基于ARM的数据采集系统的硬件设计

电气自动化论文编号:ZD1053    论文字数:17526,页数:37

目录
摘  要 I
Abstract II
1  绪论 1
1.1 数据采集的意义和任务 1
1.2 数据采集的现状 1
1.2.1 国外数据采集器的现况 1
1.2.2 国内数据采集器的现况 2
1.3 课题的设计目标 2
2  总体方案设计 3
2.1 系统方案对比分析 3
2.2 系统硬件结构组成 3
3  核心处理器模块 5
3.1 ARM核简介 5
3.2 S3C2440A体系结构 6
3.3 ARM核心系统设计 8
3.3.1 电源电路 8
3.3.2 存储系统及其扩展 10
3.3.3 调试接口 12
4  数据转换模块 13
4.1 数据转换芯片介绍 13
4.1.1 TLV1543引脚介绍 13
4.1.2 转换器和模拟输入端工作原理 15
4.2  模块实现 16
5  输入输出模块 17
5.1  网络模块 17
5.2  USB模块 18
5.３ 串口模块 19
5.４ 人机接口模块 20
6  系统PCB设计 22
6.1  高速PCB设计 22
6.2  PCB设计的一般原则 25
7  总  结 29
致 谢 30
参考文献 31
附录 32

摘  要

 在测试控制系统中，数据采集作为一个主要的组成部分，为测试管理与控制实时提供数据，为实验人员进行产品性能分析提供重要依据。为了缩短数据采集系统开发周期，避免重复编码，数据采集系统的研究与设计有着重要意义。本文提出并研究设计了一种基于ARM处理器的数据采集应用系统，并完成了系统的硬件设计。该系统充分利用了ARM处理器高性能、低功耗、低成本的优点，扩展了平台的通用接口，实现了一个多功能的系统。
   本文绪论部分首先介绍了数据采集研究的背景，并对国内外数据采集器的现状进行了概括，在此基础上提出了本文的设计目标。第二章概述了方案的总体构思以及各个方案的优劣比较，给出了最后选用方案。第三章具体介绍核心处理器S3C2440A的功能和相关模块的实现。第四章重点讨论数据转换原理及其具体电路设计。第五章描述了USB模块、串口模块、网络模块、液晶接口等各个扩展功能模块的设计。第六章着重阐述了高速PCB设计理论和PCB设计规则。最后，总结了论文工作，展望未来。
关键词： 数据采集；硬件设计；ARM；S3C2440A

Abstract

 In the test control system, data acquisition as a main portion provides data for test management and controlment timely, and supplies vital fact for experiment personnel doing product performance analysis. In order to shorten the development period of data acquisition system and avoid recoding, the research and design of data acquisition system has great significance. In this paper, we research and design of the ARM processor-based data acquisition applications, and complete system hardware design. The system makes full use of high-performance ARM processor, low power, low-cost advantages, and extends the common interface platform, and achieves a multi-functional system.
 The introduction of the paper describes the background to the study data collection and data acquisition system at home and abroad to carry out a summary of the status quo, then carry out the design goals of this article. Chapter II provides an overview of the overall idea of the program, as well as the advantages and disadvantages of various options compared to the final selection of the program are given. Chapter III introduces the details of the function that the core processor S3C2440A and the realization of the relevant module. Chapter IV focuses on the principles of data transformation and its circuit design. Chapter V describes the USB module, serial module, network module, LCD interface and other modules expand the functionality of the design. Chapter VI focuses on the theory of high-speed PCB design and PCB design rules. Finally, the paper and the work are summarized. The prospect of further researeh work is also proposed.
Keywords: Data Acquisition; Hardware design; ARM; S3C2440A