Hello everyone,
I'm currently developing a GNU Radio flowgraph with RFNoC 4.3 which uses the
RFNoC FFT block. According to this workshop
(https://www.youtube.com/watch?v=4XXqk0yGvCI @ 18:10) there are five runtime
parameters you have to set for the FFT block: magnitude, direction, length,
fft_scaling, shift_config.
I'm not exactly sure where in the flowgraph I can set these properties. E.g. is
setting the "Block Args" parameter of the FFT block to
"magnitude=complex,direction=1,length=1024" correct? If not, what is the right
way to set the runtime parameters?
After setting them as I described I get two python errors when trying to run
the flowgraph:
1. Setting magnitude=complex causes this:
RuntimeError: RuntimeError: Property magnitude:RuntimeError:
Cannot convert `complex' to int!
In the flowgraph, the output of the RFNoC FFT block is connected directly to an
RFNoC Rx Streamer block. It seems that all default RFNoC blocks only accept an
int input. This error seems strange and that's why I doubt that I set the
magnitude parameter correctly.
2. No matter what parameter I set for the FFT, I get the following error:
RuntimeError: ValueError: samples per package must not be smaller
than atomic item size
I was not able to find any sufficient information about this online
unfortunately.
I hope I was able to describe my problems clearly and would be glad to receive
help regarding any of those.
Thank you in advance and regards
Luca
_______________________________________________
USRP-users mailing list -- [email protected]
To unsubscribe send an email to [email protected]
