面向MicroBlaze软核的单粒子翻转故障注入仿真评估方法

Single Event Upset Fault Injection Simulation and Evaluation Method for MicroBlaze Soft Core

摘要:

针对空间辐射环境下 MicroBlaze 软核易发生单粒子翻转、故障评估精度不足的问题，对 MicroBlaze 软核单粒子翻转故障注入仿真评估方法开展研究。采用编译时静态注入与运行时动态注入相结合的双模式故障注入机制，能够在比特级别精确模拟单粒子翻转故障，搭建仿真环境并构建故障影响评估体系，完成软核运行状态实时监测、故障传播路径分析与功能失效评估。该技术无需专用硬件平台，故障定位简单高效，降低测试成本与周期。相关技术可支撑 MicroBlaze 软核在航天器控制系统、卫星载荷数据处理场景的可靠应用，提升软核抗辐射加固验证的精准度与效率。

Abstract:

Given that MicroBlaze soft core are susceptible to single event upsets and suffer from low accuracy of fault evaluation in space radiation environments, research is conducted on the fault injection simulation and evaluation method for single event upsets of MicroBlaze soft core. A dual-mode fault injection mechanism integrating compile-time static injection and runtime dynamic injection is adopted to accurately simulate single event upset faults at the bit level. A simulation environment and a fault impact evaluation system are established to realize real-time monitoring of the soft-core operating status, analysis of fault propagation paths and evaluation of functional failures. This technology requires no dedicated hardware platform, enables simple and efficient fault location, and cuts down test costs and time. The relevant technologies can guarantee the reliable operation of MicroBlaze soft core in spacecraft control systems and satellite payload data processing, and improve the accuracy and efficiency of radiation hardening verification for soft core.