Re: [Discuss-gnuradio] Trace mpsk_receiver_cc()

[Tom Rondeau]

irene159 wrote:
> OK, so far I have been able to call gr.mpsk_receiver_cc.freq() from dqpsk.py
> even if I haven't found were it is coded.
>
>         print "NCO frequency : %f" % self.receiver.freq()
>
> My purpose is to study mpsk_receiver_cc Costas loop features and I would
> like to get Costas loop NCO frequency value for each circle in the loop. But
> how can I do this?

You'll probably want to do this inside gr_mpsk_receiver.cc instead of 
calling the freq() function if you want to get a report of the value for 
every iteration of the loop.

The frequency value (d_freq) is update in:
*gr_mpsk_receiver_cc::phase_error_tracking

You can also turn on verbose mode by setting VERBOST_COSTAS to 1 at the 
top of gr_mpsk_receiver.cc and recompiling/installing. This pumps out a 
lot of info on the current state of the loop.

Tom

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