2010/5/21 周亮 <cjl...@hotmail.com>: > Hi, > > These days I am trying to synchronize two USRP2 with PPS signal and UHD. > The two USRP2 is connect with same reference clock and PPS signal. I use > function "set_time_next_pps(uhd::time_spec_t(0))" to set time to be zero, > and make two USRP2 start sampling after 3 seconds. The result shows that > there is still phase difference, which means a delay( about 30ns) between > USRP2s. I tried to use the set_time_next_pps() too and had the problem, that it updates the timing information even if no PPS pulse occurs. Attached is a patch that first sets the PPS configuration and updates the timing information afterswards.
Manuel
0001-Send-timing-information-after-immediately-flags.patch
Description: Binary data
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