Re: 747 Rom Emulator

[Steven Ciciora <ciciora@Ciciora.com>]

I bet this is going to be a popular project.  Good chance I'm going to try
one for my self.  If enough people are interested, I could lay out a PCB.
Thanks for sharing your work!

- Steven Ciciora


On Fri, 14 Jul 2000, Niinikoski, Juha wrote:

> Hi list
> I started my Rover / 747 EFI project by making rom emulator for 747. I made
> small device based on PIC16F877 cpu. My board eats Motorola S-format and
> stores it into Simtek STK10C68 nvram (or ordinary ram) connected via buffers
> to 747 rom socket. Ram is double as big as 2732 rom so you have two code
> banks for quick switching. When device is unplugged from ECM you can also
> read 2732 roms with it. It sends rom content in S-format to host pc. Later I
> may implement also prom programming feature in it. I downloaded schematics
> and asm code into ftp incoming.
> 
> jn_emu1.gif
> jn_emu2.gif
> romemu.asm
> 
> If people are interested to build these I may do emulator project page and
> document the thing better.
> 
> Now I am leaving for two week vacation (no e-mail connection).
> 
> Juha Niinikoski  juha.niinikoski@mikrolog.fi
> Espoo / Finland
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