基于ARM的模数转换器的毕业设计

学生毕业论文（设计）
题目
基于 ARM 的模数转换器的设计
姓名 系部 专业 指导教师
XX
学号 XX
XXXX 系
XXXXXXX 技术
XXXX
职称 XXXX（XXXX）
XXXX 年 1 月 XX 日 XXXXXXXXXXX 教务处制
1
目录
摘要 ............................................................... 3 关键词 ............................................................. 3 Abstract ........................................................... 3 Keywords ........................................................... 3 1 绪论 ............................................................. 4 1.1 技术背景 ....................................................... 4 1.2 选题意义 ....................................................... 4 2 A/D 转换器基本原理 ................................................ 4 2.1 A/D 转换器的基本原理 ............................................ 4 2.2 A/D 转换器的基本功能 ............................................ 5 2.3 A/D 转换模块 .................................................... 5 2.3.1 A/D 转换模块概述 ............................................. 5 2.3.2 A/D 转换的技术特性 ............................................ 5 2.3.3 A/D 转换的功能寄存器框图 ...................................... 5 2.3.4 A/D 转换初始化 ................................................ 6 2.3.5 A/D 转换的操作 ................................................ 6 3 A/D 转换器的设计 .................................................. 7 3.1 A/D 转换器的工作原理 ............................................ 7 3.2 A/D 转换电路 .................................................... 8 3.3 A/D 转换器的原理图 .............................................. 8 4 A/D 转换仿真结果 .................................................. 9 4.1 仿真设备 ....................................................... 9 4.2 仿真设备简介 ................................................... 9 4.2.1 ADS1.2 仿真软件 ............................................... 9 4.2.2 MagicARM2200 实验箱 .......................................... 9 4.3 仿真步骤 ...................................................... 12 4.4 ADS1.2 软件仿真 ................................................ 12 4.4.1 仿真软件 .................................................... 12 4.4.2 仿真硬件 .................................................... 14 4.5 仿真结果 ...................................................... 15 结束语 ............................................................ 16 致谢 .............................................................. 16 参考文献 .......................................................... 16 附录 参考源程序 .......................................ARM 的模数转换器的设计
XXXXXXX 技术专业学生 XX 指导老师 XXXX
摘要：随着数字技术，特别是信息技术的飞速发展及普及，在现代控制通信及检测等领域，为了提 高系统的性能指标，对信号的处理广泛采用了数字计算机技术。由于系统的实际对象往往都是一些 模拟量（如温度、压力、位移、图像等），要使计算机或数字仪表能识别，处理这些信号，必须首先 将这些模拟信号转换成数字信号；而经计算机分析，处理后输出的数字量也往往需要将其转换为相 应模拟信号才能执行机构所接受。这样就需要一种能在模拟信号与数字信号之间起桥梁作用的电路 ——模数转换器。A/D 转换器已成为信息系统中不可缺少的接口电路。为确保系统处理结果的精度， A/D 转换器必须具有足够的转换精度，如果要实现快速变化信号的实时控制与检测，A/D 转换器还要 求具有较高的转换速度。转换精度与转换速度是衡量 A/D 的重要指标。随着集成技术的发展，现已 研制和生产出许多单片和混合集成型的 A/D 转换器，它们具有愈来愈先进的技术指标。本文主要介 绍了在 ARM 系统下，通过对 A/D 转换模块的设计。学习 A/D 接口原理及硬件电路，了解 ARM 的 A/D 相关寄存器，利用外部模拟信号编程，实现 ARM 系统的 A/D 功能，掌握带有 A/D 的 ARM 编程实现 A/D 功能的主要方法。 关键词：模数转换器；ADC 模块；系统设计；仿真
ARM-based analog-to-digital converter design
Student majoring in Computer-controlled technology professional XXX Ting Tutor XXX
Abstract: The advent of digital technology, especially the rapid development of the information technology and the popularity of the field of modern control communication and detection, in order to improve system performance, signal processing widespread adoption of digital computer technology. Since the actual object of the system are often some analog quantity (such as temperature, pressure, displacement, image, etc.), make the computer or digital instrument can recognize, process these signals, you must first convert these analog signals into digital signals; while via computer analysis, the digital output after the processing is also often need to be converted to the corresponding analog signals in order to perform bodies accepted. Need a between the analog and digital signals from the bridge circuit - ADC .A / D converter the interface circuit has become indispensable in the information system. To ensure the accuracy of the system processing the results of the A / D converter must have a sufficient accuracy of the conversion, A / D converter is also required to have a higher conversion speed; if you want to achieve the real-time control and detection of rapidly changing signal. Conversion accuracy and conversion speed is an important indicator to measure the A / D. With the development of integration technology, has been developed and produced many monolithic and hybrid integration of A / D converter, they have more and more state-of-the-art technical indicators. This paper describes the ARM system, through the design of the A / D converter module. Learning A / D interface principle and the hardware circuit, ARM's A / D register, the use of external analog signals programmed to achieve a the ARM system of A / D function, master ARM programming with an A / D A / D function method. Keywords: analog-to-digital converter; ADC module; system design;simulation