FlexRay bus data fault diagnosis based on Zynq

Abstract

CAN bus and LIN bus are widely used as communication bus in automobile industry.As a new type of automobile bus, FlexRay bus, with CAN bus and LIN bus do not have many advantages. FlexRay bus bandwidth is not limited by protocol mechanisms,and it use the synchronization-based access methods. And because of its unique dual-channel data transfer mode, which is especially suitable for the current automotive wire control system, it replaces the mechanical and hydraulic working mode of traditional automobile. And the FlexRay data transmission rate is fast, it can quickly transmit data to the car’s electronic control unit. Zynq as an extensible platform combining ARM and FPGA,satisfying the programmability of the software,it also meets the programmability of hardware. Zynq chip functions can be divided into two working parts, A PS,another is PL. PS is the ARM part, mainly responsible for data storage and display module control and other functions; PL is the FPGA part, the main functions are data acquisition processing and time unification. Using based on Zynq data diagnosis FlexRay vehicle bus, can make data transmission more reliable and efficient, It can also effectively reduce the power consumption of the whole system.