Date   : Tue, 23 Nov 2010 10:53:19 +0000
From   : philb@... (Phil Blundell)
Subject: Harddisc fakery using a microcontroller

On Tue, 2010-11-23 at 21:33 +1100, Alan Williams wrote:
> There really isn't an issue with any modern single chip micro doing the
> emulation job, the difficulty is that they are usually not well suited
> to being bus interfaced peripherals.

Yeah, indeed.  Given that the Beeb host adapter isn't much more than a
set of memory-addressed latches, I would be inclined to retain that
functionality in pretty much its current form (though probably
reimplemented in a CPLD or something rather than the big pile of
discrete logic) and then attach a microcontroller to the other side.  I
think that'd work out easier and probably cheaper than trying to find a
micro that could be welded directly to the 1MHz bus.

p.