Hello,
I am having USRP X300 device with following tool versions:
Vivado 2021.1 - AR76780n,
GNU radio version - v3.11.0.0git-820-g2adbd4ea
UHD version - UHD_4.7.0.0-84-gbdada1ed
I am trying to use the default example present in the GNU radio example
folder *"rfnoc_radio_ddc.grc"*. *I* am able to down convert the input
signal with the desired frequency however on using frequency shift feature
it hives following error:
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
[ERROR] [RFNOC::GRAPH::DETAIL] 0/DDC#0: RfnocError: ResolveError:
Attempting to overwrite property `freq@USER:0' with a new value after it
was locked!
Traceback (most recent call last):
File "/home/quasar/gnuradio/gr-uhd/examples/grc/rfnoc_radio_ddc.py", line
330, in <module>
main()
File "/home/quasar/gnuradio/gr-uhd/examples/grc/rfnoc_radio_ddc.py", line
309, in main
tb.start()
File "/usr/local/lib/python3.8/dist-packages/gnuradio/gr/top_block.py",
line 116, in start
top_block_start_unlocked(self._impl, max_noutput_items)
RuntimeError: RfnocError: ResolveError: Attempting to overwrite property
`freq@USER:0' with a new value after it was locked!
I have used the default .bit file which includes DDC blocks. Please suggest
how to resolve this.
--
Regards,
*Nidhi Panda*
*Cyronics Innovation Labs Pvt Ltd*
#11, Electronics Co-op Estate
Satara Road, Pune - 411009
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