Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!pravda.aa.msen.com!spool.mu.edu!howland.reston.ans.net!news.sprintlink.net!in2.uu.net!news.mathworks.com!fu-berlin.de!zrz.TU-Berlin.DE!zib-berlin.de!news.tu-chemnitz.de!irz401!uriah.heep!bonnie.heep!not-for-mail
From: j@bonnie.heep.sax.de (J Wunsch)
Newsgroups: comp.misc,comp.unix.bsd.freebsd.misc,alt.folklore.computers
Subject: Re: Micropolis 1568 ESDI drive jumpers
Date: 28 Aug 1995 10:35:11 +0200
Organization: Private U**x site, Dresden.
Lines: 33
Message-ID: <41rv3v$pu4@bonnie.tcd-dresden.de>
References: <id.7BSM1.M58@nmti.com>
Reply-To: joerg_wunsch@uriah.heep.sax.de
NNTP-Posting-Host: 192.109.108.139
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
Xref: euryale.cc.adfa.oz.au comp.misc:20503 comp.unix.bsd.freebsd.misc:5323 alt.folklore.computers:86262
Peter da Silva <peter@nmti.com> wrote:
>I have a Micropolis 1568 760MB ESDI drive jumpered for 1024 bytes/sector.
>I need to jumper it for 512 bytes/sector for a PC interface.
I've once been using a 1684 (330 MB ESDI), not sure whether they're
related or not. Just in case, this is from Data General's doc that
accompanied the drive:
DA1-DA3: ESDI ID. (default off-on-off, device address 2)
W1: off: hard sector mode
on: soft sector mode
W2 W3 W4 SPT unformatted bytes per sector
0 0 0 53 588
1 0 0 54 576
0 1 0 28 1116
1 1 0 14 2232
0 0 1 7 4464
1 0 1 - reserved -
0 1 1 97 321
1 1 1 1 31248 :-)
W5: off: spindle motor starts when power applied
on: spindle motor starts when Spindle command received
from controller
Hope this might be helpful.
--
cheers, J"org private: joerg_wunsch@uriah.heep.sax.de
http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)