Re: [Discuss-gnuradio] RuntimeError: Unable to find USRP #0

[Igor Almeida]

On Tue, Dec 23, 2008 at 3:53 PM, teka yemane <address@hidden> wrote:
> Hello guys,
> I have already installed the gnuradio on Ubuntu 8.10 (interpid) and the
> dial_tone.py is working fine. Then, I was trying to test the usrp_wfm_rcv.py
> with my USRP which takes input from 10.7M scanner but I came to the
> following error:
>
> address@hidden:~/Desktop/gnuradio-3.1.3/gnuradio-examples/python/usrp$
> ./usrp_wfm_rcv.py -f 10.7M
> Traceback (most recent call last):
>   File "./usrp_wfm_rcv.py", line 290, in <module>
>     app = stdgui2.stdapp (wfm_rx_block, "USRP WFM RX")
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/wxgui/stdgui2.py",
> line 36, in __init__
>     wx.App.__init__ (self, redirect=False)
>   File "/usr/lib/python2.5/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
> line 7912, in __init__
>     self._BootstrapApp()
>   File "/usr/lib/python2.5/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
> line 7487, in _BootstrapApp
>     return _core_.PyApp__BootstrapApp(*args, **kwargs)
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/wxgui/stdgui2.py",
> line 39, in OnInit
>     frame = stdframe (self.top_block_maker, self.title, self._nstatus)
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/wxgui/stdgui2.py",
> line 60, in __init__
>     self.panel = stdpanel (self, self, top_block_maker)
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/wxgui/stdgui2.py",
> line 81, in __init__
>     self.top_block = top_block_maker (frame, self, vbox, sys.argv)
>   File "./usrp_wfm_rcv.py", line 79, in __init__
>     self.u = usrp.source_c()                    # usrp is data source
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 247,
> in __init__
>     _ensure_rev2(which)
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 85,
> in _ensure_rev2
>     v = _look_for_usrp(which)
>   File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 79,
> in _look_for_usrp
>     raise RuntimeError, "Unable to find USRP #%d" % (which,)
> RuntimeError: Unable to find USRP #0
>
> Any help is appreciated!
> Teka
>
>
>
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> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>

I have recently had this kind of problem, so maybe I can help.
Did you make sure udev is working correctly and you have read/write
permissions to the block device?



-- 
Igor Almeida