Here is a related tip.
Many MOBO's use standard 10-pin IDC headers for COM Port interfaces. You
must refer to the technical manual for your particular MOBO to see the
pinout used, but it has been my experience that most are carefully laid out
so that if you purchase an IDC, 10-pin "socket connector", a piece of 10-pin
flat ribbon cable, and a DB-9 bulkhead connector with an IDC connection on
the back (all of these parts are available at http://www.digikey.com) and
assemble them, things work out so that you have a normal COM port connector.
I haven't looked at your layout in detail, but apparently it did not conform
to this de facto standard so, as always, the user beware.
Good luck, Bob Smith
--- Avoid computer viruses, Practice safe hex ---
-- Specializing in small, cost effective
embedded control systems --
http://www.smithmachineworks.com/embedprod.html
Robert L. (Bob) Smith
Smith Machine Works, Inc.
9900 Lumlay Road
Richmond, VA 23236 804/745-1065
[EMAIL PROTECTED]
----- Original Message -----
To: "Multiple recipients of list CHIPDIR-L" <[EMAIL PROTECTED]>
Sent: Tuesday, February 10, 2004 10:14 AM
> I have found the fault..it's the serial cable. I
> though all serial connectors are
> standard for all MOBO.
> This is what I did:
> the lay-out of my 9 pin header for COM2
>
> 6 7 8 9 Blank (for reversed protection)
> +---------------+
> | * * * * |
> | * * * * * |
> +---------------+
> 1 2 3 4 5
>
> as you can see, the pins are arranged somewhat like
> the pin arrangement of DB9 connectors I thought..
> I check if pin 5 of the header is connected to ground
> and it is..
> so I decided to solder pin 1 of the header to pin1 of
> DB9,pin 2 to pin 2 and so on..
> Try it and it works!!!!
> Thanks for all your help..
>
> RhonnZ
>
>
>
> --- Uwe Zimmermann <[EMAIL PROTECTED]> wrote:
> > Hello Jaap,
> > Tuesday, February 10, 2004, 2:29:24 PM, you wrote:
> >
> > JvG> At 2004-02-08 22:19, Uwe Zimmermann wrote:
> > >>Hello Jaap,
> > >>
> > >>I admitted that I didn't read carefully enough - I
> > thought this was
> > >>clear in my second message and I certainly didn't
> > intend to be the
> > >>"wiseguy" here!
> >
> > JvG> Sorry, I read 'You should' instead of 'I
> > should'. Probably
> > JvG> because of the second 'you' in the sentence.
> >
> > JvG> Greetings,
> > JvG> Jaap
> >
> > As a native German I might be used to write too long
> > sentences. I
> > often hear this criticism ;-}
> >
> > Friends again?
> >
> > Uwe.
> >
> > --
> > Author: Uwe Zimmermann
> > INET: [EMAIL PROTECTED]
> >
> > Fat City Hosting, San Diego, California --
> > http://www.fatcity.com
> >
> ---------------------------------------------------------------------
> > To REMOVE yourself from this mailing list, send an
> > E-Mail message
> > to: [EMAIL PROTECTED] (note EXACT spelling of
> > 'ListGuru') and in
> > the message BODY, include a line containing: UNSUB
> > CHIPDIR-L
> > (or the name of mailing list you want to be removed
> > from). You may
> > also send the HELP command for other information
> > (like subscribing).
>
>
> =====
> Ronnie B. Tabanao
> Everything Electronics Services
> #06 Juan Luna St.,La Castellana,Negros Occidental
> 6131 Philippines
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Finance: Get your refund fast by filing online.
> http://taxes.yahoo.com/filing.html
> --
> Author: rhonn tabanao
> INET: [EMAIL PROTECTED]
>
> Fat City Hosting, San Diego, California -- http://www.fatcity.com
> ---------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB CHIPDIR-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).
>
--
Author: Robert Smith
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB CHIPDIR-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
