基于FPGA的车载芯片互操作性测试系统设计OA

With the rapid development of intelligent connected vehicles,Automotive Ethernet,with its advantages of high bandwidth and low latency,has gradually has emerged as a backbone network technology for intelligent connected vehicles.However,its physical layer chips face challenges in practical applications,such as difficult verification of protocol compatibility,unrealistic simulation of the complex channel environment of vehicles,and cumbersome and inefficient testing processes.To address these issues,we present an automated IOP test system based on FPGA architecture.This system takes FPGA as the core at the hardware level,integrates link partner and test case functions,communicates with the chip under test through the MDI/MDIO interface,and simulates cable faults and electromagnetic inter-ference scenarios during vehicle operation with the help of signal conversion boards and Gaussian white noise modules.On the software side,a Python-based host computer with a graphical interface enables efficient test management,parameter configuration,and real-time monitoring compliant with IEEE 802.3bw/bp and OPEN Alliance standards,supporting fully automated execution and report generation.Experimental results demonstrate a 100%pass rate in single tests and an average pass rate of 98.3%(min 97.5%)throughout 1 000 con-secutive stress tests,confirming high system reliability and testing efficiency.This system provides a precise,standardized,and compre-hensive IOP verification solution for domestic automotive PHY chips,significantly enhancing test reliability and industry applicability.