Hi Adrià, If you are trying to use 'timed' commands, perhaps the problem is the signal generator block. If I remember correctly, this block does not support timed commands. This means that the resulting data stream will not include a time stamp and thus if you try to tune the DDC or DUC using a timed command, it will delay the command until the appropriate time stamp is seen (which will never occur in your case). If you are not using timed commands, then just ignore this.... Rob
On Thu, Feb 13, 2020 at 6:40 PM Adria via USRP-users < usrp-users@lists.ettus.com> wrote: > Dear all, > > I'm trying to tune the output and input frequency of an X310 + UBX-160. > I instantiate the radio block and the DDC and DUC blocks and connect them. > > The TX chain is like this: [Signal generator] -> [DUC] -> [Radio block]. > > My intention is to use the DUC only for frequency tuning, since I set > the UBX synthesizers to Integer-N mode. > > The fact is that configure the DUC frequency by setting the "freq" > parameter using the set_param call has no effect. > > Trying to set the DUC frequency using tune_request through the dsp_freq > parameter has no effect either. > > My other question is about the Integer-N tuning. Is there a way to set > the integer mode without using the tune_request object? I expected to be > able to do that using radio_ctrl. > > I am sure I'm missing something but I don't know where else to look, so > any help would be appreciated. > > I'm using UHD 3.14. > > Thanks! > > > Adrià Amézaga > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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