基于单片机的多功能数字电子数字电子时钟系统设计

AbstractAt the end of the 20th century,the electronic technology has obtained the rapiddevelopment,under its impetus,the modern electronic products almost permeated thesociety.Each domain,promoted the social productivity development and the socialinformationization degree vigorously the enhancement,simultaneously also causesthe modern electron production.Character can be further improved,the pace of productupgrading is also faster and faster.People in modern life pay more and more attention to the concept of time,it canbe said that time and money draw the equal sign.For those whoVery strict and accurate grasp of time for people or things,the inaccurate timewill bring very big trouble,so with digital.A clock with a tube for display showsa great advantage over a pointer clock.The time displayed on the nixie tube is simple,clear and readable.Count fast,time accurate display to seconds.Mechanicaldependence on crystal oscillators may lead to errors.Digital clock is a digital circuit to achieve the "time","minute","second"digitaldisplay timing device.Accuracy of digital clock.Far more stable than the oldmechanical clock.In this design,we use LED digital tube display time,minutes,seconds,to 24 hour timing mode,according to the digital tube dynamic displayprinciple to display,with 12MHz crystal oscillator oscillation pulse,fixedTime counter.In this design,the circuit has the function of displaying the timeand can adjust the time.Digital clock is its compact,low price,high precision,easy to use,function,easy to integrate and by the majority of consumer love,Therefore,it is widely used.Keywords:single chip microcomputer;Digital clock