HP test board?

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Fri Sep 24 19:14:13 2004

> Bob,
> I know that you and Steve were working on writing some software for the
> 9885. If you can use this to help figure out the pin out or operation of
> the 9885s you're welcome to it for a indefinite loan.

It may not be a lot of use for that. I've not seriously looked inside the
9885 yet (a future project, thanks for prompting me...), but it would
appwar that the lonk between the master and slave drive units -- the DC37
connecotrs -- is somewhat like a Shugart drive interface (low-level disk
drive contorl sigals). The master drive contains the controller (4 or 5
PCBs from what I remember) and links to the host using a 16 bit parallel

There would seem to be little point in using the slave drives on their
own -- any normal 8" drive would do as well. And if you're going to be
using the master, you'll be talking to the higher-level interface, on the
DD50 connector.

Received on Fri Sep 24 2004 - 19:14:13 BST

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