From owner-freebsd-current Mon Jan 13 00:15:19 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id AAA27557 for current-outgoing; Mon, 13 Jan 1997 00:15:19 -0800 (PST) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id AAA27552 for ; Mon, 13 Jan 1997 00:15:16 -0800 (PST) Received: (from msmith@localhost) by genesis.atrad.adelaide.edu.au (8.8.2/8.7.3) id SAA16719; Mon, 13 Jan 1997 18:44:47 +1030 (CST) From: Michael Smith Message-Id: <199701130814.SAA16719@genesis.atrad.adelaide.edu.au> Subject: Re: multiple 2842 controllers In-Reply-To: <199701130732.SAA10914@asstdc.scgt.oz.au> from michael butler at "Jan 13, 97 06:32:10 pm" To: imb@scgt.oz.au (michael butler) Date: Mon, 13 Jan 1997 18:44:46 +1030 (CST) Cc: current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk michael butler stands accused of saying: > Sorry .. I know this isn't quite the place but "the people who know" are in > here .. > > I have an old 486DX/4 motherboard that I was trying to squeeze two Adaptec > 2842 controllers onto .. a small(-ish) news server. It has 3 VL slots but > they're documented as "J18 & J19 are master 0, J20 is master 1". Oh dear 8) > I tried the controllers in J18 & J19 but the second one has all sorts of > bother, can't read IRQ correctly from EEPROM and selects 3.6 meg async for a > Quantum Atlas 4.3G .. not quite what I was after :-( Sounds bad. > I couldn't take the machine down for longer than ~15 mins so I thought I'd > ask here before making customers any more cranky .. do I have to have them > in J18 & J20 for this to work ? Probably. It's also possible that you won't be able to put more than one VL master in that board at all. The whole 'VL busmaster' thing was a bit fuzzy to begin with, and I've had really mixed results with putting more than one busmaster (mostly Ultrastor 34f's in my case) in VL systems. > michael -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[