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The Definitive Guide to CPS2 Conversions

@man1aco

Can you confirm if this is correct in identifying the type for JEDEC or NON JEDEC?

https://www.jammarcade.net/1mbit-eprom-confusion-jedec-vs-non-jedec/

That is what I'm going by. The jumpers for the Sony CXK27C1001DQ-15 used in my COA are crossed as Jedec. The changes to your XLS show the jumpers differently than capcom used to achieve a working game.

I just want to make sure as I'm trouble shooting my issue I have the context correctly.

I appreciate your time.
 
JacksonRR1 said:
@man1aco

Can you confirm if this is correct in identifying the type for JEDEC or NON JEDEC?

https://www.jammarcade.net/1mbit-eprom-confusion-jedec-vs-non-jedec/

That is what I'm going by. The jumpers for the Sony CXK27C1001DQ-15 used in my COA are crossed as Jedec. The changes to your XLS show the jumpers differently than capcom used to achieve a working game.

I just want to make sure as I'm trouble shooting my issue I have the context correctly.

I appreciate your time.
Click to expand...
Uploaded XLS again, It was correct before. the cps2 schematics are wrong all jumpers are misplaced, confirmed with multimeter and a B-board.
1697749663895.png
 
I’m thinking about converting my Vampire board into a Punisher.
What GAL version is suited for this?
 
frsj8112 said:
I’m thinking about converting my Vampire board into a Punisher.
What GAL version is suited for this?
Click to expand...
This would be CPS1.5 game (Punisher) running on CPS2 (Vampire) hardware right?

As far as I'm aware the only CPS1 game that has been fully and successfully ported to run on CPS2 hardware is Final Fight Anniversary Edition.
https://www.patreon.com/posts/final-fight-ae-71318165

If such a thing is possible I'd love to know more, but last time I checked this there were lots of nearly-there Punisher on CPS2 projects, but none completed enough to be playable
 
I have a bare bone board, no top shell, so nothing to really conserve besides the eproms :)
 
Hi. Anything for making work the famous 64mbits PCBs for MVS and SEGA Model on CPS2/ZN2 games?

https://github.com/tdaede/toshiba-64mbit-adapter

41852-364e6cc7fd3a0b5a3496fb815cb111b3.png
41853-a4fe185c5399a6c35af86b688199f19c.png


The final pinout is not exactly the same, as the A21 signal is in different place it seems

Screenshot_20240413-222410_Chrome_1.png


In the before mentioned systems, the pin 11 CE signal is out and in its place it goes A21 signal. But in CPS2/ZN2 doesn't work this way. Any info?
 
Tailsnic Retroworks said:
Hi. Anything for making work the famous 64mbits PCBs for MVS and SEGA Model on CPS2/ZN2 games?

https://github.com/tdaede/toshiba-64mbit-adapter

In the before mentioned systems, the pin 11 CE signal is out and in its place it goes A21 signal. But in CPS2/ZN2 doesn't work this way. Any info?
Click to expand...

This is a really cool project, thank you for sharing it - I didn't know.

I did find this post; refers specifically to E and A21 being moved to their "correct for NeoGeo" position for 1.1
http://www.neo-geo.com/forums/index.php?threads/64mbit-8mb-flash-adapter-board.260677/post-4238025

So if 'I'm reading the commit history correctly then 1.0 should have them in the "original for CPS2" position in 1.0

Initial commit here
https://github.com/tdaede/toshiba-64mbit-adapter/commit/2e3c332063b711b10d8ab1dc0b8d28ad09a71a6e

and A21 on pin 13 if I'm reading line 17 right
v10.png

There are a couple of other changes from 1.0 to 1.1 as well, so this might not be a simple as just manufacturing the v1.0 boards for CPS2.

Can anyone confirm that I'm on the right track here?
 
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