Spartan6's on P2Pool using a RaspberryPi? - page 2.

jaebird

member

Activity: 79

Merit: 10

lsusb shows the following:
ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port

The following posts indicate others might be having issues with the Prolific usb to serial adapter:
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6218
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6629&p=90223

I'm using a Dlink DUB-H7 7-port USB hub to connect the RasPi to the Icarus boards. I'm NOT powering RasPi from hub, I'm using a 2A HP TouchPad micro usb adapter.

Still gathering data at this point...

wogaut

donator

Activity: 448

Merit: 250

Quote from: jaebird on June 06, 2012, 02:08:27 PM

I was able to get the Icarus attached to a Dlink usb hub. It seems there is a problem with either the kernel or the raspberrypi. I have three icarus connected and they show up as /dev/ttyUSB0, 1, and 2. However, cgminer and RG7Miner clients cannot open more than 2 at a time. The last port opened gives an error that the port does not exist, even though it is clearly listed in /dev. It appears to be random of which of the 3 is not available. When I use my regular ubuntu pc everything works as expected (even using the dlink usb hub).

Anyone have similar info? solutions?

Thanks,
J

Are those two showing up always ttyUSB0 and ttyUSB1? I.e. Does the problem specifically occur when a ttyUSB higher than 0 or 1 is needed?
How is it when you open two FPGA devices manually in cgminer (instead of the -S auto option), one of them being attached to ttyUSB2?
What I'm trying to get at is, is this specific to the used ttyUSB port (like only ttyUSB0 and ttyUSB1 work), which would point to an issue with the USB kernel model then.

Please keep us updated, that is very concerning indeed.

jaebird

member

Activity: 79

Merit: 10

I was able to get the Icarus attached to a Dlink usb hub. It seems there is a problem with either the kernel or the raspberrypi. I have three icarus connected and they show up as /dev/ttyUSB0, 1, and 2. However, cgminer and RG7Miner clients cannot open more than 2 at a time. The last port opened gives an error that the port does not exist, even though it is clearly listed in /dev. It appears to be random of which of the 3 is not available. When I use my regular ubuntu pc everything works as expected (even using the dlink usb hub).

Anyone have similar info? solutions?

Thanks,
J

wogaut

donator

Activity: 448

Merit: 250

Quote from: punin on June 04, 2012, 01:34:31 PM

Quote from: jaebird on June 03, 2012, 09:10:41 PM

I used the Debian preinstall image from raspberrypi.org then

apt-get install git build-essential autoconf pkg-config libcurl4-openssl-dev libncurses5-dev

got the latest from github and built it. Binaries seem to be GTG!

Just make sure your micro usb charger is at least 1 amp or it will act squirrely. I'm using an HP 2 amp designed for their no defunct webos tablet (you can pick one up for about 5 bucks).

I tried this, run autogen.sh then tried CFLAGS="-O2 -Wall -march=native" ./configure --enable-ztex but I get:

Code:

checking whether the C compiler works... no
configure: error: in `/home/pi/git/cgminer':
configure: error: C compiler cannot create executables
See `config.log' for more details

I really don't think you need to use the CFLAGS="-O2 -Wall -march=native" directive.

Have you tried following my guide I linked in the above post? Do it in the suggested order, and I don't think you should get the C compiler issue, that doesn't sound like a ztex issue at all. Given that you downloaded the Debian squeeze for your Raspberry and if you follow my instructions like a cooking recipe (and don't forget the apt-get update at the beginning, or the aclocal before autogen.sh, ...) I don't really see the issue (unless cgminer changed since release ckolivas-cgminer-v2.4.1-9-gb69d735.zip).

Probably add the 'sudo apt-get install' commands for libudev and libusb in the first section too, just to make sure.

punin

hero member

Activity: 560

Merit: 500

Quote from: wogaut on June 04, 2012, 01:37:55 PM

Check out the post I have made here:
https://bitcointalksearch.org/topic/m.919685

It's BFL, but the cgminer install is very similar, just activate the proper FPGA type for ./configure

Cheers!

wogaut

donator

Activity: 448

Merit: 250

Check out the post I have made here:
https://bitcointalksearch.org/topic/m.919685

It's BFL, but the cgminer install is very similar, just activate the proper FPGA type for ./configure

punin

hero member

Activity: 560

Merit: 500

Quote from: jaebird on June 03, 2012, 09:10:41 PM

I used the Debian preinstall image from raspberrypi.org then

apt-get install git build-essential autoconf pkg-config libcurl4-openssl-dev libncurses5-dev

got the latest from github and built it. Binaries seem to be GTG!

Just make sure your micro usb charger is at least 1 amp or it will act squirrely. I'm using an HP 2 amp designed for their no defunct webos tablet (you can pick one up for about 5 bucks).

I tried this, run autogen.sh then tried CFLAGS="-O2 -Wall -march=native" ./configure --enable-ztex but I get:

Code:

checking whether the C compiler works... no
configure: error: in `/home/pi/git/cgminer':
configure: error: C compiler cannot create executables
See `config.log' for more details

jaebird

member

Activity: 79

Merit: 10

I used the Debian preinstall image from raspberrypi.org then

apt-get install git build-essential autoconf pkg-config libcurl4-openssl-dev libncurses5-dev

got the latest from github and built it. Binaries seem to be GTG!

Just make sure your micro usb charger is at least 1 amp or it will act squirrely. I'm using an HP 2 amp designed for their no defunct webos tablet (you can pick one up for about 5 bucks).

Garr255

legendary