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dot net serial port communications

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    dot net serial port communications

    Using the example found here: http://wiki.alphasoftware.com/DotNet...%20Serial%20IO I'm trying to open a serial port...
    Code:
    [COLOR=#0600FF]
    
    dim[/COLOR] sp [COLOR=#FF8000]as[/COLOR] system::io::Ports::SerialPort 
    sp.[COLOR=#0000FF]PortName[/COLOR] [COLOR=#008000]=[/COLOR] [COLOR=#808080]"COM3"[/COLOR]   
    sp.[COLOR=#0000FF]BaudRate[/COLOR] [COLOR=#008000]=[/COLOR] 38400
    sp.[COLOR=#0000FF]Parity[/COLOR].[COLOR=#0000FF]value__[/COLOR] [COLOR=#008000]=[/COLOR] [COLOR=#FF0000]0[/COLOR]   
    sp.[COLOR=#0600FF]Open[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000])[/COLOR]
    I get an error "Access to the port 'com3' is denied.

    Com3 is working using HyperTerminal and the scanner scans to that. How do I unblock access to com3?
    Peter
    AlphaBase Solutions, LLC

    [email protected]
    https://www.alphabasesolutions.com



    #2
    Re: dot net serial port communications

    HyperTerminal was using the port when open.
    Peter
    AlphaBase Solutions, LLC

    [email protected]
    https://www.alphabasesolutions.com


    Comment


      #3
      Re: dot net serial port communications

      Has anyone implemented serial port communication w. Alpha?
      Peter
      AlphaBase Solutions, LLC

      [email protected]
      https://www.alphabasesolutions.com


      Comment


        #4
        Re: dot net serial port communications

        Hi Peter,

        Originally posted by Peter.Greulich View Post
        Has anyone implemented serial port communication w. Alpha?
        Yes, but with an active-x control, not dot net.
        Regards,

        Ira J. Perlow
        Computer Systems Design


        CSDA A5 Products
        New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
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        CSDA Code Utility
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        Comment


          #5
          Re: dot net serial port communications

          Greetings Ira,

          What ActiveX control would that be ?

          Comment


            #6
            Re: dot net serial port communications

            Originally posted by milesjg View Post
            What ActiveX control would that be ?
            Eltima Serial Port driver
            Regards,

            Ira J. Perlow
            Computer Systems Design


            CSDA A5 Products
            New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
            CSDA Barcode Functions

            CSDA Code Utility
            CSDA Screen Capture


            Comment


              #7
              Re: dot net serial port communications

              Hello I am using the same routine trying to read a ubw32 which I flashed with maximite basic and is sending a string at 2 sec intervals to my usb which listens to com10
              Eventually my ubw32 will strobe in characters from an lpt1 port which is on an emergency fire brigade device. This data goes to a printer which is now outdated.
              So instead it will be 'strobed into the ubw32 which will send it to my usb on the pc. I want Alphav11 to read it and ftp the data to a website. Sending to ftp is easy.
              To come back to your routine. Sometimes it works a little then I get an access denied error. When resetting it all it will work again for a few strings.
              I wonder if there is further documentation at hand on how to implement "system::io::serialport" stuff properly. I believe it is not that difficult. I will persist with this
              as it will give us all a handy "all in one " solution with a5v11. So Help anybody out there. Please.

              Comment


                #8
                Re: dot net serial port communications

                Goto: http://msdn.microsoft.com/en-us/libr...erialport.aspx for information about the Serial Port Class.
                Marcel

                I hear and I forget. I see and I remember. I do and I understand.
                ---- Confusius ----

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