[Discuss-gnuradio] mc4020 + microtune -- ValueError: source and destination data sizes are different

[James Cooley]

Hello, can anyone provide any advice on this error? We just built from 
the CVS and are using a Measurement Computing card with a microtune 
4937. Other examples, particularly audio (dialtone, audio_play) work well.

Thanks,

-Jamie

============================================================================


bash-2.05b$ ./mc4020_fft.py 400
Traceback (most recent call last):
 File "./mc4020_fft.py", line 53, in ?
   main ()
 File "./mc4020_fft.py", line 49, in main
   app = stdgui.stdapp (app_flow_graph, "USRP FFT")
 File 
"/usr/local/gnuser/gnuradio/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py", 
line 35, in __init__
   wx.App.__init__ (self)
 File 
"/usr/lib/python2.3/site-packages/wx-2.5.3-gtk2-unicode/wx/_core.py", 
line 5301, in __init__
   self._BootstrapApp()
 File 
"/usr/lib/python2.3/site-packages/wx-2.5.3-gtk2-unicode/wx/_core.py", 
line 4980, in _BootstrapApp
   return _core_.PyApp__BootstrapApp(*args, **kwargs)
 File 
"/usr/local/gnuser/gnuradio/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py", 
line 38, in OnInit
   frame = stdframe (self.flow_graph_maker, self.title)
 File 
"/usr/local/gnuser/gnuradio/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py", 
line 60, in __init__
   self.panel = stdpanel (self, self, flow_graph_maker)
 File 
"/usr/local/gnuser/gnuradio/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py", 
line 80, in __init__
   self.fg = flow_graph_maker (frame, self, vbox, sys.argv)
 File "./mc4020_fft.py", line 44, in __init__
   self.connect (cvt, block)
 File 
"/usr/local/gnuser/gnuradio/lib/python2.3/site-packages/gnuradio/gr/basic_flow_graph.py", 
line 85, in connect
   self._check_type_match (src_endpoint, dst_endpoint)
 File 
"/usr/local/gnuser/gnuradio/lib/python2.3/site-packages/gnuradio/gr/basic_flow_graph.py", 
line 192, in _check_type_match
   raise ValueError, 'source and destination data sizes are different'
ValueError: source and destination data sizes are different
Unhandled exception in thread started by <bound method 
input_watcher.__bootstrap of <input_watcher(Thread-1, stopped daemon)>>
Traceback (most recent call last):
 File "/usr/lib/python2.3/threading.py", line 451, in __bootstrap
   self.__stop()
 File "/usr/lib/python2.3/threading.py", line 460, in __stop
   self.__block.notifyAll()
 File "/usr/lib/python2.3/threading.py", line 256, in notifyAll
   self.notify(len(self.__waiters))
 File "/usr/lib/python2.3/threading.py", line 238, in notify
   currentThread() # for side-effect
TypeError: 'NoneType' object is not callable
bash-2.05b$