Communication Issue with Allsky 340

Discussion in 'Specialty Cameras SG-4, AllSky, ST-I' started by Daniel Ford, Jul 2, 2015.

  1. Daniel Ford

    Daniel Ford Cyanogen Customer

    Joined:
    Oct 12, 2014
    Messages:
    10
    I am receiving an error related to accessing Com port 2 on my Allsky 340. The error occurs at least once per day, sometimes more often. I'm using a new serial to USB dongle (US232R-10-BULK) the error is as follows with log file included. Assistance would be most appreciated:

    Unhandled exception has occurred in your application. If you click Continue, the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately.

    Access to the port `COM2` is denied

    See the end of this message for details on invoking
    just-in-time (JIT) debugging instead of this dialog box.

    ************** Exception Text **************
    System.UnauthorizedAccessException: Access to the port 'COM2' is denied.
    at System.IO.Ports.InternalResources.WinIOError(Int32 errorCode, String str)
    at System.IO.Ports.SerialStream..ctor(String portName, Int32 baudRate, Parity parity, Int32 dataBits, StopBits stopBits, Int32 readTimeout, Int32 writeTimeout, Handshake handshake, Boolean dtrEnable, Boolean rtsEnable, Boolean discardNull, Byte parityReplace)
    at System.IO.Ports.SerialPort.Open()
    at SBIG_All_Sky_Camera.SerialCommunication.WriteWCheckSum(Byte[] WriteData, Int32 Count)
    at SBIG_All_Sky_Camera.SerialCommunication.WriteWCheckSum(String WriteData)
    at SBIG_All_Sky_Camera.SerialCommunication.OpenCommunication(Byte COMPort, Int32 BaudRate, Boolean NoMessages)
    at SBIG_All_Sky_Camera.formSettings.backgroundWorkerTakeImage_DoWork(Object sender, DoWorkEventArgs e)
    at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
    at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)


    ************** Loaded Assemblies **************
    mscorlib
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3655 (GDR.050727-3600)
    CodeBase: file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
    ----------------------------------------
    SBIG All Sky Camera
    Assembly Version: 1.0.35.0
    Win32 Version: 1.0.35.0
    CodeBase: file:///C:/Program%20Files/SBIG/SBIG/SBIG%20AllSky-340/SBIG%20All%20Sky%20Camera.exe
    ----------------------------------------
    System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3645 (GDR.050727-3600)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
    ----------------------------------------
    System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3644 (GDR.050727-3600)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
    ----------------------------------------
    System.Drawing
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3644 (GDR.050727-3600)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
    ----------------------------------------
    System.Configuration
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3654 (GDR.050727-3600)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
    ----------------------------------------
    System.Xml
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3654 (GDR.050727-3600)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
    ----------------------------------------
    KellermanSoftware.NET-FTP-Library
    Assembly Version: 5.39.0.0
    Win32 Version: 5.39.0.0
    CodeBase: file:///C:/Program%20Files/SBIG/SBIG/SBIG%20AllSky-340/KellermanSoftware.NET-FTP-Library.DLL
    ----------------------------------------

    ************** JIT Debugging **************
    To enable just-in-time (JIT) debugging, the .config file for this
    application or computer (machine.config) must have the
    jitDebugging value set in the system.windows.forms section.
    The application must also be compiled with debugging
    enabled.

    For example:

    <configuration>
    <system.windows.forms jitDebugging="true" />
    </configuration>

    When JIT debugging is enabled, any unhandled exception
    will be sent to the JIT debugger registered on the computer
    rather than be handled by this dialog box.
     
  2. Doug

    Doug Staff Member

    Joined:
    Sep 25, 2014
    Messages:
    7,447
    Sounds like the driver for your USB-to-serial converter is glitching out on you. Try a different converter. If you can find one with an FTDI chipset inside they work well.
     

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