24 Dec
2002
24 Dec
'02
6:39 p.m.
--- Don Maslin <donm(a)cts.com> wrote:
On Tue, 24 Dec 2002, Ethan Dicks wrote:
>
> I've been trying to extract the data off of a 20MB XT-IDE drive
> (WD-93024X) that was once part of a hard card... I have inserted the
> card in backwards...
Ethan, I have an Acculogic XT-IDE which is purported
to be
interchangeable with the WD card that I can send you.
That'd be great!
The EPROM is soldered in place, so getting the image
is not straight
forward.
Well... at the moment, I'm unsoldering all the chips that got hit by
odd voltages (about 1/2 the TTL for sure) so I can test them in my
TTL tester. I expect that the EPROM got whacked as well, seeing as
how -5V, +12V and -12V all end up on address lines when you insert
an 8-bit card the wrong way. :-/
There should be a way to save a block of memory to disk (debug, perhaps?)
from DOS, presuming you have a machine you can stick
the card into.
Still, the simplest solution is a board swap. I could probably burn
an image with my C-64 and a my Prom Queen if I located the software
to drive it. Alternatively, I have a serial-based programmer that
ISTR has an interactive hex dump feature - you talk to it over a
2-way RS-232 link and can dump data to it, or send interactive
commands. There's no "program" or "copy" button. It's a Bay
Technical
Associates 953B. Haven't used it in years. Think it only does 1Kbit
to 8Kbit devices and no funny pinout stuff like thge 2532.
Thanks to all who have offered help.
-ethan
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