(1 / 3)
Date: June 20, 1991 18:54
From: KIM::MARGOLIN
To: LOGG,MCNAMARA,MONCRIEF,DOWNEND
CC: MARGOLIN
I have changed the operation of the GAL on the DS III Board at location 1A/B. This GAL is used in selecting the Graphics ROMs; these ROMs can be either 27C512s or 27C010s depending on whether there is a pin header in G0. Old was: No Header = 27C512, Header = 27C010 I have changed it to: No Header = 27C010, Header = 27C512 On DS III boards starting with Rev 2, the 68010 can read the state of Pin Header G0. Self-Test starting with Version 2.4 uses this so it can correctly compute checksums. I would like to have all DS III Boards to have the new GAL. It is a 16V8-25 and the file is [Margolin.GALs.Release]DS3_ROM.JED. The old part has a checksum of 4177; the new part has a checksum of 4178. At the same time, the games should get the latest Self-Test which is [Margolin.Aces]STAL2_4.VLDA [Note that Self-Test is not yet finished.] (When I release the GALs I will ask to have the files moved to [Logg.Ace.Release.ROMREVA].) DS III Rev 1 boards can be modified to have this feature: 1. On bottom of board, Cut the trace going to 6P pin 19; 2. Connect a wire jumper from 6P pin 19 to 5J pin 1; 3. Connect a wire jumper from 6P pin 11 to pin header G0; 4. Connect a wire jumper from 6P pin 9 to 5D pin 6. Jed
(2 / 3)
Date: June 21, 1991 08:54
From: KIM::LOGG
To: MARGOLIN
I am now using the new self test. Please let me know when you fix the CC1 and CC2 tests. I wanted to make sure you are aware that the thumper must be left on for approximately 16ms before it is turned off.
(3 / 3)
Date: June 21, 1991 18:23
From: KIM::MARGOLIN
To: OWENS
CC: MARGOLIN
I couldn't release the GALs on Friday because I couldn't find Ed Logg at the end of the day. I think they all went to the movie. Will try again Monday. Jed
Jun 20, 1991