Date : Wed, 17 Sep 2003 14:56:54 +0100
From : Andrew Hancock <Andrew.Hancock@...>
Subject: Re: Watford Co-pro adaptor
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*** Signer: Andrew Hancock <Andrew.Hancock@...>
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512k board was called a Master 512k or Acorn sold it as an
80186 CoProcessor.
Same item.
Regards
Andrew
-----Original Message-----
From: Jules Richardson [mailto:julesrichardsonuk@...]
Sent: 17 September 2003 11:37
To: bbc-micro@...
Subject: [BBC-Micro] Watford Co-pro adaptor
Another thing that's just turned up on the doorstep... a Watford Electronics
coprocessor adaptor.
Never heard of one before - it has a nice metal case with a hinged lid.
Inside
is a 80186 board which appears to be the same as that in the Master 512;
this
plugs into a board that has a trailing IDC cable that I assume plugs into
the
Tube on a BBC.
I'm assuming the unit allows Master copro boards to be used on a regular
BBC?
In which case, do I need anything special on the BBC side software or
hardware
wise to make use of the thing? The user-added label on the case says to
switch
on the adapter, then the computer, hit ctrl-A-break, and after the drive
spins
to insert the boot disk (which I don't have)
Oh, the unit also has a power switch on the front and a latching switch with
an
LED above; due to the latching this presumably isn't a reset - anyone know
what
it does?
As an aside, what copro units were produced for the Master series? I only
have
the one 80186 board (well, two now), and a few 65C102 boards. Were there
others
as there were for the BBC - Z80, 68000, 32016, ARM etc.?
cheers
Jules
ps. I have no idea why they went to the trouble of nicely hinging the case -
I
can't see people wanting to swap boards in the unit *that* often! (unless it
has a habit of blowing them up :-)
====
Backward conditioning: putting saliva in a dog's mouth in an attempt to make
a bell ring.
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