Success: OPL2 Sound Card

Hardware
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I built the OPL2 sound card over the weekend and it worked perfectly from first power up! Thanks for designing this - it’s going to be lots of fun to play with.

OP2_card
OP2_card1080×1440 328 KB

I’ve successfully run and modified the demo assembly language program located in the tests folder. Now I’m going to follow this project - YM3812 Part 1 - Register Basics - Things Made Simple to try to figure out how to convert from his Arduino-oriented C++ to Forth to make the card more accessible from the Planck.

This should keep me busy for many months! :slight_smile:

Jonathan, thanks again for all of this!

2 Likes
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Hi Ben,
yeah the sound card is really fun. I’ve actually been testing a MIDI card as well (which is just a serial interface with a weird frequency) and I’ve been able to play some sounds from a keyboard to the OPL2 card. It’s quite fun! I’d like to try and code a tracker as well, but to make one that is comfortable to use through a serial interface is not obvious to me, so I’ve been tinkering with some sort of VGA interface to be able to output something directly to a screen.
Anyway, as you say, many months of fun to be had!