Discontinued: Lancelot (Heavy Duty 400 Mega hashes, 2 x FPGA Mining Board)

[blackarrow]

The manual is great, however I've asked twice now and no response on getting instructions on flashing the 200mhz firmware on this thing. I have my JTAG cable in hand but don't know where to start.

My appologies, I must have missed that.

I've prepared a file for this: www.cardreaderfactory.com/download/lancelot/lancelot_firmware.rar

All the instructions and required files are in there.

[elchorizo]

The manual is great, however I've asked twice now and no response on getting instructions on flashing the 200mhz firmware on this thing. I have my JTAG cable in hand but don't know where to start.

My appologies, I must have missed that.

I've prepared a file for this: www.cardreaderfactory.com/download/lancelot/lancelot_firmware.rar

All the instructions and required files are in there.

Thank you, and at this time you are recommending the 200mhz and not the v42 correct?

[blackarrow]

Thank you, and at this time you are recommending the 200mhz and not the v42 correct?

Not really. If you don't mind the errors you can use v42 firmware.

In our latest tests v42, after 12 hours, the total number of accepted packages was higher than a board running 200mhz bitstream therefore yielding better results than 200mhz.

[squall1066]

A big thanks to blackarrow, Came on team viewer and sorted my non connecting boards very quickly, Thank you for such a good customer support, and a fantastic product.

EDIT though I would like to know what it was that was wrong. 

[bitpop]

Chorizo you can get all the info you need from the original lancelot too

[jayeeyee]

Just placed an order for 20 units under the group manufacturing.  So if I'm reading the OP correctly.. I do not need to pay yet until Blackarrow informs us and/or me that they have the stock available and is ready to ship.  Until then.. I am basically in queue waiting to pay?

Also.. why no Escrow?

[iamthekey]

bash: syntax error near unexpected token `('

my first step in ubuntu ^^

trying run 34 Lancelots

[bitpop]

Post your entire command

[iamthekey]

cgminer -S /dev/ttyUSB0 -S /dev/ttyUSB1 -S /dev/ttyUSB10 -S /dev/ttyUSB11 -S /dev/ttyUSB12 -S /dev/ttyUSB13 -S /dev/ttyUSB14 -S /dev/ttyUSB15 -S /dev/ttyUSB16 -S /dev/ttyUSB17 -S /dev/ttyUSB18 -S /dev/ttyUSB19 -S /dev/ttyUSB2 -S /dev/ttyUSB20 -S /dev/ttyUSB21 -S /dev/ttyUSB22 -S /dev/ttyUSB23 -S /dev/ttyUSB24 -S /dev/ttyUSB25 -S /dev/ttyUSB26 -S /dev/ttyUSB27 -S /dev/ttyUSB28 -S /dev/ttyUSB29 -S /dev/ttyUSB3 -S /dev/ttyUSB30 -S /dev/ttyUSB31 -S /dev/ttyUSB32 -S /dev/ttyUSB4 -S /dev/ttyUSB5 -S /dev/ttyUSB6 -S /dev/ttyUSB7 -S /dev/ttyUSB8 -S /dev/ttyUSB9 --icarus-timing short -o ... -u ... -p (anything)

...one Lancelot missing

[bitpop]

Put your u and p in quotes?

[RamirezX]

cgminer -S /dev/ttyUSB0 -S /dev/ttyUSB1 -S /dev/ttyUSB10 -S /dev/ttyUSB11 -S /dev/ttyUSB12 -S /dev/ttyUSB13 -S /dev/ttyUSB14 -S /dev/ttyUSB15 -S /dev/ttyUSB16 -S /dev/ttyUSB17 -S /dev/ttyUSB18 -S /dev/ttyUSB19 -S /dev/ttyUSB2 -S /dev/ttyUSB20 -S /dev/ttyUSB21 -S /dev/ttyUSB22 -S /dev/ttyUSB23 -S /dev/ttyUSB24 -S /dev/ttyUSB25 -S /dev/ttyUSB26 -S /dev/ttyUSB27 -S /dev/ttyUSB28 -S /dev/ttyUSB29 -S /dev/ttyUSB3 -S /dev/ttyUSB30 -S /dev/ttyUSB31 -S /dev/ttyUSB32 -S /dev/ttyUSB4 -S /dev/ttyUSB5 -S /dev/ttyUSB6 -S /dev/ttyUSB7 -S /dev/ttyUSB8 -S /dev/ttyUSB9 --icarus-timing short -o ... -u ... -p (anything)

...one Lancelot missing

this is why I want to use .conf file, but with no success :/  (https://asktom.cf/index.php?topic=28402.msg2232234#msg2232234)

Try to put your login credentials in your.conf file and run it by: cgminer -c your.config -S /dev/ttyUSB0 -S /dev/ttyUSB1 .... -S /ttyUSB19

your.config:

Code:

"pools" : [
        {
                "url" : "http://stratum.bitcoin.cz:3333",
                "user" : "your.worker",
                "pass" : "yourpass"
        }
],

"api-listen" : true,
"icarus-timing" : "2.5"

}

[CrownCloud]

bash: syntax error near unexpected token `('

my first step in ubuntu ^^

trying run 34 Lancelots

Should be fine now, I had a ( somewhere by mistake before, removed it from the script and it works fine now :-)

[iamthekey]

Put your u and p in quotes?

yes

[iamthekey]

Thanks BlackArrow, problem solved.


https://i.imgur.com/s7PzBPM.jpg

[blackarrow]

Thanks BlackArrow, problem solved.

You're welcome.

Nice setup!

[bitpop]

How'd you see his imgur?

[jimmy3dita]

Hello everyone

I've done my first 24 hours of mining and I've good and bad news.

Good news: everything is rock solid, my Raspberry Pi is working without any hiccup, I've just to unplug temporarily one of the two Dlink USB hubs to let it boot.

Bad news: NEVER stack the PSUs!!! Tonight the topmost of them (after about 4 hours of full load work) has been literally blown away by the heat, with the plastic enclosure partially melted!
Fortunately none of the FPGAs has been damaged, I had just to keep up with only 8 Lancelots instead of 10.

Later today I'll open the enclosure and I'll post some pics, so also Blackarrow can see what happened inside the PSU...

[elchorizo]

Bad news: NEVER stack the PSUs!!! Tonight the topmost of them (after about 4 hours of full load work) has been literally blown away by the heat, with the plastic enclosure partially melted!
Fortunately none of the FPGAs has been damaged, I had just to keep up with only 8 Lancelots instead of 10.

Later today I'll open the enclosure and I'll post some pics, so also Blackarrow can see what happened inside the PSU...

The power supply has no fan, no good way to dissipate heat. Of course you should not stack them. You have a recipe for thermal meltdown.

On a side note: The stock fans on these are _terrible_ -- we've had 3 or 4 start to fail with bad bearings already... and I'm sure others will follow shortly

[blackarrow]

How'd you see his imgur?

I'm not sure, it worked now.

The Great Firewall randomly resets any connection, is not just Google / Youtube / Facebook.

[blackarrow]

Later today I'll open the enclosure and I'll post some pics, so also Blackarrow can see what happened inside the PSU...

Is this the 120 Watt PSU without cooling? We wrote several times here to keep them apart as they heat up and melt the plastic.
For serious miners we recommend the 750Watt PSU that we have on our website.