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- Path: thor.atcon.com!usenet
- From: lowes@MAIL.ATCON.COM (Peter Lowes)
- Newsgroups: comp.dcom.modems,comp.os.msdos.misc,comp.sys.ibm.pc.hardware.comm
- Subject: Re: HELP PLS, question on com port data reported by MSD
- Date: Sun, 24 Mar 1996 02:56:49 GMT
- Organization: Atlantic Connect
- Message-ID: <4j2dpq$2um@thor.atcon.com>
- References: <4it1a2$qg7@castle.nando.net>
- NNTP-Posting-Host: ts3-d82.hfx.atcon.com
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-
- jcnaylor@nando.net (John Naylor) wrote:
-
-
-
- >I have been working with someone that is having a problem with
- >Windows 3.1 trying to start ANY app using COM2 (his internal modem).
- >The Win error message is the one about "com port is invalid or in
- >use". No other Win (or DOS) app is running. The reason for the
- >error is NOT obvious to me. I do not have physical access to the
- >machine. PD has been by e-mail.
-
- >Running MSD in DOS shows expected machine config:
- >Older (circa '92) 386 PC/AT clone, MSDOS 6.2
- >com1 at 03F8, IRQ 4
- >com2 at 02F8, IRQ 3
- >The machine has a pretty basic config, and no i/o address or IRQ
- >conflicts are apparent. There is a Logitech PS/2 mouse, game
- >adapter, VGA graphics card, one (1) hard drive, one printer (LPT1
- >at 0378, irq 7).
-
- >In the MSD report, 'COM Ports' section, under COM2: column, the
- >following couple of odd things (odd to me) appear ...
- >Port Address 02F8H
- >Baud Rate 1
- >Parity None
- >Data Bits 5
- >Stop Bits 1
- >etc. (everything else as expected)
-
- >What is the deal with baud rate=1 and data bits=5 ?? Does anyone
- >know where MSD pulls these values from? BIOS data area? A query to
- >the serial port? There is some 'evidence' these values change
- >occasionally (seen by running MSD now and then) for 'no reason'
- >(where quoted words denote possible, 'tho unintended, BS).
-
- >Any insight wrt the Win com2 problem or the reported MSD com2 values
- >will be appreciated. Please post the newsgroup and/or reply by mail,
- >whatever is most convenient. TIA.
-
- I recently downloaded a product from "http//comminfo.com" that claims
- to do an analysis of the serial port configuration. To be honest I
- haven't tried running it yet but the documentation makes it sound like
- the very tool that you need.
-
- Peter Lowes
-
-
-