On 11/14/2018 03:59 PM, Robin Coxe wrote:
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
Gahh! Cognitive pollution from other models. I apologize.
So, Chintan, you'll have to set the clock in software, using system time
from the host computer, or some other source.
On Wed, Nov 14, 2018 at 12:46 PM Marcus D. Leech via USRP-users
<[email protected] <mailto:[email protected]>> 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()
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