Re: [Discuss-gnuradio] B100 as clock master + B100 as clock slave

[Josh Blum]

On 03/23/2012 03:41 AM, Vincenzo Pellegrini wrote:
> Hi everybody,
> 
> just a very quick question:
> 
> is it possible to enslave the clock of a B100 to the clock of another B100
> via the "REF IN" input or in some other way?
> More precisely, is there a way to extract the clock signal from a B100 and
> feed it into another B100 to enslave the latter to the former?
> 
> It would be great to be able to keep them in frequency and phase synch that
> way.
> 

It just dawned on me, and this may be a good idea in general:

There is a clock sync pin (cgen_sync_b in the fpga top level).
Presumably, a shared PPS could trigger the clock sync signal across
multiple B100. This would synchronously reset the phase across all N
devices. It would require a little FPGA work.

-Josh