetPacketBuffer(void); |
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57 | u08 nmeaProcess(cBuffer* rxBuffer); |
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58 | void nmeaProcessGPGGA(u08* packet); |
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59 | void nmeaProcessGPVTG(u08* packet); |
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60 | |||
61 | #endif |
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