I'm using Ubuntu 17.04 + Zedboard + FMCOMMS2 + Remote IIO with sample rate=2.084M , freq= 5k, cylic=true & LO=2.4G, Manual Gain Mode. I just run simple signal source (cyclic -sine), sine wave that transmit from TX1A and received on RX1A. Today my project is to plot signal source and receive signal in the same time sink, so that I can observe phase different between source TX and receive part RX.
and I can see the good response
now I would like to merge both Signal Source and Received Signal on the same probe as shown in figure flowgraph1.png so that phase different between two waveform can be observed.
the result is unexpected, seem receive signal fail to display and the waveform is freeze/hang.
Then for further verification, I remove hardware usage (fmcomms2 sink/source) and put a delay to emulate phase different and the result shows two different waveforms with different phase able to simulate.
Can someone share why this kind of behavior occurs when using the hardware/fmcomms2..
There is limitation on configuration fmcomms2 on flowgraph/GNUradio ?