基于单片机数字温度计_检测报告.docVIP

摘 要 随着当今世界经济的快速发展和信息化时代的来临，各式的小型智能家电产品陆续出现在我们的生活当中。日历是人们不可或缺的日常用品。但一般日历都为纸制版本，使用不方便，寿命也相对较短。电子万年历运用智能电子控制和显示技术，改善了纸制日历的缺陷。本设计以AT89S52单片机为核心，由DS1302时钟芯片提供时钟，由八段数码显示管显示。以AT89S52单片机为核心,构成单片机控制电路，AT89C52是一种带8K字节闪速可编程可擦除只读存储器（PEROM）的低电压、高性能CMOS 8位为控制器。该器件采用ATMEL 非易失存储器制造技术制造，与工业标准的80C51和 80C52指令集和输出管脚相兼容。DS1302时钟芯片是美国DALLAS公司推出的低功耗实时时钟芯片，它可以对年、月、日、星期、时、分、秒进行计时，还具有闰年补偿等多种功能，而且DS1302的使用寿命长，误差小,在基于单片机系统的数字钟电路中，除了基本的单片机系统和外围电路外，还需要外部的控制和显示装置。本电路主要以单片机AT89S52为核心而设计的，通过单片机对信息的分析与处理，控制外围设备。系统由复位模块、时钟模块及显示模块组成，后来在时钟模块的基础上又加载了日历、星期的模块。 关键词：电子万年历；单片机；时钟芯片 Abstract With the rapid development of world economy and the forthcoming of information era，many kinds of mini-type intelligent domestic electric appliances appear in our life one after another. Calendars are necessary daily goods in people’s life.But they are generally paper goods with inconvenient use and short life. Electronic calendar adopts the technology of intelligent electronic control and display，and then improves the deficiency of paper calendars. The design adopts the core of AT89S52 MCU，which is a low-power，high-performance,CMOS 8-bit microcomputer with 8K bytes of Flash programmable and erasable read only memory memory(PEROM).The device is manufactured using Atmel’s high density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pin out. In digital clock circuit based micro controller unit system，there are the external controlling and display device besides the fundamental monolithic machine system and the outer-ring circuit. The key of the circuit in this design is AT89S52，using the micro control system to process information to control the outer-ring circuit. The system is made up of circuit and clock circuit. Date and week modul is the external part. Key Words: electronic calendar; MCU; clock chip 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc359584162 摘 要 PAGEREF _Toc359584162 \h I HYPERLINK \l _Toc359584163 Abstract PAGEREF _Toc359584163 \h II