It will be a while before my card becomes available and it will likely not have OPLx support until it goes FOSS. And MCA support will be after ISA - so at least mid-2020. So it's worth-while to press forward. I have a working test card for MCA that uses a MachXO2 and what I call 'full' level …

I'm just questioning the longevity of the thread. I'm not insisting on the board files. I understand the eBay issues but the whole point of the project is to drive GUS costs down somewhat - otherwise just fork out cash for an eBay card.

don't get how that's relevant tho. I hope everything works out smoothly for you. But once you get settled, this thread will hit is's 5th birthday. I'm not sure what the long term goals are. If the idea is to get cards in the hands of other people, why not release board files with conditional …

shock__ wrote: ...but keep in mind this is a one person project for the most part. Isn't that an intentional decision? Or is the project source open at all?

Are you sure about this? The documentation seems to imply that, in compatibility mode, the InterWave synthesiser does, in fact, produce output at rates other than 44.1 kHz. This is the reason that particular care must be taken in trying to use the serial transfer and/or external effect processing …

Perhaps we should start a separate thread? I can handle S/P-DIF output from the WB as well. That might be sufficient. Extending the 26-pins by 4-6 would work too I suppose. I don't have my final board fully layed out yet. But tentatively I was thinking I2C SDA/SCL for an optional eeprom on the …

I recently took detailed measurements from a number of sounds cards to get the WB footprint correct. It seemed like everything was snapped to an imperial grid. I arrived at the same 5050 x 3100 mil hole differences as Tiido with the same 250 mil offset to pin 1. Those translate to the same mm …

Cubic Player claimed to have support for 44.1KHz mixing of 32 channels and more than 1 MB of RAM . As SFK pointed out, it would be an interesting test to compare a reference wave form to GF1, IW with GUS compatibility flag and without and all three with a 14 vs 32 voice count. The IW always outputs …

I suspect that the source of the problems is the slight differences in timing between the two chips, resulting in a playback rate (and therefore audible pitch) that is slightly different on the InterWave. That is to say that the same software will produce different sound when running on a system …

I'm a little confused. DSS is auto-paced at 7 KHz irregardless of the host data rate. Wouldn't you need the strobe signal to know when a new data byte is written?

That is an interesting project. How much progress have you made? Will it be a pin-compatible replacement that could be substituted for the AMD part for testing? I nearly had the synth working last week when I ran into some timing issues. I ordered faster parts but they just came in today and I'm …

I think we're talking about different frames; I was referring to a GUS synthesiser frame, which, at 44.1 kHz, lasts less than 22.7 microseconds. I suspect that that's when register changes will be applied, so if one changes the number of active voices, but doesn't complete all of the corresponding …

Do you plan to sell these commercially? Any idea what the assembled/shipped price will be for an initial full run? ballpark? Thanks