通用串行总线多功能故障注入设计  

Design of Multifunctional Fault Injection for Universal Serial Bus

作　　者：孔祥雷 冯凯强[2] KONG Xianglei;FENG Kaiqiang(Vision Microsystems(Shanghai)Co.,Ltd.,Shanghai 200000,China;Key Laboratory of Electronic Testing Technology for National Defense Science and Technology,North University of China,Taiyuan 030051,China)

机构地区：[1]上海创景信息科技股份有限公司,上海200000 [2]中北大学电子测试技术国防科技重点实验室,太原030051

出　　处：《计算机测量与控制》2025年第4期67-74,共8页Computer Measurement &Control

摘　　要：为验证航空航天系统中通信总线在出现故障后,整个系统的稳定性、可靠性及容错性,设计了一套通用总线故障注入系统,系统将实现对各类通用串行总线的故障注入,通过故障注入设备能够实现总线信号在物理层、电气层及协议层3个层面上的故障注入功能;通过软硬件结合提出了一种通用串行总线故障注入方法,以FPGA为基础,利用ADC对信号进行采集,利用IP核实现通用串行总线的协议解析,利用DAC信号输出实现电气层故障调节,利用电阻矩阵网络实现信号在物理层的故障注入;同时通过上位机软件对故障注入设备进行系统控制及故障模拟;经实验测试故障注入设备实现了通用串行总线的物理层、电气层及协议层的故障注入功能。To verify the stability,reliability,and fault tolerance of the aerospace system after a communication bus failure occurs,a universal bus fault injection system is designed.The system achieves fault injection for various universal serial buses.The fault injection equipment realizes fault injections for bus signals in the physical layer,electrical layer,and protocol layer;A universal serial bus fault injection method is proposed by combining the software and hardware of the system.Based on FPGA,using ADC to collect signals,using IP core to implement protocol analysis of universal serial bus,using DAC signal output to adjust faults in the electrical layer,and using resistance matrix network to inject signal faults in the physical layer;Simultaneously,the system control and fault simulation of fault injection equipment are carried out through the upper computer software;Through experimental testing,this fault injection device achieves fault injection of universal serial bus in the physical layer,electrical layer,and protocol layer.

关 键 词：通用总线 IP核 故障注入 电气层 协议层 

分 类 号：TP306.3[自动化与计算机技术—计算机系统结构]