Hi! Richard Atkinson wrote: > > Hi all. My latest acquisition is the Commodore Sound Expander for the > 64/128. It is a cartridge port device the same shape as the Magic Voice > and inside there is a Yamaha YM3526 FM synthesis chip, some logic for the > optional music keyboard port and a bit of analogue circuitry to output the > signal. Heey, is that chip like a Yamaha OPL2? > I think these units are fairly rare; anyway I want to find out as much as > I can about its registers. There is the possibility of routing the output > through the SID chip, so you can have 3 SID channels, 8 FM channels and > the filter applied to either of them. Does anyone have any documentation > on this thing? As always, the Commodore-supplied software and docs are a > little lacking, to put it mildly. If I'm right, and it's an OPL, then it's easy - there are a lot of docs about, say, programming the Adlib soundcard and the Soundblasters which have the same soundchip. Levente - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi.
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