文档介绍：基于单片机AT89S52的多功能数字显示定时器
摘要
时钟是人们生活中必不可少的一种工具,它在人类生产、生活、学****等多个领域得到广泛的应用。随着科技的发展,人们不仅对于时钟精度的要求越来越高,而且对于时钟功能的要求也越来越多,时钟已不仅仅是一种用来显示时间的工具,在很多实际应用中它还需要实现其它的功能,诸如闹钟功能、日历显示功能、温度测量功能。
钟表的数字化给人们的生产生活带来了极大的方便,诸如定时自动报警、按时自动打铃、时间程序自动控制等等。可以说,设计多功能数字时钟的意义不只在于数字时钟本身,更大的意义在于它在许多实时控制系统中的应用。因此,研究数字时钟及扩大其应用,有着非常现实的意义。
本文探讨了一种带数字温度计的多功能数字显示时钟的的实现方案,介绍了以Atmel89s52 单片机为核心,控制实时时钟芯片DS12C887,数字温度芯片DS18B20,和液晶显示模块1602,实现时间和闹钟的显示与调整,温度显示,整个系统的软件设计在Keil 环境下以C 语言实现。
关键词电子时钟/AT89S52/时钟芯片/温度传感器
BASED ON AT89S52 MICROCONTROLLER MULTI-FUNCTIONAL DIGITAL
DISPLAY CLOCK
ABSTRACT
Clock is essential to people's lives as a tool of human production ,and it is widely used in living, learning and any other fields .With the development of technology, people not only demand higher and higher clock precision, but also need more and more functional requirements for the clock .Clock has not only a tool used to display time, in many practical applications, it needs to be able to achieve more any other functions. For example, it is used in alarm clock, calendar display, temperature measurement function and so on.
Digital clocks has brought to the people's production and life great convenience, such as auto regular alarm, auto time and rang the bell, the auto time control and so on .You could be said that the significance of design multi-function digital clock has not only been confined to the digital clock itself, but it is used in many real-time control system. Therefore, it has a very real sense to the study digital clock and extend its application,
This paper discusses a kind of multi-function digital display clock with emperature measurement function, it is based on the Atmel89s52 MCU , control real-time clock chip 887, the temperature chip DS18B20who has temperature measurement function, and liquid crystal display module 1602 to achieve the time and alarm clock display ,temperature function, the system software was designed on the environment for Keil with C language.
KEYWORDS electronic clock,AT8