Re: [Discuss-gnuradio] uhd_fft fails

[Tom Rondeau]

On Tue, Mar 19, 2013 at 1:37 PM, Marcus D. Leech <address@hidden> wrote:
> On 03/19/2013 12:19 PM, M. Ranganathan wrote:
>
>
> I see the following error when I run uhd_fft off the "latest" git version.
> Does anybody else have the same issue? Any clues about what could be causing
> it?
>
>  File "./uhd_fft", line 340, in <module>
>     main ()
>   File "./uhd_fft", line 336, in main
>     app = stdgui2.stdapp(app_top_block, "UHD FFT", nstatus=1)
>   File
> "/users/mranga/proj-dynspect.git/gnuradio/build/install/lib64/python2.6/site-packages/gnuradio/wxgui/stdgui2.py",
> line 38, in __init__
>     wx.App.__init__ (self, redirect=False)
>   File "/usr/lib64/python2.6/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
> line 7981, in __init__
>     self._BootstrapApp()
>   File "/usr/lib64/python2.6/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
> line 7555, in _BootstrapApp
>     return _core_.PyApp__BootstrapApp(*args, **kwargs)
>   File
> "/users/mranga/proj-dynspect.git/gnuradio/build/install/lib64/python2.6/site-packages/gnuradio/wxgui/stdgui2.py",
> line 42, in OnInit
>     self._max_noutput_items)
>   File
> "/users/mranga/proj-dynspect.git/gnuradio/build/install/lib64/python2.6/site-packages/gnuradio/wxgui/stdgui2.py",
> line 64, in __init__
>     self.panel = stdpanel (self, self, top_block_maker, max_nouts)
>   File
> "/users/mranga/proj-dynspect.git/gnuradio/build/install/lib64/python2.6/site-packages/gnuradio/wxgui/stdgui2.py",
> line 86, in __init__
>     self.top_block = top_block_maker (frame, self, vbox, sys.argv)
>   File "./uhd_fft", line 124, in __init__
>     self.scope.set_callback(fftsink_callback)
>   File
> "/users/mranga/proj-dynspect.git/gnuradio/build/install/lib64/python2.6/site-packages/gnuradio/gr/hier_block2.py",
> line 54, in __getattr__
>     return getattr(self._hb, name)
> AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback'
>
>
> --
> M. Ranganathan
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
> I'm going to guess that you're using the non-gl versions of the FFT sinks.
> And uhd_fft was recently updated to include a "frequency setter" callback.
>
> I have some patches that should fix this -- I'll try to get them in today.
>
>
>
> --
> Marcus Leech
> Principal Investigator
> Shirleys Bay Radio Astronomy Consortium
> http://www.sbrac.org


Thanks Marcus, I just applied your patch for this.

Note that the callback concept won't work with nongl stuff, but the
patch at least will allow the rest of the code to work.

Tom