Date   : Wed, 27 Jul 2005 13:09:27 +0200 (BST)
From   : Johan Heuseveldt <johan@...>
Subject: Re: ARM copros, speech cartridges, real time clocks,etc

Hi Jonathan,

On Wed 27 Jul, Jonathan Graham Harston wrote:
> Johan Heuseveldt <johan@...> wrote:
[...]

> > > I think the most reasonable solution would be to program a FPGA to act
> > > as an Tube/Serial/Video ULA.
> > 
> > There's a misconception here.
> > 
> > Serial and Video ULAs belong to the Beeb as system properties. The
> > Tube ULA belongs to the CoPro, for which the host-side is seen by the
>  
> Unless you want to give the external processor its own serial
> and/or video system. The Torch Z80 coprocessors has their own
> serial port, and the later A500(?) ARM development system has
> video and serial via VIDC and IOC. I'd quite like a almost-A5000
> plugged into my Tube sockets, complete with its own video socket!

:-)

In imagening things up for new designs, the sky is the limit! And no
doubt you get inspired by things done at Acorn, of which only a few
people know about. It seems Acorn have done a lot of developements,
which were discontinued after a while.

Pretty much the same way I got inspired by the the extra contents of
the Tube ULA. But that's quite modest compared with your ideas!


greetings,
Johan

-- 
Johan Heuseveldt <johan@...              >
  aka  waarland

  The best place is a Riscy place
 
Washing your car to make it rain doesn't work.