Re: Problem with 16550 UART on IO Card

Article View: comp.sys.ibm.pc.hardware.comm

Article #13

Back to comp.sys.ibm.pc.hardware.comm Previous Next

#13

From: emmett
Date: Sat, 05 Aug 1995 10:43

28 lines
1541 bytes

In <3vurdi$k44@tornews.torolab.ibm.com>, dxer@vnet.ibm.com writes:
>Hi, all.  I just realized that I have been using a UART 8250 serial port that
>came with the motherboard of my IBM PS/1...
>
>I am deperately seeking for advice on solving this problem of mine.  Any ideas
>on this will be very much welcome.
>
>===============================================================================
>Frankie K. Sun (dxer@vnet.ibm.com)
>
>IBM Toronto Laboratory
>1150 Eglinton Ave. East
>North York, Ontario
>CANADA M3C 1H7
>

Are you using OS/2?  "Boot back to native DOS..." At any rate you are definitly 
having a configuration problem.

Make sure that your new ports are at 3E8h (COM3) and 2E8h (COM4).  The motherboard
UART addresses default to 3F8h IRQ4 (COM1) and 2F8h IRQ3(COM2).  The addresses
given will almost surely be available unless you are using a certian video card
(ATI machXX, I beleive) that uses the address given for COM3.

Lot's more to tell, good luck.

Emmett
OS/tools Inc - COMscope, COMspool, COMi

Technical Details

Message-ID: <3vvi13$eb0@srv1.sj.ablecom.net>

Path: arc1-ca.pugleaf.net!enews.sgi.com!decwrl!ablecom!usenet

References: <3vurdi$k44@tornews.torolab.ibm.com>

Show Full Headers

Complete Article Headers

Path: arc1-ca.pugleaf.net!enews.sgi.com!decwrl!ablecom!usenet
From: emmett@ablecom.net@srv1.sj.ablecom.net
Newsgroups: comp.sys.ibm.pc.hardware.comm,comp.dcom.modems
Subject: Re: Problem with 16550 UART on IO Card
Date: 5 Aug 1995 10:43:47 GMT
Organization: Able Technical Services
Message-ID: <3vvi13$eb0@srv1.sj.ablecom.net>
References: <3vurdi$k44@tornews.torolab.ibm.com>
Reply-To: emmett@ablecom.net@srv1.sj.ablecom.net
NNTP-Posting-Host: emmett.ppp.ablecom.net
X-Newsreader: IBM NewsReader/2 v1.2

Reply to Parent Message