Avalon Clone Assembly Service Europe

[frejo]

Nice work =) Can't wait to get my chips onto one of those units.

[regular]

I would like to get 1 or 2 units as well if you still have any remaining.  I would require the fully assembled unit with chips though.

[strombom]

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

[GandalfG]

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

390MHz ! very nice. Now I wait for shipping

[bitrocket]

Hi Strombom, id like to order a unit, please check your PM

thx!

[thorvald]

can you add the .bin file if you made some modifications to it
I don`t know why but it it the only one that works on my board
Regards
Thor

[strombom]

I don't understand, what should I add?

Here is the info I provided:

Someone asked me to provide a patch, unfortunately I don't know how git works but here are some of the files I have modified in my firmware:

https://dl.dropboxusercontent.com/u/16881231/avalon_clone/firmware/cgminer-3.1.1.tar.bz2
https://dl.dropboxusercontent.com/u/16881231/avalon_clone/firmware/luci-cgminer.zip

Tell me if any more files are needed, I don't remember which I modified... >_<

Here is a python script I used to generate PLL config (warning ugly code):
http://pastebin.com/3h7XGzTz

line 108 has some info about the overclock delay times, I had only guessed so my firmware should be modified to those values:
https://github.com/BitSyncom/cgminer/blob/master/ASIC-README

[thorvald]

hi ,
I`ve used your .bin 519b , it seems that for my fpga controller unit is the only one that works
with any other bin Image higher then 519 I have  0 hash .
my question was if you make modification to your bin image , can you please add it also to the download
maybe there is something different in your build (that works with my controller v1.2)
Regards
Thor

[strombom]

I made no modifications directly to the bin. I followed the guide: https://en.bitcoin.it/wiki/Avalon#How_to_Compile_Your_Own_Firmware_for_Avalon

[asically]

TLDR

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

https://i.imgur.com/cbpaixom.jpg
https://i.imgur.com/PmeNQ8bm.jpg

390MHz ! very nice. Now I wait for shipping

If ten chips then how comes 390MHz?

[weaknesswaran]

TLDR

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

390MHz ! very nice. Now I wait for shipping

If ten chips then how comes 390MHz?

The chips are at 390MHz thats 3900MH/s for 10 chips
The chips do one hash each cycle

[silverserpent]

very impressive, Strombom!
any updates on the chips shipping status/arrival date?
I am still interested in the modules, maybe even a clone (waiting on price?)
please advise on payment procedure too

thanks and congrats on all the progress

[strombom]

I have sold all units in my first batch now. I'm currently producing a second batch, but only for a few bulk customers that do the assembly themselves.

If someone is willing to assemble chips I can provide all required components... Unfortunately I don't have enough time to assemble more chips than for the units I have already sold.

I don't know when the chips will arrive, like everyone else I'm waiting and hope they arrive soon...

[GandalfG]

strombom, what type of jtag programmer You use ?

[strombom]

I use this cable:
http://www.xilinx.com/products/boards-and-kits/HW-USB-II-G.htm

[BenTuras]

Out of curiosity, why is cgminer reporting MinerCount 24, while you seem to only have two boards connected ?
MinerCount should be 2 ?!

[cryptograd]

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

These are horrible numbers you are currently generating 48% hardware errors.

What made you think 390mhz was stable on your current design?

[BenTuras]

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

These are horrible numbers you are currently generating 48% hardware errors.

What made you think 390mhz was stable on your current design?

HW% = 100 * HW / (diff1shares + HW)

100 * 294 / (922 + 294) -> 24%

Still not good tho, should be less than 2%. Must be because of high freq of 390!
What HW% do you get at 300Mhz ?

[GandalfG]

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

These are horrible numbers you are currently generating 48% hardware errors.

What made you think 390mhz was stable on your current design?

This happens for several reasons:
PCB  not does not fit exactly to heatsink, no screws. To hot.
Heatsink  is not cooled, the lack of air flow.
Efficiency of the inverter circuit can be reduced, coil used different from original Avalon.

[cryptograd]

2013-06-29: I was supposed to have done this yesterday but now I have tested a full board with 10 chips. It seems to work well, running both modules at 390MHz for a few minutes is a good sign.

These are horrible numbers you are currently generating 48% hardware errors.

What made you think 390mhz was stable on your current design?

HW% = 100 * HW / (diff1shares + HW)

100 * 294 / (922 + 294) -> 24%

Still not good tho, should be less than 2%. Must be because of high freq of 390!
What HW% do you get at 300Mhz ?

I base my number on a direct ratio between accepted and HW errors.

This is beyond just not good. This is a travesty. Might as well attempt to mine with a GPU with those numbers