christian b
Mbed library to handle GPS data reception and parsing
Dependents: GPS_U-blox_NEO-6M_Code
Features
- All positionning parameters are contained into a global data structure.
- Automatic nema string parsing and data structure update.
- GSA,GGA,VTG and RMC
- Convert latitude and longitude to decimal value.
- Converts latittude,longitude and altitude to ECEF coordinates.
Planed developement
- Test library for RTOS use.
- Complete the nema parsing decoders (couple of parameters are not parsed yet and not present in the data structure).
- Add conversion tool to get ENU coordinates.
Diff: defines/mbedGPSDefs.h
- Revision:
- 0:0c1aa5906cef
- Child:
- 2:72ac4d7044a7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/defines/mbedGPSDefs.h Wed Aug 06 01:37:39 2014 +0000
@@ -0,0 +1,85 @@
+#ifndef _MBED_GPS_DEFS_H_
+#define _MBED_GPS_DEFS_H_
+//=======================================================================
+// GPS Special caracters
+#define START_CHAR '$'
+#define END_CHAR 0x0D
+//=======================================================================
+// GPS BUFFER SIZE
+#define RX_BUFFER_SIZE 80
+//=======================================================================
+// GPS COMMANDS
+#define GPS_CMD_GPGGA "$GPGGA"
+#define GPS_CMD_GPGSA "$GPGSA"
+#define GPS_CMD_GPGSV "$GPGSV"
+#define GPS_CMD_GPRMC "$GPRMC"
+#define GPS_CMD_GPVTG "$GPVTG"
+
+//=======================================================================
+// GPS MESSAGE STRUCTURE
+typedef struct {
+ char data[RX_BUFFER_SIZE];
+ }message;
+
+//=======================================================================
+// GPS COORDINATE POINT STRUCTURES
+typedef struct{
+ double latitude;
+ double longitude;
+ float altitude;
+ }geodPoint;
+
+typedef struct{
+ double x;
+ double y;
+ double z;
+ }ECEFPoint;
+
+typedef struct{
+ float dx;
+ float dy;
+ float dz;
+ float d;
+ }ECEFDistance;
+
+typedef struct{
+ char time[7];
+ char hour;
+ char min;
+ char sec;
+ int msec;
+ }FIXtime;
+typedef struct{
+ char date[7];
+ char day;
+ char month;
+ char year;
+ }FIXDate;
+
+typedef struct{
+ double latitude;
+ char latLoc;
+ double longitude;
+ char lonLoc;
+ float GPStime;
+ char GPSStatus;
+ char FixQal;
+ float GPSAltitude;
+ float GEOIDHeight;
+
+ float TrueTrack; //Relative to true north
+ float MagneticTrack; //Relative to magnetic north
+ float GroundSpeedN;
+ float GroundSpeedK;
+
+ char TrackedSatCnt;
+
+ char mode; //A=automatic M=manual
+ char fix; //1=not valid, 2=2d, 3=3d
+
+ float PDOP,HDOP,VDOP;
+
+ FIXtime time;
+ FIXDate date;
+ }GPSInfo;
+#endif
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