Chris Pepper / sIRFstarIII

An implementation of the Sirf Binary and NMEA Protocol for gps devices using the SiRFstarIII chipset

GpsInterface.h@0:43da35949666, 2012-06-28 (annotated)

Committer:
p3p
Date:
Thu Jun 28 21:17:29 2012 +0000
Revision:
0:43da35949666
update to baud selection

Who changed what in which revision?

UserRevisionLine numberNew contents of line
p3p 0:43da35949666 1 #ifndef SIRF_PROTOCOL_GPS_INTERFACE
p3p 0:43da35949666 2 #define SIRF_PROTOCOL_GPS_INTERFACE
p3p 0:43da35949666 3
p3p 0:43da35949666 4 #include "sIRFstarIII.h"
p3p 0:43da35949666 5
p3p 0:43da35949666 6 namespace SirfStarIII {
p3p 0:43da35949666 7
p3p 0:43da35949666 8 class GpsInterface : public SirfStarIII {
p3p 0:43da35949666 9 public:
p3p 0:43da35949666 10 GpsInterface(PinName tx, PinName rx);
p3p 0:43da35949666 11 virtual ~GpsInterface() {}
p3p 0:43da35949666 12
p3p 0:43da35949666 13 void onReceiveGeodeticNavigationData(SimpleSerialProtocol::Packet* packet);
p3p 0:43da35949666 14 void onReceiveMeasuredTrackingData(SimpleSerialProtocol::Packet* packet);
p3p 0:43da35949666 15 void onReceiveDGPSStatus(SimpleSerialProtocol::Packet* packet);
p3p 0:43da35949666 16 void onReceiveRMC(SimpleSerialProtocol::Packet* packet);
p3p 0:43da35949666 17
p3p 0:43da35949666 18 class Coordinate {
p3p 0:43da35949666 19 public:
p3p 0:43da35949666 20 Coordinate() {
p3p 0:43da35949666 21 _gps_format = 0;
p3p 0:43da35949666 22 _dec_degrees = 0;
p3p 0:43da35949666 23 _degrees = 0;
p3p 0:43da35949666 24 _minutes = 0;
p3p 0:43da35949666 25 _seconds = 0;
p3p 0:43da35949666 26 }
p3p 0:43da35949666 27 ~Coordinate() {}
p3p 0:43da35949666 28 float _gps_format;
p3p 0:43da35949666 29 char _indicator;
p3p 0:43da35949666 30 float _dec_degrees;
p3p 0:43da35949666 31 uint16_t _degrees;
p3p 0:43da35949666 32 uint16_t _minutes;
p3p 0:43da35949666 33 float _seconds;
p3p 0:43da35949666 34
p3p 0:43da35949666 35 void set(float raw, char indicator) {
p3p 0:43da35949666 36 if(indicator == '0')return;
p3p 0:43da35949666 37 if (raw < 10000) {
p3p 0:43da35949666 38 raw = raw / 100;
p3p 0:43da35949666 39 } else {
p3p 0:43da35949666 40 raw = raw / 1000;
p3p 0:43da35949666 41 }
p3p 0:43da35949666 42 _gps_format = raw;
p3p 0:43da35949666 43 _degrees = static_cast<uint16_t>(raw);
p3p 0:43da35949666 44 raw = (raw - _degrees)*100;
p3p 0:43da35949666 45 _minutes = static_cast<uint16_t>(raw);
p3p 0:43da35949666 46 _seconds = 60 * (raw - _minutes);
p3p 0:43da35949666 47 _dec_degrees = _degrees + (float)((float)_minutes/60) + (float)(_seconds/3600);
p3p 0:43da35949666 48 _indicator = indicator;
p3p 0:43da35949666 49 if(indicator == 'S' || indicator == 'W') _dec_degrees *= -1;
p3p 0:43da35949666 50 }
p3p 0:43da35949666 51
p3p 0:43da35949666 52 void operator= (float param) {
p3p 0:43da35949666 53 _dec_degrees = param;
p3p 0:43da35949666 54 }
p3p 0:43da35949666 55
p3p 0:43da35949666 56 };
p3p 0:43da35949666 57
p3p 0:43da35949666 58 struct FixData {
p3p 0:43da35949666 59 enum Type {
p3p 0:43da35949666 60 NoFix,
p3p 0:43da35949666 61 Fixed,
p3p 0:43da35949666 62 DifFix,
p3p 0:43da35949666 63 Reserved1,
p3p 0:43da35949666 64 Reserved2,
p3p 0:43da35949666 65 Reserved3,
p3p 0:43da35949666 66 DeadReckFix
p3p 0:43da35949666 67 };
p3p 0:43da35949666 68 uint8_t valid;
p3p 0:43da35949666 69 uint8_t fix_type;
p3p 0:43da35949666 70 uint8_t sats;
p3p 0:43da35949666 71 } _fix;
p3p 0:43da35949666 72
p3p 0:43da35949666 73 struct Position {
p3p 0:43da35949666 74 Coordinate longitude;
p3p 0:43da35949666 75 Coordinate latitude;
p3p 0:43da35949666 76 float altitude;
p3p 0:43da35949666 77 float speed;
p3p 0:43da35949666 78 float course;
p3p 0:43da35949666 79 uint8_t fix_type;
p3p 0:43da35949666 80 } _position;
p3p 0:43da35949666 81
p3p 0:43da35949666 82 struct Time {
p3p 0:43da35949666 83 uint16_t year;
p3p 0:43da35949666 84 uint8_t month;
p3p 0:43da35949666 85 uint8_t day;
p3p 0:43da35949666 86 uint8_t hours;
p3p 0:43da35949666 87 uint8_t minutes;
p3p 0:43da35949666 88 uint8_t seconds;
p3p 0:43da35949666 89 } _time;
p3p 0:43da35949666 90
p3p 0:43da35949666 91 };
p3p 0:43da35949666 92
p3p 0:43da35949666 93 }
p3p 0:43da35949666 94
p3p 0:43da35949666 95 #endif