private void run()
{
setstate=States.Opening;
this.reset_gps_vars();
DataReceived+= new DataReceivedEventHandler(GPS_DataReceived);
if (!demomodeon)
{
if (this.autodiscovery)
{
if (!autodiscover())
{
setstate=States.Stopped;
return;
}
}
}
if (!demomodeon)
{
if (!isconnecteddevice())
{
OnError(null,"Com Port "+comport+" Is Not On Device","");
setstate=States.Stopped;
return;
}
if (state!=States.AutoDiscovery)
{
DetailedPortSettings portSettings = new HandshakeNone();
cp = new Port(comport,portSettings);
cp.Settings.BaudRate=this.baudrate;
cp.RThreshold=64;
cp.InputLen=1;
try
{
cp.Open();
}
catch (Exception e)
{
OnError(e,"Could Not Open Com Port "+comport,"");
cp.Dispose();
setstate=States.Stopped;
return;
}
cp.OnError+=new Port.CommErrorEvent(cp_OnError);
cp.DataReceived+=new Port.CommEvent(cp_DataReceived);
}
}
if (state==States.Opening || state==States.AutoDiscovery)
setstate=States.Running;
if (demomodeon)
{
load_demo_data();
}
else
{
while (state==States.Running)
{
Thread.Sleep(10);
}
if (cp.IsOpen) cp.Close();
cp.Dispose();
cp=null;
}
setstate=States.Stopped;
}
/// <summary>
/// Auto discover our GPS
/// </summary>
/// <returns>True if we have found a GPS</returns>
private bool autodiscover()
{
Type searchbauds = typeof(OpenNETCF.IO.Serial.BaudRates);
// get a list of devices
foreach (string port in this.devices())
{
foreach (OpenNETCF.IO.Serial.BaudRates bauds in OpenNETCF.EnumEx.GetValues(searchbauds))
{
if ((bauds >= minbaudrate) && (bauds <= maxbaudrate))
{
// initialize the port like in run proc
DetailedPortSettings portSettings = new HandshakeNone();
cp = new Port(port,portSettings);
cp.Settings.BaudRate = bauds;
cp.RThreshold=64;
cp.InputLen=1;
OnAutoDiscovery( OpenNETCF.IO.Serial.GPS.AutoDiscoverStates.Testing,port,cp.Settings.BaudRate);
try
{
cp.Open();
}
catch
{
OnAutoDiscovery(OpenNETCF.IO.Serial.GPS.AutoDiscoverStates.FailedToOpen,port,cp.Settings.BaudRate);
}
if (cp.IsOpen)
{
// if port open, invoke cp_DataReceived if bytes occur
cp.DataReceived+=new Port.CommEvent(cp_DataReceived);
if (state==States.Opening)
setstate=States.Running;
int cpt=0;
while (state==States.Running && cpt <= 100)
{
// wait 1 seconds for the sentences
Thread.Sleep(10);
cpt++;
}
if (state==States.AutoDiscovery)
{
OnAutoDiscovery(OpenNETCF.IO.Serial.GPS.AutoDiscoverStates.Opened,port,cp.Settings.BaudRate);
comport = port;
baudrate = cp.Settings.BaudRate;
autodiscovery=false;
return true;
}
else
{
cp.Close();
setstate=States.Opening;
}
OnAutoDiscovery(OpenNETCF.IO.Serial.GPS.AutoDiscoverStates.Failed,port,cp.Settings.BaudRate);
}
cp.Dispose();
cp=null;
}
}
}
// default values
OnAutoDiscovery(OpenNETCF.IO.Serial.GPS.AutoDiscoverStates.NoGPSDetected,comport,baudrate);
autodiscovery=false;
return false;
}
