| Automated test equipment system bus and the development of computer technology while also moves forward. Test equipment for the use of user feedback and requirements, LXI bus technology alliance by the LXI VXI bus technology from the original on the basis of norms and proposed. As the performance benefits of LXI devices and the relationship between time to market, other bus technologies such as PXI, VXI and LXI devices will co-exist in a variety of test equipment systems; and on the LXI bus technology development trends and related research has become the industry attention.LXI is a web-based instrument interface specification, to achieve synchronization between the various terminal equipment control, using the precision time protocol over Ethernet (Precision Time Protocol, PTP), or IEEE1588. IEEE1588 defines a measurement and control networks and network communication, local computation and the exact distribution of objects on the clock synchronization protocol (PTP).IEEE1588 defines a measurement and control systems can achieve high-precision clock synchronization protocol - Precision Time Protocol (Precision Clock Synchronization). PTP protocol integrated network communication, local and distributed object computing and many other technologies, applicable to all local area network by supporting multicast communication in distributed systems, particularly suitable for Ethernet, but not limited to Ethernet. It can make different types of system accuracy, resolution and stability to synchronize the clock, take the least network and local computing resources and allows the system to achieve sub-microsecond synchronization accuracy.This paper focuses on the LXI bus automatic test system based on structural system of precision clock synchronization system, we will IEEE 1588 Precision Clock Synchronization Protocol for the introduction of LXI bus system and implemented so as to resolve attached to the LXI bus synchronization between different devices. |
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