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Diffstat (limited to 'host/docs/sync.rst')
| -rw-r--r-- | host/docs/sync.rst | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/host/docs/sync.rst b/host/docs/sync.rst index 7e9ea11f4..152349990 100644 --- a/host/docs/sync.rst +++ b/host/docs/sync.rst @@ -121,25 +121,23 @@ synchronized via the 10MHz and PPS inputs, the streaming will start at exactly the same time on both devices. The CORDICs are reset at each start-of-burst command, so users should ensure that every start-of-burst also has a time spec set. -For receive, a burst is started when the user issues a stream command. This stream command should have a time spec set. - +For receive, a burst is started when the user issues a stream command. This stream command should have a time spec set: :: uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE); - stream_cmd.num_samps = spb; + stream_cmd.num_samps = samps_to_recv; stream_cmd.stream_now = false; - stream_cmd.time_spec = uhd::time_spec_t(seconds_in_future); + stream_cmd.time_spec = time_to_recv; usrp->issue_stream_cmd(stream_cmd); -For transmit, a burst is started when the user calls send(). The metadata should have a time spec and start of burst set. - +For transmit, a burst is started when the user calls send(). The metadata should have a time spec and start of burst set: :: uhd::tx_metadata_t md; md.start_of_burst = true; md.end_of_burst = false; md.has_time_spec = true; - md.time_spec = uhd::time_spec_t(time_to_send); + md.time_spec = time_to_send; //send a single packet size_t num_tx_samps = usrp->get_device()->send( |