[RedskullDC]

Hi Turran, et al.

Originally Posted by Turran

Oh right! That would explain it. hehe. I was sure 27C400 stored 4 MegaByte. Foiled again! Why did the burner not complain then. Weird.

http://www.sanitaryum.com/wp-content...iled-again.jpg

Your software probably just wrote the first 512KB out to the 27C400?

If that's the case, your 68000 would just see an endless loop when it executes the code at $00000002 (when the OVL signal is active):

4E F9 00 F8 00 02; JMP $F80002.

Which is pointing back at itself once the OVL signal is disabled

I've just uploaded a file to the zone you may find useful.
In EXCEL format (sorry).
Just some notes I made while working on the forthcoming FlashROM project for the 600/1200 ...

Cheers,
Red