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From: hohensee@uiucdcs.UUCP
Newsgroups: net.micro.pc
Subject: Fast Communications
Message-ID: <24700083@uiucdcs.UUCP>
Date: Mon, 29-Oct-84 11:21:00 EST
Article-I.D.: uiucdcs.24700083
Posted: Mon Oct 29 11:21:00 1984
Date-Received: Wed, 31-Oct-84 00:39:45 EST
Lines: 20
Nf-ID: #N:uiucdcs:24700083:000:741
Nf-From: uiucdcs!hohensee    Oct 29 10:21:00 1984


                *** Interrupt Driven I/O ***
                          -- or --
     *** How I Tried to Chomp 960 Times a Second and Lost***

Can anyone in "note-land" offer any words of wisdom/advice on the
problem of writing interrupt-driven I/O between an IBM-PC and an RS232
communications port?  The thing I am attempting is to write an intrrpt
vector that is serviced anytime a byte arrives over the RS232 line.

In general I am trying to write a 9600 baud RS232 interface, which
"appears" to be impossible without going to an interrupt-driven
scheme.  I've tried working thru the constructs provided in CI-C86
("C"), to no avail at 9600.

Bill Hohensee
{pur-ee,ihnp4}!uiucdcs!hohensee 
          -- or --
hohensee%uiucdcs@csnet-relay