Hi all,
I'm trying to read the real-time value of a stream from USRP. I'm
considering using gr.probe_signal_f, but it seems to not work. I'm really
new to GNURadio, so please forgive me if I ask some stupid question.
My method is like this:
#First generate a source from USRP:
self.source = uhd.usrp_source(device_addr='',
stream_args=uhd.stream_args('fc32', 'sc16'), args='scalar=1024')
#change from complex to interleaved short:
op1 = gr.complex_to_interleaved_short()
#change from short to float
op2 = gr.short_to_float()
#create probe
self.probe = gr.probe_signal_f()
self.connect(self.source, op1, op2, self.probe)
And in a true while loop, I print the value of the probe, but the value is
always 0.0
Could anyone tell me what is the problem? And is there any better way to
realize this function?
Thanks.
Wu
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