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Control MiSTer Menu with SNAC?

Posted: Mon Dec 18, 2023 7:07 pm
by BinCo

As the title says. Trying to save some money and not by a jamma adapter and instead by db15 snac to drop into an arcade cabinet. Downfall of this so far is controlling the mister menu with snac. I don’t want to have any other controls besides a player 1 and player 2 controls on the cpo.

Found this on another forum but it is from 2020. Has anyone tried this or found a way to control the UI with snac?

https://www.atari-forum.com/viewtopic.php?t=38453


Re: Control MiSTer Menu with SNAC?

Posted: Mon Dec 18, 2023 9:30 pm
by FPGA64

you cant control the menu via Snac. Snac is linked direct to the core


Re: Control MiSTer Menu with SNAC?

Posted: Mon Dec 18, 2023 11:18 pm
by mercuryshadow09

Re: Control MiSTer Menu with SNAC?

Posted: Tue Dec 19, 2023 9:25 am
by FPGA64

I would not recomend Bliister. To get the low latency with that you have to use Forked Cores. Any forked core reliant thing runs the risk of the forked cores being behind the real cores.


Re: Control MiSTer Menu with SNAC?

Posted: Tue Dec 19, 2023 2:17 pm
by aberu

BlisSter won't allow lightguns to work afaik, whereas SNAC will, so suggesting it as a replacement of SNAC is not always going to be appropriate.

Also, BlisSter does not have any meaningful advantage over many modern usb controller adapters such as the following:

https://www.tindie.com/products/timvill ... t-adapter/ - (1.033ms input lag)

https://misteraddons.com/products/reflex-adapt - (0.84ms to 2.92ms input lag depending on controller type selected)

http://www.brunofreitas.com/node/84 - (0.711ms input lag)

And the popular (but now unavailable) iBuffalo usb controller has the lowest latency of every usb device tested by misteraddons:

https://www.amazon.com/Buffalo-iBuffalo ... B002B9XB0E - (0.69ms input lag)

You can find that one on eBay used and new for $10-30 USD.

You can find the latency reference chart I used here:

https://rpubs.com/misteraddons/inputlatency

Once you are around 1ms territory, that is extremely low lag that would be entirely imperceptible.


Re: Control MiSTer Menu with SNAC?

Posted: Tue Dec 19, 2023 8:34 pm
by antibolo

Using SNAC as your "primary" input makes no absolutely no sense whatsoever. It's not just that you cannot control the menu, you are also only going to be able to use cores that implement this specific kind of SNAC input (so in this case, pretty much only arcade cores).

Getting a USB-based solution will save you a LOT a trouble.


Re: Control MiSTer Menu with SNAC?

Posted: Tue Dec 19, 2023 11:40 pm
by mercuryshadow09
FPGA64 wrote: Tue Dec 19, 2023 9:25 am

I would not recomend Bliister. To get the low latency with that you have to use Forked Cores. Any forked core reliant thing runs the risk of the forked cores being behind the real cores.

It's basically USB through an HDMI, and you can turn on fast USB polling. I've had no issues with it and I can use any controller on the OSD and any core.

aberu wrote: Tue Dec 19, 2023 2:17 pm

BlisSter won't allow lightguns to work afaik, whereas SNAC will, so suggesting it as a replacement of SNAC is not always going to be appropriate.

Also, BlisSter does not have any meaningful advantage over many modern usb controller adapters such as the following:

https://www.tindie.com/products/timvill ... t-adapter/ - (1.033ms input lag)

https://misteraddons.com/products/reflex-adapt - (0.84ms to 2.92ms input lag depending on controller type selected)

http://www.brunofreitas.com/node/84 - (0.711ms input lag)

And the popular (but now unavailable) iBuffalo usb controller has the lowest latency of every usb device tested by misteraddons:

https://www.amazon.com/Buffalo-iBuffalo ... B002B9XB0E - (0.69ms input lag)

You can find that one on eBay used and new for $10-30 USD.

You can find the latency reference chart I used here:

https://rpubs.com/misteraddons/inputlatency

Once you are around 1ms territory, that is extremely low lag that would be entirely imperceptible.

True, it doesn't support lightguns. But the HDMI controller adapters are cheaper in the long run.


Re: Control MiSTer Menu with SNAC?

Posted: Wed Dec 20, 2023 1:35 am
by rhester72
mercuryshadow09 wrote: Tue Dec 19, 2023 11:40 pm

True, it doesn't support lightguns. But the HDMI controller adapters are cheaper in the long run.

...which is exactly what Reflex is as well, except it's supported out of the box.


Re: Control MiSTer Menu with SNAC?

Posted: Wed Dec 20, 2023 9:17 am
by FPGA64
mercuryshadow09 wrote: Tue Dec 19, 2023 11:40 pm
FPGA64 wrote: Tue Dec 19, 2023 9:25 am

I would not recomend Bliister. To get the low latency with that you have to use Forked Cores. Any forked core reliant thing runs the risk of the forked cores being behind the real cores.

It's basically USB through an HDMI, and you can turn on fast USB polling. I've had no issues with it and I can use any controller on the OSD and any core.

Thats not using it as snac though. Its just using a non standard board as a USB hub.