Re: [Discuss-gnuradio] Delay of synchronization with PPS and UHD on USRP2

[Josh Blum]

> > When performing set_time_next_pps(...) you will want a sleep(1) prior to
> > starting streaming. Because it could take as much as 1 second for the
> > registers to latch the new time value.
> Yes, I have used sleep(1) commmand after I call set_time_next_pps() function. The 
> problem is that if I replace the mode "
> STREAM_MODE_NUM_SAMPS_AND_DONE" with " STREAM_MODE_START_CONTINUOUS ",it works. 
>  The rest of code is same.

Ok, just checking. I will try to reproduce the problem on monday.

Two more questions:

1) When you used STREAM_MODE_NUM_SAMPS_AND_DONE, was there a time set, 
and if so, was it greater than the time set by set_time_next_pps?

2) When you used STREAM_MODE_START_CONTINUOUS, did the timestamps on the 
RX packets appear to be correct (after the time set by set_time_next_pps)?

Thanks,
-Josh