MiSTer FPGA Forum

Bought a snac-adapter and tried my nes-004 controller with it. That didn’t work. Any ideas how to get it working?

I thought all original controllers works with snac using the correct adapters. Apparantly not.

It absolutely does work. But only in the NES core, and you have to enable serial in the settings of that core for it to be enabled.

The SNAC board has some secret undocumented jumpers on it, I'm not sure, but you may have to enable or disable one of them.

anderse77 wrote: ↑Tue Aug 23, 2022 2:21 pm Bought a snac-adapter and tried my nes-004 controller with it. That didn’t work. Any ideas how to get it working?

I thought all original controllers works with snac using the correct adapters. Apparantly not.

As said the SNAC controllers only work in core. You can't operate the OSD with it and you have to activate the serial SNAC port in the core settings. Try that first and if it still does not work write us again.

I know that it only should work in games in the specific core. My original snes controller works with SNAC on the snes core when I enable snac and play a game.

My NES controller does not work on the NES core when I set SNAC to Controllers.

Do you mean jumpers on the i/o board or on the SNAC adapter itself?

anderse77 wrote: ↑Tue Aug 23, 2022 9:45 pm I know that it only should work in games in the specific core. My original snes controller works with SNAC on the snes core when I enable snac and play a game.

My NES controller does not work on the NES core when I set SNAC to Controllers.

Do you mean jumpers on the i/o board or on the SNAC adapter itself?

Should no be the jumpers because if your SNES controller works the NES should also work. Maybe the controller itself isn't working or the NES adapter is faulty?

I’ll try to check the controller with original console.

@anderse77, have you tried not plugging it in all the way?

Skip to 8:04 in this video (different device, the "Triple Controller", but maybe same problem) for example.

I need an adapter to connect my old NES to my vm8833 mk2. I however tested my old NES Zapper and it worked with the SNAC adapter. That means adapter is fully working, right?

I tried to not plug in the controller all the way. It still did not work, however.

anderse77 wrote: ↑Wed Aug 24, 2022 8:12 pm I however tested my old NES Zapper and it worked with the SNAC adapter. That means adapter is fully working, right?

A zapper uses different pins than a controller.

Does your SNES controller work in the NES core? Also, does your NES controller work in the SNES core?

paulbnl wrote: ↑Mon Aug 29, 2022 12:57 pm

anderse77 wrote: ↑Wed Aug 24, 2022 8:12 pm I however tested my old NES Zapper and it worked with the SNAC adapter. That means adapter is fully working, right?

A zapper uses different pins than a controller.

Does your SNES controller work in the NES core? Also, does your NES controller work in the SNES core?

Why should the NES work on the SNES?

ONLY NES-004E controllers work with SNAC.

The NES SNAC connection is picky. See here how all the SNAC Adapters work withe different settings on a Multisystem where you can change voltage and IO setting:

Master System 5V 3.3V IO6
Mega Drive 3 Button 5V 3.3V IO6
Mega Drive 6 Button 5V 3.3V IO6
NES 5V IO6
SNES 5V 3.3V IO6 IOMister
PCE 5V 3.3V IO6 IOMister
PSX 3.3V IO6

https://tetrissuomi.wordpress.com/engli ... atibility/ - you could try and solder two resistors to make it "E-compatible" and see if that works. I'm not aware of any restriction on the controller compatibility though.