嵌入式工控系统中linux平台研究设计与实现-微电子学与固体电子学专业论文.docxVIP

Design and Implementation Of Linux Platform For an Embedded Industrial Controller SystemAbstractWith the development of computer technology，the embedded system becomes one of the most popularπapplication fields at present and has great development prospects.Thehigh performan臼 microprocessor combines with the embedded operating system is thedevelopment trend of the embedded system.Linux operating system has advantage of free open som∞of software，e蹈y porting and stable kemel makes it become popular.This thesis focous on Linux platform design and implementation based on S3C241O for an embedded industrial controller system.This paper introduced the S3C241OX CPU and the system structure. Based on this，it mainly researched on the development of system software. Firstly the paper described how to establish the αoss compiling environment ， a白er that analyzed the working process of the embedded Bootlρader，and based on the analyses of the Linux kemel structure the paper discussed the methods of kemel porting and configuration. Then the paper presented the theory of Linux device drivers，and designed several key deviωdrivers，and gave the detail implement scheme. These driversinclude Serial port，LCD，Touchscreen ，and 12C bus driver which is used to ∞ntrolkeyboard. Finally，the paper analyzed the typical embedded GUI - Ot/Embedded ， introduced the methods of application development and summarized the methods of adding Otopia to the cramfs file systems. The features of the platform are logical，functional，user-friendly，convenient and extendabale ，it offers a dependable platform and an usefulapplication to develop others embedded systems.Key Words:Embedded System ，Linux ，S3C241OX，BootLoader，Ot/Embedded;t; n 页西北大学学位论文知识产权声明书本人完全了解西北大学关于收集、保存、使用学位论文的规定。 学校有权保留并向国家有关部门或机构送交论文的复印件和电子版。 本人允许论文被查阅和借阅。本人授权西北大学可以将本学位论文的 全部或部分内容编入有关数据库进行检索，可以采用影印、缩印或扫 描等复制手段保存和汇编本学位论文。同时授权中国科学技术信息研 究所等机构将本学位论文收录到《中国学位论文全文数据库》或其它 相关数据库。必威体育官网网址论文待解密后适用本声明。学位论文作者签名：—i虹指导教师签名：．上丑}力桶年二月7日夕嘲年占月夕日西北大学学位论文独创性声明本