【摘要】 针对嵌入式远程升级面临的boot功能以及存储器的限制,重点分析了ARM7工控设备在远程升级过程中面临的升级失败问题,提出一种基于分散加载技术的"双系统"存储体系结构,并详细阐述了"双系统"存储结构解决升级失败问题的原理。最后通过一组实验数据证明了其保证远程升级安全的效果。更多还原

【Abstract】 According to the limitations of boot function and memory of embedded remote upgrade,the failure of remote upgrade procedure for ARM7 industrial control devices was analyzed.A storage structure named "Double-System" based on scatter loading was proposed,and its theory was described in detail.A set of experimental results verify its effect to ensure the safety of remote upgrade.更多还原