Date   : Wed, 06 Aug 2003 14:57:57 +0100
From   : "C Alastair Seggie" <alastairseggie@...>
Subject: Re: Lathe ROM modules... / Watford VPO ROM

Hi Jules 

Sounds interesting any chance of a few pictures. What is the message
when you type *help ?

If you get a chance go here: http://8bs.com/substarturn.htm  you will be
able to see the ROM I am looking for looks like. It has SYNTEL on the
PCB. But let us know what the *help reveals.

Much appreciation for looking, we may be on to something here.

Alastair



-----Original Message-----
From: Majordomo List Manager [mailto:majordomo@...] On Behalf
Of Jules Richardson
Sent: 06 August 2003 13:23
To: bbc-micro@...
Subject: [BBC-Micro] Lathe ROM modules... / Watford VPO ROM


Sorry, I lost the original post about this so can't remember the title!

I've just been going through all of my Acorn stuff to see what I have,
as lots
of new stuff's turned up recently.

I found in a Master machine a ROM module very like the one described the
other
day for controlling a lathe - the ROM chip itself plugged into a carrier
containing a PAL chip, which in turn plugs into the system board.

The ROM in question in this machine has a Watford label with 'VPO'
written on
it in pen. The PAL chip is a 16L8. The ROM carrier has the text
'P102/A'. 

Unlikely that the decoding done by the PAL is the same I suppose, but
you never
know. I'm not sure what this Watford ROM is for - does VPO mean anything
to
anyone? The machine has an 80186 coprocessor fitted, so maybe it's
something to
do with that; there's nothing special about the internals of the machine
otherwise.

cheers

Jules 

====
Backward conditioning: putting saliva in a dog's mouth in an attempt to
make a bell ring.

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