On 01/03/2011 12:15 PM, Sangho Oh wrote: > If I synchronize two USRPs using pps clock > > uhd::time_spec_t time_spec = uhd::time_spec_t(0.0); > sdev->set_time_next_pps(time_spec); > boost::this_thread::sleep(boost::posix_time::seconds(1)); >
You may want to print out sdev->get_time_now().get_real_secs() to see that it really got the PPS edge. > and give the metadata for the frame as following > > md.time_spec = uhd::time_spec_t(seconds_in_future); > > When is the packet is being transmitted? > I believe md.time_spec specify the delay of transmission, which is not an > absolute time of the transmission. > md.time_spec is an absolute time there is a working example in uhd/host/examples/tx_timed_samples.cpp -Josh _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
