没有合适的资源?快使用搜索试试~ 我知道了~
基于at89c51单片机的数字式低频信号发生器设计本科论文.doc
0 下载量 82 浏览量
2023-07-02
17:01:46
上传
评论
收藏 1.1MB DOC 举报
温馨提示
试读
44页
基于at89c51单片机的数字式低频信号发生器设计本科论文.doc
资源推荐
资源详情
资源评论
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
摘要...........................................................................................................II
Abstract...................................................................................................II
目录 .........................................................................................................IV
前言............................................................................................................1
1 波形发生器概述....................................................................................2
1.1 波形发生器的发展状况 .............................................................2
1.2 国内外波形发生器产品比较 .....................................................5
2 方案论证与比较....................................................................................6
2.1 方案一 ........................................................................................6
2.2 方案二 ........................................................................................7
2.3 方案三 ........................................................................................8
3 硬件原理..............................................................................................11
3.1 MCS-51 单片机的内部结构 .....................................................12
3.1.1 内部结构概述....................................................................12
3.1.2 CPU 结构.............................................................................13
3.1.3 存储器和特殊功能寄存器................................................14
3.2 P0-P3 口结构 ...........................................................................15
3.3 时钟电路和复位电路 ..............................................................17
3.3.1 时钟电路.............................................................................17
3.3.2 单片机的复位状态.............................................................18
3.4 DAC0832 的引脚及功能 ...........................................................19
4 软件原理..............................................................................................22
4.1 主流程图 ..................................................................................22
4.2 锯齿波仿真图 ..........................................................................25
4.3 三角波仿真图 ..........................................................................27
4.4 方波仿真图 ..............................................................................30
4.5 正弦波仿真图 ..........................................................................31
总结..........................................................................................................34
致谢..........................................................................................................36
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
参考文献..................................................................................................37
摘要
本系统是基于 AT89C51 单片机的数字式低频信号发生器。采用 AT
89C51 单 片 机 作 为 控 制 核 心 , 外 围 采 用 数 字 / 模 拟 转 换 电 路
(DAC0832)、运放电路(LM324)、按键和 8 位数码管等。通过按键
控制可产生方波、三角波、正弦波等,同时用数码管指示其对应的频
率。其设计简单、性能优好,可用于多种需要低频信号的场所,具有
一定的实用性。
各种各样的信号是通信领域的重要组成部分,其中正弦波、三角
波和方波等是较为常见的信号。在科学研究及教学实验中常常需要这
几种信号的发生装置。为了实验、研究方便,研制一种灵活适用、功
能齐全、使用方便的信号源是十分必要的。
本文介绍的是利用 AT89C51 单片机和数模转换器件 DAC0832 产生
所需不同信号的低频信号源,其信号幅度和频率都是可以按要求控制
的。文中简要介绍了 DAC0832 数模转换器的结构原理和使用方法,AT8
9C51 的基础理论,以及与设计电路有关的各种芯片。文中着重介绍了
如何利用单片机控制 D/A 转换器产生上述信号的硬件电路和软件编
程。信号频率幅度也按要求可调。
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
本次关于产生不同低频信号的信号源的设计方案,不仅在理论和
实践上都能满足实验的要求,而且具有很强的可行性。该信号源的特
点是:体积小、价格低廉、性能稳定、实现方便、功能齐全。
关键词 :AT89C51 DAC0832 LM324 8 位数码管显示
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
Abstract
Waveform The system is a digital signal generator based
on single chip computer.At89c51 is used as a control
microcontroller core.The system is composed by digital/analog
comversion(DAC0832), imply circuit,button and nixie tube.It
can generate the square, triangle and sine wave,with nixie
tube.The system can be used for a signal soure in the low-
frequency signal soure.It is very practical.
Various signals are an important part of correspondent
area. In this area, sine wave, triangle wave and square wave
are common signals. In science research and teaching
experiment, we often need the occurrence equipment of these
signals. In order to make the experiment and research easier,
to develop a suitable, full functional and easily used
signals source is essential.
This paper introduces the low frequency sources of
different signals that are produced by AT89C51 SCM and
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccc
cccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec
DAC0832. Its signal range and frequency can be controlled by
requirement. This paper briefly introduces the structure
principle and usage of DAC0832, the basic theory of AT89C51
and various chips which relevant to design circuit. this
paper emphasized how to use SCM to control the hardware
circuit and software program of the signals above which
produced by DAC0832. The signal frequency range also can be
adjusted by requirement.
This signal source design plan concerns on producing
different low frequency signals, not only meet the request of
experiment in theory and in practice, but also have strong
feasibility. The trait of this signal source is: small volume,
low price, stable function, easily achievable, and full
function.
Keywords:AT89C51, DA0832, LM324, 8 nixie tube display
剩余43页未读,继续阅读
资源评论
Mmnnnbb123
- 粉丝: 701
- 资源: 8万+
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
最新资源
- STUDENT.ipch
- 砖混结构住宅楼占地面积11.4米b204建筑结构.dwg
- 单家独院式,建筑占地面积218.79平米b205建筑图.dwg
- 平谷别墅cad图纸建筑图纸设计图纸.dwg
- 2层独栋别墅,建筑占地面积100.4平方米b207建筑结构.dwg
- 基于树莓派的互动性宠物机器人项目源码+文档说明(毕业设计).zip
- 270689834654380WonderPi-V5.4.2.apk
- 运算器设计(HUST)1-11代码
- C语言开发基于stm32的智能风扇系统源码+文档说明(高分项目).zip
- C语言开发基于stm32的智能风扇系统源码(高分项目)根据温度自动改变PWM值控制风扇的风速
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功