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µUSB-PA5 not detected

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  • µUSB-PA5 not detected

    I have the a uLCD-24-PTU with a µUSB-PA5 microUSB Programming Adaptor connected to Windows Vista but can't get a COM port installed.

    ie. Looking at the Device Manager there is no Ports (COM & LPT).

    The uLCD-24-PTU does have the splash screen appearing.

    I have read the posts:

    And still can't find an answer.

    I have downloaded CDM 2.08.28 WHQL from The installation manual states "Connect the device to a spare USB port on your PC."

    When I do this the device is not detected and therefore I can't install the driver. Is there something else I need to install to get the uLCD-24-PTU detected?

  • #2

    Does your computer make the 'device arrival' sound when the PA5 is plugged in?

    What happens if you try it on another computer?


    • #3

      No it doesn't make the device arrival sound. I have also tried plugging it into a Windows XP (SP3) machine, which also doesnt detect the device.

      I would think that the cable is working as I do get the splash screen. I also notice that the Tx led lights up (for less than 1 second) each time I plug the cable into the PC.


      • #4

        Hmm, I'd try another cable first.

        The display only needs gnd, + 5v. The PA5 will need need the other two wires to work.

        If it still fails contact support at 4dsystems dot com dot au quoting this thread


        • #5

          Ok it seemed to be a cable problem thanks.