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281  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 04, 2014, 05:52:00 PM
I use this BFGminer development version
luke.dashjr.org/tmp/code/webisect/webisect.php?dobuild=bfgminer

no special drivers like zadig, if you have zadig just click on update driver->manualy select from list->select USB input device

bfgminer -o stratum+tcp://............ -u ........... -p x --no-submit-stale -S nfy:all --set nfy:osc6_bits=45

this is for 12 chips, as chip count goes up, osc bits must come down to keep the 50% drop error down.

maybe ill try linux on a stick to be able to modify the baud rate.
282  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 04, 2014, 04:25:38 PM
Just saw, the schematic(printed pcb) is actually missing the last part... exporting issue i think
https://www.dropbox.com/s/uvril5p01dzd8k5/H-card%20to%20USB.jpg

Correct schematic uploaded, you do need a jump wire on the INSCK line

UPDATE: Connecting SCK directly gives bitfury_init_oldbuf error


img upload

MORE PICURES OF WHAT SHOULD BE CALLED FRANKENSTEIN NANOFURY Smiley)
https://www.dropbox.com/s/mm3nv70c8gurtll/2014-04-04%2020.06.42.jpg
https://www.dropbox.com/s/l0i4n79hs8ey86q/2014-04-04%2020.06.50.jpg
https://www.dropbox.com/s/l0i4n79hs8ey86q/2014-04-04%2020.06.50.jpg
https://www.dropbox.com/s/ocs6e5t9am9m8fg/2014-04-04%2020.08.12.jpg
283  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 04, 2014, 03:28:42 PM
EDIT: just tack
Code:
--set NFY:baud=500000
on the end this will accomplish the same thing

I use the 3.99 windows version of bfgminer and it just exits.
Anyone with another version? latest 3.10 i tried but no luck, just sees the 1st chip.


"Hi Folks,

At first look on your schematics i think that B1 from level shifter need to go direct to SCK on MCP2210, GPIO5 from MCP2210 is used to toggle SCK and send reset to chips, so the connection is wrong ( please check that ).

Cheers,"

On the original schematic that 1k R seems to be part of the passive level shifting.
Ill try connecting it directly. Thanks.

UPDATE: Direct connection to SCK - no go, it fails to detect nanofury.
284  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 04, 2014, 02:14:25 PM

img upload

https://www.dropbox.com/s/zdta1eu4ucgq7ai/H-card%20to%20USB.jpg

To be clear, the schematic is not mine, its an NF1 stripped down and active level shifting installed.
The original can be found here:
https://github.com/nanofury/NanoFury/tree/master/NF1/kicad/NF1-MCP-V06-2

The image on dropbox is 1:1 scale so you can print it and make the board.
2 layers, bottom one is groud, where you see a dot and the gnd sign, thats a hole that goes to the bottom layer(gnd) and has to be electrically connected to it.

From what i see i cand get past the 12ghs barrier, maybe because the frequency of the mcp 2210 is 12mhz or the usb bus....no clue, im no software engineer.
285  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 04, 2014, 09:11:07 AM
Or if there was support for multiple bf chips in cgminer...
I don't have one so cannot write the support for it. I only have 2 single chip icefuries.

I could send you a fully populated H-card+adapter, like you see in the picture all with good chips.
Default speed or a little overclocked from 25ghs to 30ghs(in chainminer).

pm me the address ... wish you were in Europe... but its probably US Smiley
286  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 04, 2014, 07:42:36 AM
H-card to USB converter.

Letting it ride with 8 chips 50 osc bits(to stay in usb specs as i read on bfg readme)


If someone could solve the 50% frequency drops in bfg it would run great and also overclock.
Or if there was support fort multiple bf chips in cgminer...

sweeeeet :-)

btw the 50-bit stuff is meant for NF1 - from observations at around 50bits it uses 0.5Amps (hence "within USB2 specs").
In your case this doesn't really matter so - as the guys from Eagles sing - "take it to the limit"! (a.k.a. girls favorite song about credit cards Cheesy)

8 chips seems to be the limit, after that(currently at 12 chips) it gives alot of 50% drops and reinitialising, every time it reinitialises it brings a HW error with it, most of the times.
As i said, if it truly reinitialises the chip i think it breaks the chain and has to start all over again... i dont really know.
If i tweak the osc bits for all the chips to top out at 12ghs it works, no hw errors, no drops.

The H-card works good(all good chips) with an m-board, so the card is not the problem.

The mcp2210 should be able to take more but i dont know how to tweak the software, maybe someone could help.

287  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 03, 2014, 07:04:37 AM
H-card to USB converter.

Letting it ride with 8 chips 50 osc bits(to stay in usb specs as i read on bfg readme)


If someone could solve the 50% frequency drops in bfg it would run great and also overclock.
Or if there was support fort multiple bf chips in cgminer...
288  Bitcoin / Hardware / Re: NanoFury Project - Open Source Design on: April 02, 2014, 10:05:52 AM
I would like to reserve 1 (8 board) piece + components, no stencile as i can do by hand.
289  Bitcoin / Hardware / Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! on: April 01, 2014, 03:50:27 PM


H-Card to USB, testing with one chip and adding one by one to see when it refuses to go... hopefully MCP2210 will be able to scan 16 chips.
CGminer disables it after a minute or so... maybe its my busted usb on the laptop.
BFGminer works on another laptop.

Lets see what happends.

UPDATE 1:
3 chips but can anyone tell me why the 50% frequency drops ocur?

Hashing at about 7 ghz
290  Bitcoin / Group buys / Re: [Open] Rev. 2 Bitfury Bare Chips - (Up to 3.8 Gh/s) - 2,600 Chip Vac Pack on: April 01, 2014, 03:46:21 PM


H-Card to USB, testing with one chip and adding one by one to see when it refuses to go... hopefully MCP2210 will be able to scan 16 chips.
CGminer disables it after a minute or so... maybe its my busted usb on the laptop.
BFGminer works on another laptop.

Lets see what happends.
291  Economy / Computer hardware / Re: [WTS] Klondike K16s - 7 pcs [PRICE DOWN 0.05 BTC] on: March 28, 2014, 11:42:25 AM
Bump, price update.
292  Bitcoin / Group buys / Re: [Open] Rev. 2 Bitfury Bare Chips - (Up to 3.8 Gh/s) - 2,600 Chip Vac Pack on: March 25, 2014, 07:57:53 PM
Also im working on an H-card to USB adapter.
Thanks vs3 and Swimmer63 for the support... aka schematics.
Stay tunned.
293  Economy / Computer hardware / [WTS] Klondike K16s - 7 pcs [PRICE DOWN 0.05 BTC] on: March 25, 2014, 07:13:30 PM
Selling 7 pcs Klondike K16
Price 0.05 BTC + shippment(doubt ill get this price but im open to offers)
Take them all - 0.3 BTC.
Pics attached.
I preffer EU shipping as US shipping will be 60$+ express
Escrow is fine, buyer pays fees.

https://www.dropbox.com/s/5t3hemwybvtvijg/2014-03-25%2009.58.31.jpg
https://www.dropbox.com/s/w38aeab0bu72qcs/2014-03-25%2009.58.45.jpg
https://www.dropbox.com/s/si29shp2wz2th63/2014-03-25%2009.59.04.jpg
https://www.dropbox.com/s/tozmyv2cbt77n53/2014-03-25%2009.59.11.jpg

Original cables and boxes, PSU and USB hub not included.
VRM have heatsinks attached for sability in overclock.


Details and more proof on pm or mail: adi.bordea@gmail.com
294  Local / Market / [VAND] Klondike K16 - 7 buc on: March 25, 2014, 08:33:50 AM
Vand 7 buc Klondike K16
Pret pe buc 0.1 BTC + transport
Daca le luati pe toate, 0.6 BTC si raman si in carcasa facuta de mine 6+1.
Poze atasate.
Prefer sa vand in tara decat sa ma complic pe afara iar pretul avand in vedere preturile de pe forumul din RO, eu zic ca sunt acceptabile.

https://www.dropbox.com/s/5t3hemwybvtvijg/2014-03-25%2009.58.31.jpg
https://www.dropbox.com/s/w38aeab0bu72qcs/2014-03-25%2009.58.45.jpg
https://www.dropbox.com/s/si29shp2wz2th63/2014-03-25%2009.59.04.jpg
https://www.dropbox.com/s/tozmyv2cbt77n53/2014-03-25%2009.59.11.jpg

Cablurile, ambalajul original toate incluse, sursa si hubul USB nu sunt incluse.
VRM-urile au radiatoare pe ele pentru stabilitate.


Mai multe detalii sau dovezi pe pm sau mail: adi.bordea@gmail.com
295  Bitcoin / Mining support / Re: [GUIDE] BitFury Miner Support/Tuning on: March 20, 2014, 06:11:30 PM
Is there anyway to use a different stratum proxy with chain miner? Resetting it every 10 or 60 min still leads to issues after several days. Anyway to put slush's proxy in it, or is that what it is using?

I tried bfgminer as the proxy and though the shares make it to bfgminer, they're all discarded as hw errors. Not sure where the problem lies as I've encoded credentials into jobconnect. Perhaps I'll throw the question at Luke-jr at some point.

Update:
Nevermind THAT ^^^ CGMiner works a treat now on bitfury rigs. Bye Bye chainminer and the lamo proxy. Thanks ckolivas for the awesome miner! Finally got some cgremote action on bitfury rigs.

How did you get Cgminer to work with bitfury h-cards?
I only managed with bfgminer, cgminer only wants usb stuff Smiley
296  Economy / Exchanges / Re: ***CEX.IO Cloud mining official page*** on: March 13, 2014, 11:05:55 AM
anyone having trouble connecting? i have 2 pcs, one connects, the other does not.
different locations but same internet privider
297  Economy / Exchanges / Re: ***CEX.IO Cloud mining official page*** on: March 13, 2014, 08:29:47 AM
its being confirmed
298  Bitcoin / Mining support / Re: [GUIDE] BitFury Miner Support/Tuning on: March 09, 2014, 08:21:49 PM
I would try one h-card at a time in chainminer to see what chips are working and which are not doing so well.
Check for oxidation on the pads, clean them with sand paper or put a thin film of solder on them(not the best solution but works for a while, then you have to sandpapaer again).

I have a home made m-board and found this to be a problem, i will solder the pads with wires once the setup is complete... so no more oxidation problem.

Also i have found that lowering the iovdd to 1.6...1.5v makes the "50% drop in freqency detected, reinitialising" error in BFGminer and the miso errors in chainminer go away. I dont know why... so dont ask.
as i been told by intron, the mAmps required by each chip decreases with voltage and the lm2596(3A) or the lm317t(1A) can take it... or i have o source of noise in the iovdd line(no osciloscope to check) ...who knows... lowering it just worked for me.

I know its not an option on the retail m-board, im just sharing my findings.
299  Bitcoin / Mining support / Re: [GUIDE] BitFury Miner Support/Tuning on: March 05, 2014, 05:23:40 AM
Check above posts, i can make you one of those, they are not pretty but they work, also youll need another Rpi.
Pm if interested.
I may like to try one.  I have some very finicky h boards.  What do you charge?

Well you are not going to like pricing Smiley) ... one asked through pm and i said the following:
- As it is 1/4th of a full m-board it should be 1/4th of the price meaning 50 euros(as a full v2.3 m-board is 200 euros)
- and i could to a full one for 150 euros

... before judging the price please consider that i built them in my spare time and i have a job, the manual labor on these is not easy,
they are not massed produced even if the BOM on this is about half of the total cost.(takes 2 days to make one from 0, if the only thing youll be working on is the m-board)

also consider that they are not in stock, look what happened to DDR Ram pricing, as ddr3 came out, ddr2 became more expensive because it became more rare.
i am not trying to explain myself, i just want people to take in consideration some facts before saying ... ohh it too expensive... or things like that Smiley

I am building a second one, but i cant seem to find how the hell are those ISA 10 contact slots are named, so i dont have to cut actual ISA slots in pieces... desoldering them from motherboards is F...ing time consuming.

If you like to try my second one(aka test it) i could send it to you, if you like, you keep it at a price, if not, you send it back.
This offer is also for tarmi as he asked for one as well through pm.
300  Bitcoin / Mining support / Re: [GUIDE] BitFury Miner Support/Tuning on: March 04, 2014, 01:08:43 PM
Check above posts, i can make you one of those, they are not pretty but they work, also youll need another Rpi.
Pm if interested.
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