Design method of optical traditional-communication bus coding based on fpga

Abstract

The invention relates to an FPGA-based optical traditional-communication bus coding design method, which is used to solve the technical problem of difficulty in interconnecting heterogeneous buses in the prior art. The technical solution is to cache the data of the specific bus through the buffer, and use the buffer as a communication node of the unified bus, perform CMI encoding on the channel in the unified bus to adapt to optical fiber transmission, and use the CCITT-5 standard for CRC check and depth Realize interleaving for 4 memories, thereby improving the fault tolerance of the channel, solving the technical problem of difficult interconnection between heterogeneous buses, and improving the reliability and confidentiality of communication between heterogeneous buses; the present invention encodes the bus data frame format, Realize the control of different nodes and the packet exchange of data, and then enhance the throughput of the system; in order to monitor the communication process and ensure that the upper computer processes and shares the bus data in real time, the present invention adopts the strategy of address comparison to realize the upper computer The monitoring of communication nodes of interest enhances the efficiency of the host computer.

Description

Design method of optical traditional-communication bus coding based on FPGA technical field The present invention relates to a kind of communication bus coding design method, particularly relate to the optical tradition-communication bus based on FPGA Line coding design method. Background technique The discrete, united, centralized and intelligent developments that bus technology has experienced have all brought more improvements in electronic equipment. new generation. It can be seen that the update of electronic equipment is motivated by the development of bus technology. Existing communication bus is of a great variety, and the field bus such as being used for on-the-spot process control, building communication, automotive electronics is arranged CAN bus, LonWorks bus, Profibus bus, Loytec bus, etc. RS232, RS485 for communication with host computer etc. ARINC429, ARINC629 bus, MIL-STD-1553B, MIL-STD-1773 bus for avionics systems, AFDX bus, etc., as well as ST...

AI Technical Summary

Problems solved by technology

In order to overcome the deficiency of interconnection difficulty between existing heterogeneous buses, the present invention provides a kind of optical transmission based on FPGA

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