文档介绍：郑州大学西亚斯国际学院
本科毕业论文
题目单片机暗室曝光系统
指导教师尤连荣职称教授
学生姓名 xx 学号 xx
专业 xx 班级 xx
院(系) 电子工程系
完成时间 xx
单片机暗室曝光系统
摘要
随着社会、科技的发展,人类不断研究、创新,为了更方便的工作,暗室曝光系统产生了。它具有应用方便、电路简洁等诸多优点,符合电子仪器系统的发展趋势,具有广阔的市场前景。
该系统主要采用AT89S52单片机作为主控核心,AT89S52是一个低电压,高性能CMOS8位单片机带有8K字节的可反复擦写的程序存储器(PENROM)。和256字节的存取数据存储器(RAM),这种器件采用ATMEL公司的高密度、不容易丢失存储技术生产,并且能够与MCS-51系列的单片机兼容。片内含有8位中央处理器和闪烁存储单元,有较强的功能的AT89S52单片机能够被应用到控制领域中。
单片机暗室曝光系统的设计是为了起到对暗室进行应急光线补充补偿作用。本设计是软件与硬件相结合的一组设计,它通过时钟电路、显示电路、复位电路以及光源电路等模块的设计得以完成。本系统对光线补偿具有实时性,具有时间精确、成本低等优点。
关键词时钟电路;显示电路;复位电路;单片机AT89S52.
SCM DARKROOM EXPOSURE SYSTEM
ABSTRACT
Along with the development of society, science and technology, human continuous research, innovation, and to make it easier to work, darkroom exposure system produced. It has application convenient, simple circuit, and many other advantages, conform to the trend of the development of electronic instrument system, and has a broad market prospect.
This system mainly adopts core, as the master AT89S52 SCM AT89S52 is a low voltage, high performance CMOS8 bit micro-controller can be repeated with the CaXie 8K bytes of the program memory (PENROM). And 256 bytes of accessing data memory (RAM), this device adopts pany high-density, difficult to lose storage technology, and can produce with MCS - 51 series single-patible. Piece contains 8 bits CPU and blinking storage unit, has the strong function that can be applied to AT89S52 SCM control field.
SCM darkroom exposure system is designed to play to darkroom for emergency light supplement pensation. This design is bination of hardware and software design, it through a group show circuit, clocking circuit and reset circuit and the design of light circuit module, such pleted. This system to light, with time with real-pensation precise, low cost advantages.
KEY WORDS:CLOCK CIRCUIT; SHOW CIRCUIT;RESET CICUIT; AT89S52 SCM.
目录
摘要 I
ABSTRACT II
前言 1
1 设计要求与方案论证 2
引言 2
单片机介绍 2
功能要求 4
方案论证 4
技术可行性 4
单片机的选择 5
显示模块的