FlexRay-CPCIe communication module based on FPGA

Abstract

The invention discloses a FlexRay-CPCIe (Compact Peripheral Component Interconnect Express) communication module based on an FPGA (Field Programmable Gate Array). The FPGA minimum system is used as aprocessing core of the communication module; an IP core and an integrated hard core in an FPGA chip are designed to achieve clock management and logic control on the communication module and completing data exchange between a PCIe system bus and a FlexRay high-speed external bus, and the CPCIe communication unit is used for implementing PCIe bus standards and implementing data exchange between a computer and the communication module; the FlexRay bus communication unit executes a FlexRay communication protocol to realize data transmission between the communication module and an external high-speed bus network; the CPCIe communication unit is connected with a CPCIe interface in a computer case through a PCIe system bus standard interface, and data transmission between the communication module and a computer is achieved. The FlexRay bus network is developed, simulated and tested, and the convenience of FlexRay bus application is improved.

Description

technical field [0001] The invention belongs to the technical field of network communication, and relates to an FPGA-based FlexRay-CPCIe communication module, which is used to realize data communication between a computer and a FlexRay high-speed external bus through a PCIe system bus. 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 chall...

AI Technical Summary

Problems solved by technology

[0005] However, the PCIe system bus and the FlexRay high-speed external bus are incompatible with each other, which restricts the role of the computer in the FlexRay bus communication network and also limits the application range of the FlexRay high-speed bus

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