Hello!
I'm having some issues while trying to transmit a signal using the
RFNoC: Radio block in Gnuradio. My block diagram is:
Signal Source (constant) -> RFNoC: DmaFIFO -> RFNoC: Radio (in
TX mode).
I run the block diagram by calling "python top_block.py" from the
command line and I'm not getting any errors while it's running .
However, I'm unable to quit it properly without having to close the
terminal window and power-cycle the USRP. When connecting the USRP to a
spectrum analyzer I see no signal whatsoever (I expect to see a peak at
2.4 GHz).
Removing the DmaFIFO does not seem to make any difference. My FPGA image
is a custom image with some of my CEs, but it was built smoothly using
the "uhd_image_builder.py" script. I've also experienced similar
problems while having a RFNoC: DUC between the DmaFIFO and the Radio
block, also with a custom FPGA image. With the stock FPGA image I was
able to get a signal with more or less the same Gnuradio block diagram.
Why am I not seeing any output with my custom FPGA images? All
suggestions appreciated.
I'll happily provide more info if needed, so don't hesitate to ask. For
know, I'll just provide the basics:
OS: Ubuntu 18.04
uhd: rfnoc-devel, eec24d7b0
gnuradio: maint-3.7, c6c575309
gr-ettus: master, a909447
Thanks in advance!
//
Leon
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