Dave Turner / GPS

Modified AdaFruit GPS library

gps.h@0:7f20540d3281, 2015-04-08 (annotated)

Committer:
StressedDave
Date:
Wed Apr 08 19:06:39 2015 +0000
Revision:
0:7f20540d3281
Child:
1:a091e3ca8443
Baseline for MTK GPS parser

Who changed what in which revision?

UserRevisionLine numberNew contents of line
StressedDave 0:7f20540d3281 1 #ifndef GPS_H
StressedDave 0:7f20540d3281 2 #define GPS_H
StressedDave 0:7f20540d3281 3
StressedDave 0:7f20540d3281 4 #include "mbed.h"
StressedDave 0:7f20540d3281 5 #define knots_to_ms 0.514444444f
StressedDave 0:7f20540d3281 6 #define pi 3.14159265359f
StressedDave 0:7f20540d3281 7 #include "arm_math.h"
StressedDave 0:7f20540d3281 8 #include "math_helper.h"
StressedDave 0:7f20540d3281 9 #include "arm_common_tables.h"
StressedDave 0:7f20540d3281 10
StressedDave 0:7f20540d3281 11 class GPS{
StressedDave 0:7f20540d3281 12 public:
StressedDave 0:7f20540d3281 13
StressedDave 0:7f20540d3281 14 GPS(void);
StressedDave 0:7f20540d3281 15 bool parse(char *nmea);
StressedDave 0:7f20540d3281 16
StressedDave 0:7f20540d3281 17 float latitude;
StressedDave 0:7f20540d3281 18 float longitude;
StressedDave 0:7f20540d3281 19 float speed;
StressedDave 0:7f20540d3281 20 float angle;
StressedDave 0:7f20540d3281 21 uint8_t hour, minute, seconds, year, month, day;
StressedDave 0:7f20540d3281 22 uint16_t milliseconds;
StressedDave 0:7f20540d3281 23 bool fix;
StressedDave 0:7f20540d3281 24 char currentline[120];
StressedDave 0:7f20540d3281 25 uint16_t lineidx;
StressedDave 0:7f20540d3281 26 bool newSentence;
StressedDave 0:7f20540d3281 27 bool firstfix;
StressedDave 0:7f20540d3281 28
StressedDave 0:7f20540d3281 29 private:
StressedDave 0:7f20540d3281 30
StressedDave 0:7f20540d3281 31 uint16_t parseHex(char c) {
StressedDave 0:7f20540d3281 32 //Converts Hex character to value - for checksum calculation
StressedDave 0:7f20540d3281 33 if (c <= '9')
StressedDave 0:7f20540d3281 34 return c - '0';
StressedDave 0:7f20540d3281 35 if (c < 'A')
StressedDave 0:7f20540d3281 36 return 0;
StressedDave 0:7f20540d3281 37 if (c <= 'F')
StressedDave 0:7f20540d3281 38 return (c - 'A')+10;
StressedDave 0:7f20540d3281 39 return 0;
StressedDave 0:7f20540d3281 40 }
StressedDave 0:7f20540d3281 41
StressedDave 0:7f20540d3281 42 float timef;
StressedDave 0:7f20540d3281 43 bool checksum;
StressedDave 0:7f20540d3281 44 char lat, lon;
StressedDave 0:7f20540d3281 45 float mins;
StressedDave 0:7f20540d3281 46
StressedDave 0:7f20540d3281 47 };
StressedDave 0:7f20540d3281 48 #endif