(参考)基于51单片机的简易计算器设计.doc

河南##############学校 毕业设计（论文） 基于51单片机的简易计算器 系 部: 自动控制系 专 业: 电气自动化 班 级: 自083 姓 名: 崔 # # 学 号: 091415302 指导老师: 许 # 二零一二年五月八日摘要 工程实践教学环节是为了学生能够更好地巩固和实践所学专业知识而设置的，在本次工程实践中，我以《智能化测量控制仪表原理与设计》、《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，能够实现多位数的四则运算。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。本系统的设计说明重点介绍了如下几方面的内容：基于单片机简易计算器的基本功能，同时对矩阵键盘及数码管动态显示原理进行了简单的阐述；介绍了系统的总体设计、给出了系统的整体流程框图，并对其进行了功能模块划分及所采用的元器件进行了详细说明；对系统各功能模块的软、硬件实现进行了详细的设计说明。 关键词：MCS-51； 8051Abstract The engineering practice teaching is to students better to consolidate and practice have set up by the professional knowledge, in this engineering practice, I to the intelligent measurement control instrument principle and design , the MCS-51 series single chip computer and its application course knowledge as the foundation, the design the simple calculator. This system to MCS-51 of the 8051 series single chip microcomputer as the core, can realize the connection arithmetic. The system through the test matrix keyboard scan, judge whether key, the data transfer the numerical into digital tube dynamic display. This system mainly introduced the design that the following aspects of content: based on single chip microcomputer simple calculator basic functions, and the matrix keyboard and a digital tube dynamic display of the principle of a simple expatiated; introduced the design of the whole system, the whole process of the system are discussed, and its function module partition and the components for a detailed explanation; the functional modules of the system hardware and software of the implementation of the detailed design instructions. Key words: MCS-51； 8051 single chip microcomputer； Calculator； Add, subtract, multiply and divide:1 1.1 课题简介·······························································1 1.2 设计目的·······························································1 1.3 设计任务