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Author Topic: Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH  (Read 121710 times)
ngzhang
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October 26, 2011, 04:48:54 PM
 #81

What software did you use to generate that?  Doesn't look like fpga_editor...

PlanAhead.. it's OK, but I do miss fpga_editor

We should start an FPGA screenshot thread.. I'd love to see what ArtForz's 195MH/s design
looks like..

-rph


it looks like MR. Zetx generated a nearly 200M design.....

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eldentyrell
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October 26, 2011, 10:53:19 PM
 #82

We should start an FPGA screenshot thread..

I started one:  https://bitcointalk.org/index.php?topic=49971.0

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October 27, 2011, 05:02:38 AM
 #83

Just wondering, what OS, programs, and other stuff are you running.  Let's say I have the hardware (which I obviously don't).  How would you set this up from a flash drive?

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October 27, 2011, 06:43:48 AM
 #84

Is it available for sale?

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October 27, 2011, 08:29:55 PM
 #85

The LX25 is just for testing a new layout and reflow process. If it doesn't work it was cheaper than a LX150. If it does work you get a LX25 on a nice 0.1" breakout board.
And yea, at low qty and without assembly $175 for LX150+discretes+board looks pretty much right.

I've looked at the LX150 on exilinx.com at it seems that the processor alone costs 175. for the cheap one.  It doesn't look like the board comes with it, or other stuff.  Am I missing something?

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October 27, 2011, 10:03:17 PM
 #86

*Whistle*
Looks pretty. Smiley

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October 28, 2011, 04:56:21 AM
 #87

I've looked at the LX150 on exilinx.com at it seems that the processor alone costs 175. for the cheap one.  It doesn't look like the board comes with it, or other stuff.  Am I missing something?

Yup, $175 for the fastest 6s150 in qty 1. If you are building a large enough miner, you can -
with effort and time - get a quantity discount on it.

In a large miner: the PCBs, power supplies, passives, assembly fees, and other costs
are a low percentage of the total cost. Definitely well under 20%. 80%+ goes to the FPGA vendor.

-rph

Ultra-Low-Cost DIY FPGA Miner: https://bitcointalk.org/index.php?topic=44891
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October 28, 2011, 05:11:40 AM
 #88

Got the first batch of production PCBs. Still working on the FPGAs...

With the recent RTL advances this is enough for a 35GH/s+ miner.




-rph

Ultra-Low-Cost DIY FPGA Miner: https://bitcointalk.org/index.php?topic=44891
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October 28, 2011, 07:04:46 AM
 #89

Nice!
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October 28, 2011, 09:33:54 AM
 #90

Just wondering, what OS, programs, and other stuff are you running.  Let's say I have the hardware (which I obviously don't).  How would you set this up from a flash drive?

OK, here's how it works

Connect power and USB to the FPGA board. Run a program to download the FPGA image over USB.
Then start TheSeven's python miner. That's it.

You could build a Linux flash stick to do all of this automatically. A single $100 Atom PC, or hacked router,
can run several hundred FPGAs.

-rph

Ultra-Low-Cost DIY FPGA Miner: https://bitcointalk.org/index.php?topic=44891
Chefnet
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October 28, 2011, 09:44:43 AM
 #91

what is with the limit of 127 on a pc per usb?

rph
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October 28, 2011, 09:50:13 AM
 #92

limit of 127 on a pc per usb?

I'm working on a high-density carrier that controls multiple FPGAs per USB Device
So it's not a problem in practice.

-rph

Ultra-Low-Cost DIY FPGA Miner: https://bitcointalk.org/index.php?topic=44891
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October 28, 2011, 07:43:45 PM
 #93

please sell these.

tinman951
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October 29, 2011, 01:15:20 AM
 #94

Got the first batch of production PCBs. Still working on the FPGAs...

With the recent RTL advances this is enough for a 35GH/s+ miner.
-rph

Is that just the boards to put the processor on?  (The Spartan6-LX150) . 
I would really like a picture of the individual parts that were used before you built it.  That would show these people how difficult it really is, and you might get some more people buying them.  Like me, but probably only 1 at first.

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October 29, 2011, 06:17:21 AM
 #95

I'd really appreciate a actual guide to putting all the stuff together <3
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October 29, 2011, 01:53:31 PM
 #96


Did you hear from that vendor I gave you, rph?

 Grin
rph
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October 30, 2011, 04:58:48 AM
 #97

Did you hear from that vendor I gave you, rph?

Not yet.. been busy coordinating the FPGA order..

-rph

Ultra-Low-Cost DIY FPGA Miner: https://bitcointalk.org/index.php?topic=44891
eldentyrell
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October 30, 2011, 09:30:13 PM
 #98

Great blog post on Spartan-6 ternary adders:

http://myfpgablog.blogspot.com/2011/10/ternary-adder-in-lut62.html

The guy who writes that blog works for Xilinx.

The printing press heralded the end of the Dark Ages and made the Enlightenment possible, but it took another three centuries before any country managed to put freedom of the press beyond the reach of legislators.  So it may take a while before cryptocurrencies are free of the AML-NSA-KYC surveillance plague.
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October 31, 2011, 11:21:39 PM
 #99

subscribing to this..  very interesting

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October 31, 2011, 11:43:13 PM
 #100

I'm not convinced FPGAs are worthwhile right now, but I think it will be awesome if the electricity costs can't be made up.

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