文档介绍：摘要
本文介绍了一款基于AT89S51单片机控制的带有温度显示的电子钟的设计,通过多功能数字钟带有温度的设计思路,详细叙述了系统硬件、软件的具体实现过程。论文重点阐述了数字钟硬件中MCU模块、温度模块、时钟模块、显示模块和相关控制模块等的模块化设计与制作;软件同样采用模块化的设计,包括中断模块、、温度模块、时间调整模块设计,并采用简单流通性强的C语言编写实现。本设计实现了时间的修改功能和年、月、日和星期的显示和温度显示功能。
关键词:
AT89S51 单片机数字钟温度显示

Abstract
This paper introduced the design of digital clock based on SCM of AT89S51, the specific process of how the system hardware and software achieved were detailed description through the design of multifunction digital clock. The modular design and production, which consisted of MCU module, voice module,clock module and the associated control module, were mainly recounted;As well as hardware designing,software design use the same method, consists suspension module,alarm clock module, voice module, time adjust module, and that use the C language to achieve because of its simple and strong negotiability. In this design the functions of time and alarm clock run and change, voice broadcast,functions of the year, month, day and week display have been achieved. And paring the actual clock.
 Key  words :
AT89S51 Microcontroller Digital Clock the Display of Temperature

目  录
前言..............................................................1
第一章系统实现功能、设计方案论证及芯片介绍...............2
第一节系统要求实现功能.........................................2
第二节设计方案论证..............................................2
第三节芯片介绍..................................................4
一、DS18B20芯片介绍.........................................4
二、DS1302芯片介绍..........................................9
第二章电路硬件设计及分析.................................13
第一节时钟电路............................................ ...13
第二节复位电路................................................13
第三节DS1302时钟电路..........................................14
第四节 DS18B20温度计电路.......................................14
第五节键盘电路................................................15
第六节显示电路................................................16
第七节按键提示电路............................................17
第三章软