简易计算器毕业设计

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1、 20122012 届毕业设计说明书届毕业设计说明书 简易计算器设计 系 、 部：电气与信息工程系 学生姓名： 指导教师：xx 职称 老师 专 业：电子信息工程技术 班 级： 完成时间：2012/5/13 摘 要 单片机由于其微小的体积和极低的成本，广泛的应用于家用电器、工业控制 等领域中。在工业生产中。单片机微型计算机是微型计算机的一个重要分支，也 是颇具生命力的机种。单片机微型计算机简称单片机，特别适用于控制领域，故 又称为微控制器。 近年来，单片机以其体积小、价格廉、面向控制等独特优点，在各种工业控 制、仪器仪表、设备、产品的自动化、智能化方面获得了广泛的应用。与此同时， 单片机应用系统

2、的可靠性成为人们越来越关注的重要课题。 影响可靠性的因素是 多方面的，如构成系统的元器件本身的可靠性、系统本身各部分之间的相互耦合 因素等。其中系统的抗干扰性能是系统可靠性的重要指标。计算器在人们的日常 中是比较的常见的电子产品之一。在本次的毕业设计课题中，我以MCS-51 系 列单片微型计算机及其应用课程中所学知识为基础，设计了简易计算器。本系 统以 MCS-51 系列中的 8051 单片机为核心，能够实现两位数的四则运算。该系统 通过检测矩阵键盘扫描， 判断是否按键， 经数据转换把数值送入数码管动态显示。 关键词 ：计算器，51 单片机，液晶显示屏，独立键盘 ABSTRACT Becaus

3、e of its small volume of single chip microcomputer and very low cost, widely used in home appliances, industry control, etc. In industrial production. Single chip microcomputers are microcomputer as an important branch, is also a vitality of the model. Single chip microcomputer hereinafter referred

4、to as the single chip microcomputer, is particularly applicable to control field, so it is also called the micro controller. In recent years, microcontroller with its small size, inexpensive price, for the control and other unique advantages in a variety of industrial control, instrumentation, equip

5、ment, automation products, the intelligentaspects of a wide range of applications. At the same time, the reliability of the system ofmicrocomputer application to become an important issue of growing concern. Affect thereliability of many factors, such as to constitute the components of the systems r

6、eliability,the system itself is all part of the coupling between factors. Anti-interference performanceof the system which is an important indicator of system reliability. One of the calculator inpeoples daily in common electronic products. Calculator students are familiar with each and every one of us, from junior high to high school and then to the University. In the graduation design topic, I with “MCS-51 series single chip computer and its application“