GPS

Fork of GPS by Sam Clarke

Revision:
0:697a7215cc10
Child:
1:0a034c2dbea6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GPS.h	Sat Oct 06 22:41:59 2012 +0000
@@ -0,0 +1,63 @@
+/******************************************************
+* A basic mbed library for the Adafruit ultimate      *
+* GPS module NOTE: the LOCUS functions are yet to be  *
+* implemented                                         *
+*                                                     *
+*                              Written by: Sam Clarke *
+******************************************************/
+
+#include "mbed.h"
+#include <string>
+
+#ifndef GPS_H
+#define GPS_H
+
+// EXAMPLE OUTPUTS
+//
+// $GPRMC,064951.000,A,2307.1256,N,12016.4438,E,0.03,165.48,260406,3.05,W,A*2C
+// $GPRMC, time, status, latitude, N/S, longitude, E/W, speed(knots), heading, date, N/A, N/A, MODE*CHECKSUM
+//
+// $GPGGA,064951.000,2307.1256,N,12016.4438,E,1,8,0.95,39.9,M,17.8,M,,*65
+// $GPGGA, time, latitude, N/S, longitude, E/W, fix, satellites, hdop, altitude, M, geoidal sep , M,,*CHECKSUM
+// $GPGGA, %f, %*f, %*c, %*f, %*c, %d, %d, %*f, %*f, %*c, %*f , %*c,,%*c%*c%*c0
+
+class GPS
+{
+public:
+
+    GPS(PinName tx, PinName rx);
+    void Init();
+    int parseData();
+    float time;         // UTC time
+    char validity,ns,ew;// RMC data status A = Data Valid; V = Data Not valid;
+    float latitude;     //
+    float longitude;    //
+    float speed;        // speed in knots
+    float heading;      // heading in degrees derived from previous & current location
+    int date;           //
+    int fixtype;        // 0 = no fix;  1 = fix;  2=differential fix
+    int satellites;     // number of satellites used
+    float altitude;     //
+    string fixname;
+
+private:
+
+    float trunc ( float v);
+    void getData();
+    Serial _UltimateGps;
+    char NEMA[256];
+    string posfix;
+    string diffix;
+
+};
+#endif
+
+/*
+#define 1HZ_STREAM  "$PMTK220,1000*1F\r\n"  // 1.0 second interval
+#define 5HZ_STREAM  "$PMTK220,200*2C\r\n"   // 0.2 second interval
+#define 10HZ_STREAM "$PMTK220,100*2F\r\n"   // 0.1 second interval
+
+#define OUTPUT_RMC    "$PMTK314,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29\r\n"
+#define OUTPUT_RMCGGA "$PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28\r\n"
+#define OUTPUT_OFF    "$PMTK314,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28\r\n"
+*/
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