With the development of information society, the demand for timing synchronization has expanded from independent systems to distributed systems, and the requirement for high-precision time and frequency synchronization technology becomes increasingly imperative. At present, the precise time protocol (PTP) is one of the most suitable synchronization technologies for building a time and frequency synchronization network. The precise time protocol (PTP) is a high-precision time synchronization standard defined by the IEEE 1588 profile. It is implemented at the physical layer level in the OSI model, and uses hardware timestamps with synchronization accuracy as good as ns level. At the same time, during the PTP message interaction process, clock signals can be transmitted and recovered from the physical layer link to realize frequency synchronization.
Due to the increasing demand and wide application of PTP synchronization, there has been a trend in the industry to integrate PTP protocol and synchronization algorithms into a SOC clock chip or embed them into PHY chips.
As for the synchronization performance testing at the chip level and the testing of Ethernet PHY chips with speeds ranging from 1G to 100G, XGTIME has proposed corresponding solutions to meet the needs.
