From owner-freebsd-alpha Sun Oct 8 12:30:54 2000 Delivered-To: freebsd-alpha@freebsd.org Received: from mail.du.gtn.com (mail.du.gtn.com [194.77.9.57]) by hub.freebsd.org (Postfix) with ESMTP id C13CD37B503; Sun, 8 Oct 2000 12:30:51 -0700 (PDT) Received: from mail.cicely.de (cicely.de [194.231.9.142]) by mail.du.gtn.com (8.11.0.Beta3/8.11.0.Beta3) with ESMTP id e98JUe027692 (using TLSv1/SSLv3 with cipher EDH-RSA-DES-CBC3-SHA (168 bits) verified OK); Sun, 8 Oct 2000 21:30:44 +0200 (MET DST) Received: from cicely5.cicely.de (cicely5.cicely.de [fec0::104:200:92ff:fe9b:20e7]) by mail.cicely.de (8.11.0.Beta1/8.11.0.Beta1) with ESMTP id e98JUKh01160; Sun, 8 Oct 2000 21:30:20 +0200 (CEST) Received: (from ticso@localhost) by cicely5.cicely.de (8.11.0/8.9.2) id e98JUJa60103; Sun, 8 Oct 2000 21:30:19 +0200 (CEST) (envelope-from ticso) Date: Sun, 8 Oct 2000 21:30:19 +0200 From: Bernd Walter To: Matthew Jacob Cc: Andrew Gallatin , John Baldwin , alpha@FreeBSD.ORG Subject: Re: red face better... Message-ID: <20001008213019.C59981@cicely5.cicely.de> References: <20001008202800.B59981@cicely5.cicely.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: ; from mjacob@feral.com on Sun, Oct 08, 2000 at 11:48:52AM -0700 Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sun, Oct 08, 2000 at 11:48:52AM -0700, Matthew Jacob wrote: > On Sun, 8 Oct 2000, Bernd Walter wrote: > > > On Sun, Oct 08, 2000 at 11:01:36AM -0700, Matthew Jacob wrote: > > > > > > I only use serial consoles. I haven't debugged further this weekend because I > > > have to be at my office so I can reset the machine- I'm now looking for a > > > remote power commander I won't have to pay 700$ for (that's what the APC one > > > costs) so that I can do without sleep and debug from home. > > > > I'm using ppi on an lp interface with some relais connected to handle > > halt and reset. > > Umm- sometimes I'm slow- I assume that this is a couple lines from another > system's parallel port that you've wired directly to the reset line on your > alpha? Not directly - there is some glue hardware between such as a driver and an relais. In general the design is very simple. a simple 74ls04 to protect the port and a transistor (BC639) with an resistent between. Finaly there is an diode to protect the transitor. Directly may work, but I already had the electronic because I'm switching some outdoor light with it. The lights are switched using a mobile house telephone and an i4b solution. I call my computer and can control it via dial tones. -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message