Re: [Discuss-gnuradio] NOOB needs help with simple.py

[Sebastian Heyn]

Hi Marcus,

thanks for your honest words. 

I figured out howto do it using the grc. Its an interesting tool, and results 
can be achieved quickly, even if the problem requires a rather complex flow. 

I am sure I'll nag about other problems sooner or later :-))

--------------------------------------------
Marcus Müller <address@hidden> schrieb am Di, 1.7.2014:

 Betreff: Re: [Discuss-gnuradio] NOOB needs help with simple.py
 An: address@hidden
 Datum: Dienstag, 1. Juli, 2014 22:37 Uhr
 
 Hi Sebastian,
 I admit I did not go through your whole post,
 since that would require
 reading someone
 else's python. Most likely, that website is for an
 older
 version of GNU Radio, and that's
 why you can't import some stuff;
 gr.block_name looks like pre-3.7 GNU Radio.
 
 I always encourage people to
 start off with the beginners' tutorials[1]
 over at gnuradio.org, since we, as a community,
 try to make sure that
 they don't become
 obsolete, and only look at tutorials elsewhere once
 they are used to GNU Radio enough to understand
 what's going on with a
 little research
 themselves.
 
 So: do not be
 discouraged to continue learning, it's really fun and
 rewarding!
 Happy Hacking,
 Marcus
 
 [1] http://gnuradio.org/redmine/projects/gnuradio/wiki/Tutorials
 As soon as you reach the
 WritePythonApplications tutorial, they even
 have the signal-to-soundcard example, so no
 need to look elsewhere ;)
 
 
 On 01.07.2014 22:20, Sebastian
 Heyn wrote:
 > Hi all,
 >
 > I wanna work into
 this project, as I think its excellent!
 >
 My box is a gentoo box running
 >
 > net-wireless/gnuradio-3.7.3:0/3.7.3 
 USE="alsa analog digital examples fcd filter grc pager
 qt4 sdl uhd utils wavelet wxwidgets -doc -jack -oss
 -performance-counters -portaudio"
 PYTHON_SINGLE_TARGET="python2_7"
 PYTHON_TARGETS="python2_7" 
 >
 >
 >
 For the first experiments I found this page giving a scope
 and fft display of the soundcard input,
 >
 >
 >
 http://www.funwithelectronics.com/?id=10
 >
 > the py file looks
 like this
 >
 >
 #!/usr/bin/env python
 >
 > from gnuradio import gr
 > from gnuradio.wxgui import
 stdgui2,fftsink2,scopesink2
 > import
 wx
 >
 > class
 gnuradioGUI(stdgui2.std_top_block):
 >
     def __init__(self,frame,panel,vbox,argv):
 >        
 stdgui2.std_top_block.__init__(self,frame,panel,vbox,argv)
 >         
 >    
     fft = fftsink2.fft_sink_f(panel, title="FFT
 display", fft_size=512, sample_rate=100000)
 >        
 vbox.Add(fft.win,4,wx.EXPAND)
 >    
     
 >
 >    
     scope = scopesink2.scope_sink_f(panel,
 title="Oscilloscope", sample_rate=100000)
 >        
 vbox.Add(scope.win,4,wx.EXPAND)
 >    
     
 >         signal =
 gr.sig_source_f(100000,gr.GR_SIN_WAVE,20000,1000,0)
 >         throttle =
 gr.throttle(gr.sizeof_float,100000)
 >
         self.connect(signal,throttle)
 >        
 self.connect(throttle,fft)
 >    
     self.connect(throttle,scope)
 >
 > if __name__ == '__main__':
 >     app =
 stdgui2.stdapp(gnuradioGUI,"A simple GNU Radio
 GUI")
 >     app.MainLoop()
 >     
 >
 >
 >
 >
 when I try to start this
 >
 > #python2.7 simple.py
 >
 > Using Volk machine:
 avx_32_mmx_orc
 > Traceback (most recent
 call last):
 >   File
 "./simplegui.py", line 25, in <module>
 >     app =
 stdgui2.stdapp(gnuradioGUI,"A simple GNU Radio
 GUI")
 >   File
 "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py",
 line 46, in __init__
 > 
    wx.App.__init__ (self, redirect=False)
 >   File
 "/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
 line 7981, in __init__
 > 
    self._BootstrapApp()
 >   File
 "/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
 line 7555, in _BootstrapApp
 > 
    return _core_.PyApp__BootstrapApp(*args,
 **kwargs)
 >   File
 "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py",
 line 49, in OnInit
 > 
    frame = stdframe (self.top_block_maker,
 self.title, self._nstatus)
 >   File
 "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py",
 line 76, in __init__
 > 
    self.panel = stdpanel (self, self,
 top_block_maker)
 >   File
 "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py",
 line 98, in __init__
 > 
    self.top_block = top_block_maker (frame, self,
 vbox, sys.argv)
 >   File
 "./simplegui.py", line 18, in __init__
 >     signal =
 gr.sig_source_f(100000,gr.GR_SIN_WAVE,20000,1000,0)
 > AttributeError: 'module' object
 has no attribute 'sig_source_f'
 >
 >
 >
 > but then nothing is
 displayed 
 >
 > can
 someone experienced please give me a hint??
 >
 >
 >
 >
 _______________________________________________
 > Discuss-gnuradio mailing list
 > address@hidden
 > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
 
 
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