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Re: The YMU762 Research

in Marvin \ Sound
Nikita Lita wrote on 2022-04-13, 14:59: kb77 wrote on 2022-04-13, 14:04: Nikita Lita wrote on 2022-04-13, 07:26: The discord link is expired, is there a new one? Don't think so. I found it, it’s here: https://discord.gg/p33HMWPx I stand corrected. Thanks for posting the new one 😀

Re: The YMU762 Research

in Marvin \ Sound
I also did quite a lot of MA-2/3/5 reverse engineering two years ago and need to brush off on it and compare notes. My goal was also to make new use of those chips (on Famicom carts). So I made a board for it that transforms its pinout to OPN2 pinout.. Just because its easier to integrate in …

Re: The YMU762 Research

in Marvin \ Sound
While I'm guessing Yamaha probably doesn't care, I might have to find someone to clean room reverse engineer it for that to happen. Haven't found anyone that cares as much as I do to actually help me with that. Oh well. My "OPL player" is actually a stripped down MA3 middleware, with just "machdep" …

Re: The YMU762 Research

in Marvin \ Sound
Ymu765-s have just arrived. If only there was some "leaked middleware" somewhere ;) Now the question is if it is going to work with the Ymu762 code. I still have Ymu759 board that was my target initially, I will replace the chip and see what is the result. MA5 has the same FM capabilities as MA3, …

Re: The YMU762 Research

in Marvin \ Sound
Ymu765-s have just arrived. If only there was some "leaked middleware" somewhere ;) Now the question is if it is going to work with the Ymu762 code. I still have Ymu759 board that was my target initially, I will replace the chip and see what is the result. MA5 has the same FM capabilities as MA3, …

Re: The YMU762 Research

in Marvin \ Sound
That Russian site even has a youtube demo video : https://youtu.be/qqYftv_KT-s Another guy, Konrad, made many more demos, based on the same MA-3 middleware code (see zip in my first post) : NaariaylLove.mmf : https://youtu.be/NvPzxPiDSsY FamiCommodore.mid : https://youtu.be/OF20K_QSMMo Body&body : …

Re: The YMU762 Research

in Marvin \ Sound
I need to work on that, but I dont have the time sorry. I want to eventually release my notes in a clear manner. If you just put the raw dumps somewhere we could cross reference them with the logs I got while playing various MMF-s with the MA3 middleware, like this (simple) one: https://gist.github …

Re: The YMU762 Research

in Marvin \ Sound
Ah, I see. That makes sense why it was unportable then. Still, he used them and had enough familiarity with the MA-2 to write a tracker. He might have some insight to the chip anyway, at least at the register level. Not really. The DLL-s that Delek used expose the "SMAF" interface, not the MA …

Re: The YMU762 Research

in Marvin \ Sound
I also did quite a lot of MA-2/3/5 reverse engineering two years ago and need to brush off on it and compare notes. My goal was also to make new use of those chips (on Famicom carts). So I made a board for it that transforms its pinout to OPN2 pinout.. Just because its easier to integrate in …

Re: The YMU762 Research

in Marvin \ Sound
Guys, why did't you ask me about this directly ? ;) @plgDavid - nice work, I gave up doing the same (I bought a few old Samsung and Siemens phones, but none of them had pads easily available). I would be interested in seeing your dumps - the board that I use for experiments has MA-3, but my first …

Re: Need a DIY MIDI FM synth module

in Marvin \ Sound
I'm not sure, how the Arduino can help me with programming. It's just a development board for a AVR microcontroller. Also, my musical abilities sucks just like the programming skills. To create musical synthesizer firmware, knowledge of musical theory most likely needed. The weak documentation for …

Re: Pentium II Win'98SE Retro Rig.

Arrgghhh.... Ymf724 + Als4000 is not the best combination in fact. I did not manage to relocate OPL3 from Ymf724 card to e.g. 0x398 (although this seemed to be possible). I did not find any option in the Als4000 drivers to do so either. OK, next attempt would be with the ALS007 ISA card - not only …

Re: Pentium II Win'98SE Retro Rig.

AGP implementation in those early boards (ALI, SIS, Intel LX), well... sucks. High demand for electricity is not covered by circuits on the board. However, S3 Trio 3D works stable :) Maybe ATI Rage Pro is also good choice if you want to be period correct. Zyga, come back to the C64Power please, we …

Re: Pentium II Win'98SE Retro Rig.

I bought two such boards - they came with Celeron (333 MHz), YMF724 based PCI sound cards, S3 Trio 3D AGP graphics card and some oldschool network card (BNC+RJ) that I got rid of immediately. I think I got them from the same source (ha ! they also have Adax stickers), as they were pretty dirty ;) …

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