面向空间应用的嵌入式系统软件重构技术  

Software Reconstruction Technology Based on Embedded System For Space Applications

作　　者：王婷[1] 高玉娥[1] 董文博[1] 

机构地区：[1]中国科学院空间应用工程与技术中心,中国科学院太空应用重点实验室,北京100094

出　　处：《测控技术》2017年第2期111-114,119,共5页Measurement & Control Technology

基　　金：国家重大科技专项(Y3140921PN,Y5140631QN)

摘　　要：针对空间应用软件系统高可靠、可扩展的需求,提出了一种在TMS570上的软件重构技术和实现方法。采用在应用编程(IAP,in-application programming)的原理,深入研究了TMS570嵌入式系统重构的技术原理和关键技术;采用"APP1(带BootLoader)+APP2"的架构,将IAP功能耦合在主程序中,可通过地面数据注入的方式更新空间应用软件,同时还具备局部代码更新功能。注入程序经过验证,可以在4.4s内上传100KB数据量的程序代码。该方案为空间应用软件的开放性设计、可靠性设计提供了依据。To meet the requirements of high reliable and high flexibility of the space application software system,a software reconstruction and implementation based on TMS570 is proposed.Based on the principle of inapplication programming（IAP）,the technical principles and key technologies of TMS570 embedded system reconstruction are deeply studied.The ＂APP1（with BootLoader） ＋ APP2＂ architecture makes the IAP functional coupled in the main program,so the update code or some sections can be injected into the space software by the way of updating software applications from ground.Injection program validates that this method can upload100 kB program code within 4.4 s.This scheme provides reference design of openness and reliability of the space application software.

关 键 词：软件重构 IAP 空间应用 TMS570 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]