Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

USB to Serial Converter

  1. Jul 22, 2012 #1
    I have a Prolific USB Serial Convertor which has been assigned COM 6. When connected to a device that allows 6 serial ports it works fine. I'm now trying to communicate with a device that only allows up to COM 4, how do I reassign the USB converter to COM 4 or less?
    I'm running WINDOWS XP 2002 on a DELL laptop.
     
  2. jcsd
  3. Jul 23, 2012 #2
  4. Jul 23, 2012 #3

    MATLABdude

    User Avatar
    Science Advisor

    If you're like me and you had COM ports being enumerated starting in the double digits, the following can be used to reset the enumeration (WARNING: requires registry modification):
    http://www.bisque.com/sc/forums/p/446/430.aspx

    Or you can just manually do it, as per the post above me.
     
  5. Jul 24, 2012 #4
    Thanks guys I now have an additional problem, the ports 1 to 5 are all described as being used, how do I identify what is using the port so that I can decide which one to change?
     
  6. Jul 24, 2012 #5

    MATLABdude

    User Avatar
    Science Advisor

    If you open up the Device Manager (accessible through the Control Panel), expand the Ports section (click on the '+' sign), and then plug in your USB-serial converter, you should be able to see it get auto-detected (you may have to hit refresh).
     
  7. Jul 27, 2012 #6
    Have you upgrade windows xp to service pack 3 ?. It may be solve your problem.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: USB to Serial Converter
  1. Wireless usb (Replies: 3)

  2. Usb help (Replies: 15)

  3. Stolen USB (Replies: 5)

  4. Mini USB to Micro USB (Replies: 9)

Loading...