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

[Mark Marlette]

Ok, I'll jump in here and it is not my intent to take away from anyone's project but to inform others that might not be aware.

This already is a product called the miniFLASH that I produce and is currently available. Though Jim and Chad's devices are larger, most, as others have indicated here, don't have that need for such a large device, YMMV. I can see when designing to have a larger device as the additional size is almost free. When in production, stocking different sized components is not free. :)

The miniFLASH is programmable from the CoCo and takes ~20 seconds to program a FLASH bank.
The cost is $55 and comes with case(though the top is removed in the picture), documentation and software. S/H are additional.

Documentation is online along with more information at :
http://www.cloud9tech.com/Hardware/miniFLASH.html
An addition benefit is that it comes with John Linville's CoCoDOKU, FollowCoCo. Other banks include DriveWire for CC2 and DriveWire for CC3 already pre-FLASH'd into the banks.

Regards,
 Mark Marlette
 http://www.cloud9tech.com
 
     From: RETRO Innovations <go4retro at go4retro.com>
 To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
 Sent: Tuesday, December 8, 2015 11:46 PM
 Subject: Re: [Coco] 512K EEPROM...or 4MB!!?
   
Though it was not available to demo at the Coco show in 2015, I have on 
my bench a prototype 8MB Flash Cart, offering the following features:

  * it can be programmed by the Coco (1/2/3)
  * It can hide the registers, and unhide them.
  * The base address of the registers can be changed by the Coco
  * It supports mapping any 2kB region of the flash cart into the Coco
    cartridge address space
  * I believe it supports up to 32kB address space, but I am not 100%
    sure I have the logic correct for that (it would work, I just have
    not tested it)
  * It offers 2 momentary switches that can be read under software control
  * It supports a single LED that can be software controlled
  * It fits in a small Coco cartridge case
  * It is licensed under CC3.0 license
  * Can be produced pretty cheaply (under $50 for sure)

Obviously, it lacks a nice programmer utility, which is where the 
project basically stopped.  It's viable and cheap, but does require 
software development to be useful.  I currently do not have the time to 
write such a utility, but I have two units and am happy to send them to 
interested individuals who are capable of writing said applications 
(needs a menu and a programmer app).  I can provide any technical 
support on how to program, but my 6809 ASM and even my Coco BASIC 
prowess is limited.

Not trying to rain on your parade, but thought I should lay my card(s) 
on the table.

Jim





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