Re: [Discuss-gnuradio] Problem in find_usrps and usrp2_fft.py on USRP N210

On 02/08/2011 10:52 AM, ishtiaq ahmad wrote:

Hi All  I hope that u all r fine and doing good.  I have a problem in accessing USRP N210. I installed UHD driver and all the images necessary. when i run uhd_find_devices.py, it returns me   linux; GNU C++ version 4.4.3; Boost_104000; UHD_002.20110127203211.8a62a20  -------------------------------------------------- -- UHD Device 0 -------------------------------------------------- Device Address:      type: usrp2     addr: 192.168.10.2     name:     serial: E2R10ZFUP  which means that the UHD driver is installed correctly. But when i try to run find_usrps, i got "No USRP2 found". Secondly when i try to run  usrp2_fft.py i get the following message:  Traceback (most recent call last):   File "/usr/local/bin/usrp2_fft.py", line 273, in <module>     main ()   File "/usr/local/bin/usrp2_fft.py", line 269, in main      app = stdgui2.stdapp(app_top_block, "USRP2 FFT", nstatus=1)   File "/usr/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py", line 36, in __init__     wx.App.__init__ (self, redirect=False)    File "/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7978, in __init__     self._BootstrapApp()   File "/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line  7552, in _BootstrapApp     return _core_.PyApp__BootstrapApp(*args, **kwargs)   File "/usr/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py", line 39, in OnInit     frame = stdframe (self.top_block_maker, self.title, self._nstatus)    File "/usr/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py", line 60, in __init__     self.panel = stdpanel (self, self, top_block_maker)   File "/usr/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py",  line 81, in __init__     self.top_block = top_block_maker (frame, self, vbox, sys.argv)   File "/usr/local/bin/usrp2_fft.py", line 70, in __init__     self.u = usrp2.source_32fc(options.interface, options.mac_addr)    File "/usr/lib/python2.6/dist-packages/gnuradio/usrp2.py", line 679, in source_32fc     return _usrp2.source_32fc(ifc, mac) RuntimeError: No USRPs found on interface eth0  Please help me in this regard.   Thanking all of you in anticipation.

 
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both "find_usrps" and "usrp2_fft.py" use the "classic" API for the USRP2 hardware, and so don't
  work with UHD devices.

You can synthesize the functionality of usrp2_fft.py using GRC in about 5 minutes, and I posted a link
  to a GRC+UHD implementation in the last couple of weeks on the mailing list.

--  Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org