[Discuss-gnuradio] Using the dqpsk modulator

[karim]

Hi,
I am trying to use the dqpsk modulator block to modulate some data and 
then take the output and separate it to real and imag. This is the code, 
 it runs but the sinks are empty and have no data. What am I doing wrong?

I also get this when I run it:
>>> gr_fir_ccf: using SSE
What does it mean?

My code is below.
Cheers,
Karim

#no GUI
#source: stream from file_source
#connect with DQPSK: input: byte stream, output:complex
#change it to 2 parts:imagine and Real
#connect with gr.complex_to_real or gr.complex_to_imag
#display data in sink1 (real) and sink2 (imag)

class my_top_block(gr.top_block):

  def __init__(self):
    gr.top_block.__init__(self)

    src_data = (1,0,1,0,1,0,1,0)
    src = gr.vector_source_b (src_data)

    #input: unsigned char, output: complex
    qpsk = blks2.dqpsk_mod(2,.35,True, False, False)
    self.connect (src,qpsk)

    real = gr.complex_to_real()
    imag = gr.complex_to_imag()
    self.connect(qpsk,real)
    self.connect(qpsk,imag)

    sink1 = gr.vector_sink_f()
    sink2 = gr.vector_sink_f()

    self.connect(real,sink1)
    self.connect(imag,sink2)

    print "Data in sink1 is: ",sink1.data()

    print "Data in sink2 is: ",sink2.data()


if __name__ == '__main__':
    try:
        my_top_block().run()
    except KeyboardInterrupt:
        pass