Research And Design Of Embeded Web System Based On VxWorks

With the development of ingormation and network technology, the embedded system is applied widely in all kinds if fileds.This thesis presents the design and implementation of a Web Server based on embedded operating system VxWorks and Risc chip S3C4510B with ARM7TDMI core.Main works are explained in four parts respectively.Firstly, a hardware platform,in which the S3C4510B provided by SAMSUNG Corporation is used core chip is introduced. For the software development in next content. The application fileds and characteristic of ARM microprocessor are presented and memory space allocation of S3C4510B chip is described.Secondly, the Board Support Package (BSP) for desired system,supported by WRSBCARM7 which is provided by Wind River Corporation is designed and programmed,as one of the basic parts of application process,the CPU initialization code,hardware driver and user-application software etcare carried out. Besides the details of designed BSP,the method and procedure of the design is presented as well.Thirdly, TrueFFS file system in SST39VF160 Flash which is used is carried out. Thus, SST39VF160 Flash can used as disk by VxWorks operating system . Not only the constructure of TrueFFS is introduced,but also the modification of relevant files and the design of MTD driver is presented.Finally,after the analyse about HTTP protocol in depth ,the embedded Web principle is researched,we apply HTTP protocol to embedded Web Server system.,to display static web is successful achieved. This paper also shows us how to realize remote monitor and control about embedded system devices,and how to support form submission in Web Server. Through the web browser,not only the user,but also the developer is capable of accessing the system conveniently. Thus the developer can maintain the system, while the user can access the system anytime and anywhere.Realization of this embedded Web Server based on VxWorks shows us a way to achieve embedded internet technology,give us a good example about resources usage. It is an excellent method to remote monitior,remote control andremote diagnose systems,and it can be used in a lot of fields such as Information Appliance,Industrial Automation,Smart Instrument and Sensor Technique. So, it will have a wonderful applied perspective,and will also have good application and theory value.