On 02/08/2013 07:26 PM, Biniyam Zewede wrote: > > > Hello everyone, I am trying to sense a transmitted signal using a > usrp. I typed the following command (/usrp_spectrum_sense.py 440M > 450M --fft 512) and worked a couple of times. But when I try it > today, it tells me that there is no device. (even though I connected > a usrp). part of the message I get looks like this. > > RuntimeError: LookupError: KeyError: No devices found for -----> > > Empty Device Address > > > I need help please. Biniyam. >
need more information. If this is a network device, you may not have setup your network interface. http://files.ettus.com/uhd_docs/manual/html/usrp2.html#setup-networking If this is a usb device, you may not have setup udev/installed winusb driver. http://files.ettus.com/uhd_docs/manual/html/transport.html#usb-transport-libusb -josh > > > _______________________________________________ Discuss-gnuradio > mailing list Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
