Guido Ottaviani
A porting of a GPS decoding and presenting program within the mbos RTOS. It is not a definitive application but a study program to test NMEA full decoding library and a first approach to an RTOS. Many thanks to Andrew Levido for his support and his patience on teaching me the RTOS principles from the other side of the Earth. It uses NMEA library by Tim (xtimor@gmail.com) ported by Ken Todotani (http://mbed.org/users/todotani/) on public mbed library (http://mbed.org/users/todotani/programs/GPS_nmeaLib/5yo4h) also available, as original universal C library, on http://nmea.sourceforge.net
Dependencies: mbos Watchdog TextLCD mbed ConfigFile
Diff: nmea/info.h
- Revision:
- 0:d177c0087d1f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/nmea/info.h Sun Jan 29 16:06:12 2012 +0000
@@ -0,0 +1,112 @@
+/*
+ *
+ * NMEA library
+ * URL: http://nmea.sourceforge.net
+ * Author: Tim (xtimor@gmail.com)
+ * Licence: http://www.gnu.org/licenses/lgpl.html
+ * $Id: info.h 10 2007-11-15 14:50:15Z xtimor $
+ *
+ */
+
+/*! \file */
+
+#ifndef __NMEA_INFO_H__
+#define __NMEA_INFO_H__
+
+#include "time.h"
+
+#define NMEA_SIG_BAD (0)
+#define NMEA_SIG_LOW (1)
+#define NMEA_SIG_MID (2)
+#define NMEA_SIG_HIGH (3)
+
+#define NMEA_FIX_BAD (1)
+#define NMEA_FIX_2D (2)
+#define NMEA_FIX_3D (3)
+
+#define NMEA_MAXSAT (12)
+#define NMEA_SATINPACK (4)
+#define NMEA_NSATPACKS (NMEA_MAXSAT / NMEA_SATINPACK)
+
+#define NMEA_DEF_LAT (5001.2621)
+#define NMEA_DEF_LON (3613.0595)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Position data in fractional degrees or radians
+ */
+typedef struct _nmeaPOS
+{
+ double lat; /**< Latitude */
+ double lon; /**< Longitude */
+
+} nmeaPOS;
+
+/**
+ * Information about satellite
+ * @see nmeaSATINFO
+ * @see nmeaGPGSV
+ */
+typedef struct _nmeaSATELLITE
+{
+ int id; /**< Satellite PRN number */
+ int in_use; /**< Used in position fix */
+ int elv; /**< Elevation in degrees, 90 maximum */
+ int azimuth; /**< Azimuth, degrees from true north, 000 to 359 */
+ int sig; /**< Signal, 00-99 dB */
+
+} nmeaSATELLITE;
+
+/**
+ * Information about all satellites in view
+ * @see nmeaINFO
+ * @see nmeaGPGSV
+ */
+typedef struct _nmeaSATINFO
+{
+ int inuse; /**< Number of satellites in use (not those in view) */
+ int inview; /**< Total number of satellites in view */
+ nmeaSATELLITE sat[NMEA_MAXSAT]; /**< Satellites information */
+
+} nmeaSATINFO;
+
+/**
+ * Summary GPS information from all parsed packets,
+ * used also for generating NMEA stream
+ * @see nmea_parse
+ * @see nmea_GPGGA2info, nmea_...2info
+ */
+typedef struct _nmeaINFO
+{
+ int smask; /**< Mask specifying types of packages from which data have been obtained */
+
+ nmeaTIME utc; /**< UTC of position */
+
+ int sig; /**< GPS quality indicator (0 = Invalid; 1 = Fix; 2 = Differential, 3 = Sensitive) */
+ int fix; /**< Operating mode, used for navigation (1 = Fix not available; 2 = 2D; 3 = 3D) */
+
+ double PDOP; /**< Position Dilution Of Precision */
+ double HDOP; /**< Horizontal Dilution Of Precision */
+ double VDOP; /**< Vertical Dilution Of Precision */
+
+ double lat; /**< Latitude in NDEG - +/-[degree][min].[sec/60] */
+ double lon; /**< Longitude in NDEG - +/-[degree][min].[sec/60] */
+ double elv; /**< Antenna altitude above/below mean sea level (geoid) in meters */
+ double speed; /**< Speed over the ground in kilometers/hour */
+ double direction; /**< Track angle in degrees True */
+ double declination; /**< Magnetic variation degrees (Easterly var. subtracts from true course) */
+
+ nmeaSATINFO satinfo; /**< Satellites information */
+
+} nmeaINFO;
+
+void nmea_zero_INFO(nmeaINFO *info);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __NMEA_INFO_H__ */