摘要在现代科技迅猛进展的当今，计算器依旧是人们日常生活中不可或缺的电子产品之一。计算器始终在不断进展及完善之中，功能必将更加强大。基于这样的理念，本设计采纳 AT89C51 单片机作为主控芯片，使用 C 语言为系统进行编程，采纳 4*4 矩阵键盘作为输入模块，输出模块采纳 LCD1602 液晶显示，从而实现基于单片机的基本功能。本设计重点说明以下几个方面内容：1. 基于单片机的计算器所具备哪些基本功能，对矩阵键盘输入原理及液晶显示原理进行简单的阐述。2. 介绍系统的整体设计理念，展示系统设计的流程框图，并对功能模块的划分，及所选用的元器件性能参数进行详细说明。3. 对系统的每个功能模块的软硬件设计，进行详细说明。 关键词 单片机，AT89C52,LCD1602 液晶,矩阵键盘，C 语言ABSTRACTIn the rapid development of modern science and technology today, the calculator is still one of the electronic products is an integral part of people's daily life. The calculator always among the continuous development and improvement, the function will certainly be more powerful. Based on this concept, the design uses AT89C51 microcontroller as the master chip, using the C programming language for the system, with 4 * 4 matrix keyboard as an input module, output module LCD1602 LCD display, in order to achieve the basic functions of the MCU.This design highlights the following aspects:1.microcontroller-based calculator with basic functions, the principle of a simple exposition of principle and LCD matrix keyboard input.2.describes the system's overall design concept, showing the flow diagram of the system design, the and function module framing, and optional Component performance parameters described in detail.3.of each functional module of the system hardware and software design in detail.Key words microcontroller AT89C52,LCD1602 LCD,matrix keyboard,C language目 录摘要..................................................................................................
