Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: Notesfiles $Revision: 1.6.2.17 $; site uiucdcs.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!ihnp4!inuxc!pur-ee!uiucdcs!hohensee 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