public void Stop()
{
switch (CommunicationState)
{
case CommunicationStates.Printing:
#if CANCEL_INJECTION
{
//Only run cancel gcode if actively printing.
string cancelGCode = ActiveSliceSettings.Instance.GetActiveValue("cancel_gcode");
WriteLineToPrinter(cancelGCode);
}
break;
#endif
{
CommunicationState = CommunicationStates.Connected;
if (sendGCodeToPrinterThread != null)
{
sendGCodeToPrinterThread.Join();
sendGCodeToPrinterThread = null;
}
ClearQueuedGCode();
ReleaseMotors();
TargetExtruderTemperature = 0;
TargetBedTemperature = 0;
}
break;
case CommunicationStates.Paused:
{
CommunicationState = CommunicationStates.Connected;
if (sendGCodeToPrinterThread != null)
{
sendGCodeToPrinterThread.Join();
sendGCodeToPrinterThread = null;
}
}
break;
case CommunicationStates.AttemptingToConnect:
CommunicationState = CommunicationStates.FailedToConnect;
connectThread.Join();
CommunicationState = CommunicationStates.Disconnecting;
if (readFromPrinterThread != null)
{
readFromPrinterThread.Join();
}
if (serialPort != null)
{
serialPort.Close();
serialPort.Dispose();
serialPort = null;
}
CommunicationState = CommunicationStates.Disconnected;
break;
case CommunicationStates.PreparingToPrint:
CommunicationState = CommunicationStates.Connected;
break;
}
}
public void PulseRtsLow()
{
if (serialPort == null && this.ActivePrinter != null)
{
serialPort = new FrostedSerialPort(this.ActivePrinter.ComPort);
serialPort.BaudRate = this.BaudRate;
if (PrinterCommunication.Instance.DtrEnableOnConnect)
{
serialPort.DtrEnable = true;
}
// Set the read/write timeouts
serialPort.ReadTimeout = 500;
serialPort.WriteTimeout = 500;
serialPort.Open();
serialPort.RtsEnable = true;
serialPort.RtsEnable = false;
try
{
Thread.Sleep(1);
}
catch
{
}
serialPort.RtsEnable = true;
serialPort.Close();
}
}
public void Disable()
{
if (PrinterIsConnected)
{
// Make sure we send this without waiting for the printer to respond. We want to try and turn off the heaters.
// It may be possible in the future to make this go into the printer queue for assured sending but it means
// the program has to be smart about closing an able to wait until the printer has agreed that it shut off
// the motors and heaters (a good idea ane something for the future).
ForceImmediateWrites = true;
ReleaseMotors();
TargetExtruderTemperature = 0;
TargetBedTemperature = 0;
FanSpeed = 0;
ForceImmediateWrites = false;
CommunicationState = CommunicationStates.Disconnecting;
if (readFromPrinterThread != null)
{
readFromPrinterThread.Join();
}
serialPort.Close();
serialPort.Dispose();
serialPort = null;
CommunicationState = CommunicationStates.Disconnected;
LinesToWriteQueue.Clear();
}
OnEnabledChanged(null);
}
void AttemptToConnect(string serialPortName, int baudRate)
{
connectionFailureMessage = "Unknown Reason";
if (PrinterIsConnected)
{
throw new Exception("You can only connect when not currently connected.");
}
CommunicationState = CommunicationStates.AttemptingToConnect;
bool serialPortIsAvailable = SerialPortIsAvailable(serialPortName);
bool serialPortIsAlreadyOpen = SerialPortAlreadyOpen(serialPortName);
if (serialPortIsAvailable && !serialPortIsAlreadyOpen)
{
serialPort = new FrostedSerialPort(serialPortName);
serialPort.BaudRate = baudRate;
//serialPort.Parity = Parity.None;
//serialPort.DataBits = 8;
//serialPort.StopBits = StopBits.One;
//serialPort.Handshake = Handshake.None;
if (PrinterCommunication.Instance.DtrEnableOnConnect)
{
serialPort.DtrEnable = true;
}
// Set the read/write timeouts
serialPort.ReadTimeout = 500;
serialPort.WriteTimeout = 500;
if (CommunicationState == CommunicationStates.AttemptingToConnect)
{
try
{
serialPort.Open();
readFromPrinterThread = new Thread(ReadFromPrinter);
readFromPrinterThread.Name = "Read From Printer";
readFromPrinterThread.IsBackground = true;
readFromPrinterThread.Start();
// let's check if the printer will talk to us
ReadPosition();
QueueLineToPrinter("M105");
QueueLineToPrinter("M115");
}
catch (System.ArgumentOutOfRangeException)
{
connectionFailureMessage = "Unsupported Baud Rate";
OnConnectionFailed(null);
}
catch (Exception e)
{
OnConnectionFailed(null);
}
}
}
}
