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Hi Pouli , something really simple to try to begin with would be to unplug the USB to your RFID reader , start the RFID Visual Basic application and in the COMM port drop down list make a note of the available ports. Close the VB application and plug in the RFID USB connector , now restart the application . The COMM port drop down list should contain a COMM port that wasn't listed previously, scroll down and highlite it then click the "Open Port" button .
If the extra port does not appear or you still get the error message post back .
Hi , the last thing that I can suggest is to reinstall the FTDI VCP drivers ( http://www.parallax.com/tabid/530/Default.aspx ) making sure not to connect the hardware until after the drivers have installed , and check out the trouble shooting doc ( http://www.parallax.com/Portals/0/Downloads/docs/prod/ftdi/USBDriverTroubleshooting-V1.0.pdf ).
If that fails try calling Parallax tech support.
Unsoundcode wrote: »
Hi mcmc2002 , I don't believe this application is any good for the reader that you have and with it being a non Parallax product I doubt if anyone on this forum will be able to help.
As for programming with Visual Studio you might want to check out the following thread , it might not help with your current project but if you have an interest in VB to micro serial comms there are some useful pointers.