Tyler Weaver / HARP3

Generation 3 of the Harp project

Dependencies:   Servo TMP36 GZ buffered-serial1 chan_fatfs_sd nmea_parser watchdog mbed-rtos mbed

Fork of HARP2 by Tyler Weaver

GPS/GPS.h@5:8444ec4245e7, 2012-02-23 (annotated)

Committer:
tylerjw
Date:
Thu Feb 23 05:40:54 2012 +0000
Revision:
5:8444ec4245e7
Parent:
4:d47805009bbd
Child:
6:204487243310
0.3 - openLog working and nmea files convert to earth files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tylerjw 0:ce5f06c3895f 1 #include "mbed.h"
tylerjw 5:8444ec4245e7 2 #include "openLog.h"
tylerjw 0:ce5f06c3895f 3
tylerjw 0:ce5f06c3895f 4 #ifndef MBED_GPS_H
tylerjw 0:ce5f06c3895f 5 #define MBED_GPS_H
tylerjw 0:ce5f06c3895f 6
tylerjw 1:2ace7946a246 7 #define NO_LOCK 1
tylerjw 1:2ace7946a246 8 #define NOT_PARSED 2
tylerjw 3:9cba44dd2f2b 9 #define GGA 3
tylerjw 3:9cba44dd2f2b 10 #define GLL 4
tylerjw 3:9cba44dd2f2b 11 #define RMC 5
tylerjw 3:9cba44dd2f2b 12 #define VTG 6
tylerjw 1:2ace7946a246 13
tylerjw 0:ce5f06c3895f 14 /** A GPS interface for reading from a Globalsat EM-406 GPS Module */
tylerjw 0:ce5f06c3895f 15 class GPS {
tylerjw 0:ce5f06c3895f 16 public:
tylerjw 0:ce5f06c3895f 17
tylerjw 0:ce5f06c3895f 18 /** Create the GPS interface, connected to the specified serial port
tylerjw 0:ce5f06c3895f 19 */
tylerjw 0:ce5f06c3895f 20 GPS(PinName tx, PinName rx);
tylerjw 0:ce5f06c3895f 21
tylerjw 0:ce5f06c3895f 22 /** Sample the incoming GPS data, returning whether there is a lock
tylerjw 0:ce5f06c3895f 23 *
tylerjw 0:ce5f06c3895f 24 * @return 1 if there was a lock when the sample was taken (and therefore .longitude and .latitude are valid), else 0
tylerjw 0:ce5f06c3895f 25 */
tylerjw 0:ce5f06c3895f 26 int sample();
tylerjw 0:ce5f06c3895f 27 float get_nmea_longitude();
tylerjw 0:ce5f06c3895f 28 float get_nmea_latitude();
tylerjw 0:ce5f06c3895f 29 float get_dec_longitude();
tylerjw 0:ce5f06c3895f 30 float get_dec_latitude();
tylerjw 0:ce5f06c3895f 31 float get_msl_altitude();
tylerjw 3:9cba44dd2f2b 32 float get_course_t();
tylerjw 3:9cba44dd2f2b 33 float get_course_m();
tylerjw 3:9cba44dd2f2b 34 float get_speed_k();
tylerjw 3:9cba44dd2f2b 35 float get_speed_km();
tylerjw 0:ce5f06c3895f 36 int get_satelites();
tylerjw 0:ce5f06c3895f 37
tylerjw 4:d47805009bbd 38 #ifdef OPEN_LOG
tylerjw 5:8444ec4245e7 39 void start_log(void);
tylerjw 4:d47805009bbd 40 void new_file(void);
tylerjw 4:d47805009bbd 41 void stop_log(void);
tylerjw 4:d47805009bbd 42 #endif
tylerjw 0:ce5f06c3895f 43
tylerjw 0:ce5f06c3895f 44 private:
tylerjw 0:ce5f06c3895f 45 float nmea_to_dec(float, char);
tylerjw 0:ce5f06c3895f 46 float trunc(float v);
tylerjw 0:ce5f06c3895f 47 void getline();
tylerjw 0:ce5f06c3895f 48
tylerjw 0:ce5f06c3895f 49 Serial _gps;
tylerjw 5:8444ec4245e7 50 char msg[1024];
tylerjw 4:d47805009bbd 51 bool is_logging;
tylerjw 4:d47805009bbd 52 #ifdef OPEN_LOG
tylerjw 4:d47805009bbd 53 Logger _openLog;
tylerjw 4:d47805009bbd 54 #endif
tylerjw 0:ce5f06c3895f 55 // calculated values
tylerjw 0:ce5f06c3895f 56 float dec_longitude;
tylerjw 0:ce5f06c3895f 57 float dec_latitude;
tylerjw 0:ce5f06c3895f 58
tylerjw 0:ce5f06c3895f 59 // GGA - Global Positioning System Fixed Data
tylerjw 0:ce5f06c3895f 60 float nmea_longitude;
tylerjw 0:ce5f06c3895f 61 float nmea_latitude;
tylerjw 0:ce5f06c3895f 62 float utc_time;
tylerjw 0:ce5f06c3895f 63 char ns, ew;
tylerjw 0:ce5f06c3895f 64 int lock;
tylerjw 0:ce5f06c3895f 65 int satelites;
tylerjw 0:ce5f06c3895f 66 float hdop;
tylerjw 0:ce5f06c3895f 67 float msl_altitude;
tylerjw 0:ce5f06c3895f 68 char msl_units;
tylerjw 0:ce5f06c3895f 69
tylerjw 0:ce5f06c3895f 70 // RMC - Recommended Minimmum Specific GNS Data
tylerjw 0:ce5f06c3895f 71 char rmc_status;
tylerjw 2:0c9ade531a5b 72 float speed_k;
tylerjw 2:0c9ade531a5b 73 float course_d;
tylerjw 0:ce5f06c3895f 74 int date;
tylerjw 2:0c9ade531a5b 75
tylerjw 2:0c9ade531a5b 76 // GLL
tylerjw 2:0c9ade531a5b 77 char gll_status;
tylerjw 2:0c9ade531a5b 78
tylerjw 2:0c9ade531a5b 79 // VTG - Course over ground, ground speed
tylerjw 2:0c9ade531a5b 80 float course_t; // ground speed true
tylerjw 2:0c9ade531a5b 81 char course_t_unit;
tylerjw 2:0c9ade531a5b 82 float course_m; // magnetic
tylerjw 2:0c9ade531a5b 83 char course_m_unit;
tylerjw 2:0c9ade531a5b 84 char speed_k_unit;
tylerjw 2:0c9ade531a5b 85 float speed_km; // speek km/hr
tylerjw 2:0c9ade531a5b 86 char speed_km_unit;
tylerjw 0:ce5f06c3895f 87 };
tylerjw 0:ce5f06c3895f 88
tylerjw 0:ce5f06c3895f 89 #endif