public OltProtocol()
{
Version = OltProtocolVersion.OltDiagV1;
diagRequest = OltDiagV1DataRequest;
ReadFreq = 0;
Requests = new Queue <Request>();
readThread = new BackgroundWorker {
WorkerSupportsCancellation = true
};
readThread.DoWork += readThread_DoWork;
serialPort = new SafeSerialPort("COM1", 10400, Parity.None, 8, StopBits.One)
{
WriteTimeout = 100,
ReadTimeout = 100
};
ecuSn = new byte[8];
ecuSnHashBuffer = DiagProtocolHelper.InitEcuSnHashBuffer(ecuSn, 240);
}
/// <summary>
/// Запуск опроса ЭБУ
/// </summary>
/// <returns></returns>
public bool Start()
{
IsBusy = true;
lastUpdateTime = DateTime.Now.AddSeconds(5).Ticks;
try
{
serialPort.PortName = PortName;
serialPort.BaudRate = 10400;
serialPort.Open();
serialPort.DiscardInBuffer();
serialPort.DiscardOutBuffer();
serialPort.DataReceived += DataReceivedHandler;
AddOperationLog(String.Format("Open ECU serial port: {0}", PortName));
AddOperationLog("Send start communication...");
ExecuteRequest(StartCommunication);
if (!StartCommunication.Test())
{
AddOperationLog("Error start communication");
serialPort.Close();
return(false);
}
Request startDiag;
switch (baundRate)
{
case enBaundRate.Medium:
startDiag = StartDiagnosticSessionMedium;
break;
case enBaundRate.Hi:
startDiag = StartDiagnosticSessionHi;
break;
default:
startDiag = StartDiagnosticSessionLow;
break;
}
AddOperationLog("Send start diagnostic session ...");
ExecuteRequest(startDiag);
if (!startDiag.Test())
{
AddOperationLog("Error diagnostic session");
serialPort.Close();
return(false);
}
if (baundRate != enBaundRate.Low)
{
SetBaundRate();
}
AddOperationLog("Send tester present ...");
ExecuteRequest(TesterPresent);
switch (Version)
{
case OltProtocolVersion.OltDiagV1:
AddOperationLog("Test new diag protocol support ...");
ExecuteRequest(J7esOltDiagDataRequest);
diagRequest = J7esOltDiagDataRequest.Valid ? J7esOltDiagDataRequest : OltDiagV1DataRequest;
break;
case OltProtocolVersion.OltDiagV3:
diagRequest = OltDiagV3DataRequest;
break;
case OltProtocolVersion.Euro2:
diagRequest = Euro2DiagDataRequest;
break;
case OltProtocolVersion.Rus83:
diagRequest = Rus83DiagDataRequest;
break;
}
IdleRequest = (Request)diagRequest;
Connected = true;
readThread.RunWorkerAsync();
return(true);
}
finally
{
IsBusy = false;
}
}