[Coco] 512K EEPROM...or 4MB!!?

[Camillus]

Yes, I like this very much. And to be honest it was one of my ideas to build something like this years ago.
Now I'm only have to pay you for the work...LOL


For my $0.02 worth opinion, maybe go with the one 4MB chip, then use the first 2K or more for a selection monitor controller program that does the same thing as your external arduino, but then on the coco.( starts like an normal cartridge). Rewrite your Arduino code or make use of Logicall ( or wat was the name of that nice boot loader program?). The software need to be tweaked of course so it select one out the many images and setup the right address selection.

Also does it need to be an EEPROM, a couple of cmos SRAM or not so killing expensive anymore, and a lithium cell 3.5 volt goes a long way. This gives you the opportunity, to have people program there images directly from the coco. ( option programming in yourFW or Logcall ).

Basically what I'm trying to say is combine your project...LOL


The more I write about it the more I want to design it, but thanks to you we can have something to play with, and it is a really awesome project, thanks a lot for the effort.  
 
Keep up the good works.

cb

PS I will order a board from you soon.

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On 12/8/2015 8:23:32 PM, Chad H <chadbh74 at hotmail.com> wrote:
Today I was looking at EEPROM chips and stumbled upon a 4MB chip that meets
all the criteria for what I could consider to be a candidate for a EEPROM
board. My current boards support up to 512MB via PLCC32 or DIP32 socket but
the 4MB would require some creative adapting with its TSOP40 layout. In
order to make practical, I could design a tiny adapter board to solder it
to, giving it legs so to speak, that could be plugged into the EEPROM board
or a special adapter for programmers such as the TL866 or GQ-4X. I'm
wondering though if this is 'too much'. We can fit quiet a lot of
.ROM/.CCC/.BIN stuff in the 512K chips already, but 8 times as much? Then
again.is there such a thing as too much space?



I've got a itch to persue this and see if I can make some sort of
'Mega-Flash' version of the EEPROM boards around this chip. I could even
keep the existing External Controller interface. Because it uses serial
address control, no changes would have to be made there. I'm just not sure
if I could even find enough games and utilities in .BIN/.ROM/.CCC format to
even fill such a chip.



Thoughts anyone?



- Chad H

http://sites.google.com/site/cbhlab101/




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