Message-ID: <36AFB7D0.BE2B8E28@montana.com>
Date: Wed, 27 Jan 1999 18:05:20 -0700
From: bowman <bowman AT montana DOT com>
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To: djgpp AT delorie DOT com
Subject: Re: DJGPP and IO Port Programming.
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Reply-To: djgpp AT delorie DOT com



Lee Marzke wrote:
> 
> If this needs to run in a dos BOX in Windows, can you do this with
> DJGPP ?
> I know talking directly to hardware is supposed to be a problem in
> Windows
> environments.

The real answer would be to write a VxD. However, Win95 will field port
i/o if there isn't a legitimate driver already attached to that port.
But, do not lose sight of the fact that Windows is mediating the call,
and precise timing is not guaranteed. I've got an Atmel 89C1051
programmer that I interface to the parallel port but there is no
critical timing involved in programming cycle.