Search found 71 matches

by darknezz19
Tue Sep 05, 2017 1:45 pm
Forum: Other Retro Dev
Topic: TG16 ext port to 29f016
Replies: 6
Views: 6346

Re: TG16 ext port to 29f016

Tried to mess with this again lately and got it too work. MaarioS was right. The EXT pinout online in the tg16 service Manuel is different than what the hucard pin out reads. Had to open it up and test each pin on the hu card connector and eventually got it to start the game.

http://imgur.com/a/Vsrb8
by darknezz19
Tue Sep 05, 2017 1:43 pm
Forum: Other Retro Dev
Topic: Pro Action Relplay upgrade flash size..
Replies: 2
Views: 4549

Re: Pro Action Relplay upgrade flash size..

That latest version of pseudo Saturn Kai iso flasher supports these chips now. Was able to flash 2 banks with the highest address line tied top vcc and vss.

Pretty simple but if anyway wants to try.

https://www.reddit.com/r/SegaSaturn/com ... aves_in_1/
by darknezz19
Mon Mar 28, 2016 7:28 pm
Forum: Reproduction
Topic: TSROM dono for TLROM game?
Replies: 6
Views: 2918

Re: TSROM dono for TLROM game?

I appreciate your gentlemen.

Edit: I spell good. Thanks guys:)
by darknezz19
Mon Mar 28, 2016 6:13 pm
Forum: Reproduction
Topic: TSROM dono for TLROM game?
Replies: 6
Views: 2918

Re: TSROM dono for TLROM game?

These are on INL boards so I assume the rewiring isn't needed.

Man, why are NES so much more complicated than SNES boards><
by darknezz19
Mon Mar 28, 2016 1:26 pm
Forum: Reproduction
Topic: TSROM dono for TLROM game?
Replies: 6
Views: 2918

TSROM dono for TLROM game?

Would the board have to be rewired or is just removing or disabling the 8K PRG RAM enough?
by darknezz19
Tue Jan 19, 2016 7:45 pm
Forum: Other Retro Dev
Topic: Pro Action Relplay upgrade flash size..
Replies: 2
Views: 4549

Pro Action Relplay upgrade flash size..

So some of you may have heard of Pseudo Saturn which flashed over your original Action Replay or Gameshark code to boot backups. Only Issue is codes and save backup will no longer be accessible. To get around this figured I'd replace the original 2x AT29C010A(128K) with 2 W27C020(256k) and swap A17 ...
by darknezz19
Mon Jan 11, 2016 5:41 pm
Forum: SNESdev
Topic: GQ-4X4 Rewriting 29F032B does not work
Replies: 7
Views: 3767

Re: GQ-4X4 Rewriting 29F032B does not work

Double check your top pins that need to be moved in for a gq-4x.
by darknezz19
Fri Aug 21, 2015 8:01 pm
Forum: Reproduction
Topic: Theory of rom chips and idea for a tool similar to swapbin
Replies: 6
Views: 3435

Re: Theory of rom chips and idea for a tool similar to swapb

Thanks for the details lidnariq, that home made rom that was built was interesting. I tried to use a pin swap program for nes roms, made by FARID, and used a 512kb test file then did a file compare of the two. Thought there would be like chunks that are just swapped in a different order for each pin...
by darknezz19
Thu Aug 20, 2015 9:53 pm
Forum: Reproduction
Topic: SNES Repro Help: 12mbit ROM
Replies: 1
Views: 2309

Re: SNES Repro Help: 12mbit ROM

Yep wrong section, there's a /reproduction section for this stuff now. Most people around here are nice enough and don't really care about something like this though. I don't think swapbin is able to handle 2mb swaps properly. I could be wrong here but anything thats over 2MB wont swap properly even...
by darknezz19
Thu Aug 20, 2015 9:19 pm
Forum: Reproduction
Topic: Theory of rom chips and idea for a tool similar to swapbin
Replies: 6
Views: 3435

Theory of rom chips and idea for a tool similar to swapbin

When a rom is burned is the data carried into the D0-D7 lines and broken up into 8 parts? I want to get a better idea of how the data is arranged and try to write a tool similar to what swapbin does. It would swap the data of a hirom game(that doesn't use sram) into a rom that could be programed ont...
by darknezz19
Fri Jun 19, 2015 8:20 pm
Forum: Reproduction
Topic: Scrambled graphics in reproduction
Replies: 5
Views: 2809

Re: Scrambled graphics in reproduction

Donor used, original rom image info, flash chips used?
by darknezz19
Sat May 09, 2015 1:16 pm
Forum: Reproduction
Topic: Understanding a 139 decoder to wire up 2 roms.
Replies: 7
Views: 3935

Re: Understanding a 139 decoder to wire up 2 roms.

I think I understand now Tepples. 139 decoders work on SNES because the hardware can address more than the 4MB address range. This wont work on a Genesis because there is nothing to signal to the 139 that it needs an address over the 4MB threshold, is that correct? If this is correct then what signa...
by darknezz19
Sat May 09, 2015 9:25 am
Forum: Reproduction
Topic: Understanding a 139 decoder to wire up 2 roms.
Replies: 7
Views: 3935

Re: Understanding a 139 decoder to wire up 2 roms.

In the pictures posted, the one of the pcb with the two mask roms removed uses 42 pin chips. This would lead me to think they are two 2MB roms at least. Also another member asked about this once, Ice Man in the other retro dev forum. I sent him a PM and he said he got it working with a 139 but forgo...
by darknezz19
Fri May 08, 2015 10:11 pm
Forum: Reproduction
Topic: Understanding a 139 decoder to wire up 2 roms.
Replies: 7
Views: 3935

Understanding a 139 decoder to wire up 2 roms.

So I'm playing around with this 139 decoder and a couple 27c322's to try and make an 8MB Genesis cart but so far have not got it to work. Some questions have come to mind about how this should be wired up. This is going off a setup for a 6MB Snes game as a reference which has the address input line ...
by darknezz19
Fri May 08, 2015 8:48 am
Forum: Reproduction
Topic: Build an eprom eraserr for about $7
Replies: 3
Views: 2189

Build an eprom eraserr for about $7

Received some m27c322 eproms the other day but they were not blank unfortunately. Money is tight so it was either spend ~25 for one from the states or ~15 to get one frrom China in 30 days. I read that germicidal lamps are the same bulbs in an eraser, but how would I power one? Found a 9w UV germici...