FPGA-based FlexRay bus optical fiber communication module

Abstract

The invention discloses an FPGA-based FlexRay bus optical fiber communication module, which comprises an FPGA minimum system, a FlexRay bus communication unit and a CPCIe optical fiber communication unit, the FlexRay bus communication unit and the CPCIe optical fiber communication unit are connected with the FPGA minimum system, the FlexRay bus communication unit is connected with a FlexRay external bus, the CPCIe optical fiber communication unit is connected with a PCIe system bus, and the FlexRay bus communication unit executes a FlexRay communication protocol to realize data transmission between the optical fiber communication module and the FlexRay external bus; the optical fiber communication unit completes mutual conversion of optical signals and electric signals, so that the optical fiber communication module performs data exchange by using an optical fiber medium; and the FPGA minimum system is used for data exchange between the PCIe system bus and the FlexRay external bus. The communication module disclosed by the invention can be directly compatible with an original FlexRay bus structure; transmission of the FlexRay high-speed bus by using an optical fiber medium is realized; the transmission distance of the FlexRay high-speed bus is increased, and the application range of FlexRay bus application is widened.

Description

technical field [0001] The invention belongs to the technical field of network communication, and relates to an FPGA-based FlexRay bus optical fiber communication module, which uses an optical fiber medium to realize FlexRay high-speed bus data communication. Background technique [0002] Bus communication is widely used in various industrial control networks, mainly to solve communication problems between different electronic devices, especially in aerospace, automobile manufacturing, navigation, automatic control, process industry and other fields. At present, the external bus communication technology with long application time and mature technology includes CAN bus, 1553B bus, etc., which have the characteristics of high reliability, high certainty and high fault tolerance. However, with the continuous development of science and technology, the increasing data volume and higher and higher real-time communication requirements have gradually challenged the traditional exter...

AI Technical Summary

Problems solved by technology

[0004] However, relying on cables as the signal transmission medium greatly limits the transmission distance and application range of the FlexRay bus

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