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.
Decoders/GPVTGdecoder.hpp
- Committer:
- chris215
- Date:
- 2016-02-16
- Revision:
- 5:8a73e34b3978
- Parent:
- 4:d911d7c4e09d
File content as of revision 5:8a73e34b3978:
#include "mbed.h" #include "DecodersUtils.h" #include "mbedGPSDefs.h" #include "USBSerial.h" extern USBSerial pc; // Virtual serial port over USB void DecodeGPVTG(char * tokenStr,GPSInfo& data) { //pc.printf("VTGDecoder debug: %s\n\r",tokenStr); int parameterCount = 0; char *rest; // to point to the rest of the string after token extraction. char *token; // to point to the actual token returned. char *ptr = tokenStr; // make q point to start of hello. //token = strtok_single(ptr, ","); token = strtok_single(ptr, ","); while (token != NULL) { //pc.printf("%d:%s ",parameterCount,token); if(parameterCount == 1) data.TrueTrack = atof(token); if(parameterCount == 3) data.MagneticTrack = atof(token); if(parameterCount == 5) data.GroundSpeedN = atof(token); if(parameterCount == 7) data.GroundSpeedK = atof(token); parameterCount++; ptr = rest; // rest contains the left over part..assign it to ptr. //token = strtok_r(ptr, ",",&rest); token = strtok_single(NULL, ","); } //pc.printf("\n\r"); }