I actually came across the FAQ that I should be running uhd_fft instead. Don't know how I missed it before. Thanks anyway.
Sanat On Thu, May 3, 2012 at 12:11 PM, Sanat Gulvadi <[email protected]>wrote: > Greetings list, > > I have hardly ever used gnuradio. But I want to use it for the > usrp2_fft.py to use as a sort of spectrum analyzer. I installed gnuradio > with the script created by Marcus Leech for ubuntu. > > Upon running "usrp2_fft.py -f 2.45e9 -d 16 -g 20" I get a whole list of > errors at the bottom of which is > > *RuntimeError: NO USRPs found on interface eth0 > > *The line before the Traceback (most recent call last): reads > > *eth0: socket: Operation not permitted > > * I ran *sudo chmod +s /usr/bin/usrp2_socket_opener *as posted in > response to one of the previous queries but I still get the same error. The > thing is that the device is actually connected on the eth1 interface. So if > I run the same command with an additional *-e eth1 *it's the same error > again except for the *eth1*. > I have Ubuntu 11 on my machine. It has the latest gnuradio and UHD > installed from the script and the latest Firmware and FPGA images. The > hardware I am using is a USRP2-Rev4 with RFX2400 daughterboard. The > problems I described above, I am facing on another machine that has the > exact same setup except for Ubuntu 10 instead of 11. > > Another question is, the build_gnuradio script asks you to set your > PYTHONPATH to /usr/local/lib/python2.7/dist-packages. Which I did, but I > was getting errors like * > from gnuradio import usrp2* > *ImportError: cannot import name usrp2 > *I have made sure that the packages are installed by running *dpkg > --get-selections | grep gnuradio *and it shows me the > python-gnuradio-usrp2 package as installed. > I found that after exporting the PYTHONPATH to > /usr/lib/python2.7/dist-packages instead, it runs but gives me the error > above. But each new terminal I open, I have to run that export command. Is > there a permanent solution ? Should I add the line *export > PYTHONPATH=/usr/lib/python2.7/dist-packages* to the /etc/ld.so.conf file. > Sorry if this question is too basic, I am not too experienced on linux. > > Best Regards, > Sanat > --
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