1、 摘要摘要 自计算机问世以来，单片机技术在社会各领域中得到了广泛的应用。在流水 灯控制系统中，单片机更是取代了由齿轮调节延迟时间的旧式市发展速度，成为 日后此系统中的核心部分。由于单片机具有一些突出的优点：体积小、重量轻、 电源单一、功耗低；功能强、价格低；数据大都在单片机内部传送，运行速度快、 抗干扰能力强、可靠性高，所以单片机被广泛的应用于测控系统、数据采集、智 能仪器仪表、机电一体化产品、智能接口、计算机通信以及单片机的多级系统等 领域。本文主要讲的是单片机，课题名称为多按键花样流水灯，它使我们学会了 如何使用单片机控制我们日常生活中的多设备设施的应用。 通过本课题的设计以 后，使我了解
2、到了单片机的许多方面的应用。 Abstract Since the introduction of computer-chip technology in society, in every field in a wide range of applications.Running light control systems, the microcontroller is replaced by the gear regulating the delay time of old growth rate in future in the heart of this system.Due to t
3、he MCU has several benefits: small size, light weight, a single power supply; features, low power consumption and low; and the data transfer, one finds in SCM internal, run fast, uding, high reliability, so single-chip is widely used in measurement and control system, data acquisition, instrumental,
4、 Mechatronics product, smart interface, computer communications, as well as single-chip multilevel system, etc.This article is primarily deals with a subject name is Multi-key pattern of light water, flowing water and light control, which enables we learned how to use the SCM control our lives in the application of the facility. 关键词关键词: 单片机、可编程控制器、交通型号灯、可靠性高。 目 录 绪论. 2 1. 相关元件及电路设计 2 1.1 AT89C51 芯片功能特性及应用 . 2 1.2 MCS-51 单片机 3 1.2.1 内部结构 . 3 1.2.2 引脚定义 . 3 1.2.3 外部总线构成 6 1.3 单片机时钟电路及时钟时序单位 . 7 1
