Master-end device, slave-end device and master-end delay adjustment synchronization timing system

Abstract

The embodiment of the invention provides a master end device, a slave end device and a master end delay adjustment synchronous timing system. The master end device comprises a master end clock, an adder, a first delay adjustor, a first transmitter, a first receiver, a second delay adjustor and a phase discrimination / phase lock controller. According to the master end delay adjustment synchronous timing system provided by the invention, the design of a slave end can be simplified, thereby facilitating use of different users.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a master-end device, a slave-end device, and a master-end delay adjustment synchronization timing system. Background technique [0002] At present, the distributed measurement and control system used in large-scale scientific accelerators requires the use of synchronous timing technology in order to allow data from different measurement devices to have time information in the same time domain and to allow different control devices to work synchronously. Let each subsystem have the same clock. [0003] At present, Ethernet is widely used in various large-scale distributed communication and control systems. Combining synchronous timing technology with Ethernet technology is popular, called synchronous Ethernet, including IEEE1588 standard and SyncE technology, which can achieve sub-microsecond timing accuracy. The White Rabbit technology developed on the basis of the above ...

AI Technical Summary

Problems solved by technology

In this way, the design from the end is relatively complicated, which greatly limits the promotion of this technology.

Because any application, such as a data acquisition system, if you want to use White Rabbit technology, then the hardware design needs to add DDMTD and delay adjuster, and at the same time, you must understand the communication protocol of White Rabbit and implement it in the software algorithm, which obviously increases Reduced the complexity of the design from the end, which is not convenient for users to use

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