Det går att logga in och kolla saldo nu om du missat det.

Jag hade 60+ BTC kvar där, safeade när det började verka för skakigt och fick ut en skvätt via bitcoinbuilder, men totalt blev det 30+BTC och 2k+EUR som frös inne för mig.

Dessutom hade jag 2kEUR till som dragits från kontot men som inte kommit fram till mitt konto (SEPA).

Jag har gjort withdraw så sent som i dec 2013 (SEPA) så jag tyckte mycket av skitkastandet på mtgox var överdrivet. De har alltid rett ut de få problem jag haft med överföringar som inte kommit fram så jag såg inte smällen komma...

/J

Imorse hörde jag till min förvåning om bitcoins på morgonpasset i P3.

Sändningen finns här:
http://sverigesradio.se/sida/avsnitt/199995?programid=2024

Bitcoinsnacket börjar ~1h35m in i sändningen.

So what happened to the diff clock driver, did you ever get it to work as expected?

I am living 20km north of Stockholm. Low post count on me though, but back in 2011 I posted a few times in the opensource fpga miner thread (running on some xilinx eval boards).

Makomk's sha256-transform.v improved the verilog-xilinx port a bit. unroll=2 is now working on the sp605 board with at least a 63MHz hash_clk.

100 shares found and speed seems to stabilize somewhere in the 15Mh/s region.

Anyone else running LX45?

The teknohog xilinx-verilog port also works good with the Xilinx Spartan 6 LX45T eval board called "SP605".

The only trick is that TX and RX in the SiLabs USB-RS232 adapter is reversed so you need to swap the pins in the UCF file to make a null modem.

After finding 7 blocks I have a hash rate of 13.1 +-4.95 with a clock speed of 63MHz and unrolling = 3.


I'm not saying these boards are useful for any real life mining but if you need a working reference example this does the job.

You can test run these devices with the xilinx ISE webpack license (which reports some stats back to xilinx but has a $0 cost). The only thing you risk is a salesguy calling you and asking when you will be purchasing volume.. 

Good luck, have fun!

I've been playing around with the xilinx-verilog port in the github repo and can confirm that it works just fine on the Xilinx Spartan-6 XC6LX9 microboard eval board from Avnet for $69.

Couldn't fit anything but unrolling = 5 so speed is a few Mhash/s only, but I really recommend anyone who want to have a look at FPGAs to get this little USB "dongle" sized board. It has built-in usb jtag-cable and usb-serial console so nothing extra is required to get it up and running teknohog's code.

Let me know if anyone wants the UCF file, I just took the pin numbers from the avnet UCF example and replaced the UCF from github.

It is also nice to replace the 7segment with a simple LED output to see that your serial comm is working.

I tried clocks up to >90MHz and it runs just fine.

As a courtesy to teknohog I used his account (in the miner.py) when mining so he got the reward for the few shares I found..

Oh, I actually used windows7 for this, I couldn't get the digilent xilinx cable drivers to work on my linux box. It was easier to install python on the windows laptop.


You can also look at it this way: Learn FPGA programming, get a job and make more money than you most likely ever will on mining bitcoins!

Hello Tycho,

we discussed email alerts when miners fail on IRC a few weeks ago. Any update on that?

I would really appreciate such a feature.

If you fear it would cause massive amounts of emails sent from your system when people leave and join you could make it default off.

Thanks in advance.

Any advice on fan settings?

Do you run the fans temperature controlled or at a steady speed?

Personally I have been running the fans at 70% steady speed the whole summer and kept temperatures decent on my 5850s. But I haven't been in that room... loud!

Try this:

Downloading the linuxcoin USB image, install it on a USB stick, boot from the USB stick and see if the miners work from there.

I'm not saying you have to run linux - but by doing that you can rule out hardware or win7 as the problem.

Good luck.

I guess the gold digging days are over for now.

You could mine on speculation that there is a price rally soon again, but then you could just buy BTCs instead of the 6990 instead...

I'm a forum newbie but I've been on the bitcoin irc channels and doing some hobby mining since early April this year.

I really suck at predicting any market, including bitcoin so I stick to mining. Don't take any financial advice from me! 

Now I have to make a few more posts to be able to post in the FPGA thread, got 2 new eval boards running now...

/jonand