On Fri, May 23, 2025 at 9:44 AM Kevin Williams <kevin.williams@vastech.co.za> wrote: > Hi Martin, > > > > I read too quickly – you said splitter and duc DON’T accept stream > commands. > Misunderstanding: The Radio-input-ports do not accept stream commands. The split-stream and DUC blocks will happily forward them. > Is it not correct, then, to DROP streaming commands instead? > Your PolConverter should one-to-fan (which it seems it does). > > > What I would really like is for a streaming command that starts the whole > pol converter stream processing to start the TX side as well, automatically. > If you remove the timestamps, then TX will start automatically. If neither your PolConverter nor your UHD host code needs timestamps, you can simply turn them off in the radio: https://uhd.readthedocs.io/en/latest/classuhd_1_1rfnoc_1_1radio__control.html#a4a8f86f1fac5a9c356a76744aebfcc91 --M

If you haven't seen it, the stock example rfnoc_radio_loopback <https://github.com/EttusResearch/uhd/blob/master/host/examples/rfnoc_radio_loopback.cpp> might be helpful to look at. This should work with a stock image to show a simple loopback from Rx to Tx. If you modify freqs (ddc/duc or radio freqs), you can have your loopback implement frequency conversion. Rob On Fri, May 23, 2025 at 7:17 AM Martin Braun <martin.braun@ettus.com> wrote: > > > On Fri, May 23, 2025 at 9:44 AM Kevin Williams < > kevin.williams@vastech.co.za> wrote: > >> Hi Martin, >> >> >> >> I read too quickly – you said splitter and duc DON’T accept stream >> commands. >> > > Misunderstanding: The Radio-input-ports do not accept stream commands. The > split-stream and DUC blocks will happily forward them. > > >> Is it not correct, then, to DROP streaming commands instead? >> > > Your PolConverter should one-to-fan (which it seems it does). > >> >> >> What I would really like is for a streaming command that starts the whole >> pol converter stream processing to start the TX side as well, automatically. >> > > If you remove the timestamps, then TX will start automatically. If neither > your PolConverter nor your UHD host code needs timestamps, you can simply > turn them off in the radio: > https://uhd.readthedocs.io/en/latest/classuhd_1_1rfnoc_1_1radio__control.html#a4a8f86f1fac5a9c356a76744aebfcc91 > > --M > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-leave@lists.ettus.com >