Hi Nidhi, I was able to reproduce this error. It looks like running the equivalent graph on the command-line example rfnoc_rx_to_file works; I'm not sure what's up here.
If you like, you can report this on the github.com/ettusresearch/uhd issue tracker, then you'll see what progress we make on this. Thanks for reporting! --M On Sat, Oct 19, 2024 at 1:35 PM Nidhi Panda <nidhi.pa...@cyronics.com> wrote: > 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 > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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