Re: Help setting up COM port

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Chris A. Kusmierz (cakusmierz_at_adelphia.net)
Date: 11/20/04


Date: Sat, 20 Nov 2004 13:10:25 -0500

Did you look in device manager and see if there is a serial pointing device
installed? XP has habit of misinterpreting data from a GPS as if it were a
serial pointing device. At which point it installs the drivers and hands
over the port, preventing anything else from using the port.

"Mike E" <MikeE@discussions.microsoft.com> wrote in message
news:C4245876-F631-4EBD-A22B-4FC4C5E7EABE@microsoft.com...
> Chris,
>
> Hyperterminal reports that another program is using the device, with or
> without the loopback plug.
>
> There is no device loaded as the system is not seeing the device when
> booting. But then, it never did. It was the mapping software that detects
the
> port the GPS is connected.
>
> Haggis,
>
> I first uninstalled the COM2 and COM4 ports I had created with 'add new
> hardware.'
>
> Then I changed the port for the modem to COM2.
>
> Then I disabled the modem on COM2.
>
> Nothing helped.
>
> System Information and Device Manager show COM1 working. Comdisable shows
> only COM1, working.
>
> Mike
>
>
>
> "Chris Kusmierz" wrote:
>
> > Click Start->Programs->Accessories->Communication->Hyperterminal
> >
> > Choose to connect directly to comm port1 with any settings, no
handshaking.
> > Type in the terminal windows. Characters should not display unless the
> > loopback connector is in place. Plug it in type. Unplug it and
type..etc..
> >
> > If you get an error that the port is already open, go into device
manager
> > and disable the serial pointing device XP installed when you booted up
with
> > the GPS attatched. Try again.
> >
> > HTH
> > Chris A. Kusmierz
> >
> > "Mike E" <MikeE@discussions.microsoft.com> wrote in message
> > news:ABAC3DD0-DB3B-4A0F-8610-1D090E83BE07@microsoft.com...
> > > I have the connector. Came with some diagnostic package a few years
ago.
> > >
> > > But I'm not sure I know how to use it to test the port.
> > >
> > > Mike
> > >
> > > "Opa" wrote:
> > >
> > > > First check the physical COM1 port. You will need a loop-back test
> > > > connector. You will find it here:
> > > > http://www.lammertbies.nl/comm/cable/nl_RS-232.html
> > > > Click on the British/American flag to convert the page to english.
> > > >
> > > > "Mike E" <Mike E@discussions.microsoft.com> schreef in bericht
> > > > news:4C4A7FD9-AFBA-4386-9535-7E6D58252381@microsoft.com...
> > > > >I have a Garmin GPS that connects to the PC with a serial interface
> > cable.
> > > > >
> > > > > My PC has one DB9, but I have never been able to use the GPS with
this
> > > > > computer. I was successful using it with my old W98 machine and it
> > works
> > > > > fine
> > > > > on my W2000 workstation at work.
> > > > >
> > > > > My PC simply doesn't see the device attached. I will add that it
was
> > the
> > > > > mapping software that would 'find' the attached GPS.
> > > > >
> > > > > Device Mgr showed COM1 and the internal modem uses COM3. I added
COM2
> > and
> > > > > COM4 using 'add new hardware'. Configured them using resources and
> > IRQ's
> > > > > so
> > > > > that it shows no conflict.
> > > > >
> > > > > However, Dev Mgr shows the 'black ! on yellow' icon indicating a
> > problem
> > > > > and
> > > > > both show 'Code 10'.
> > > > >
> > > > > This problem predates the installation of SP2.
> > > > >
> > > > > This is where my knowledge ends. Will appreciate any help on
getting
> > the
> > > > > new
> > > > > COM ports working.
> > > > >
> > > > > Mike E
> > > >
> > > >
> > > >
> >
> >
> >



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