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Re: [Discuss-gnuradio] Help initial problems with the USRP2

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] Help initial problems with the USRP2
Date: Wed, 8 Apr 2009 09:31:35 -0700
User-agent: Mutt/1.5.18 (2008-05-17)

On Wed, Apr 08, 2009 at 03:43:26PM +0200, Ane Andersen wrote:
> >
> > Hi Eric
> I just tried flashing the SD ram as instructed on the web. It didn't change
> much. Now when I run the two scripts I randomly get either "segment fault"
> or some lines of traceback print with a runtimeerror "Unable to retrieve
> daughterboard info. I also tried  another USRP2 with newest FW. It responded
> the same way. This however had the DBSRX mounted (unfortunately not modified
> for USRP2 since we didn't know until yesterday). I

I suspect that you're not using the latest code in the trunk. Please
update, build and install that.  That will fix the segfault.

The fact that you're still getting the "Unable to retrieve
daughterboard info" message makes me think that you didn't
successfully update the firmware on the SD Card with the latest
firmware binary.



> Maybe you could help me if I write exactly what I do
> with RFX1200 mounted
> If I write: sudo ./usrp2_fft.py -f1300e6
> I get this response:
> Traceback (most recemt call last);
> File "./usrp2_fft.py, line 274 in <module>
>       main()
> File"./usrp2_fft.py, line 270, in main
>       app=stdgui2.stdapp(app_top_block, "USPR2 FFT", nstatus=1)
> 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/sit-packages/wx-2.8-gtk2-unicode/wx/_core.py", line
> 7912, in __init__
>   self._BootstrapApp()
>  File "/usr/lib/python2.5/sit-packages/wx-2.8-gtk2-unicode/wx/_core.py",
> line 7487, in
> _BootstrapApp
> return _core_.PyApp__BootstrapApp(*args, **kwargs)
>  File "/usr/lib/python2.5/sit-packages/wx-2.8-gtk2-unicode/wx/stdgui2.py",
> line 39 , in OnInit
>   frame=stdframe (self.top_block_maker, self.title, self._nstatus)
> File "/usr/lib/python2.5/sit-packages/wx-2.8-gtk2-unicode/wx/stdgui2.py",
> line 60 in __init__
>  self.panel=stdpanel (self, self, top_block_maker)
>  File "/usr/lib/python2.5/sit-packages/wx-2.8-gtk2-unicode/wx/stdgui2.py",
> line 81 in __init__
>  self.top_block=top_block_maker(frame, self, vbox, sys.argv)
> File  "./usrp2_fft.py", line 70 in __init__
>   self.u=usrp2.source_32fc(options.interface, options.mac_addr)
> File "/usr/local/lib/python2.5/site_packages/gnuradio/usrp2.py", line 585,
> in source_32fc
>  return _usrp2.source_32(*args, **kwargs)
> RuntimeError: Unable to retrieve daughterboard info
> "Unable to retrieve daughterboard info " any more but segment fault.
> Br
> Ane

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