[Coco] A cartridge to hack

[Mark McDougall]

On 21/09/2012 1:26 AM, Juan Castro wrote:

> I want a simple thing: a CoCo 1/2 cartridge that uses a 16 KB ROM
> (C000-FEFF) so I can replace it with a socket and burn and test
> homebrew ROMs until the cows come home. What should I buy?

I designed one a while back and got a few PCBs made. Note I'm talking about 
the so-called "Coco-Flash" variant in its EEPROM configuration (NO FLASH, 
that didn't work out so well). It's designed to take 16K/32KB via a jumper 
setting.

Details here:
<http://members.iinet.net.au/~msmcdoug/coco/coco.htm>

Picture here of an assembled EEPROM board:
<http://members.iinet.net.au/~msmcdoug/coco/coco_flash_assembled_rom_option.jpg>

I assembled one and tested it. Works fine.

IIRC I had 6x PCBs made, and in theory there should be 3 left. If you're 
interested in a bare PCB, or something assembled, I'm sure we can work 
something out!?!

FTR I need to re-visit the Coco-Flash-2 board due to an oversight on my part 
with regards to the design... one day... :(

Regards,

-- 
|              Mark McDougall                | "Electrical Engineers do it
|  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"