文档介绍：摘要本设计主要设计了一个基于AT89C51单片机的电子时钟。并在数码管上显示相应的时间。并通过一个控制键用来实现时间的调节和是否进入省电模式的转换。应用Proteus的ISIS软件实现了单片机电子时钟系统的设计与仿真。该方法仿真效果真实、准确,节省了硬件资源。同时单片机以AT89C51为核心元件采用LED数码管显示器动态显示“时”,“分”,“秒”的现代计时装置。与传统机械表相比,它具有走时精确,显示直观等特点。另外具有校时功能,秒表功能,和定时器功能,利用单片机实现的数字时钟具有编程灵活,便于功能的扩充等优点。关键词:数字钟系统;单片机;LED液晶显示器DigitalclocksystemAbstractThesystemusesMCUwithtime,theschoolfeaturessuchasthedigitalclock,ponentsoftheLEDdigitaldisplaydynamicdisplay"when"and"points"and"seconds"paredwiththetraditionalmechanicalwatches,ithasaprecisepaththatintuitive,,stopwatchfunction,:digitalclocksystem;SCM;LEDLCDMonitor目录绪论.............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................、原理及器件选择.....................................................................................................................................................................................................................................................................