基于单片机的门铃控制课程设计(定稿)

课程设计

基于单片机的门铃控制

基于单片机的门铃控制

摘要

随着科技的发展，人们的生活越来便捷。其中单片机的出现让工业和生活有了质的飞跃。它功能强大，体积小，价格实惠，因而被广泛应用于智能行业。这次的课程设计就是从学习应用中掌握单片机的编程，仿真调试等技能。本篇介绍的就是基于单片机的门铃控制，有单片机控制输出频率是扬声器发出“叮咚”的响声。通过单片机的定时/计数T0，产生700HZ和500HZ两种不同频率。本次课程设计选用的是单片机AT89C51。

关键词：单片机，ATC51，扬声器，频率，C语言。

Timer Controlling Doorbell Based on AT89C51

ABSTRACT

AT89C51isasmallsinglechiplaunchedbyATMELcompany,andwecanuseittoa chieveelectronicdoorbellwhichcanplaymusicandhasexternalscreentodisplaywelc omemessageandisanewbelldesign,sothesmallmicrocontrollerisworthyofwidelyus inginintelligentresidentialorintheintelligentbuildingsystem.Proteusisthepowerful EDAsimulationsoftware,ithasrichsimulationcomponents,especiallyitisthedynami csimulationofperipheralswhichgreatlycomplementsdeficienciesofothersimulation software;andtheintroductionofthevirtualtoolboxprovidesaconvenienttestforthesi mulation.Thispaperanalyzesthenew,uniqueusesof51singlechipinsmallsimulationp rocessoranditsperipheralhardware.

KEYWORDS：AT89C51，timer，buzzer，LCD1602liquidcrystaldisplay，Proteussimulationsoftware，WA VE6000orKeil805

目录

摘要 ------------------------------------------------------------------------------------------------------------------------------ 1 摘要（外文）------------------------------------------------------------------------------------------------------------------ 2 绪论 ------------------------------------------------------------------------------------------------------------------------------ 4 1总体方案设计 --------------------------------------------------------------------------------------------------------------- 4

1.1设计思路 ------------------------------------------------------------------------------------------------------------ 4

1.2相关软件及说明--------------------------------------------------------------------------------------------------- 4

2 单片机AT89C51简介 ----------------------------------------------------------------------------------------------------- 6

2.1单片机及其引脚排列--------------------------------------------------------------------------------------------- 6

2.2用到的AT89C51各引脚功能简介----------------------------------------------------------------------------- 6

2.3振荡器特性 --------------------------------------------------------------------------------------------------------- 7

2.4芯片擦除 ------------------------------------------------------------------------------------------------------------ 7 3系统主要硬件电路设计--------------------------------------------------------------------------------------------------- 8

3.1 单片机主机系统电路-------------------------------------------------------------------------------------------- 8

3.1.1原理图器件参数 ----------------------------------------------------------------------------------------- 9

3.2扬声器电路 -------------------------------------------------------------------------------------------------------- 11

4 系统软件设计-------------------------------------------------------------------------------------------------------------- 11

4.1设计思路 ----------------------------------------------------------------------------------------------------------- 11

4.2电路原理图 ------------------------------------------------------------------------------------------------------- 14

4.3 C语言程序代码------------------------------------------------------------------------------------------------- 14

5 PROTEUS简介 ------------------------------------------------------------------------------------------------------------- 16

6 keil与Proteus的联调分析 ----------------------------------------------------------------------------------------- 16

6.1硬件调试 ----------------------------------------------------------------------------------------------------------- 16

6.2软件调试 ----------------------------------------------------------------------------------------------------------- 16

6.3软硬件联调 -------------------------------------------------------------------------------------------------------- 16 结论 ---------------------------------------------------------------------------------------------------------------------------- 18 参考文献------------------------------------------------------------------------------------------------------------------------ 1 谢辞 ------------------------------------------------------------------------------------------------------------------------------ 2