[Coco] MC-10 RAM and ROM Carts

[Marcelo Cannella]

Congrats Ed!.
Very interesting project!.

El 28/7/2016 23:27, "Zippster" <zippster278 at gmail.com> escribió:

> Hello everybody,
>
> This is a little project I’ve had the hardware done on for a while.   This
> week I got back to them and
> worked up the CPLD programming for them.  They seem to work well after
> some testing.
>
> I’ll be removing two of the jumpers as I think they aren’t needed after
> finishing development on these.
> There’ll just be one jumper, that will enable and autostart ROM code at
> $E000 (where Microcolor BASIC
> normally resides).
>
> These should be well suited to cartridge games on the MC10.  They will add
> to the system…
>
> 1) 32K of RAM
>         - 16K mapped to $0000-$3FFF
>         - 16K mapped to $5000-$8FFF (available for basic programs)
>
> 2) 16K of ROM
>         - 8K mapped to $C000-$DFFF
>         - 8K mapped to $E000-$FFEF (last 16 bytes excluded for CPU vectors)
>
> A few pics and whatnot...
> < https://drive.google.com/open?id=0B1sgl615FlGndzRDQUNzTlJMRms <
> https://drive.google.com/open?id=0B1sgl615FlGndzRDQUNzTlJMRms>>
>
>
> A version with two ports for Atari style joysticks will probably be next.
> They’ll function the same as
> the joystick ports on the Alice computer and Darren Atkinson’s MCX32 for
> the MC10.
>
> - Ed
>
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>