Date   : Mon, 25 Jul 2005 22:32:09 +0100
From   : "BeebMaster" <beebmaster@...>
Subject: Re: ARM copros, speech cartridges, real time clocks,etc

I've been trying to find the Tube ULA (and other ULA) chips for years but
haven't found them anywhere.  I even had some enquiries made of Ferranti
at one point but they didn't have any old stock.

Best wishes,


Ian

----- Original Message -----
From: Jules Richardson
To:  bbc-micro@...
Sent: Sun, 24 Jul 2005 20:42:21 +0000
Subject: Re: [BBC-Micro] ARM copros, speech cartridges, real time clocks,etc

On Sun, 2005-07-24 at 21:13 +0100, Sprow wrote:
> In article <1122233737.10259.94.camel@...>,
>    Jules Richardson <julesrichardsonuk@...> wrote:
> 
> > > > 2.ARM7 coprocessor board
> > >  
> > > That would be interesting. Take this as a firm order for a Master
> > > internal version please. As a point of interest, would it use the
> > > Acorn Tube ULA or something different for the hardware interface?
> 
> Unlikely since I only have a few left. I'd either use a CPLD to replace the
> Tube ULA functionality, or at 75MHz just process all that FIFO nonsense in
> software.

Actually, it'd be nice if someone was looking at ULA replacements for
the Acorn machines anyway - all the other parts can still be sourced
pretty easily, but it's presumably reasonably difficult to find a ULA
(particularly wihtout destroying another machine in the process)

Of course maybe all of this has already been done by someone! 

cheers

J.