VOGONS


Reply 2780 of 3022, by terryfi

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terryfi wrote on 2022-04-11, 16:22:
Has anyone checked out this professor's posting a thesis project proposal to implement GF1 on FGPA? […]
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shock__ wrote on 2022-04-11, 14:00:

As said in the comment section on LGR's video ... if anyone synthesizes a compatible FPGA, I'd be more than willing to adapt the current ARGUS design.
Otherwise at least the PCB production files are gonna go public in 6 months so some price can be shaven off there.

I'd welcome to cut price discussions short tho - capitalism sucks, we all know that.

Has anyone checked out this professor's posting a thesis project proposal to implement GF1 on FGPA?

https://www.mit.bme.hu/eng/node/9797

Apparently this was back in 2015, and there is some discussion about it on MisterFPGA forum.

https://misterfpga.org/viewtopic.php?t=2994

I am not an expert but many of hardware emulations are forked from some kind of software implementation.
To my knowledge, dosbox has FM OPL2 emulation but nothing with wavetable.

However PcEm seems to support GUS, source code below:
https://github.com/sarah-walker-pcem/pcem/blo … und/sound_gus.c

I also learned about FluidSynth included in M32-Pi project which might also be a good reference for wavetable synthesis, link below:
https://github.com/FluidSynth/fluidsynth

Reply 2781 of 3022, by Shponglefan

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Does anyone know if there are any plans to sell mounting brackets for this particular card? I see in the past it looks like there was some being manufactured and sold.

Just wondering if anyone will be undertaking that for this go-round?

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Reply 2782 of 3022, by terryfi

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Shponglefan wrote on 2022-04-12, 15:14:

Does anyone know if there are any plans to sell mounting brackets for this particular card? I see in the past it looks like there was some being manufactured and sold.

Just wondering if anyone will be undertaking that for this go-round?

Based on what I read in forum the bracket is one for a generic sound card with joystick port, Creative, Yamaha, etc.. It is probably cheaper to purchase a PCI sound card locally for less than 10 USD and extract the bracket.

Another option is 3D printing from sketch here:

https://www.thingiverse.com/thing:4950171

The only caveat is extra connector hole on top, if that bothers you, you have look harder for a card that doesn't have it

Reply 2783 of 3022, by Sunoo

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terryfi wrote on 2022-04-12, 15:32:

Another option is 3D printing from sketch here:

https://www.thingiverse.com/thing:4950171

The only caveat is extra connector hole on top, if that bothers you, you have look harder for a card that doesn't have it

Does that line up otherwise? I could certainly adapt the model if needed to fit the Argus. I was kinda assuming I’d need to model something from scratch, so if this at least mostly works, that saves me a bunch of effort.

Reply 2784 of 3022, by terryfi

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Sunoo wrote on 2022-04-12, 15:36:
terryfi wrote on 2022-04-12, 15:32:

Another option is 3D printing from sketch here:

https://www.thingiverse.com/thing:4950171

The only caveat is extra connector hole on top, if that bothers you, you have look harder for a card that doesn't have it

Does that line up otherwise? I could certainly adapt the model if needed to fit the Argus. I was kinda assuming I’d need to model something from scratch, so if this at least mostly works, that saves me a bunch of effort.

To my eyes they line up, attached photo comparison.

ARGUS gurus can can confirm 😀
I don't have any PCIs with joystick port but all of ISA's without volume knob the holes line up; so there must be some common standard.
I am sure anyone has one other ISA PCI card around; why not try that first.

Update:
Found post by dopefish, he has attached VIBRA16 bracket on ARGUS:
ARGUS Project thread - now accepting pre-orders (for north/south American and Europe)

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Reply 2785 of 3022, by matze79

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terryfi wrote on 2022-04-10, 22:15:

Let's put it this way. This is an expensive DIY barebone kit. The reason is lack of supply for Interwave chip; and guess why Interwave chips are short in supply? Because people are stacking them up in hoping to make tons of these cards and make profit.

Hm 8$ is ok for one IC.
Ok not really cheap but ok.

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https://www.retroianer.de - under constructing since ever

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Reply 2786 of 3022, by Shponglefan

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terryfi wrote on 2022-04-12, 15:32:

Based on what I read in forum the bracket is one for a generic sound card with joystick port, Creative, Yamaha, etc.. It is probably cheaper to purchase a PCI sound card locally for less than 10 USD and extract the bracket.

If I can get something that lines up properly, I might go that route.

Given the time and investment to bring this card to life, I just didn't want to skimp out on the bracket and wind up with something that looks janky. The extra investment to make it look professional is worth it to me.

My YouTube channel (retro game music)

Reply 2787 of 3022, by kendair

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Shponglefan wrote on 2022-04-12, 19:45:
terryfi wrote on 2022-04-12, 15:32:

Based on what I read in forum the bracket is one for a generic sound card with joystick port, Creative, Yamaha, etc.. It is probably cheaper to purchase a PCI sound card locally for less than 10 USD and extract the bracket.

If I can get something that lines up properly, I might go that route.

Given the time and investment to bring this card to life, I just didn't want to skimp out on the bracket and wind up with something that looks janky. The extra investment to make it look professional is worth it to me.

I found this in this topic, i'll go with this way, if i get my card.

Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Reply 2788 of 3022, by Sunoo

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kendair wrote on 2022-04-12, 21:19:

I found this in this topic, i'll go with this way, if i get my card.

Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Any idea how we’d go about getting these made? All else being equal I’d rather a real metal bracket than something 3D printed.

Reply 2789 of 3022, by Nikita Lita

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For references' sake, the decapped Interwave chip pictures have been uploaded here:

https://siliconpr0n.org/map/amd/94201b/mz_mit … 1024&y=8304&z=3

https://siliconpr0n.org/map/amd/94201c/

Reply 2790 of 3022, by Nikita Lita

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Sunoo wrote on 2022-04-12, 21:31:
kendair wrote on 2022-04-12, 21:19:

I found this in this topic, i'll go with this way, if i get my card.

Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Any idea how we’d go about getting these made? All else being equal I’d rather a real metal bracket than something 3D printed.

laser cutter, metal punch (or brake), and a belt sander. Easy peasy; your local hacker space should probably have all of these.

Reply 2791 of 3022, by pan069

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Nikita Lita wrote on 2022-04-14, 22:03:
Sunoo wrote on 2022-04-12, 21:31:
kendair wrote on 2022-04-12, 21:19:

I found this in this topic, i'll go with this way, if i get my card.

Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Any idea how we’d go about getting these made? All else being equal I’d rather a real metal bracket than something 3D printed.

laser cutter, metal punch (or brake), and a belt sander. Easy peasy; your local hacker space should probably have all of these.

There is also bracket.com, not sure if its finacially viable. It looks interesing but never got a quote. I've been looking for a bracket for my Snark Barker.

http://www.bracket.com/products/brackets/index.html

Reply 2792 of 3022, by holaplaneta

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Nikita Lita wrote on 2022-04-14, 22:01:

For references' sake, the decapped Interwave chip pictures have been uploaded here:

https://siliconpr0n.org/map/amd/94201b/mz_mit … 1024&y=8304&z=3

https://siliconpr0n.org/map/amd/94201c/

This is great!!! Here´s hoping one day we can see the GF1 chip there as well so someone may make a FPGA implementation of it.

Maybe someone like this professor?

terryfi wrote on 2022-04-11, 16:22:
Has anyone checked out this professor's posting a thesis project proposal to implement GF1 on FGPA? […]
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Has anyone checked out this professor's posting a thesis project proposal to implement GF1 on FGPA?

https://www.mit.bme.hu/eng/node/9797

Apparently this was back in 2015, and there is some discussion about it on MisterFPGA forum.

https://misterfpga.org/viewtopic.php?t=2994

Reply 2793 of 3022, by Thermalwrong

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🤣, my Autodesk EAGLE 'service' got bumped down to Free level rather than Standard, so now I can't finish the design I was working on back in January. It just gives an error because the board (a regular 16-bit ISA) is too big for the free version.
Time to start remaking the GUSt and all its components in KiCAD.
Should be less of a mess than the fusion 360 / eagle cloud stuff.

So far, have got the Interwave's symbol and its footprint remade. There's less in KiCAD that's ready made it seems.

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Reply 2794 of 3022, by Shishkebarbarian

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terryfi wrote on 2022-03-25, 18:18:
If your main goal is to play mod trackers on an older machine, why not going for an AWE32 for less than 80 USD? I've seen some A […]
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Berzerkula wrote on 2022-03-24, 03:00:
Shishkebarbarian wrote on 2022-03-21, 16:59:

just saw this on LGR Blerbs. if this project ever goes anywhere, or anyone makes more of these, i would really like to buy one.

Indubitably! I love this!

If your main goal is to play mod trackers on an older machine, why not going for an AWE32 for less than 80 USD?
I've seen some AWE32 patches for some of the games with GUS support.
I've been recently seeing people spending 400-700 USD on Gravis card which doesn't make sense.
There are only 10-20 game titles supporting GUS. They must be really hardcore fans or extremely serious collectors for spending that much money.

I am actually very new to GUS so i'm still figuring it out - i havent heard of it until relatively recently, i was a Sound Blaster kid in the 90s. I am also a collector, though with a very small collection - I would love an original GUS. But you're right the 400-700 is out of my price range for such limited support. A good clone in the 100-200 range is something i can stomach with some planning. But as I am a fan of native hardware and a collector of such antiquities, emulation really doesn't interest me.

shock__ wrote on 2022-03-28, 11:19:
And nopes, still no interest in going semi-commercial (which the last 2 pages seem to be all about), but currently negotiating w […]
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And nopes, still no interest in going semi-commercial (which the last 2 pages seem to be all about), but currently negotiating with someone who might do a run for the american continents - they're currently deliberating my proposal.
...
If that fails, I'll sell off large parts of my remaining InterWave stock for profit and go open source (gerbers [yes, that would mean either going with the current state of the PCB or rerouting the card yourself] + BOM + editable schematic + documentation).

Therefore at the worst case you'll have a virtually open source GUS PnP in 6 months +/- 1-2 weeks.

Sorry I'm late to the discussion by several weeks, but i was part of those last 2 pages you mention. Your proposals all sound great and I look forward to seeing your work/effort shine in the public eye in one way or another. I hope there will be an announcement if anything comes of that American negotiation. I just hope I can afford it!

Reply 2795 of 3022, by IcySon55

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Synoptic wrote on 2022-04-11, 19:51:

I just got the gerber files from Shock__. I am still waiting for the Interwave chips, but I will start the PCB production in the meantime to minimize waiting time.

Mr. 20 of 20 here. Thanks a ton for this project!

I'm certainly in the no equipment or skills category but I'm willing to put in the effort to learn and build the card myself.

I think it'll be good training for future mod projects. I have quite a few HDMI boards to install in my consoles.

Last edited by IcySon55 on 2022-04-21, 01:17. Edited 1 time in total.

Reply 2796 of 3022, by Synoptic

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IcySon55 wrote on 2022-04-21, 01:06:
Mr. 20 of 20 here. Thanks a ton for this project! […]
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Synoptic wrote on 2022-04-11, 19:51:

I just got the gerber files from Shock__. I am still waiting for the Interwave chips, but I will start the PCB production in the meantime to minimize waiting time.

Mr. 20 of 20 here. Thanks a ton for this project!

I'm certainly in the no equipment or skills category but I'm willing to put in the effort to learn and build the card myself.

I think it'll be good training for future mod projects. I have quite a few HDMI board to install in consoles.

Awesome!

Reply 2797 of 3022, by Stevogamer

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IcySon55 wrote on 2022-04-21, 01:06:
Mr. 20 of 20 here. Thanks a ton for this project! […]
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Synoptic wrote on 2022-04-11, 19:51:

I just got the gerber files from Shock__. I am still waiting for the Interwave chips, but I will start the PCB production in the meantime to minimize waiting time.

Mr. 20 of 20 here. Thanks a ton for this project!

I'm certainly in the no equipment or skills category but I'm willing to put in the effort to learn and build the card myself.

I think it'll be good training for future mod projects. I have quite a few HDMI boards to install in my consoles.

I can definitely see building one of these cards being applicable practice for HDMI mods. Lots of patience and flux.

Reply 2798 of 3022, by Shponglefan

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IcySon55 wrote on 2022-04-21, 01:06:

I'm certainly in the no equipment or skills category but I'm willing to put in the effort to learn and build the card myself.

I think it'll be good training for future mod projects. I have quite a few HDMI boards to install in my consoles.

If you're looking to learn soldering, I'd highly recommend getting some soldering practice kits and train on those. Best to make any initial mistakes on a throwaway kit rather than something like an Argus PCB.

My YouTube channel (retro game music)

Reply 2799 of 3022, by Stevogamer

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Shponglefan wrote on 2022-04-21, 01:40:
IcySon55 wrote on 2022-04-21, 01:06:

I'm certainly in the no equipment or skills category but I'm willing to put in the effort to learn and build the card myself.

I think it'll be good training for future mod projects. I have quite a few HDMI boards to install in my consoles.

If you're looking to learn soldering, I'd highly recommend getting some soldering practice kits and train on those. Best to make any initial mistakes on a throwaway kit rather than something like an Argus PCB.

I can agree with that. Easy to burn off pads or damage other things if you don't have the right equipment or are unfamiliar with the techniques and tools.