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R. Belmont
Cookoo for Konami
Reged: 09/21/03
Posts: 9544
Loc: Klaatu Nebula
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Re: DU Update: Final Lap 3
09/30/10 09:17 PM


> The C68 MCU has a pin to select internal or external ROM that is brought out to a
> jumper on the motherboard. The pin is latched internally during a reset pulse so
> subsequent changes are ignored. Just to be sure I verified with a trojan that the pin
> state really is ignored after a reset.

Couldn't you cut the trace and hardwire it to be pulled up or down, whichever selects "external ROM"?







Entire thread
Subject Posted by Posted on
* DU Update: Final Lap 3 SmitdoggAdministrator 09/28/10 08:03 PM
. * Re: DU Update: Final Lap 3 jonwil  09/29/10 01:48 AM
. * Re: DU Update: Final Lap 3 SmitdoggAdministrator  09/29/10 02:00 AM
. * Re: DU Update: Final Lap 3 Phil Bennett  09/29/10 03:00 AM
. * Re: DU Update: Final Lap 3 R. Belmont  09/29/10 10:54 PM
. * Re: DU Update: Final Lap 3 jonwil  09/29/10 03:52 PM
. * Re: DU Update: Final Lap 3 Phil Bennett  09/29/10 09:47 PM
. * Re: DU Update: Final Lap 3 Charles MacDonald  09/30/10 12:15 AM
. * Re: DU Update: Final Lap 3 R. Belmont  09/30/10 09:17 PM
. * Re: DU Update: Final Lap 3 jonwil  10/01/10 01:15 AM
. * Re: DU Update: Final Lap 3 Fever  09/28/10 09:38 PM
. * Re: DU Update: Final Lap 3 SmitdoggAdministrator  09/28/10 09:45 PM

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