嵌入式设备远程在线升级技术

1、第”卷第12期Vol.36 No. 12计算机工程2010年6月Computer EngineeringJune 2010开发研究与设计技术文章细号：1000 3428(2010)12 0262 03文献标识码：A中图分类号：N945201804)WebWebRemote Online Update Technology for Embedded DeviceZHAO Jiong, JIA Pei-yuan, LI Zhong-sham LIN VVang-chcng(School of Mechanical Engineenng. Tongji University. Shanghai 20

2、1804)Abstract la order to reduce the cocts of embedded system update and maintenance effectively, paper presents a method of using Wbb interface to achieve automatic update for embedded system through remote communication according to store framework and update principle of embedded device. which in

3、cludes the technique of packing kernel image and root file system before update, the method of unpacking and writing it into Flash after receiving packet, and the way of remote communication between client and embedded device.Key words embedded device; online update; remote communication; Web server

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6、)?sizeof(buf):mtdlen;263flashimagepackimage3firm.current bin)HTTP 80HTTPCGICGIflashimageWeb* # flacliimige write firmwaie.binWebWeb【6WebWebCGICGIWebCGIWebWebCGIWeb44WebCGIFlashflasluniageWebfirm_current.bin var.tmpCGIMTDHeNCA网络探测仪许理控I舸twa. t 讣 IM.IT7Wlu s r an5 Web1 Jim Zeus linuxMTDZJ. 2009-02-11. dzzcom doxvn soft46808.htm.299ARMBootLoaderJ.,2007,25(7)