Device for realizing high-speed real-time communication by optical fibers based on FPGA (Field Programmable Gate Array)

Abstract

The invention discloses a device for realizing high-speed real-time communication by optical fibers based on an FPGA (Field Programmable Gate Array). The device comprises an application layer, a transmission layer and a physical layer, wherein the transmission layer comprises an FPGA kernel control module which is composed of a sending end and a receiving end; the sending end comprises a first storage module for receiving and caching data of the application layer, a sending end controller for synchronously and cyclically accomplishing the framing sending of data according to the application layer, and an encoding module for encoding data and sending the encoded data to the physical layer. The receiving end comprises a decoding module, a receiving end controller and a second storage module, wherein the decoding module is used for receiving data from the physical layer and decoding the data; the receiving end controller is used for accomplishing the de-framing reception of data, takes a clock recovered from a 10-bit serial data stream received from the physical layer as a receiving end work clock, and adjusts the phase of the receiving end work clock in a synchronous character center aligning way so as to ensure the synchronous real-time transmission of sending end data and receiving end data; and the second storage module is used for receiving and caching data and sending the data to the application layer. The device can meet the requirement of an optical fiber high-speed communication system on high-speed real-time data transmission.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a device for realizing optical fiber high-speed real-time communication based on FPGA. Background technique [0002] As an emerging technology, optical fiber communication technology has become one of the main pillars of modern communication. It has the advantages of large communication capacity, long transmission distance, fast transmission speed, small signal interference, and good confidentiality performance. It is widely used in power network communication, computer network communication, electronic device communication and other related information communication fields. [0003] For some devices that have high requirements for communication speed and real-time performance, for example, the ultra-precise synchronous motion control device for the scanning table of a lithography machine involves nanoscale synchronous control of more than 40 motion axes and hundreds of se...

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