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Author Topic: Klondike - 16 chip ASIC Open Source Board - Preliminary  (Read 434691 times)
zipiju
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January 20, 2014, 10:25:37 PM
 #3541

Zipiju,

That thar is some nice looking PCB work.  Just to be clear, those are Gen2, 55nm Avalon chips AND you're chasing down a short somewhere .... right???

Correct. Short on a 3.3V rail to the GND.

Solder bridge shorts are a true PITA to work out.  On replacing the Avalon chips, I've done tight package replacements using just a hardware store heat gun (on high).  I made an aluminum foil shield to cover the components around the BGP package device I was replacing (so as not to melt their solder) and then ever so gingerly heated the part I needed to replace to a point where it would release from the board using my chip suction device.  It's not quite a hot air re-flow station BUT it does the trick.  To replace the part I tinned the pads on the PCB, put the part on the board, held it in place with a long rigid wire (because I didn't want to toast my fingers in the process) and again used the heat gun to re-flow the tinned pads.  If don't want to pre-tin the pads and you happen to have solder paste laying around you can dab a small amount (and I mean a pin head amount) onto the device pads and then, using your chip suction device, line the device up with the PCB pads and drop it onto the board.  The heat gun process applies once the part is stuck to the board.  On a final note, I always part with a bit of advice.  Do NOT drop that hot heat gun on your junk  Shocked .  In fact, try to NEVER do electronics work wearing only a Speedo.  Safety first  Grin

On the topic of solder bridges that can happen with REALLY tight pitched electronics used on the K16S-55nm board have you considered building yourself one of these -> http://www.instructables.com/id/DIY-Soldering-Reflow-Oven/ .

I did and it makes doing tight pitch packages as ell as BGM type packages SUPER easy (using a stencil and solder paste).

H@shKraker

I've been reworking Avalons on the first few K16, so I have a practice Smiley. The issue here is, that it can really be any component, from a capacitor to Avalons itself. Another thing is, that I was in a work from 1PM till now (11PM), so I'm not in a state to start working on that now. I'm sorry, but I'll try tomorrow morning. But as it looks, it won't be probably fixed before weekend Sad.

Be sure to check out http://projectklondike.org/ site
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fasmax
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January 20, 2014, 11:19:08 PM
 #3542

14 ohm across the 3.3 volt supply seems kind of normal.
That is only 235ma of current draw. Seem like that shouldn't burn up the regulators.
zipiju
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January 21, 2014, 11:23:03 AM
 #3543

14 ohm across the 3.3 volt supply seems kind of normal.
That is only 235ma of current draw. Seem like that shouldn't burn up the regulators.


You're right. The continuity test on MM here doesn't display resistivity.
I've measured it again in R mode, and it shows 0 Ohms (when I substract resistivity of the MM probes).

Be sure to check out http://projectklondike.org/ site
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justroll
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January 23, 2014, 01:36:29 PM
 #3544

@zipiju : still alive ? Hope you didn't put you on vfib on 3.3V rail  Undecided
zipiju
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January 24, 2014, 12:26:56 AM
 #3545

@zipiju : still alive ? Hope you didn't put you on vfib on 3.3V rail  Undecided


I'm still here, but lacking any free time. So please just wait till the weekend.

Be sure to check out http://projectklondike.org/ site
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pinkfloyd11
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January 27, 2014, 04:47:15 PM
 #3546

Hello
I have just finish to redesign K1 schematic for made it more clear to read.
But I need some help, so someone know how to contact
  Chris Savery
  Kano
  Steamboat


Thanks
zipiju
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January 28, 2014, 11:07:03 AM
 #3547

Just an update, still working on it. I've removed all the ASICs. The short is no longer present, so now I have to solder the spares back on.
Hopefully, it will be completed tomorrow (I'm leaving to work in about 45 minutes, so can't work on it now).
I also have modified firmware in hand, so I'll be able to test it right away

Be sure to check out http://projectklondike.org/ site
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QualitySeeds
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January 28, 2014, 02:17:51 PM
 #3548

Just an update, still working on it. I've removed all the ASICs. The short is no longer present, so now I have to solder the spares back on.
Hopefully, it will be completed tomorrow (I'm leaving to work in about 45 minutes, so can't work on it now).
I also have modified firmware in hand, so I'll be able to test it right away
Thanks for the update hope it will work our :-) and can we speak sometime want to ask you a couple of questions PM or skype or other methods are welcome

U can buy marijuana seeds with BTC here !!!...

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pinkfloyd11
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January 28, 2014, 09:24:31 PM
 #3549

Hi
Have someone already successfully
tested nano board or K16 board?

About skype is a good idea because we could chat togheter and after post a summary on forum

cardcomm
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January 29, 2014, 12:06:59 AM
 #3550

Hello
I have just finish to redesign K1 schematic for made it more clear to read.
But I need some help, so someone know how to contact
  Chris Savery
  Kano
  Steamboat


Thanks

Kano is active here on the forum.

Chris and Steve (Steamboat), not so much. Although Steamboat has promised to begin our assembly refunds this week, so I'm holding my breath for him to show up  Roll Eyes

Easily see your cgminer status with my cgminerLCDStats app:  http://cardcomm.github.io/cgminerLCDStats/
Did my post help you or make you laugh? Let me know with Bitcoins at: 1CQfpMHQ5zVuZ5i9uxSHSSx4J8ZhehSjn3  Smiley
cdragon
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January 29, 2014, 02:01:51 AM
Last edit: January 29, 2014, 02:22:12 AM by cdragon
 #3551

Just an update, still working on it. I've removed all the ASICs. The short is no longer present, so now I have to solder the spares back on.
Hopefully, it will be completed tomorrow (I'm leaving to work in about 45 minutes, so can't work on it now).
I also have modified firmware in hand, so I'll be able to test it right away

@zipiju

I have made two PCB(ver. K16s-1.0.1)

http://i.imgur.com/kjsifR1.jpg

I found mismatch Schematic and Partlist.
There are some errors in the Partlist.


 Part       Schematic  PartList
------------------------------
 R21        10K          390R
 R45,R46  390R         10K
 R22        100R         49K9
 R24,R25  1K            2K2
------------------------------
zipiju
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January 29, 2014, 11:37:29 PM
Last edit: January 30, 2014, 12:14:48 AM by zipiju
 #3552

Just an update, still working on it. I've removed all the ASICs. The short is no longer present, so now I have to solder the spares back on.
Hopefully, it will be completed tomorrow (I'm leaving to work in about 45 minutes, so can't work on it now).
I also have modified firmware in hand, so I'll be able to test it right away

@zipiju

I have made two PCB(ver. K16s-1.0.1)



I found mismatch Schematic and Partlist.
There are some errors in the Partlist.


 Part       Schematic  PartList
------------------------------
 R21        10K          390R
 R45,R46  390R         10K
 R22        100R         49K9
 R24,R25  1K            2K2
------------------------------

R45,46 should be 390R. R24,25 should be 1K. R22 should be 100R and the R21 should be 10K. Basically, always look on the schematics, because BOM can be wrong.

And is it working? I mean no magic smoke escaping? I'll upload the modified firmware to the Git in a while tomorrow morning (in about 8 hours).

BTW, I wanted to finish mine today, but 2 hours that I had free today wasn't enough to do so. It wil l be the same tomorrow and friday too. I'm really sorry, but nothing I can do about this. I will have to wait till the weekend to finally complete it.

Be sure to check out http://projectklondike.org/ site
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zipiju
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January 30, 2014, 11:12:29 AM
 #3553

So, the updated firmware is at https://github.com/zipiju/klondike/tree/master/firmware/K16/v1.0.
You have to change two lines in CGM driver - driver-klondike.c lines:

419: (unsigned int)K_NONCE(kline->wr.nonce) - 0x180);
861: uint32_t nonce = K_NONCE(kline->wr.nonce) - 0x180;

I was talking to Kano the other day, and there are plans to include those changes to the upstream CGM. But I need a little more time to do that. And also, the firmware will have to be slightly changed again, because now the new K16 is recognized as the old one.

Be sure to check out http://projectklondike.org/ site
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zipiju
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January 30, 2014, 11:33:18 AM
 #3554

So, the updated firmware is at https://github.com/zipiju/klondike/tree/master/firmware/K16/v1.0.
You have to change two lines in CGM driver - driver-klondike.c lines:

419: (unsigned int)K_NONCE(kline->wr.nonce) - 0x180);
861: uint32_t nonce = K_NONCE(kline->wr.nonce) - 0x180;

I was talking to Kano the other day, and there are plans to include those changes to the upstream CGM. But I need a little more time to do that. And also, the firmware will have to be slightly changed again, because now the new K16 is recognized as the old one.


And one more thing, in driver-klondike.c change line 86 to #define LATE_UPDATE_MS ((int)(1 * 1000))

And do not use klondike-options in cgminer.conf for now.
Also, you can change the freq. in klondike.h firmware file. There is the DEFAULT_HASHCLOCK value, you can change that one down to 600. It is possible, that core regs will be shutting down when freq. will be set to 900 because of the power draw.
I'll be back in about 11 hours. Bye.

Be sure to check out http://projectklondike.org/ site
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justroll
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February 03, 2014, 09:34:12 AM
 #3555

board is built (1 hour part preperation time; 4h30 picking parts and reflowing)

when powering up the board I got the same problem as zipiju reported (3.3V short)

using flux i scanned all the asic's ; and noticed some shorts ; fixed!

power up the board ; RED led powered up ; bank 0 power rails OK ; bank 1 power rail  1V not ok (0V)

refluxed asics on bank 1 ; problem is that power rail 1V is NOT stable and asics run SUPER hot! (also the IR and the power inductor) ; anyone got any idea why or where to look ? )

pinkfloyd11
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February 06, 2014, 04:30:24 PM
 #3556

Just a trick

before start to solder components apply 15v at max A between every Power line and gnd.
This operation fuse all short!
AtomSea
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February 06, 2014, 06:02:48 PM
 #3557

Question:

Is it possible for a benevolent manufacturer, or manufacturers (even better), to come out with a 28 nm (or smaller nm) chip that works on these boards?

And if so, how do we make that happen?

I feel that the "for the people" aspect of Bitcoin is dependent on these types of open-source projects.

Is there an open-source asic chip yet?

When you read Satoshi's white paper, it is clear that it was to be "one cpu on vote." Asics and other things changed this, but if we can at least get high power asics to the people, we can do our best to empower as many people as possible to get as close to this ideal as we can.  The more people that have powerful asics, the more sway they have on the system.
We do not want huge data farms to control the destiny of Bitcoin.



(edit - i must point out that it gives me great joy to see the work you guys are putting into this project - I am ridiculously impressed)
cp1
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February 07, 2014, 01:43:47 AM
 #3558

No open source chip that I've seen, but there's the wasp project that is also similar to the Klondike.

Guide to armory offline install on USB key:  https://bitcointalk.org/index.php?topic=241730.0
Bicknellski
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February 07, 2014, 05:46:57 AM
 #3559

NanoFury is more like the Klondike. Wasp is slightly varied from Nano and Klondike in that we are a collective of designers and fund projects together unlike NanoFury or Klondike that relied mostly on BKKCoins and VS3 to fund most of the project to completion. We are keen on an Open Source ASIC chip but that would require a massive collective effort of 100s of people.

Dogie trust abuse, spam, bullying, conspiracy posts & insults to forum members. Ask the mods or admins to move Dogie's spam or off topic stalking posts to the link above.
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February 11, 2014, 01:27:40 AM
 #3560

Question i have searched the forum but cat seem to find an answer as to updating k16 firmware, would i need a PICkit3 or is there a usb boot loader? also i am a noob so don't let my knlowdge of info up top deceive ya.
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