EPROM emulator

Andrew K. Mattei amattei at mindspring.com
Thu Feb 11 15:49:29 GMT 1999


jsg at donet.com wrote:
> 
> Do we have enough interest to layout a board that will allow use to
> emulator the EPROM in several ECMs? This could be a group buy much
> like the boards on the efi332 project. I see something that would
> allow us to switch between an EPROM/RAM and RAM (2 banks) with a small
> processor connected to a laptop by RS232. We could, in real time,
> alter the tuning data. Example: with the engine running roll in the
> EPROM (synchronously), write to the RAM, then roll the RAM back
> in. Cost would be on the order of $50 or less. Comments?

Sounds good to me, too. I take it that the above design would be better
than this one:

http://www.ldti.com/e46emu.htm

Need any help, or do you already have a design/software? As previously
mentioned, I'm a decent hack with the parallel port and C...

-Andrew



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