To clarifiy, the B200mini, B200mini-i, and B205mini-i do not have an on-board GPSDO, but they do have 1 PPS and 10 MHz Reference Inputs.
-Robin On Wed, Nov 14, 2018 at 12:46 PM Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com> wrote: > On 11/14/2018 02:37 PM, Chintan Patel via USRP-users wrote: > > Hi, > > > > A conceptual question: for the b205 mini, how does the FPGA get the > > 64-bit VITA timefield? I know the PPS/10 MHz can be used to sync the > > clocks to, but trying to understand how the timestamp is synchronized > > to a UTC/known-good reference value. Reading the HDL, it seems that > > the timestamp is programmed from software, but needed confirmation. > > > > Thanks > > Chintan > > > > > The software side of things takes care of that. If the on-board GPSDO > is working, it will get a GPS-based timestamp from that. > > Otherwise, the application can set the time to whatever it wants see API > elements: > > set_time_now() > set_time_next_pps() > set_time_unknown_pps() > > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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