Hi Koen, The way to achieve what you want is to set the device time and then have your signal generator put timestamps in each packet relative to that time. To tell your custom block what time to use, you can have a user register that you also program with the time (or some future start time).
Regards, Michael On Wed, Jun 6, 2018 at 11:24 PM, TIMMEN Koen via USRP-users < usrp-users@lists.ettus.com> wrote: > Hello, > > > > My block is a signal generator and each sample needs to be transmitted at > an accurately known instant. The samples themselves do not need to hold > this information. > > > > The device I am using is the X310. > > > > What Neel Pandeya is suggesting sounds like exactly what I’m trying to do. > > > > Thank you for your responses. > > > > Regards, > > > > Koen Timmen > > > > > > *De :* Neel Pandeya [mailto:neel.pand...@ettus.com] > *Envoyé :* jeudi 7 juin 2018 06:14 > *À :* TIMMEN Koen > *Cc :* usrp-users@lists.ettus.com > *Objet :* Re: [USRP-users] vita time > > > > Hello Koen: > > > > As Ian requested, could you please provide additional detail on exactly > what you're trying to do? > > > > Are you merely trying to access the 64-bit FPGA VITA time from within the > RFNoC block? > > > > Which device are you using? > > > > --Neel Pandeya > > > > > > > > > > On 5 June 2018 at 09:24, Ian Buckley via USRP-users < > usrp-users@lists.ettus.com> wrote: > > Koen, > > Can you expand a little on the functionality you need pls, its not fully > clear enough to me to make a suggestion. > > Are you trying to extract time from incoming samples or apply time to > samples you are processing? > > -Ian > > > > > > On Jun 5, 2018, at 7:36 AM, TIMMEN Koen via USRP-users < > usrp-users@lists.ettus.com> wrote: > > > > Hello all, > > > > Currently I’m working on a RFNoC block that requires a known time > reference, but I have trouble making this value available. Ideally I would > like to have the value available in a register designated to the block. > > > > As I understand, a time reference is available through the CHDR, but.. not > all the time? It is optional I read in the manual. Is this a toggle that > can be set by the user? > > > > Or is there another way that I am able to obtain the device time reference > available in a user register? > > > > Kind regards, > > > > Koen > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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