Forum: GNU Radio cant find usrp, possibly fried??

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884f9d04b071ecf28e43f4d8387f4c0f?d=identicon&s=25 reza kar (Guest)
on 2006-04-28 05:15
(Received via mailing list)
Hi all,
  i think I've managed to fry one of my usrp board. I have two rev 4.1
usrp boards and have been working with them for a couple of months. i
had attached the tvrx daughter board  and a wire connected to it as an
antenna. i was moving the wire around to get a better reception from the
usrp_wfm_rcv.py file when i let go of the wire and it fell in to the
surge protector.
  it stopped working so i unpluged the usrp board and pluged it back in
and tried running the program and got the following error:
  Traceback (most recent call last):
    File "./usrp_wfm_rcv.py", line 266, in ?
      app = stdgui.stdapp (wfm_rx_graph, "USRP WFM RX")
    File
"/usr/local/lib/python2.4/site-packages/gnuradio/wxgui/stdgui.py", line
36, in __init__
      wx.App.__init__ (self, redirect=False)
    File
"/usr/lib/python2.4/site-packages/wx-2.6-gtk2-unicode/wx/_core.py", line
7473, in __init__
       self._BootstrapApp()
    File
"/usr/lib/python2.4/site-packages/wx-2.6-gtk2-unicode/wx/_core.py", line
7125, in _BootstrapApp
      return _core_.PyApp__BootstrapApp(*args, **kwargs)
    File
"/usr/local/lib/python2.4/site-packages/gnuradio/wxgui/stdgui.py", line
39, in OnInit
      frame = stdframe (self.flow_graph_maker, self.title,
self._nstatus)
    File
"/usr/local/lib/python2.4/site-packages/gnuradio/wxgui/stdgui.py", line
60, in __init__
      self.panel = stdpanel (self, self, flow_graph_maker)
    File
"/usr/local/lib/python2.4/site-packages/gnuradio/wxgui/stdgui.py", line
81, in __init__
      self.fg = flow_graph_maker (frame, self, vbox, sys.argv)
    File "./usrp_wfm_rcv.py", line 58, in __init__
     self.u = usrp.source_c()                    # usrp is data source
    File "/usr/local/lib/python2.4/site-packages/gnuradio/usrp.py", line
239, in __init__
      _ensure_rev2(which)
    File "/usr/local/lib/python2.4/site-packages/gnuradio/usrp.py", line
81, in _ensure_rev2
      v = _look_for_usrp(which)
    File "/usr/local/lib/python2.4/site-packages/gnuradio/usrp.py", line
75, in _look_for_usrp
      raise RuntimeError, "Unable to find USRP #%d" % (which,)
  RuntimeError: Unable to find USRP #0


  i tried it with the other usrp board and every thing works fine so i
know the daughter board is working fine..
  when i open a second terminal and use the command
  $ tail -f /var/log/messages
  when i plug in the usb it has no effect when the fried usrp board is
on the other end..

  the green led does blink (fast) when the usrp board is powered up but
seems like i cant get any connection between the usrp and my pc..

  any suggestions will be greatly appreciated

  thank you
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