Amazing ! congratulations!

oh this is truly awesome news for MCA owners!

Very nice ~

Oh dear, The Holy Grail of MicroChannel users has finally been found!

Awesome. So much for those sellers on eBay wanting hundreds or over a thousand dollars for a MCA sound blaster card. hahahahaha.

Oof gonna have to get one of these at some point. Resound 2 is fine for DOS and Win 95 but I need some Windows 3.1 action. If this had a wavetable header it would be even better. Anyone doing a board order?

Out of curiosity: Is the a reverse engineer job of the SoundBlaster MCA or a own redesign of the reverse engineered SoundBlaster ISA?

Yeah!

Fantastic news! As I don't own a PS/2 I won't be building one this time around, but I am glad this happened!

This is a fantastic achievement !
I took the liberty of submitting to Hackaday and they just posted it .
https://hackaday.com/2020/12/01/giving-micro- … d-blaster-bark/

gordon-creAtive.com wrote on 2020-12-01, 08:06:

Out of curiosity: Is the a reverse engineer job of the SoundBlaster MCA or a own redesign of the reverse engineered SoundBlaster ISA?

Both. The Sound Blaster part is based on the work I did with the Snark Barker ISA. The Micro Channel interface is mostly my own design which involved careful study of what (little) information I could find on the Sound Blaster MCV family of cards as well as the 82C612 bus interface chip.

Amazing work. Congrats on getting it working. It finally makes MCA-based PS/2 systems (and those few rare MCA-based clone systems) suitable for retro gaming. 👍

BTW, what's the success ratio of running software with SB SFX on MCA?
Once upon a time I saw some complaints about it failing due to DMA handling differences between ISA and MCA - is it a serious problem, affecting many important titles?

Grzyb wrote on 2020-12-03, 00:58:

BTW, what's the success ratio of running software with SB SFX on MCA?
Once upon a time I saw some complaints about it failing due to DMA handling differences between ISA and MCA - is it a serious problem, affecting many important titles?

Not that I can tell, but I haven't tested a large number of titles.

If someone wants to do a run and sell me one, and if the price is reasonable, I wouldn't mind buying one of these for my IBM PS/2 running OS/2!

OzzFan wrote on 2020-12-04, 12:57:

If someone wants to do a run and sell me one, and if the price is reasonable, I wouldn't mind buying one of these for my IBM PS/2 running OS/2!

Ditto. I'd try it myself if it weren't for that chip with the tiny leads... oof, nty.

Btw I found a possible problem in the parts list? This mouser # is listed twice 603-CFR-25JB-52-4K7.

Camtheman wrote on 2020-12-06, 06:39:

OzzFan wrote on 2020-12-04, 12:57:

If someone wants to do a run and sell me one, and if the price is reasonable, I wouldn't mind buying one of these for my IBM PS/2 running OS/2!

Ditto. I'd try it myself if it weren't for that chip with the tiny leads... oof, nty.

Btw I found a possible problem in the parts list? This mouser # is listed twice 603-CFR-25JB-52-4K7.

The tiny-leaded component isn't really all that bad. I hand soldered it on the cards that I've built. Basically I line it up as best as I can using a microscope, a loupe, or a cellphone camera. Then I tack solder one corner pin, check the alignment, then tack solder the other corner pin. Then I go through and solder all the rest of the pins, using solder braid to clear any short circuits. Use lots of solder flux too.

The part numbers are correct, but that one line item got split into two due to a silly schematic issue which I just fixed and pushed to the repository.

Hmm. Interesting. Might give it a go. Have you tested the card in Windows 3.1 and/or OS/2? Had issues with purportedly compatible cards being not compatible. Want to make sure =P

Camtheman wrote on 2020-12-07, 11:26:

Hmm. Interesting. Might give it a go. Have you tested the card in Windows 3.1 and/or OS/2? Had issues with purportedly compatible cards being not compatible. Want to make sure =P

I have not. In theory it should work, but who knows.