Date   : Thu, 28 Oct 2004 10:54:06 +0000
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Dragon copro (was: Cumana 68008 second processor & OS-9/68000?)

> There was a hack about to connect a Dragon 32 (6809-based) to the BBC as
> a second processor. Whether it was a 'real' second processor or just two
> systems with shared I/O I'm not sure though. 

I've got hold of the mag with the first part of the article in -
'Electronics & Computing' August 1985. I'll have to grab the next issue
from Bletchley. 

It needs a Dragon 64 rather than a 32 and uses an 8255 IC (rather than a
tube ULA) for comms - IIRC the Torch copros did that too. 

OS is FLEX, which means absolutely nothing to me :-) Of course all of
this is somewhat academic as nobody's going to have the software these
days...

I think the mag with the Casper 68000 article in is at Bletchley too so
I'll try and hunt that one out...

cheers

Jules