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Author Topic: BTCMiner - Open Source Bitcoin Miner for ZTEX FPGA Boards, 215 MH/s on LX150  (Read 153732 times)
ztex
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June 20, 2012, 01:24:19 PM
 #441

I sent an e-mail to [...] for support but I guess I'll report my problem here also for the record.

First of all, please edit your posting in order to ensure that search engines can't read that email address. I already get a lot of spam and I don't need more. (The same for those who quoted that email address).

The answer to your question is the same I sent per email:

The USB connection goes lost. Most probable reasons are:
  * Bad USB cable
  * Bad USB hub
  * Power supply interruption. This can be caused by cabling or if a
protection event of the PSU (e.g. overheat protection) is triggered.

If LED's go on it was a power supply interruption.

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ztex
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June 20, 2012, 02:01:22 PM
 #442

The theoretical stale rate with "block monitoring" @212 MHz is (0.25s + 5.05s/<number of miners-1>) / 600s.

An measurement of the stale rate would have to be implemented into bitcoind because this require precise information about the time of occurrence of new block.

Thanks for the info.  So in theory, the stale rate should be really low if you have a few miner running.

Yes.

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June 20, 2012, 04:14:09 PM
 #443

Quote
if you mean the power supply, this is a new 12V transformer from an external hard drive i bought recently.
thanks.

Are you using a transformer instead of a regulated power supply?  I would check to make sure the voltage is stable across different loads.  I tested one from a Linksys router and it's voltage would spike to 17V under low resistance.  Also, how many amps does it deliver?  You would probably need at least 4 amps to power the quads stably. 
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June 20, 2012, 08:06:18 PM
 #444

Quote
if you mean the power supply, this is a new 12V transformer from an external hard drive i bought recently.
thanks.

Are you using a transformer instead of a regulated power supply?  I would check to make sure the voltage is stable across different loads.  I tested one from a Linksys router and it's voltage would spike to 17V under low resistance.  Also, how many amps does it deliver?  You would probably need at least 4 amps to power the quads stably. 

Interesting, this may also be part of the problem then. It does not supply 4 amps.
I told stefan that this was fixed, but i spoke too soon, it crashed again.
I'll get a new power supply for the fpga.

and sorry for the email quote.
thank you all.

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June 22, 2012, 08:42:10 AM
 #445

A new testing version has been released.
Binaries: http://www.ztex.de/btcminer/ZtexBTCMiner-120622.jar
Source: http://www.ztex.de/btcminer/ZtexBTCMiner-120622.tar.bz2

New features are:
  • Frequncy limit increased to 248 MHz (requires firmware update if dummy firmware is not used)
  • Midstate check / auto-correction (BTCMiner considers all results as erroneous if midstate is wrong)
  • Request new work interval randomized by +/- 12.5% (reduces network traffic peaks)
  • Secondary Log (parameter -l2): Reports everything but statistics
  • Secondary command input (parameter -c): Can be used the send commands through a named pipe
  • LED2 of USB-FPGA Modules 1.15x flashes if a new share was found (requires firmware update if dummy firmware is not used)
  • A few smaller changes requested by users

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June 22, 2012, 05:20:39 PM
 #446

Works well. Thank you.

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June 22, 2012, 09:52:34 PM
 #447

Works great.
Thanks :0)
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June 23, 2012, 08:53:12 AM
 #448

Would it be possible to selectively shut down or restart devices, without physically power cycling them? Or restarting FPGAs that have been shut down?

There is a typo in the help message:

Quote
If neither -ps nor -ps is given, only unconfigured devices are programmed\n

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July 10, 2012, 02:32:33 PM
 #449

Perhaps this is useful for other people, too.

You can also run BTCMiner from your NAS! It's strange but I have never thought of it before and I am astonished how easy it was setting it up.

I have a QNAP NAS (419P+ with Intel Atom) and it worked out of the box after installing java. Three ztex singles are mining happily. CPU use is about 1-2%. I installed java with the help of Optware IPKG.

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July 10, 2012, 07:27:10 PM
 #450

oh yes. If want to by a new one so I can test it with synology :-)

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July 11, 2012, 09:49:25 AM
 #451

@chefnet: I guess btcminer will also work with your synology NAS as there are java packages which can be installed using ipkg.

http://www.synology-wiki.de/index.php/Java (sorry its in german)
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July 12, 2012, 10:09:50 AM
 #452

A new release (120703) is available at http://www.ztex.de/btcminer

New features since the last test version (120622):
    * Multi-threading bug fixed (occurred on USB-FPGA Modules 1.15y at more than 10 miners)

New features since the last official version:
    * Frequency limit increased to 248 MHz (requires firmware update if dummy firmware is not used)
    * Midstate check / auto-correction
    * Request new work interval randomized by +/- 12.5% (reduces network traffic peaks)
    * Secondary Log (parameter -l2): Reports everything but statistics
    * Secondary command input (parameter -c): Can be used the send commands through a named pipe
    * LED2 of USB-FPGA Modules 1.15x flashes if a new share was found (requires firmware update if dummy firmware is not used)
    * New Command: i(nfo): outputs statistics

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July 12, 2012, 10:38:47 AM
 #453

thank you ztex!

working good and, i think, maybe i am wrong, a littlebit faster.
great job!

weiter so...

greetings
pazor

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July 17, 2012, 09:36:00 PM
 #454

Hey ZteX, what do you think about this: http://tricone-mining.com/

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July 18, 2012, 11:04:50 AM
 #455

Hey ZteX, what do you think about this: http://tricone-mining.com/

This: https://bitcointalk.org/index.php?topic=49971.msg940140#msg940140

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July 18, 2012, 09:46:52 PM
 #456

Would it be hard to try and make your firmware faster following that model?

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July 18, 2012, 10:06:10 PM
 #457

feature request (if possible):

could you port BTCMiner for ARM devices like the raspberry pi on default?

Im not a linux pro and compiling that is beyond my skills (atm). I do have a pi here and it works with two boards but not with a third. That might be my hub..... (i get programming errors while the bitstream is loaded onto the board).

And the Pi doesn't like quad boards. If i attach one of them i get the errors too.

Ill post a log if i have time to test it.

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July 18, 2012, 10:41:42 PM
 #458

can the btcminer used with ztex single/quad for litecoin mining ?


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July 19, 2012, 03:40:55 PM
 #459

can the btcminer used with ztex single/quad for litecoin mining ?
I mined multichain on two quads without any problem. AFAIK there plainly is no difference in means of hashing, that's why it just works and also should with LC only.

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July 20, 2012, 07:18:34 PM
 #460

can the btcminer used with ztex single/quad for litecoin mining ?
I mined multichain on two quads without any problem. AFAIK there plainly is no difference in means of hashing, that's why it just works and also should with LC only.

can you please write the miner call with the command options ?

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