Date   : Sat, 17 Oct 2009 00:50:09 +0200
From   : rick@... (Rick Murray)
Subject: ROM upgrades on the cheap

Mark Haysman wrote:

> You just connect pin 27 of IC101 to pin 27 of IC100 instead of the R/W 
> signal. You still need to make the cut to isolate it of course.

So, in essence, the EPROM sockets would be wired up in *EXACTLY* the 
same way!? Ooookay, I'm not sure how the memory decode works to tell one 
from the other. I think it's time I print out Jason Tribbeck's redrawn 
schematic and stop looking at the scanned one...

Anyway, cool, that's simple. Even *I* can get that right! :-)


Best wishes,

Rick.

-- 
Rick Murray, eeePC901 & ADSL WiFI'd into it, all ETLAs!
BBC B: DNFS, 2 x 5.25" floppies, EPROM prog, Acorn TTX
E01S FileStore, A3000/A5000/RiscPC/various PCs/blahblah...