Path: utzoo!mnetor!uunet!husc6!ut-sally!utastro!bigtex!james
From: james@bigtex.uucp (James Van Artsdalen)
Newsgroups: comp.sys.ibm.pc
Subject: Re: hooking PC's together
Message-ID: <903@bigtex.uucp>
Date: 7 Mar 88 10:46:55 GMT
References: <3438@cup.portal.com> <216100018@trsvax>
Organization: F.B.N. Software, Austin TX
Lines: 13

In article <216100018@trsvax>, johnm@trsvax.UUCP writes:
> I don't believe that there is any way to get the parallel port to signal you
> with an interrupt when a character comes in.

Many years ago I had to help debug a printer "spooler" (as it was called then)
that was to use interrupts on the parallel port on an IBM PC.  It turns out
that there was a design error in the IBM hardware (I can't remember but I
think maybe the interrupt was not latched), and it would lose a few interrupts
here and there, necessitating a routine on the 15.2Hz line to manually pump
the system when an interrupt was lost.
-- 
James R. Van Artsdalen    ...!uunet!utastro!bigtex!james     "Live Free or Die"
Home: 512-346-2444 Work: 328-0282; 110 Wild Basin Rd. Ste #230, Austin TX 78746