[Coco] FlashPak

[RETRO Innovations]

I finally was able to validate that my simple Color Computer FLASH ROM 
cartridge works!

https://github.com/go4retro/FlashPak/ 
<https://github.com/go4retro/FlashPak/>

It's a 512kB ROM cartridge that uses the CoCo standard banking mechanism 
to select 1 of 32 16kB ROM "banks". The unit can be programmed while 
installed in the CoCo, meaning no need to own an EPROM programmer or 
eraser or another computer to program the ROM.  The PCB is through hole, 
so it can be assembled without special tools.  I have more work to do, 
as it needs a proper menu and programming app (the BASIC one I wrote to 
test works, but is very slow), but at least I know the design works!

Jim

-- 
RETRO Innovations, Contemporary Gear for Classic Systems
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