SNES > Neo Controller Adapters

Started by XianXi, November 27, 2008, 04:56:13 PM

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XianXi

What's the easiest way to use an SNES pad on a Neo Geo besides the obvious pad hack? Someone asked me this and I said the easiest would be to have dedicated SNES controllers and hack them.

Drakon

Quote from: XianXi on November 27, 2008, 04:56:13 PM
What's the easiest way to use an SNES pad on a Neo Geo besides the obvious pad hack? Someone asked me this and I said the easiest would be to have dedicated SNES controllers and hack them.

two ways you can do this.  1: take out the snes pcb completely and install a custom one that doesn't compress the data (almost impossible you'd have to build a custom pcb)

or 2: get a snes controller information decoder chip/ic and decode the controller information into straight pin data......(again not easy)

when my neo geo comes in I'm just hooking it straight into my arcade sticks

XianXi

I figured that is what it would be. Thanks. Looks like I'll just make him 2 dedicated SNES Neo pads instead.

Drakon

Quote from: XianXi on November 28, 2008, 03:12:51 AM
I figured that is what it would be. Thanks. Looks like I'll just make him 2 dedicated SNES Neo pads instead.

well there's other stuff I guess.  You could take an existing snes pcb, desolder the encoder chip, and try to find somewhere on the back to connect the button wires.  No matter how you go at this it's not an easy job

NFG

There's no dedicated decoding chip in the SNES as far as I remember.  Am I confused or are you, Drakon?

Drakon

#5
Quote from: Lawrence on November 28, 2008, 01:31:59 PM
There's no dedicated decoding chip in the SNES as far as I remember.  Am I confused or are you, Drakon?

oh probably me.  I've never taken a look at what decodes the controller information at the snes end.  So I was just assuming there

but I guess for this project the ideal thing to do would be to find something that decodes the snes controller information.  Considering neo geo is just straight wires for each button.

kendrick

At GamesX, we do complicated research and pass the savings on to you. :) I saw this fun little item on Hackaday:

http://www.adafruit.com/index.php?main_page=product_info&cPath=30&products_id=133

It's meant to be a self-contained console, and the SD slot is a big turnoff.  But it does already have SNES controller ports, and since it's already doing the decoding it would be trivial to add an output interface with the right code supporting it.

Drakon

Quote from: kendrick on November 29, 2008, 02:31:17 AM
At GamesX, we do complicated research and pass the savings on to you. :) I saw this fun little item on Hackaday:

http://www.adafruit.com/index.php?main_page=product_info&cPath=30&products_id=133

It's meant to be a self-contained console, and the SD slot is a big turnoff.  But it does already have SNES controller ports, and since it's already doing the decoding it would be trivial to add an output interface with the right code supporting it.

whow that thing is awesome

RGB32E

Quote from: Drakon on November 29, 2008, 03:27:47 PM
Quote from: kendrick on November 29, 2008, 02:31:17 AM
At GamesX, we do complicated research and pass the savings on to you. :) I saw this fun little item on Hackaday:

http://www.adafruit.com/index.php?main_page=product_info&cPath=30&products_id=133

It's meant to be a self-contained console, and the SD slot is a big turnoff.  But it does already have SNES controller ports, and since it's already doing the decoding it would be trivial to add an output interface with the right code supporting it.

whow that thing is awesome
Looks like fun stuff... http://www.adafruit.com/images/large/fuzebox_LRG.jpg
It appears to use an AD725AD... so the unit can easily be modded for RGB!  :P

viletim

It doesn't look so interesting to me, it's just a microcontroller. All sound/video done in software - a real waste of CPU potential.