哈尔滨工业大学华德应用技术学院毕业设计（论文）--摘要本文主要从硬件和软件两方面介绍了MCS-51系列单片机多功能计数器的设计思路，简单说明如何实现对计数的功能，并对硬件原理图和程序框图作了简洁的描述。本设计共分电源、单片机控制模块、信号前向通道处理模块、键盘、液晶显示模块、模数（A/D）转换模块、语音播报模块、测温及时钟八个模块。以51系列单片机为控制模块核心，对多功能计数器可编程控制，实现周期、频率、时间间隔的测量。同时可实现对测量结果、时钟、温度及被测信号幅度的液晶显示及语音播报。本设计介绍的单片机多功能计数器系统的主要内容包括：系统方案、元器件选择、系统理论分析、硬件设计、软件设计、系统调试及主要技术性能参数。关键词多功能；周期；频率；时间间隔；测量；语音播报AbstractThispapermainlyfromtwoaspectsofhardwareandsoftwaredesignofMCS-51seriessinglechipmulti-functioncounter,illustrateshowtorealizethefunctionofcount,andthehardwareschematicdiagramandprogramblockdiagramforasimpledescription.Thedesignconsistsofapowersupply,asingle-chipcontrolmodule,signalprocessingmodule,thekeyboardforwardchannel,liquidcrystaldisplaymodule,analog-to-digital(A/D)conversionmodule,voicebroadcastmodule,temperaturemeasurementandclockmoduleeight.With51seriesmicrocontrollerasthecorecontrolmodule,themultifunctionalcounterprogrammablecontrol,measurementofthecycle,frequency,timeinterval.Atthesametime,canrealizetheliquidcrystalonthemeasurementresults,theclock,temperatureandthemeasuredsignalamplitudedisplayandvoicebroadcast.Themaincontentofmulti-functioncountersystembasedonthedesignofthesystem,including:thecomponentselection,systemanalysis,hardwaredesign,softwaredesign,systemdebuggingandthemaintechnicalperformanceparameters.KeywordsMulti，Cycle，Frequency，Timeintervalmeasurement，VoicebroadcastTOC\o"1-3"\h\z\uHYPERLINK\l"_Toc373169170"摘要PAGEREF_Toc373169170\h1HYPERLINK\l"_Toc373169171"AbstractPAGEREF_Toc373169171\h3HYPERLINK\l"_Toc373169172"第1章绪论PAGEREF_Toc373169172\h6HYPERLINK\l"_Toc373169173"1.1单片机概述PAGEREF_Toc373169173\h6HYPERLINK\l"_Toc373169174"1.1.1单片机历史PAGEREF_Toc373169174\h6HYPERLINK\l"_Toc373169175"1.1.2单片机的基本结构PAGEREF_Toc373169175\h7HYPERLINK\l"_Toc373169176"1.1.3单片机的应用领域PAGEREF_Toc373169176\h9HYPERLINK\l"_Toc373169177"1.2计数器概述PAGEREF_Toc373169177\h10HYPERLINK\l"_Toc373169178"1.2.1计数器的技术背景与发展趋势PAGEREF_Toc373169178