文档介绍：嵌入式系统的设计分析
摘要
随着信息时代的来临计算机和网络已经渗透到日常生活的每一个
角落各种各样的新型嵌入式系统设备在应用数量上已经远远超过通用
计算机任何一个普通人可能拥有从大到小的各种含有嵌入式技术的电
子产品然而目前嵌入式系统设计却还没有一个通用的方法可以遵循
本文作者依据研究生期间 JingWei 板和 Tibet 板的设计经验从系
统结构硬件软件设计操作系统移植等方面对嵌入式系统的设计方法
作了论述和归纳文中涉及的 JingWei板基于业界使用广泛的 StrongARM
微处理器并且作为 2002 年全国大学生嵌入式系统专题竞赛的指定平
台成功地开发了无线通信多媒体信号处理等丰富的应用 Tibet 板是
基于当前速度最快的外设丰富的 XScale 微处理器从结构复杂性和
应用广泛性上都处于嵌入式系统领域的前沿水平
文章选取了多个有代表性的实例硬软件设计中触摸屏的例子包
括了两套实现方案硬件误差分析及软硬件优化措施 USB 控制器的设
计包括方案比较芯片选型和测试程序实现外部中断处理的例子讨论
了 CPLD 实现逻辑存在问题和解决方式软件移植中 EFI 系统移植
主要论述了工具链的移植 Windows CE 的移植侧重于驱动的结构介绍
和移植中的分层概念根据这些移植经验作者针对可移植性对系统软
件编写提出了要求论文的最后对嵌入式系统的研究发展作了展望
关键词嵌入式系统设计方法软件移植外围设备硬软件设计
ABSTRACT
DESIGN CONSIDERATIONS
FOR EMBEDDED SYSTEMS
ABSTRACT
Embedded systems are everywhere in the era of information
technology; they have rated into every corner of daily life. The
applications of various kinds of novel embedded devices have even been
more prevailing than the general-puters, and the opportunity
is now open to everyone to possess electronic products of myriad shape
infused with the embedded technology. However, there is still not a
general methodology to follow in the design of embedded systems.
Based on the experience of JingWei and Tibet board, the author
discusses the design methods of embedded system from the aspects of
system architecture, hardware and software design, and operating system
porting. The JingWei board, based on the most popular StrongARM
processor, produced fruitful applications on munications,
multimedia, and signal processing as the develop platform for 2002
national undergraduate electronic design contest. The Tibet board using
XScale microprocessor reflects the state-of-the-art technology of the
embedded system.
Typical examples are given in this paper to demonstrate the concepts
and methods. In hardware and software design, the example on touch
screen design covers two different themes, the hardware error analysis,
and hardware and software optimization. The USB con