基于MCU的嵌入式在线升级系统的设计与实现  

Design and Realization of Embedded Online-upgrade System Based on MCU

作　　者：方冲[1] 任海兰[1] 王成丽[1] 

机构地区：[1]武汉邮电科学研究院研究生院光纤通信技术和网络国家重点实验室,湖北武汉430074

出　　处：《电视技术》2012年第5期22-25,共4页Video Engineering

基　　金：国家863计划项目(2007AA01Z229)

摘　　要：在基于MCU的嵌入式应用中,应用程序一般是通过仿真器烧写到片内存储器中的,该方式的缺点是应用程序的更新和升级必须依赖仿真器,而且程序一旦更新不成功,会破坏原有的程序。为了解决此问题,在Xmodem通信协议的基础上,设计了一种基于MCU的嵌入式在线升级系统,并给出了该系统的详细设计流程。In the embedded application system based on MCU, the application program is commonly written to internal memory by emulator, in which the update and upgrade of the application program must rely on emulator, and once there is a failure of program update, the old program will be de- stroyed. To resolve the problem mentioned above, on the basis of Xmodem protocol, a online-upgrade system based on MCU is designed, and the design process of this system is discussed in detail in this paper.

关 键 词：MCU 在线升级 BOOTLOADER XMODEM协议 软件架构 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]