A method and device for realizing an optical port, and a field programmable gate array device

Abstract

The present invention provides an optical port implementation method, device and field programmable gate array device, wherein the optical port implementation method is applied to a field programmable gate array FPGA device, and the method includes: receiving a data message during network transmission; When the data message is a message received by the SFP optical module, the data message is sequentially subjected to gigabit serial-to-parallel conversion, oversampling, clock recovery, phase adjustment, and time stamp processing to obtain a 100M optical port The first direction message transmitted; when the data message is a message that needs to be sent through the SFP optical module, the data message is sequentially subjected to time stamp processing, rate matching and gigabit serial-to-parallel conversion to obtain hundreds of Packets in the second direction transmitted by the mega-optical port. In this way, the purpose of reducing the density of the single board and controlling the cost can be achieved. In addition, when the data message is timestamped, it does not go through any cache, which does not affect the performance requirements of the 1588 time clock.

Description

technical field [0001] The invention relates to the technical field of optical transmission, in particular to an optical port realization method, device and field programmable gate array device. Background technique [0002] In modern mobile communication networks, time synchronization between communication devices is required to ensure that users will not experience disconnection and other failures when switching between base stations during the mobile process. Currently, only GPS and IEEE 1588 can meet this requirement. GPS is inconvenient to promote in an all-round way due to system cost and safety limitations. IEEE1588 is usually called Precision Time Protocol, or PTP protocol, and its full name is: a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems. The IEEE 1588 system only needs a high-precision clock source to be input into the bearer network, and the clock time information of each base station can be automatically realized acco...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an optical port implementation method, device and field programmable gate array device to solve the problem in the prior art that an additional PHY device is needed or a switching chip that supports 1588 functions needs to be selected

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