基于Uboot的嵌入式系统远程更新设计

Embedded System Remote Update Design Based on Uboot

提出了一种基于Uboot的嵌入式系统远程更新设计,主要由三星S5PV210微处理器、DM9000网卡芯片、NAND Flash芯片以及SDRAM随机存储芯片组成,结合MTD分区技术和tftp下载命令,通过对系统内核和Uboot的修改,添加自定义启动命令,从而实现Flash分区设计和远程映像文件自动更新.

This paper presents a Uboot-based embedded system remote update design. It is mainly composed of Samsung S5 pv210 microprocessor,DM9000 network card chip,NAND Flash chip and SDRAM random memory chip. Through the combination of MTD partitioning technology and tftp download command,the modification of the system kernel and Uboot and the addition of custom start command,the Flash partition design and the automatic update of remote image files are achieved.