From owner-freebsd-hackers Sat Nov 1 20:57:36 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id UAA28467 for hackers-outgoing; Sat, 1 Nov 1997 20:57:36 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from trojanhorse.ml.org (mdean.vip.best.com [206.86.94.101]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id UAA28462 for ; Sat, 1 Nov 1997 20:57:33 -0800 (PST) (envelope-from jamil@trojanhorse.ml.org) Received: from localhost (jamil@localhost) by trojanhorse.ml.org (8.8.7/8.8.5) with SMTP id UAA00676; Sat, 1 Nov 1997 20:57:04 -0800 (PST) Date: Sat, 1 Nov 1997 20:57:03 -0800 (PST) From: "Jamil J. Weatherbee" To: =?iso-8859-1?Q?=DEor=F0ur?= Ivarsson cc: hackers@FreeBSD.ORG Subject: Re: 7400 gates effected by probe routine In-Reply-To: <345BBF14.446B9B3D@est.is> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by hub.freebsd.org id UAA28463 Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Ah... Thanks, What your'e talking about a 7401 (open collector nor) or a 7405 (open collector nand) (TTL Cookbook pg. 137), unfortunately I don't have a choice with this so I probably will just forget the probe routines. > Who does design something like this? There is another 74xx chip with > four nand gates and open collector outputs to do this, I am not sure for > how > long time this will last, but not for long, I think. > > -- > Þórður Ívarsson Thordur Ivarsson > Rafeindavirki Electronic technician > Norðurgötu 30 Nordurgotu 30 > Box 309 Box 309 > 602 Akureyri 602 Akureyri > Ísland Iceland > > --------------------------------------------- > FreeBSD has good features, > Some others are full of unwanted features! > --------------------------------------------- >