Opl3 player module

[Grumble]

I'm working on an OPL3 player module.
Started ordering a few YMF262 Yamaha FM chips, which have been used in a lot of synthesizers in the 80ties. Along with these YMF262 I ordered some DAC chips YAC512.
The module is far from ready, but the basics work, I can select from 128 instruments and have them played frm the internal midi and gate.
Todo is to have the ext. midi to work so I can play from a polyphone keyboard or ext. sequencer.
Also I want to be able to change the instrument parameters so I can fiddle around with the sound of the instruments.

Here a link to my OPL3 player:
https://youtu.be/-WvVVEAcwWw

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[Grumble]

Have been playing around with this new module. As for the hardware it's nearly finished, but the software is another story
Originally I put a MCP6044 quad opamp in this module, but it sounded terribly.
I didn't realized that an opamp could make such a difference in a simple circuit like the output circuit of this module.
So I made an audio file with three opamps: first the TLC274, the MCP6044 and last one the MCP6284.
The MCP6044 (that's the most "expensive" of the three 1.75€) is the worst qua sound, while the MCP6284 (the cheapest, 1,39€) sounds the best to me...
Also I am asked for the diagram of this module, so I added it as well.

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three_opamps.wav
Description:	first 20 sec is a TLC274, next 20 sec is a MCP6044 and last 20 sec is a MCP6284 output stage	Download
Filename:	three_opamps.wav
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OP3 player.pdf
Description:		Download
Filename:	OP3 player.pdf
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[lazarusr]

Really nice project. A while back, I made a 'sound card' for the BBC Micro (British 8-bit 6502 computer from the '80s) based on the YM3812 (OPL2). Details here: https://github.com/lazarusr/BeebOPL and some sample tunes here: https://soundcloud.com/user-469563483/sets/beebopl-1

I am now working on a similar project using the YMF262. Although, not going as smoothly as I had hoped.

I'd love to see any updates on your OPL3 module. Also, would you be prepared to share your Arduino source code?

[Grumble]

IT's POLYPHONIC (6 voices)

[Blue Hell]

cool!

[Grumble]

Second iteration, this time I used a Stm32 Blue Pill.

edit: corrected an omission in the Schematic

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OPL3 player.pdf
Description:		Download
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[Grumble]

[Grumble]

Small changes made.
Now the clock frequency for the YMF262 is generated by the BluePill.

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YMF262_Euro.zip
Description:	Zip file with the Arduino code for the BluePill STM32F103C	Download
Filename:	YMF262_Euro.zip
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OPL3 player BP clock.pdf
Description:	new schematic with clock for YMF262 provided by the BluePill STM32F103C	Download
Filename:	OPL3 player BP clock.pdf
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[RykAntoniuk]

Whoa! Well done!