[Discuss-gnuradio] Trouble with gr_costas_loop_cc

[wxwize]

Hello,

I am working on demodulating a BPSK signal (a manchester coded stream of 
pseudorandom bits.)  I'd like to use a gr_costas_loop_cc block to recover the 
carrier.  However, when I try to create the block with all five args (alpha, 
beta, max_freq, min_freq, and ref_phase) as floats, python returns the 
following:

" TypeError: argument number 5: a 'long' is expected, 'float(0.1)' is received "

where 0.1 is the value assigned to ref_phase, the fifth parameter.  

If I make ref_phase=0, then the error returned by python is: 
" RuntimeError: std::invalid_argument "

In both cases, error appears to originate from costas_loop_cc in 
gnuradio_swig_python.py.  Source code for gr_costas_loop_cc indicates that it 
definately wants all floats, so why is expecting a long for the fifth parameter?

Any feedback on this would be greatly appreciated!

Best regards,
Jon





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