Re: COM4 in TP5.5 or QC2.0

Article View: comp.os.msdos.programmer

Article #4543

Back to comp.os.msdos.programmer Previous Next

#4543

From: Greg Mushial
Date: Wed, 06 Feb 1991 01:40

11 lines
1105 bytes

> I want to do some simple serial comm over COM4, but my compilers
> (TP5.5 and QC2.0) seem to think there are only two comm ports.
> Haven't there been 4 since the AT?  Is there a way to use COM4 from
> TP5.5?

The problem/limit is not that of TP or TC, but of DOS - it only knows
of COM1 and COM2. If you wish/need to "talk" to COM3 and COM4, then
you get to do it via the hardware ports - not really a major problem -
30 lines of TP for simple communications, 600 for a COM1-4 supporting
VT100 emulator (i've just finished such).
-greg

Technical Details

Message-ID: <91036.174059GJM@SLACVM.SLAC.STANFORD.EDU>

Path:

arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!think.com!samsung!usc!elroy.jpl.nasa.gov!decwrl!shelby!unixhub!slacvm!gjm

References: <1991Feb4.205024.24159@aucs.AcadiaU.ca> <BLK.91Feb5162321@vanity.mitre.org>

Show Full Headers

Complete Article Headers

Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!think.com!samsung!usc!elroy.jpl.nasa.gov!decwrl!shelby!unixhub!slacvm!gjm
From: GJM@SLACVM.SLAC.STANFORD.EDU (Greg Mushial)
Newsgroups: comp.os.msdos.programmer
Subject: Re: COM4 in TP5.5 or QC2.0
Message-ID: <91036.174059GJM@SLACVM.SLAC.STANFORD.EDU>
Date: 6 Feb 91 01:40:59 GMT
References: <1991Feb4.205024.24159@aucs.AcadiaU.ca>
 <BLK.91Feb5162321@vanity.mitre.org>
Organization: Stanford Linear Accelerator Center
Lines: 11

Reply to Parent Message