C64-C128 CP-M Cartridge Interest

Jim Brain brain at jbrain.com
Sat Dec 25 13:33:33 CST 2010


On 12/25/2010 11:24 AM, Dave McGuire wrote:
> On 12/24/10 11:24 PM, Jim Brain wrote:
>> Is there a link handy to a minimal schematic. Alexandre's question
>> piqued my curiosity, so I went looking, thinking there would be a ez80
>> Acclaim + SRAM + SD, using the RS232 for a terminal. I can't find
>> anything that minimal.
>
>   I could draw one up.
I would appreciate that.
>
>   For the eZ80Acclaim! chips, there's at least one port of CP/M that 
> I've seen floating around.  Those chips are pretty easy to design 
> with; I've done a few commercial designs with the eZ80F91 (the member 
> of the family that runs at 50MHz and has an on-chip Ethernet controller).
>
> In any case, I have done several BIOSes (including two for homebrew 
> Z80 SBCs) and can help with that.
That would be grand.  There is a small but passionate group of folks who 
would enjoy this, but I'm not a BIOS person, I barely know Z80 assembler.





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