Re: Carte Blanche Atto (CB for the IIc)

[a2retro <a2retrosystems@gmail.com>]

On Mar 27, 10:34 am, Raymond Wiker <r...@RAWMBP-2.local> wrote:
> Raymond Wiker <r...@RAWMBP-2.local> writes:
> > Steve <srk...@gmail.com> writes:
>
> >> Hi All,
>
> >> I havent had the chance to drop in much, but I have been busy
> >> tinkering with II stuff in my spare time. Although its been at a
> >> snails pace, I have managed to prepare a prototype of Carte Blanche
> >> intended for the IIc (called CB Atto). Its a pretty tight fit and
> >> seems to just clear at the moment. There's still a long way to go with
> >> programming etc, but so far it feels like a good start and has passed
> >> all of its tests. I hope to see if Alex has the time to port JAT over
> >> to it at some point. Either way, its been an interesting experimental
> >> board.
>
> >> Anyway, as usual, open to any idea's.
>
> >>http://www.applelogic.org/CarteBlancheAtto.html
>
> >    Neat :-)
>
> >         Will this work with the IIc+ as well as the IIc?
>
>         Hmmm... Answering my own question: "No". Looks like the CB Atto
> is meant to plug into a 40-pin DIL socket where the 6502 would normally
> be found; the IIc+ has a 68-pin(?) PLCC version of the 6502.
>
>         I may have to try to get hold of a IIc (or a IIe/II+) at some
> point, then :-)

The IIc+ uses a 65C02 processor in addition to the custom ASIC.
Compatibility aside, it remains to be seen if the socket for the ASIC
will cause any clearance issues.

Glenn