MiSTer FPGA Forum

Would be amazing, and they make their documentation freely and easily available :

https://github.com/SudoMaker/RetroWave

Does this seem feasible?

I just hope that all those who wrote nasty condescending posts about how "it can never be done, stop asking" maybe take a step back and use a bit of measured optimism going forwards.

So excited about the progress, hope he can take it all the way! Looks promising.

Bump!

Any wider interest in seeing the RetroWave OPL3 connect to the MiSTer FPGA in similar fashion to MT32-pi? Happy to create a crowdfund page for it.

In full support of RetroWave OPL3 interfacing with the MiSTer!

sofakng wrote: ↑Mon Mar 13, 2023 5:42 pm

Sorry, I'm still not sure what you mean though. The older device (which I have) does have the Raspberry Pi 40-pin GPIO headers, but it communicates using USB just like the newer "OPL3 Express".

I think both Retrowave devices are similar but the "express" was created due to the chip shortage.

Understood, my bad.

sofakng wrote: ↑Sat Mar 11, 2023 4:04 pm

They still do... it's now called the RetroWave OPL3 Express.

Yes I brought it up a few times in the thread haha, the Express is USB and the older (now unavailable) one is 40-pin GPIO.

blacklistedcard wrote: ↑Thu Mar 09, 2023 7:51 pm

Would the USB PI solution work?

https://www.hackster.io/news/sudomaker- ... 23fb502e5c

Dwaine

They don't make them anymore

And in the spirit of preservation, is there anything stopping a dedicated FPGA-based OPL3 add-on from interfacing with MiSTer? (they exist!). No sense trying to eek out EVERY single (possibly buggy) droplet of sweat from the poor DE-10.

Look at the success of the MT-32pi - there are certain things better suited to being add-ons. Can only speak for myself, but the thought of seeing a physical OPL3 chip attached to the MiSTer (and subsequently having Literally Perfect results) is exciting.

Yes, I struck up a convo with the creator's on his Discord, and he's aware of MiSTer but doesn't own one. He's interested though!

My apologies, I didn't realize there's an entire thread dedicated to this already.

Honestly the RetroWave OPL3 through USB seems to bridge the gap. Someone even wrote a DOS driver for it - which might just require USB support in a AO486 DOS environment -- but a MT32-pi style interaction seems much much cleaner.

That's definitely interesting! Anything based off the 'nuked' implementation is basically as good as the real thing, and JTOPL definitely is! But yes, OPL2.

I know this seems niche, but in the spirit of preservation it's without question a huge part of the 90s PC experience.

They both work, just incomplete. Been getting a lot of freezing, incorrect playback, I think the rhythm channel is not implemented at all, etc.

Hey! Just wondering if there was any more on the subject of hybrid in ao486. It's so great to have this core, it's just slightly underpowered for a whole separate world of applications that would surely benefit from some hybrid speed improvements.

Was there something we could test if there was still some activity on this?

Newsdee wrote: ↑Thu Nov 17, 2022 5:58 am This would be nice to have... also if we could use a USB controller as MIDI input as well (such as the AKAI MPK mini)