【作者】 张春波；

【导师】 胡宝霞；

【作者基本信息】 哈尔滨理工大学 ， 计算机应用技术， 2007， 硕士

【摘要】 随着电子技术的快速发展,特别是超大规模集成电路的产生而出现的微型机,使现代科学研究得到了质的飞跃,而嵌入式微控制器的出现则给现代工业控制领域带来了一场新的革命。嵌入式系统具有体积小、成本低、功耗小、维护容易等优点非常适合铁路道口检测记录装置的开发。本文以嵌入式铁路道口检测记录装置为研究目标,实现了基于ARM嵌入式处理器的道口检测记录装置硬件系统,并在此基础上开发了检测记录装置。详细研究了当前嵌入式系统硬件和嵌入式操作系统的发展,提出了嵌入式铁路道口检测记录装置各个部分的实现方案,包括ARM嵌入式处理器的选型、嵌入式操作系统的选择。深入探讨了ARM嵌入式处理器的特点、应用及体系结构。在S3C44B0X微处理器平台的基础之上,设计开发了S3C44B0X和其它关键部分的接口电路,并开发实现了平台的两大重要模块Flash和SDRAM。研究了嵌入式操作系统uClinux的独特的可配置性的功能特点,开发了Bootloader引导程序,及在特定应用系统设计中的操作系统移植、驱动程序设计、设计实现了上层应用程序。更多还原

【Abstract】 With the rapid development of the electronic techniques and the coming of the Micro-controller based upon the technology of VLSI (Very Large Scale Integration), the modern scientific research is brought into a new level. However, the coming of the embedded Micro-controller brings on a new revolution in the modern industrial control. Embedded system is suitable to develop railway information extraction and record device for it has many merits like small size, low cost, low consumption and convenience to maintain.Taking embedded system railway information extraction and record device as the research object, the paper intends to achieve the hardware system of information extraction and record device which is based on ARM (Advanced RISC Machines) embedded processor and to develop information extraction and record device on this basis.I studied in detail the current development of embedded system hardware and embedded operation system, and makes proposal to implement all parts of the embedded system including the selection of ARM embedded processor model and embedded operation system.The paper discussed in length the characteristic, application and structure of ARM embedded processor. In this part, introduced Micro-controller and the key interface circuits between CPU and other key parts are discussed. Besides, i realizd two important module, what is Flash and SDRAM.Based on the general systematic hardwares, the paper expounds the unique and configurable functions of the uClinux-an operation system. The conception and method to port the uClinux system and program the drivers and design the upper applications is expatiated.更多还原