Date   : Sat, 12 Jun 2004 21:23:28 +0200
From   : John Kortink <kortink@...>
Subject: Re: Solid state storage for the beeb

On Sat, 12 Jun 2004 19:12:51 +0100, Sprow <info@...> wrote:

>In article <8u9mc0hkikq816js269rrtcl34r2jpsa1m@...>,
>   John Kortink <kortink@...> wrote:
>
>[...]
>
>> Currently I'm tapping 4 bits of port A of the user VIA,
>> but I'm moving everything to a ROM socket.
>
>I bow down to your selection of interface - the disc interface would
have
>been hardware madness. My suggestion was probably going to push you
towards
>the Tube just 'cos you could run it at 2MHz, but ROM would be just as
good.

Well, I'd rather assume all ports are in use (floppy needed
as a source for files, the user port for 65Link, 1 MHz bus for
whatever, Tube for 2nd processor). Except perhaps the printer
port, but that's not bidirectional, although, obviously, that
could be arranged by fitting the interface to the user VIA
socket. But that wouldn't be compatible with the Master.
Using a ROM socket is.

>The only downside for me would be getting the MMC out to transfer to my
PC
>but for
> BBC B -> long lead to cheap MMC socket in 'the ashtray'
> Master -> use a cartridge holder (possible mechanical constraints)

Hmmm, yes, there's something to be said for having the MMC
card outside, but there's more merit in having it inside.
I can perhaps provide an extra connector to take the MMC
signals outside (using a cable).


John Kortink