Digitax 4GMCU, Technical Manual

Page: 48 / 64

The information contained here are property of DIGITAX Automotive Electronics Italy, and extremely confidential. Any disclosure, copying, distribution to third
party is strictly prohibited.
48
GPS
This application shows how to use the GPS library to interact with the GPS receiver. You can get the
position and satellites data. There is also the possibility to ask for the receiver version and the
antenna connection status.
Sample code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace Digitax.Sample.GPSTest
{
//simple application that shows how to get data from the GPS receiver
public partial class GPSTestForm : Form
{
//gps wrapper and data instances
GPS.Wrapper41. GPSWrapper _gps = new GPS.Wrapper41. GPSWrapper ();
GPS.Wrapper41. GSADATA _gsaData = new GPS.Wrapper41. GSADATA ();
GPS.Wrapper41. RMCDATA _rmcData = new GPS.Wrapper41. RMCDATA ();
GPS.Wrapper41. SatelliteData [] _satellites;
string _swVersion = "" ;
string _HwVersion = "" ;
ushort _agc = 0;
byte _antennaStatus = 0;
bool _satsUpd = false ;
bool _rmcUpd = false ;
bool _versUpd = false ;
bool _hwMonUpd = false ;
public GPSTestForm()
{
InitializeComponent();
this .C= new CancelEventHandler (GPSTestForm_Closing);
//init reciver on MDT/MCU reciver is on COM1: - ForceOne COM2:
_gps.GPSInitData( "COM1:" , 9600);
//init events and callbacks
_gps.EvGPSGSVSatellitesCa= new
GPS.Wrapper41. GPSWrapper . delGPSGSVSatellitesCallback (_gps_EvGPSGSVSatellitesCallback);
_gps.EvGPSPositionCa= new
GPS.Wrapper41. GPSWrapper . delGPSSetPositionCallback (_gps_EvGPSPositionCallback);
_gps.EvGPSUbxCallbacksAntarisHwM= new
GPS.Wrapper41. GPSWrapper . delGPSSetUbxCallbacksAntarisHwMonitor (_gps_EvGPSUbxCallbacksAntarisHwMonitor);
_gps.EvGPSUbxCallbacksAntarisV= new
GPS.Wrapper41. GPSWrapper . delGPSSetUbxCallbacksAntarisVersion (_gps_EvGPSUbxCallbacksAntarisVersion);
_gps.GPSInitPositionCallback();
_gps.GPSInitGSVSatellitesCallback();
_gps.GPSInitUbxCallbacks();
}
void _gps_EvGPSUbxCallbacksAntarisVersion( string wzSwVersion, string wzHwVersion, uint lpParam)
{
//version recived
_swVersion = wzSwVersion;
_HwVersion = wzHwVersion;
_versUpd =
true ;
UpdForm();
}
void _gps_EvGPSUbxCallbacksAntarisHwMonitor( ushort wAgcPermille, byte bAntennaStatus, byte bAntennaPower,
uint lpParam)
{
//hw monitor data recived
_agc = wAgcPermille;
_antennaStatus = bAntennaStatus;
_hwMonUpd =
true ;
UpdForm();
}
void _gps_EvGPSPositionCallback(GPS.Wrapper41. RMCDATA pRMCData, GPS.Wrapper41. GSADATA pGSAData, uint lpParam)
{
//rmc and gsa data racived
_rmcData = pRMCData;
_gsaData = pGSAData;
_rmcUpd =
true ;
UpdForm();
}
void _gps_EvGPSGSVSatellitesCallback(GPS.Wrapper41. SatelliteData [] satsData, uint lpParam)
{
//satellites data recived
_satellites = satsData;
_satsUpd =
true ;
UpdForm();
}
private delegate void delUpdForm ();
private void UpdForm()
{