Klondike - 16 chip ASIC Open Source Board - Preliminary - page 55.

BkkCoins

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Quote from: marto74 on July 23, 2013, 07:28:42 AM

If you had similar box of Oscillators you could make a fortune

You can use some of the similar parts which Digikey has in stock. They're just more expensive but will work. I know "just".

ASDMB-32.000MHZ-LY-T is the same but 10ppm, Digikey has 922 pcs.
ASDMB-32.000MHZ-XY-T us the same but 125C temp range, and 10ppm DIgikey has 1010 pcs.

But they have a reel of 1000 of those ones for $1.35 each so if someone bought those for reselling here they could make a little probably, considering 100pcs at Digikey is 2.18 each.

BkkCoins

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Final Beta Revsion of K1 pushed to GitHub.

I posted details and renders here:

https://bitcointalksearch.org/topic/m.2787480

SebastianJu

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Quote from: sensei on July 23, 2013, 07:23:43 AM

Sourcing and ordering all the parts needed is no small task. I've ordered from about 8 different suppliers to get the various parts.

Here is a box I recently received that has about 150,000 resistors and capacitors for my Klodike build services.

I hope the parts arent esd-sensitive since those pink bags arent a protection against. This guy complains about it too and made tests: http://www.youtube.com/watch?v=imdtXcnywb8

marto74

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Quote from: sensei on July 23, 2013, 07:23:43 AM

Sourcing and ordering all the parts needed is no small task. I've ordered from about 8 different suppliers to get the various parts.

Here is a box I recently received that has about 150,000 resistors and capacitors for my Klodike build services.

If you had similar box of Oscillators you could make a fortune

sensei

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Sourcing and ordering all the parts needed is no small task. I've ordered from about 8 different suppliers to get the various parts.

Here is a box I recently received that has about 150,000 resistors and capacitors for my Klodike build services.

Bicknellski

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Quote from: Tornate on July 23, 2013, 04:34:50 AM

Does anyone have schematics of the following heatsink for K16?

Quote from: BkkCoins on July 23, 2013, 12:21:09 AM

Not sure why yours say D11. They should say GND. Those are the thermal vias. They conduct heat thru the board to the heat sink and GND plane. The extra holes won't matter but it's weird they're there. Of course, they show up on all because I copy/paste from U1 out to the others. The board is a comparatively good insulator, and the holes are plated, so the metal around the holes makes a channel thru the insulator.

Thank you for the explanation

PM marto74 I think he made those.

https://bitcointalksearch.org/topic/m.2432919

https://bitcointalksearch.org/topic/m.2235973 (Older Version)

Tornate

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Does anyone have schematics of the following heatsink for K16?

Quote from: BkkCoins on July 23, 2013, 12:21:09 AM

Not sure why yours say D11. They should say GND. Those are the thermal vias. They conduct heat thru the board to the heat sink and GND plane. The extra holes won't matter but it's weird they're there. Of course, they show up on all because I copy/paste from U1 out to the others. The board is a comparatively good insulator, and the holes are plated, so the metal around the holes makes a channel thru the insulator.

Thank you for the explanation

BkkCoins

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Quote from: Tornate on July 22, 2013, 11:55:41 PM

Quote from: BkkCoins on July 22, 2013, 11:27:22 PM

Obviously a mistake but I can't fathom how these extra holes get in there. Where is that from? What board and chip?

k16.drl
Under each Avalon chip.

Much appreciated for your response. By the way, what are those D11 holes for?

Not sure why yours say D11. They should say GND. Those are the thermal vias. They conduct heat thru the board to the heat sink and GND plane. The extra holes won't matter but it's weird they're there. Of course, they show up on all because I copy/paste from U1 out to the others. The board is a comparatively good insulator, and the holes are plated, so the metal around the holes makes a channel thru the insulator.

Tornate

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Quote from: BkkCoins on July 22, 2013, 11:27:22 PM

Obviously a mistake but I can't fathom how these extra holes get in there. Where is that from? What board and chip?

k16.drl
Under each Avalon chip.

Much appreciated for your response. By the way, what are those D11 holes for?

BkkCoins

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Quote from: Tornate on July 22, 2013, 10:35:14 PM

Guys, why are there 3 D11 holes instead of one?
http://i.imgur.com/ihYyIgT.png

Also I've googled the thread and found that the following question was asked few times there: is there a soldering mask for Avalon chips available?

Obviously a mistake but I can't fathom how these extra holes get in there. Where is that from? What board and chip?

Do you mean "stencil" for the Avalon? I made one for testing but turned out to be useless because of other parts surrounding it on the board were too close and interfered.

Better to use a toothpick to apply paste on to the pads, or some more fancy applicator if you like. You can buy syringes of paste that you put dots on with. It doesn't need to be perfect and even a line will work but it's better if not too much is applied.

Tornate

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Guys, why are there 3 D11 holes instead of one?
http://i.imgur.com/ihYyIgT.png

Also I've googled the thread and found that the following question was asked few times there: is there a soldering mask for Avalon chips available?

BkkCoins

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Quote from: Spotswood on July 22, 2013, 08:24:33 PM

Quote from: BkkCoins on July 22, 2013, 08:07:25 PM

Quote from: Spotswood on July 22, 2013, 04:58:14 PM

What is the spacing between boards when they are connected via KLegos?

~2mm

Hmmmm...I'm designing a case for these. Can you provide a more precise measurement/tolerance. Thanks!

Well, I can tell you what it should be but when they cut the boards they trim a small amount on each edge which I don't know precisely. Each klego pin is 1.27mm back from the board edge and there is a pin row on the klego between each board. Exact spacing between two klego pins is 2.54mm (0.1"), so that's 5.08 between board pins, take away 2.54 for pin to edge each is 2.54 between boards. But they trim a bit and looking with a ruler it seems like they use a 0.5mm blade and lose about 0.25 mm on each side.

I would design your case to allow for board variation because there is no guarantee each board from every batch will be cut the same (and several vendors are using different board fabs so could also be slightly different).

pixl8tr

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Quote from: wrenchmonkey on July 22, 2013, 09:06:08 PM

Are you for real? Roll Eyes

Yes apparently. http://richchomiczewski.wordpress.com/

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Quote from: Spotswood on July 22, 2013, 08:24:33 PM

Quote from: BkkCoins on July 22, 2013, 08:07:25 PM

Quote from: Spotswood on July 22, 2013, 04:58:14 PM

What is the spacing between boards when they are connected via KLegos?

~2mm

Hmmmm...I'm designing a case for these. Can you provide a more precise measurement/tolerance. Thanks!

Are you for real? Roll Eyes

Spotswood

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Quote from: BkkCoins on July 22, 2013, 08:07:25 PM

Quote from: Spotswood on July 22, 2013, 04:58:14 PM

What is the spacing between boards when they are connected via KLegos?

~2mm

Hmmmm...I'm designing a case for these. Can you provide a more precise measurement/tolerance. Thanks!

BkkCoins

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Quote from: Spotswood on July 22, 2013, 04:58:14 PM

What is the spacing between boards when they are connected via KLegos?

~2mm

Spotswood

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What is the spacing between boards when they are connected via KLegos?

sasadjak

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Quote from: ScaryHash on July 22, 2013, 02:06:17 PM

Is there an already compiled executable version of c g miner that we can use for k16 boards?

I have no idea how to compile stuff on Windows...

Try this http://uploaded.net/file/2slb9x3y
only klondike and avalon driver...

-Redacted-

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It's a bit more complicated than just firing up the MS compiler - It needs to be compiled by gcc running under mingw. Why not just send the changes off to the cgminer team and let them integrate them into the main branch? They produce all the various executables each time they do a release...

BkkCoins

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Quote from: ScaryHash on July 22, 2013, 02:06:17 PM

Is there an already compiled executable version of c g miner that we can use for k16 boards?

I have no idea how to compile stuff on Windows...

I'm on Ubuntu so haven't compiled it yet for Windows. Eventually I'll probably do that or maybe someone else can be the Windows builder. It's been a decade since I compiled on Windows but I believe there is a free compiler from MS.

Topic: Klondike - 16 chip ASIC Open Source Board - Preliminary - page 55. (Read 435369 times)