EPROM emulator

[steve ravet]

> but if you are going to make a board anyways, why not just make it
> general purpose and not require any custom code fragments. I sketched up a
> circuit over lunch with RAM and FLASH in two banks. Once powered, the
> ecm runs out of flash until you down load your data to the RAM. You
> can then switch back and fourth between the two and alter both. What's
> the largest _single chip_ used (those with two can use two boards)? 64k x 8
> (512k bits) right?

Put an EPROM socket on there also, just so you can plug the factory chip
in as a fallback.

--steve

-- 
Steve Ravet
steve.ravet at arm.com
Advanced Risc Machines, Inc.
www.arm.com