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Forums > C64 Composing > YM3812 (OPL2) register write timing on the Commodore 64
2019-12-24 12:28
Mr. Mouse

Registered: Dec 2001
Posts: 227
YM3812 (OPL2) register write timing on the Commodore 64

For those interested sound freaks, experimenting with SID+FM or FM alone (with FM-YAM or Sound Expander), I did some timing analysis on the chip addressing and data writes.

http://c64.xentax.com/index.php/15-testing-ym3812-register-writ..

Perhaps it will be of use.
2019-12-24 13:16
Rudi

Registered: May 2010
Posts: 124
Nice work. I did some programming for the Adlib a couple of years back, and i think any additional documentation is welcome imho.
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