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

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

Postby Phreeze » 2017-11-29 @ 13:51

please PM those members, i hope they have email alerts on, if they don't look at the thread daily ! :O :O
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby jolurove » 2017-11-29 @ 21:06

Hello.. I would be interested in this! Just saw the thread. But I can't find who to contact to get in the list. Is it too late?
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby 640K!enough » 2017-11-29 @ 21:50

jolurove wrote:Hello.. I would be interested in this! Just saw the thread. But I can't find who to contact to get in the list. Is it too late?

I believe it is too late. From my understanding, it is only open to those who contributed financially during the donation period (now closed), or made a technical contribution to the project.
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby jolurove » 2017-11-29 @ 21:54

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

Postby Synoptic » 2017-11-30 @ 01:18

shock__ wrote:Just a quick reminder ... deadline is in 4 days ;)
Currently I have 15 people who signalized interest, yet 8 who paid.
If we get the full 15 people, we can get a gold surface and a different colored soldermask for free (only thing missing compared to the series run would be the lack of hardplated gold connectors).


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

Postby shock__ » 2017-12-01 @ 12:23

12 instead of 10 people paid up already - which means:
https://youtu.be/HnzH15hwt48?t=21s
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby Phreeze » 2017-12-01 @ 14:29

ahhhh the sound and schmell of gold !
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby wbc » 2017-12-01 @ 19:38

shock__ wrote:12 instead of 10 people paid up already - which means:
https://youtu.be/HnzH15hwt48?t=21s

:lol:

PMed also, thanks for reminder :)
--wbcbz7
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby shock__ » 2017-12-03 @ 18:34

Good news everyone! Everyone paid, 14 prototypes will be produced :)
I'll give you a heads up once the order has been sent out.
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby hard1k » 2017-12-03 @ 20:11

Great! So does this mean we'll get a gold surface and a different colored soldermask for free?
What color will you take? :)
Please have a look at my wishlist (hosted at Amibay)
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby Batyra » 2017-12-03 @ 20:21

Nice!
Great to hear!
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby matze79 » 2017-12-03 @ 22:18

of course, we should take vogons purple :)

EDIT: In case more people hop onboard of the prototype run and the boards getting cheaper, I will either use the excess money for additional features (maybe gold surface or blue soldermask, hardgold for connectors probably isn't in with a setup fee of 150€) if everyone agrees with that or you could get a refund or donate the money once again (as I'm earning virtually nothing from a financial standpoint).
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby shock__ » 2017-12-03 @ 23:20

Purple isn't offered and I'm kinda leaning towards spending the little excess per card on buying proper boxes for transport, rather than spending days salvaging the neighbours paper trash or building my own boxes.
Afterall proper transit is more important than the color of the PCB, which is still "kinda expensive" with each tester contributing ~5.20€
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby matze79 » 2017-12-04 @ 13:01

is the BOM above final ? or still a WIP ?
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby Whiskey » 2017-12-04 @ 13:13

matze79, I'm under the impression that this is a small run of the board prototype for the smart guys to test and work out the kinks (if any) with. At least I hope that's the case, as I donated to qualify for a card on the production run.
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby 640K!enough » 2017-12-04 @ 22:57

Whiskey wrote:matze79, I'm under the impression that this is a small run of the board prototype for the smart guys to test and work out the kinks (if any) with. At least I hope that's the case, as I donated to qualify for a card on the production run.

That's correct; this is just a prototype run for additional experimentation and testing. The question was regarding the BOM, or bill-of-materials (a.k.a. parts list) necessary to assemble a board. It is my understanding that the list assembled above is for three boards, plus some extras. However the board may be revised between now and the final production run, which is tentatively scheduled for order next year (2018).

It may not be a bad idea for at least some of those participating in the prototype stage to assemble their own BOM independently, so that we can observe the effects of using different parts. I plan to do just that.
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby keropi » 2017-12-05 @ 00:57

any chance anyone makes a farnell or rs-components BOM?
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby shock__ » 2017-12-05 @ 17:55

It's happening (with a slight delay).
order.png

Order for 15 boards has been sent out.
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby shock__ » 2017-12-05 @ 18:05

640K!enough wrote:It may not be a bad idea for at least some of those participating in the prototype stage to assemble their own BOM independently, so that we can observe the effects of using different parts. I plan to do just that.
I like that :) Personally I intend to keep "hand holding" at a minimum for people participating in the prototype run, as a preparation for the full production run.

There's one error in the BOM, with a single capacitor having a value of 10nF, when it should be 100nF (don't recall which one, as I already fixed that in my documents and announced oversight that on both forums on which I maintain the project).
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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Postby 640K!enough » 2017-12-06 @ 17:42

I've been doing a little more testing on my flash programming software, along with a salvaged guinea-pig 29LV160. I haven't added support for the "fast mode" supported by some variants to reduce programming time, but I can successfully write the contents of a ROM image to the chip and verify it. I mention this because, if we can manage to pick up enough of the chips, I will be doing more testing with a newer ROM module and a full 4 MiB bank, with the assistance of at least one other person on the prototype team. Not all of the boards are ready yet, but details and samples will be on the way, though there may be a slight delay, due to holiday shipping schedules.
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