On Fri, Mar 23, 2012 at 10:18 AM, Vincenzo Pellegrini <[email protected]>wrote:
> Hi Nick, > I have noticed that "j101" onboard the B100 outputs a 64 MHz reference. > > Could it be possilble to feed that signal somehow into a second USRP B100 > to be used as a reference? > You would have to go through some gymnastics (read: soldering) to get that reference into the second B100, and some code rework to recalculate clock rates based on a 64MHz (or divisor of 64MHz) instead of 10MHz. > > Could it be possible as an alternative to lock two B100 to an external 10 > MHz reference while still working at 8Msps sample rate ? > Yes, this is what the ref in connectors are for. The external reference is independent of the sample rate. The B100s will continue to operate normally, except locked to each other. --n > > my best regards > > vincenzo > > > > > Il giorno 23 marzo 2012 16:54, Nick Foster <[email protected]> ha scritto: > > On Fri, Mar 23, 2012 at 3:41 AM, Vincenzo Pellegrini <[email protected]>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. >>> >> >> Vincenzo, >> >> The ref in input on B100 is intended to accept a 10MHz signal. Multiple >> B100s can be synchronized by using a common reference, but there is no >> facility to lock two B100s to each other without a common external >> reference. >> >> --n >> >> >>> >>> thank you >>> >>> vince >>> >>> -- >>> Vincenzo Pellegrini >>> http://www.youtube.com/user/wwvince1 >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> [email protected] >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >>> >> > > > -- > Vincenzo Pellegrini > http://www.youtube.com/user/wwvince1 >
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