On Mon, Mar 9, 2009 at 17:22, Adi85 <adidavi...@yahoo.com> wrote: > > > Ok..here is my code and my error message: > > class topBlock(gr.top_block): > def __init__(self): > gr.top_block.__init__(self) > > fftsize = 4096 > udecim = 256 > > mywin = window.blackmanharris(fftsize) > fft = gr.fft_vcc(fftsize, True, mywin) > > signal = usrp.source_c(0,udecim) # signal from Basic RX, > decimation=256 > throttle = gr.throttle(gr.sizeof_gr_complex, 100000) # > throttle=100k > v = gr.stream_to_vector(gr.sizeof_gr_complex, fftsize) # complex > in, 4096 length > > v_sink = gr.vector_sink_c() > > self.connect(signal, throttle, v, fft, v_sink) > > # Do stuff with v_sink.data() > > if __name__ == "__main__": > print "Initilizing.." > tb = topBlock() > print "Flowgraph start.." > tb.start() > print "Exiting.." > > > Error message: > Initilizing.. > Traceback (most recent call last): > File "u0.py", line 30, in <module> > tb = topBlock() > File "u0.py", line 24, in __init__ > self.connect(signal, throttle, v, fft, v_sink) > File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/top_block.py", > line 70, in connect > self._connect(points[i-1], points[i]) > File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/top_block.py", > line 76, in _connect > dst_block.basic_block(), dst_port) > File > "/usr/local/lib/python2.5/site-packages/gnuradio/gr/gnuradio_swig_py_runtime.py", > line 1469, in connect > return _gnuradio_swig_py_runtime.gr_top_block_sptr_connect(*args) > ValueError: itemsize mismatch: fft_vcc_fftw(1):0 using 32768, > vector_sink_c(5):0 using 8 > > > To be more specific I have a complex fft connected to a complex vectors sink > so I do not know why it apears Item size mismatch! > > Thank you > -- > View this message in context: > http://www.nabble.com/Spectrum_sense-of-a-smaller-banwidth-tp22413464p22413681.html > Sent from the GnuRadio mailing list archive at Nabble.com. > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
throw out the gr.throttle and the gr.stream_to_vector Dimitris Symeonidis "If you think you're too small to make a difference, try sleeping with a mosquito!" - Amnesty International _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
