基于 MCS-51 单片机的简易计算器的设计与实现【摘要】当今社会，随着人们物质生活的不断提高，电子产品已经走进了家家户户，无论是生活或学习，还是娱乐和消遣几乎样样都离不开电子产品，大型复杂的计算能力是人脑所不能胜任的，而且比较容易出错。计算器作为一种快速通用的计算工具方便了用户的使用，可是它还在进展之中，以后必将出现功能更加强大的计算器，所以本次设计是基于 51 单片机来设计的计算器，实现基本功能加减乘除，采纳 LCD 显示结果数据。【关键词】MCS-51；MM74C922；Protues；矩阵键盘；计算器Design and implementation of a simple calculator based on MCS-51 single chip microcomputer【 Abstract 】 Nowadays, with the continuous improvement of people's living, electronic products have already walked into each and every family, whether life or learning, or entertainment and recreation almost everything cannot do without the electronic products, computing capability of large and complex is the human brain are not competent, and relatively easy to go wrong. The calculator as a fast general-purpose computing tools are easy to use, but it is still in development, later will appear a calculator function more powerful, so this design is to design based on 51 single chip computer, the realization of the basic functions of add, subtract, multiply and divide, uses LCD to display the results of data.【Keywords】MCS-51；MM74C922；Protues；Matrix keyboard ；calculator目 录第一章 绪论............................................11.1 设计背景.........................................11.2 设计内容.........................................11.3 设计意义.........................................1第二章 设计方案及技术基础...............................12.1 设计方案.........................................12.2 方案论证及设计...................................12.3 MCS-51 单片机及开发环境介绍......................22.3.1 MCS-51 系列单片简介.........................22.3.2 M...
