Airborne network IEEE1588 protocol transparent clock port synchronization method
An IEEE1588, transparent clock technology, applied in the direction of synchronization devices, digital transmission systems, electrical components, etc., can solve the problems of clock synchronization, boundary clock synchronization error step-by-step amplification, etc.
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[0026] The IEEE1588 protocol transparent clock port synchronization method for an airborne network of the present invention, the IEEE1588 protocol transparent clock includes an uplink analysis unit, an uplink encapsulation unit, a PTP message processing unit, a downlink encapsulation unit, a downlink analysis unit, a PTP time stamp and dwell time bridge unit, and a processing unit. device, local clock unit, and MAC hard core (see figure 1 and figure 2 ), the steps for synchronizing the transparent clock and the slave clock are as follows:
[0027] Step 1: Receive the synchronization (Sync) message sent to the local and record the arrival time stamp of the synchronization (Sync) message
[0028] The MAC hard core receives the local synchronization (Sync) message sent by the main clock port of the PTP domain, and at the same time, the PTP time stamp unit records the time stamp t2 of the synchronization (Sync) message arriving at the GMII / MII interface, and reports t2 to the lo...
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