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Looking to purchase some spartan based FPGA boards (Icarus, Cairnsmore etc).
Paypal or BTC for transaction, prefer USA sellers.
Please message with type and offer!
Thanks,
Chris
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To clarify, selling only one board, which listed above has 4 fpgas, each running at ~200 Mh/sec for a total of 800 MH/sec.
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Requested running information - ~24 hours run.  |
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Looking to sell my original batch Cairnsmore. Happily hashing away for months with the Hashvoodoo bitstream at ~800 Mh/sec.
Willing to ship / will escrow if you pay fees.
Ideally looking for a local cash / bitcoin offer in the Philadelphia / Wilmington (USA) area. Willing to consider other offers but would prefer local.
700$ or 6 BTC.
Can include configured Raspberry pi miner for additional $.
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Worked at a speed slower than opensource bitstreams. |
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How would i let it run in a cairnsmore Board? Flash it and use it icarus style, or only via jtag or another special dip switch mode. chrisp never answered here openly and i do not seem to find anything else.
I never got it to work reliably enough to be worth releasing. the DCM had issues and he seemed to have little interest in getting it working, so it wasn't worth the time it wasn't hashing away reliably to further develop it. Im preety sure some poeple managed to get it working - I think I posted the link in this thread or search enterpoints thread. Could be! I released all the code I had to him, never saw anything in return or info back. |
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How would i let it run in a cairnsmore Board? Flash it and use it icarus style, or only via jtag or another special dip switch mode. chrisp never answered here openly and i do not seem to find anything else.
I never got it to work reliably enough to be worth releasing. the DCM had issues and he seemed to have little interest in getting it working, so it wasn't worth the time it wasn't hashing away reliably to further develop it. |
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The man may want some chips for himself  |
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I wish FPGAs were a good long-term option, I have many and love them! Yeah  You are still looking at 30$/Ghash compared to ~5$/Ghash from a similar ASIC(avalon) system for the chip only. Hmm? At $70USD/BTC, Avalon's ASICs currently cost $19.85USD per GH/s, and require 3.63 chips per GH/s. And to be honest, with some effort, I think we can squeeze 1GH/s out of an Artix-7 200. Though Artix-7 aren't EasyPath chips ... On the other hand, FPGAs will always use more power than ASICs, so they will lose that war regardless. Absolutely right! You are looking at closer to 20$/Gh/s , my math error, instead of 5$/chip. I would love to see 1Gh/sec out of the Artix 200K fpga! Optimistically, from our experiences with the proprietary fastest bitstreams with isolated multiple hashers, I would say 600-700 Mhash/sec is the likely fastest we will see. In the months it would likely take to develop a 1Ghash/sec bitstream we will likely continue to see ongoing asic shipments, the availability of Avalon chip only asics, and the likely shipment of a BFL device, and other competing hardware. Tough war to win. I still love my Spartan 3E-500 dev kit bitcoin aside My cairnsmores are still happily churning away by the fireplace  |
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I completely agree with you, especially regards to diversifying the network, but this is a similar paradigm shift. At the current point you would be hard pressed to find someone encouraging CPU mining to secure the network. Assuming you can take a Kintex-7 from Xilinx. http://www.digikey.com/product-detail/en/XC7K160T-2FBG484C/122-1842-ND/3911021 - current price 227.50. Let's assume you can get it for a 1/10 price discount in volume of many 10's of 1000.00s ~23$ Let's say you dedicate 300,000 dollars to develop an easy path device and eliminate 30% of costs. ~15$ Let's then assume you can tweak the bitstream to get 500 Mh/s (highly optimistic) You are still looking at 30$/Ghash compared to ~5$/Ghash from a similar ASIC(avalon) system for the chip only. Again, board costs will be higher. You'll notice the bulk spartan 6 orders never went below ~200$/chip, even from established volume providers like Enterpoint. I wish FPGAs were a good long-term option, I have many and love them! |
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I've taken a look at compiling the Hashvoodoo and similar bitstreams on Kintex/Artix platforms. I'm relatively less known on this forum so take from it what you will. Even if you assume a 3-4X speed-up which I haven't been able to obtain with some knowledgable effort, it would be difficult to equal the Avalon effort.
For quotes with the spartan-6 largest part, a quote for ~100 parts would obtain a roughly ~1/2 - 2/3 price discount from digikey/avnet(150-160/unit) prices. For 1000, you can expect a roughly 1/3 price discount. So despite a 1/3 discount you are still looking at a price roughly 10X the price of a similar Avalon chip (even from a bulk order with resale.) Obtaining a ~1-2 million dollar quote price may drop you into the teens, but at that point developing an asic yourself is a better idea.
Easypath devices require a 300k upfront investment, which is relatively unlikely / unprofitable for an FPGA based solution at this point.
Assuming similar bulk pricing for a kintex/artix, you are still looking at a ~50$/part sale for a device providing ~500-750 Mh/s, not exactly competitive. This also accompanies higher board cost for a higher pincount part, as well as higher power consumption necessitating increased power supply on the PCB.
Sadly it is difficult to say FPGAs will be profitable in the long-term for new buyers. Short-term however, it all depends on the ability of Avalon / BFL to deliver on said chips.
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Unfortunately the added fixes to adjust DCM locking and relocking provided no benefit. Currently only the chip closest to the clock source is functioning stably (250 Mhash/sec). I also have a serial # <50 board, so I'm uncertain as to if that is related, as enterpoint hasn't stated the change that was made for serial #>50 or a possible RMA plan for those <50. I will continue plugging along however... Chris I don't know if it is posible, but makomk got the icarus bitstream working with a dcm watchdog which is reseting the dcm on the cairnsmore boards when it's losing its lock. Can you include something like that in you bitstream or software? Yes, that's one of the two possible fixes I sent to Chris. But I'm more hopeful about the other one. Waiting to hear back. |
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Just a quick update.. I was able to get one of the FPGAs to run stably at clocks of 160,160,160 -> 240 Mhash/s.
I'll keep you guys updated!
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Quick update on my progress with the enterpoint board.. I've now got the FTDI chip working effectively with onboard JTAG. Unfortunately similar to the issues other bitstream developers have mentioned, the clock coming from the controller is too dirty/skewed and causes the DCM to lose the lock fairly frequently. So currently the board can find and submit shares, but quickly loses the clock source. 50 vs. 100 Mhz doesn't appear to make a difference. This was validated with a version which checks the lock every 60 seconds, and it will rarely make it beyond 1 minute. Chris
[0 ] found new board cairnsmore:0
[cairnsmore:0:3 ] found new chip
[cairnsmore:0:3 ] programming FPGA
USERCODE before bitstream upload: 0xcafebabe
chip already programmed and avoid_reprogramming=true; not uploading bitstream
[cairnsmore:0:3 ] done programming FPGA
[cairnsmore:0:3 ] magic number check ok
[cairnsmore:0:3 ] chip is running bitstream version henkin, built 21d13h51m19s ago
[cairnsmore:0:3 ] chip has 3 rings
[cairnsmore:0:3 ] assuming input clock frequency of 100 Mhz
[cairnsmore:0:3 ] asserting global reset
[cairnsmore:0:3.0] disabling DCM bypass mux
[cairnsmore:0:3.0] opening signcryption channel
[cairnsmore:0:3.0] setting clock to 140 Mhz, mult=7 div=5
[cairnsmore:0:3.0] ramping clock: mult=7 div=5
[cairnsmore:0:3.0] asserting local reset
[cairnsmore:0:3.1] disabling DCM bypass mux
[cairnsmore:0:3.1] opening signcryption channel
[cairnsmore:0:3.1] setting clock to 140 Mhz, mult=7 div=5
[cairnsmore:0:3.1] ramping clock: mult=7 div=5
[cairnsmore:0:3.1] asserting local reset
[cairnsmore:0:3.2] opening signcryption channel
[cairnsmore:0:3.2] setting clock to 140 Mhz, mult=7 div=5
[cairnsmore:0:3.2] ramping clock: mult=7 div=5
[cairnsmore:0:3.2] asserting local reset
opening signcryption connection to limp.tricone-mining.com/54.247.190.151
[cairnsmore:0:3.0] initializing cipher state
[cairnsmore:0:3.0] new cipher state = 0x13a39da433f663f53a50e0af
[cairnsmore:0:3.0] loaded job bc307cb5acfb1884855fc9e3948c07ee0cbaf804a405d9e2ee9d3ba9f57f261f:f6880a81501ea5eb1a083cc9
[cairnsmore:0:3.1] initializing cipher state
[cairnsmore:0:3.1] new cipher state = 0x971575f48f3b62f24776676e
[cairnsmore:0:3.1] loaded job f20550dd69fb55a68482848ebf4d738bc22eccc38755ca8936cffdb1ac975672:ca075355501ea5ee1a083cc9
[cairnsmore:0:3.2] initializing cipher state
[cairnsmore:0:3.2] new cipher state = 0xd040624874dbee74718e75d9
[cairnsmore:0:3.2] loaded job 1ea890fd73d9f9e82ce5d5ec07f30c77456120f3cddddcdd2a9b1ffbbe6589d5:62ed09ce501ea5f01a083cc9
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:7.0s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:9.4s
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:9.0s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:11s
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:11s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:13s
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:13s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:15s
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:15s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:17s
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:17s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:19s
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:19s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:21s
[cairnsmore:0:3.0] decrypting nonce at address 0x00000001
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:19s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:21s
[cairnsmore:0:3.0] encrypted nonce = 0xb85eb745
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:19s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:21s
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:21s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:23s
[cairnsmore:0:3.0] found a share: 0xd050f955
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:21s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:23s
[cairnsmore:0:3.0] pool accepted share
H:0/0,0,0 X:210 C:140,140,140 E:0/0,0,0 T:21s | H:0/0,0,0 E:0/0,0,0 A:0 R:0 T:23s
H:184/185,0,0 X:210 C:140,140,140 E:0/0,0,0 T:23s | H:184/185,0,0 E:0/0,0,0 A:1 R:0 T:25s
H:169/170,0,0 X:210 C:140,140,140 E:0/0,0,0 T:25s | H:169/170,0,0 E:0/0,0,0 A:1 R:0 T:27s
H:156/157,0,0 X:210 C:140,140,140 E:0/0,0,0 T:27s | H:156/157,0,0 E:0/0,0,0 A:1 R:0 T:29s
H:146/146,0,0 X:210 C:140,140,140 E:0/0,0,0 T:29s | H:146/146,0,0 E:0/0,0,0 A:1 R:0 T:31s
H:136/137,0,0 X:210 C:140,140,140 E:0/0,0,0 T:31s | H:136/137,0,0 E:0/0,0,0 A:1 R:0 T:33s
H:128/128,0,0 X:210 C:140,140,140 E:0/0,0,0 T:33s | H:128/128,0,0 E:0/0,0,0 A:1 R:0 T:35s
H:120/121,0,0 X:210 C:140,140,140 E:0/0,0,0 T:35s | H:120/121,0,0 E:0/0,0,0 A:1 R:0 T:37s
H:114/114,0,0 X:210 C:140,140,140 E:0/0,0,0 T:37s | H:114/114,0,0 E:0/0,0,0 A:1 R:0 T:39s
H:108/108,0,0 X:210 C:140,140,140 E:0/0,0,0 T:39s | H:108/108,0,0 E:0/0,0,0 A:1 R:0 T:41s
H:103/103,0,0 X:210 C:140,140,140 E:0/0,0,0 T:41s | H:103/103,0,0 E:0/0,0,0 A:1 R:0 T:43s
H:98/98,0,0 X:210 C:140,140,140 E:0/0,0,0 T:43s | H:98/98,0,0 E:0/0,0,0 A:1 R:0 T:46s
H:94/94,0,0 X:210 C:140,140,140 E:0/0,0,0 T:45s | H:94/94,0,0 E:0/0,0,0 A:1 R:0 T:48s
H:90/90,0,0 X:210 C:140,140,140 E:0/0,0,0 T:47s | H:90/90,0,0 E:0/0,0,0 A:1 R:0 T:50s
H:86/86,0,0 X:210 C:140,140,140 E:0/0,0,0 T:49s | H:86/86,0,0 E:0/0,0,0 A:1 R:0 T:52s
H:82/83,0,0 X:210 C:140,140,140 E:0/0,0,0 T:51s | H:82/83,0,0 E:0/0,0,0 A:1 R:0 T:54s
H:79/80,0,0 X:210 C:140,140,140 E:0/0,0,0 T:53s | H:79/80,0,0 E:0/0,0,0 A:1 R:0 T:56s
[cairnsmore:0:3.0] decrypting nonce at address 0x000000b8
H:79/80,0,0 X:210 C:140,140,140 E:0/0,0,0 T:53s | H:79/80,0,0 E:0/0,0,0 A:1 R:0 T:56s
[cairnsmore:0:3.0] encrypted nonce = 0xffa071d7
H:79/80,0,0 X:210 C:140,140,140 E:0/0,0,0 T:53s | H:79/80,0,0 E:0/0,0,0 A:1 R:0 T:56s
H:76/77,0,0 X:210 C:140,140,140 E:0/0,0,0 T:55s | H:76/77,0,0 E:0/0,0,0 A:1 R:0 T:58s
[cairnsmore:0:3.0] found a share: 0xef5d2ca8
H:76/77,0,0 X:210 C:140,140,140 E:0/0,0,0 T:55s | H:76/77,0,0 E:0/0,0,0 A:1 R:0 T:58s
[cairnsmore:0:3.0] pool accepted share
H:76/77,0,0 X:210 C:140,140,140 E:0/0,0,0 T:55s | H:76/77,0,0 E:0/0,0,0 A:1 R:0 T:58s
[cairnsmore:0:3.0] loaded job a19b3310f7906771d08c589bdebbe08d6fa85d72fda888f507f620eacb49dcac:84d75ff7501ea5ed1a083cc9
H:76/77,0,0 X:210 C:140,140,140 E:0/0,0,0 T:55s | H:76/77,0,0 E:0/0,0,0 A:1 R:0 T:58s
[cairnsmore:0:3.1] loaded job 4530e031c8ad7eaa2db0f804ff7b0a6f472daa931e2335b88700dc3372c80db7:28cc3c50501ea5ee1a083cc9
H:76/77,0,0 X:210 C:140,140,140 E:0/0,0,0 T:55s | H:76/77,0,0 E:0/0,0,0 A:1 R:0 T:58s
H:147/148,0,0 X:210 C:140,140,140 E:0/0,0,0 T:58s | H:147/148,0,0 E:0/0,0,0 A:2 R:0 T:1m
[cairnsmore:0:3.2] loaded job cdd0f94dc1834c809d4756abdf1a4f71395327936c975301819fcf77000d6d8e:15263f59501ea5f01a083cc9
H:147/148,0,0 X:210 C:140,140,140 E:0/0,0,0 T:58s | H:147/148,0,0 E:0/0,0,0 A:2 R:0 T:1m
H:142/143,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m | H:142/143,0,0 E:0/0,0,0 A:2 R:0 T:1m2s
[cairnsmore:0:3.0] loaded job bc36aadd093157015ce9fd4cc7bd4cbff180b05c9fbe8460aff59d8f5cc6b049:ba181415501ea5f11a083cc9
H:142/143,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m | H:142/143,0,0 E:0/0,0,0 A:2 R:0 T:1m2s
[cairnsmore:0:3.1] loaded job 0804b3a0e4acafcc9ae09bdea954fc9fdb67bc6e667d9a889411d3483890fbae:2698aed8501ea5f21a083cc9
H:142/143,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m | H:142/143,0,0 E:0/0,0,0 A:2 R:0 T:1m2s
H:137/138,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m2s | H:137/138,0,0 E:0/0,0,0 A:2 R:0 T:1m4s
[cairnsmore:0:3.2] loaded job 83ef10a9d7d736cabfdeccef6c9fe5dadfb0df0e74f341c2f199765608f845fa:181fb3ea501ea5f21a083cc9
H:137/138,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m2s | H:137/138,0,0 E:0/0,0,0 A:2 R:0 T:1m4s java.io.IOException: DCM did not lock
at com.triconemining.miner.DCM.checkDcmLocked(DCM.java:215)
at com.triconemining.miner.DCM.checkLocked(DCM.java:207)
at com.triconemining.miner.RingWrapper.recalibrateClock(RingWrapper.java:382)
at com.triconemining.miner.ChipWrapper.recalibrateClock(ChipWrapper.java:152)
at com.triconemining.miner.BoardWrapper.reCalibrateAndPlot(BoardWrapper.java:166)
at com.triconemining.miner.BoardWrapper.run_(BoardWrapper.java:120)
at com.triconemining.miner.BoardWrapper.run(BoardWrapper.java:73)
at java.lang.Thread.run(Thread.java:722)
H:133/133,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m4s | H:133/133,0,0 E:0/0,0,0 A:2 R:0 T:1m6s
[cairnsmore:0:3.0] loaded job ff64c2de027b0180832eea2e6953dec31c65784e84a6154fa12b05f0490c5dc2:ace20d41501ea6261a083cc9
H:133/133,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m4s | H:133/133,0,0 E:0/0,0,0 A:2 R:0 T:1m6s
[cairnsmore:0:3.1] loaded job ff4315238c7e6890949b6c3de91e3e6005604e0864c95b5b996854b7e945e27a:29871ee2501ea6291a083cc9
H:133/133,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m4s | H:133/133,0,0 E:0/0,0,0 A:2 R:0 T:1m6s
[cairnsmore:0:3.2] loaded job 092b8b64c46c6e2945e5b2b6d71669d028289495c73d5688ecba2025cc9b87cf:c1df6b73501ea62b1a083cc9
H:133/133,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m4s | H:133/133,0,0 E:0/0,0,0 A:2 R:0 T:1m6s
H:126/126,0,0 X:210 C:140,140,140 E:0/0,0,0 T:1m7s | H:126/126,0,0 E:0/0,0,0 A:2 R:0 T:1m10s
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How many bitstreams are currently in development?
- Glasswalker is re-writing the Icarus-bitstream, main problem is JTAG noise and meeting the timing?!
- Which bitstream is makomk working on? According to the filename, also some kind of Icarus-rewrite?
- Is EP still working on a (from-scratch) bitstream or are they now waiting for Glasswalker to finish his work?
- Is anyone working on making the TML-bitstream fully compatible with CM1?
I'm working on adding native support to the TML-bitstream with the included FTDI chip. I've had to rewrite the jtag interface so it's been some time, but i'm progressing nicely. How does that work exactly chrisp, can you still use a miner like cgminer, or do you need a miner provided by Et? I have yet to even look at making anything work with the Et bitstream. I am using the ET miner. Using cgminer would require porting over his interface to the encryption servers and the like, doable, but more work. So it's the same java app that's distributed on his website. |
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How many bitstreams are currently in development?
- Glasswalker is re-writing the Icarus-bitstream, main problem is JTAG noise and meeting the timing?!
- Which bitstream is makomk working on? According to the filename, also some kind of Icarus-rewrite?
- Is EP still working on a (from-scratch) bitstream or are they now waiting for Glasswalker to finish his work?
- Is anyone working on making the TML-bitstream fully compatible with CM1?
I'm working on adding native support to the TML-bitstream with the included FTDI chip. I've had to rewrite the jtag interface so it's been some time, but i'm progressing nicely. |
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However, a more effective solution is to ditch the proprietary USB interface and use the industry-standard IEEE JTAG protocol. The Altera USB Blaster is very well-supported by urjtag and you can find them $9 on ebay (including shipping!): Would this also work for the Enterpoint-Board? Yep. And I'm currently working on using the onboard FTDI chip for exactly this process. The code is improving and I hope to have it stable in around a week, but we will see! |
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Today I was able to get the Enterpoint cairnsmore to work with the tricone mining software without needing an isolated stand-alone cable, just the FTDI link. The code is still early in function, and still suffers from some JTAG errors likely due to noise / reflections on the lines which will need better error handling. I only performed several tests, but was easily able to get stable function with three rings at 100Mhz. (150 Mh/s).
I will keep you guys updated, I should have more time to work on it on Tuesday.
Here's some brief logs from submitted shares, it's fairly garbled from the ascii formatting for the colors.
Hi chrisp, so you wrote the java interface for the cairnsmore board? spiccioli Yep. Unfortunately some JTAG timing or noise issues persist, but they are improved, I'll post an update when things are more stable. I was able to run the the miner for 20-30 minutes without any issues, which is reassuring. |
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Does it work with multible units to? Can't wait to test it  Undortunately I'm a one unit owner Chris |
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