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Time Synchronisation and Hardware Time Stamps
Raghav Khanna edited this page Mar 17, 2017
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When you send a sync command (asking the flight controller to sync at some frequency F_SYNC), the timestamp packets you receive from the FC start sending you a software "clock pulse" - a sync byte that has value '1' at time intervals 1/F_SYNC and '0' at all other time instants. Sending the sync command also resets the free-running counter generating the timestamp.