Re: [Discuss-gnuradio] value error

[Tom Rondeau]

Crespi Floriana wrote:
> Hi,
> I made the updating of the program, but the problem persists.
> PN sync doesn't  have problem.
> You have an idea of thing I could do for resolving the problem.
> Thank you  a lot for your help.
>   

Are you saying the system works when you use the PN synchronization 
block ofdm_sync_pn.py but not if you switch out the PN version for, say, 
the ML version (ofdm_sync_ml.py)? If that's the problem, then there is 
no current (easy) solution. In order to fix some operational problems, I 
had to make changes to the way the systems interconnect and broke the 
other synchronization methods in the process. This isn't really a 
problem since the other sync methods don't work properly, anyway. I have 
plans to fix this, but I can't say when.

Tom


> Scrive Eric Blossom <address@hidden>:
>
>   
> > On Tue, Mar 18, 2008 at 05:54:37PM +0100, Crespi Floriana wrote:
> >     
> > > Hi
> > > I have a problem with ofdm system.
> > >
> > > Each time I run benchmark_ofdm_rx.py I get;
> > >
> > > Traceback (most recent call last):
> > >   File "benchmark_ofdm_rx.py", line 210, in <module>
> > >     main()
> > >   File "benchmark_ofdm_rx.py", line 199, in main
> > >     tb = my_top_block(rx_callback, options)
> > >   File "benchmark_ofdm_rx.py", line 64, in __init__
> > >     self.rxpath = receive_path(callback, options)
> > >   File "/home/crespi/Desktop/Workspace_flo/receive_path.py", line 52, in
> > > __init__
> > >     blks2.ofdm_demod(options, callback=self._rx_callback)
> > >   File "/usr/local/lib/python2.5/site-packages/gnuradio/blks2impl/ofdm.py",
> > >       
> > line
> >     
> > > 209, in __init__
> > >     self.ofdm_recv = ofdm_receiver(self._fft_length,
> > > self._cp_length,self._occupied_tones, self._snr, preambles,options.log)
> > >   File
> > >
> > >       
> > "/usr/local/lib/python2.5/site-packages/gnuradio/blks2impl/ofdm_receiver.py",
> >     
> > > line 107, in __init__
> > >     self.connect((self.ofdm_sync,1), (self.ofdm_frame_acq,1))
> > >   File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/hier_block2.py",
> > >       
> > line
> >     
> > > 70, in connect
> > >     self._connect(points[i-1], points[i])
> > >   File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/hier_block2.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 946, in connect
> > >     return _gnuradio_swig_py_runtime.gr_hier_block2_sptr_connect(*args)
> > > ValueError: port number 1 exceeds max of 0
> > >
> > >
> > >
> > > I use  realese number 7324 and  kubuntu 7.04
> > >
> > > Do you have some idea of which the problem is???
> > >
> > > Thanks a lot of
> > >