单片机毕业设计优秀论文.doc

编 号： 审定成绩： 重庆邮电大学 毕业设计（论文） 设计（论文）题目： 学院： 学 生 姓 名 ： 专 业 ： 班 级 ： 学 号 ： 指 导 教 师 ： 答辩组 负责人 ： 填表时间：年月 重庆邮电大学教务处制 摘 要 近年来计算机在大规模集成电路的发展社会领域的渗透，单片机应用正在不断地深入由于它具有功能强，体积小功耗低，，使用方便等特点，因此特别适合于与控制有关的系统，越来越广泛地应用于自动控制，智能化仪器，仪表，数据采集，军工产品以及家用电器等各个领域作为微型机的一个主要分支，单片机在结构上的最大特点是把CPU、RAM和ROM存储器、定时器和多种I/O接口电路集成在一块超大规模集成电路芯片上。从它的组成和功能来看，一块单片机芯片其实就是一台计算机。 本次设计是采用MSC-51单片机来设计的四位数计算器, 采用C语言进行程序编写实现计算器功能。外接4X4的键盘，通过键盘扫描来完成输入数的控制，利用驱动电路使数值与结果在七段共阴极数码管上正常显示，并设有清零键可随时完成计算与显示的清零。计算器将完成的0至9999整数的一次加/减/乘/除运算。 【关键词】MSC-51单片机四位数计算 C语言 ABSTRACT In recent years, with the computer in the social sector and the development of large-scale integrated circuits, the application of SCM is continuously to thoroughly, because it has the strong function, small volume, low power consumption, low price and reliable, easy to use, so particularly suitable for related control and system, more and more widely used in automatic control, intelligent instrument and meter, data acquisition, military products, and household electrical appliances, etc. As one of the main branch of microcomputer, the single-chip microcomputer in the structure of the biggest characteristic is to put the CPU, memory, and timer RAM and ROM and I/O interface circuit integration on a large scale integrated circuit chip. From its composition and function, a single chip is actually a computer. This design is adopted to design the MSC - 51 single-chip four digits calculator, using C language program realization calculator function. External 4X4 keyboard, through the keyboard scan to complete input number of control, use drive circuit make numerical results in the seventh with the normal cathode tube of digital display, and reset button at the finish calculation and display cleared. Calculators will complete the 0-9999 integer by plus / minus / multiply / divide. 【Key words】MSC-51 Microcontroller Four-dig