基于AUTOSAR标准的软件内存保护机制实现  

Implementation of Software Memory Protection Mechanism Based on AUTOSAR Standard

作　　者：葛纹材 朱元[1] 王恩东 杜展志 Ge Wencai;Zhu Yuan;Wang Endong;Du Zhanzhi(CDHK,Tongji University,Shanghai 200092,China;China FAW Group Co.,Ltd.,Changchun,Jilin 130011,China)

机构地区：[1]同济大学中德学院,上海201804 [2]中国第一汽车集团有限公司,吉林长春130011

出　　处：《信息通信》2020年第11期5-7,共3页Information & Communications

摘　　要：文章概述了汽车电子功能安全标准ISO26262中关于内存保护的相关概念,并结合AUTOSAR标准的多核操作系统以及英飞凌公司的AURIX单片机详细阐述了内存保护功能的实现对软件和硬件的要求,最后在TC275单片机上实现了内存保护功能,并设计了详细的测试方案验证了不同安全等级任务对内存的访问权限的差异,表明了内存保护功能可以保障功能安全性任务的正常运行。The paper outlines the related concepts of memory protection in the automotive electronic functional safety standard IS026262,and combines the AUTOSAR standard multi-core operating system and Infineon’s AURIX microcontroller to elaborate on the software and hardware requirements for the realization of the memory protection function.The memory protection function is implemented on the TC275 single-chip microcomputer,and a detailed test plan is designed to verify the difference in the access rights of different sec urity tasks to the memory,which shows that the memory protection function can guarantee the normal operation of functional safety tasks.

关 键 词：AUTOSAR 功能安全 内存保护 多核操作系统 

分 类 号：U463.6[机械工程—车辆工程]