矩阵键盘课程设计报告(共10篇).docx

矩阵键盘课程设计报告(共10篇) 　　摘要　　在日常生活中，我们经常要用到键盘来实现对电子装置的控制。小到手表手机，中到电视电脑，大到各种复杂仪器，都需要通过各种按键来实现各种操作。本次课程设计以按键控制显示为主题，以MSP430G2553单片机及其接口芯片为核心构造一个键盘控制显示系统。单片机最大的特点是能单独实现电路控制所要求的智能化控制功能。单片机控制系统能够取代以前利用复杂电子线路和数字电路构成的控制系统，可以通过软件来实现。数码管4*4矩阵键盘按键号是按下任意键时，数码管都会显示其按键序号，通过MSP430G2553单片机的程序处理，扫描程序首先判断按键发生在哪一列，然后根据所在的行附加不同的值，从而得到按键的序号。　　关键词：单片机MSP430G2553数码管键盘显示　　Abstract　　Indailylife,weoftenwanttousethekeyboardtorealizethecontrolofelectronicdevices.Smalltowatchphone,toTVincomputer,bigtoallkindsofcomplexinstruments,allneedthroughallkindsofpressingbuttonsallkindsofoperation.Thiscoursedesignbuttonstocontrolanddisplayasthetheme,MSP430G2553single-chipmicrocomputeranditsinterfacechipasthecorestructureakeyboardcontrolanddisplaysystem.Thebiggestcharacteristicsisasinglechipmicrocomputercontrolrealizationcircuitcanalonefortheintelligentcontrolfunction.Single-chipmicrocomputercontrolsystemcanbereplacedbycomplexbeforeelectroniccircuitsanddigitalcircuitconsistsofthecontrolsystem,bysoftwaretorealize.Digitaltube4*4matrixkeyboardkeynumberispressanykey,digitaltubewillshowthebuttons,serialNumbers,throughtheMSP430G2553microcontrollerprocedures,scanningprogramfirstjudgewherealistofkeyhappen,thenaccordingtothelinewhereadditionaldifferentvalues,whichgetbuttonsserialnumber.　　Keywords:SCMMSP430G2553digitaltubekeyboarddisplay　　目录　　1系统方案分析············································································································3　　键盘的选用·······································································································3　　单片机的选用···································································································4　　显示器的选用···································································································4　　辅助功能的论证与选用···················································································42系统理论分析与计算·································································································5　　单片机主机系统电路分析·················