[GB] USB ASIC miner - closed and completed

[pat1900]

But I have a problem with those USB / COM drivers...

See:
https://bitcointalk.org/index.php?topic=220450.msg2321308#msg2321308

In short:

• install the zadig driver
• reboot windows
• install the cp210x VCP driver

Very important: when you download the CP120x driver from silabs, you get two exe files:
...x64.exe (for 64-bit windows) and ...x86.exe (for 32-bit windows)

[malin]

ok, its working,

on rawspberry:
sudo modprobe cp210x

wihout vendor and product and all working

br
malin

[Maciek]

Those
"Silicon Labs CP210x USB to UART Bridge (COMx)"
Are just not working for my both PCs
It's impossible that nobody had this problem yet


the (!) sign means that there is something wrong with the drivers...

[ooxtcoo]

Those
"Silicon Labs CP210x USB to UART Bridge (COMx)"
Are just not working for my both PCs
It's impossible that nobody had this problem yet


the (!) sign means that there is something wrong with the drivers...

do you connect only 1 or more usb miners?
this problem happens if you connect a 2nd miner on a different usb hub.
if i connect it on same hub, it works.

maybe your usb hub dont have enugh power?

and go into device manager and select another comport, dont use com1 as maybe it already is used by onboard comport of your pc.

[Maciek]

Those
"Silicon Labs CP210x USB to UART Bridge (COMx)"
Are just not working for my both PCs
It's impossible that nobody had this problem yet


the (!) sign means that there is something wrong with the drivers...

do you connect only 1 or more usb miners?
this problem happens if you connect a 2nd miner on a different usb hub.
if i connect it on same hub, it works.

maybe your usb hub dont have enugh power?

and go into device manager and select another comport, dont use com1 as maybe it already is used by onboard comport of your pc.

+1
Thank you!
It was that!
I was trying to run the ASIC USB on a long cable - maybe the power was too weak

[CumpsD]

Good morning World!

I smell fresh coffee and USB Gizmos... I'm feeling lucky...

Regarding CumpsD offer, if the offer is extended to me and as I'm so bad in Linux, I would love to get he's RPI image, as one of my 3 RPI's is also a v2 512 MBytes.

A bit late, but here it is:

http://cumps.be/btc/

My raspberry pi Image. It's based on standard raspbian wheeze, using cgminer 3.1.1 compiled from github

It uses the hardware watchdog from the Pi to keep cgminer running. cgminer itself runs in a screen, so you can connect to it over SSH from wherever to have a look, and detach again.

I have not upgraded it to cgminer 3.2.0 yet, since there were quite a bit of problems with 3.2.0 and I didn't have time to look at 3.2.1 which was just released.

What does this mean: no hotplug functions! So you have to connect your sticks *BEFORE* booting the Raspberry PI

Other than that, when it's booted, it just works and you never have to touch it again :p

I've written all the needed instructions on http://cumps.be/btc/

Enjoy!

[rupy]

My HW is down to 0.8% without heatsink or fan after one day.

How is it going for you heatsink and active cooling guys?

[ct1aic]

Good morning World!

I smell fresh coffee and USB Gizmos... I'm feeling lucky...

Regarding CumpsD offer, if the offer is extended to me and as I'm so bad in Linux, I would love to get he's RPI image, as one of my 3 RPI's is also a v2 512 MBytes.

A bit late, but here it is:

http://cumps.be/btc/

My raspberry pi Image. It's based on standard raspbian wheeze, using cgminer 3.1.1 compiled from github

It uses the hardware watchdog from the Pi to keep cgminer running. cgminer itself runs in a screen, so you can connect to it over SSH from wherever to have a look, and detach again.

I have not upgraded it to cgminer 3.2.0 yet, since there were quite a bit of problems with 3.2.0 and I didn't have time to look at 3.2.1 which was just released.

What does this mean: no hotplug functions! So you have to connect your sticks *BEFORE* booting the Raspberry PI

Other than that, when it's booted, it just works and you never have to touch it again :p

I've written all the needed instructions on http://cumps.be/btc/

Enjoy!

Many thanks. i'm going to try it.

[androz]

But I have a problem with those USB / COM drivers...

See:
https://bitcointalk.org/index.php?topic=220450.msg2321308#msg2321308

In short:

• install the zadig driver
• reboot windows
• install the cp210x VCP driver

Very important: when you download the CP120x driver from silabs, you get two exe files:
...x64.exe (for 64-bit windows) and ...x86.exe (for 32-bit windows)

i have the same problem

the first day i used the stick following yxt instructions and all worked perfectly

after some hour mining i stopped and turned off the pc

next day i started mining like day before but now:
Icarus Detect: Failed to open COM15
Avalon Detect: Failed to open COM15



i disintalled and reinstalled all like u suggested but the problem persist

i'm on win 7 64 bit (i rightly choosen x64.exe driver)

[btctr4d3r]

My HW is down to 0.8% without heatsink or fan after one day.

How is it going for you heatsink and active cooling guys?

I'm mining with 3 units and I'm getting 2% HW after 2 days.

I'm only using a small usb fan for cooling with a room temperature of 23º C.

Do you guys think it's because of the temperature?

Regards,
btctr4d3r

[yxt]

No, temerature should only affect the lifetime
Have you ever tested another usb hub? Or even plug one directly into the computer

[rupy]

These chips are fun but they won't last, really poor heat design.

My HW is slowly creeping up, 0,85%... I give it one month.

0.85% = HW:96 / A:11323 is that the right calculation (bfgminer)?

[btctr4d3r]

No, temerature should only affect the lifetime
Have you ever tested another usb hub? Or even plug one directly into the computer

They are all connected to a PC.

After one day I had close to 4% HW but as of now I have 1,95% HW... strange.

[yxt]

with diff1 shares?


@rupy
re-mount your heatsink 

[rupy]

I actually think the out-of-the-box heatsink makes it worse, we'll see in the "long" run.

It is not increasing the surface, I told friedcat; his reply was: "It' won't trap the heat since the surface between aluminum and air is still more effective in transferring heat than the surface between the non-metal PCB backside and air. Especially when there are any airflow."

Maybe he's right, but I like silence.

What this needs is a proper top mounted heatsink, like an inverse pyramid from the BE 100 chip!

[btctr4d3r]

No, Diff 2. Should I be mining at Diff 1?

[rage1337]

Welche maße hat denn der kleine passivkühler auf der rückseite der sticks?

[alibert]

Tests with higher diffuculty show many HW errors (~20%):

(5s):164.1M (avg):363.5Mh/s | A:318  R:0  HW:66  U:0.3/m  WU:4.7/m

This is at diff 16

[yxt]

but 66 /(318*16) is in the 1% range

Or is my thinking wrong 

[alibert]

I didnt know that you have to multiply the accepted ones with the difficulty!