2 Jun
2001
2 Jun
'01
7:33 a.m.
Probably not.
My experience with the Apple-specific bridge controllers is that they are set up
for a specific drive geometry in their firmware, which is Apple-specific, and
geometries other than that won't work. They don't seem to have the ability to
respond to drives that are set up on an otherwise identical, but non-Apple,
bridge board, that have a different geometry or some other unpalatable
characteristic, e.g. sector size, or some such.
Dick
----- Original Message -----
From: "Jeff Hellige" <jhellige(a)earthlink.net>
To: <classiccmp(a)classiccmp.org>
Sent: Saturday, June 02, 2001 12:49 PM
Subject: Re: 3.5" MFM hard disk
Ah, I see.
It's some whacko custom thingie. Didn't the Lisa originally
use some kind of ProFile-ish thing (custom interface, custom drive
electronix, etc.).
I opened up my 5meg Profile hard disk finally and found that
it has a ST-506 inside of it coupled to a couple of Apple coverter
cards. Most of the case of those Profiles is taken up by the PSU.
At least that bodes well for eventually getting it running again if
the drive itself appears to be fairly normal. Without bothering the
drive geometry settings, if there are any, wouldn't any MFM drive
attached to this setup then appear to the system to be the 506?
Jeff
--
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Home of the TRS-80 Model 2000 FAQ File
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