Ouster OS1 - time-synchronization-sensor-time-source

25.2 SensorTimeSource
Alllidar andIMU dataaretimestamped toa commontimer with10nanosecond precision.
Thecommon timercan beprogrammedtorunoffone ofthreeclocksources:
Aninternalclock derivedfroma highaccuracy,low driftoscillator.
An opto-isolated digital input from the external connectorfor timing off an external hard-
waretriggersuchasaGPS.Thepolarityofthisinputsignalisprogrammable. Forinstance,
bothaGPSPPSpulseanda30Hzframesyncfromanindustrialcameracansupplyatiming
signaltothe OS1.
UsingtheIEEE1588PrecisionTimeProtocol. PTPprovidestheconvenienceofconfiguring
timingovera networkthatsupportsIEEE1588 withnoadditional hardwaresignals.
25.3 Setting OusterSensorTimeSource
The source for measurement timestamps can be configured using the set_timestamp_mode TCP com-
mand. Theavailablemodes aredescribed below:
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