Hello,
i am currently working on a small project using an USRP X310 combined
with UHD 4.0, gr-ettus 3.8 and GNUradio 3.8 on Ubuntu 20.04.
The final goal would be to implement the following flowgraph on an FPGA
without transferring data to the host in between:
RX Radio ( -> DDC) -> FIR (-> DUC) -> TX Radio
I followed the workshop example and implemented the gain block
successfully and it works for the mentioned examples. I tried to
implement the above mentioned flowgraph with the gain block instead of a
FIR filter for testing purposes. This setup does not seem to work
correctly even tough GNUradio does not display any errors messages. The
TX Radio does not transmit a signal, even if there is an input on the RX
Radio Part. Weirdly enough, if i use the following flowgraph
RX Radio -> DDC -> RX Streamer -> TX Streamer -> gain -> DUC -> TX Radio
the setup works and successfully relays the signal but routes the data
through the host which i want to avoid since the goal is to fully
process the signal on the FPGA.
Greetings and thanks in advance,
Michael
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