文档介绍：毕业设计论文
系部电子信息学院
专业计算机控制技术
题目基于单片机的数字电子钟

毕业设计(论文)中文摘要
摘要:20世纪末,电子技术获得了飞速的发展,在其推动下,现代电子产品几乎渗透了社的各个领域,有力地推动了社会生产力的发展和社会信息化程度的提高,同时也使现代电子产品性能进一步提高,产品更新换代的节奏也越来越快。
现代生活的人们越来越重视起了时间观念,可以说是时间和金钱划上了等号。对于那些对时间把握非常严格和准确的人或事来说,时间的不准确会带来非常大的麻烦,所以以数码管为显示器的时钟比指针式的时钟表现出了很大的优势。数码管显示的时间简单明了而且读数快、时间准确显示到秒。而机械式的依赖于晶体震荡器,可能会导致误差。
数字钟是采用数字电路实现对“时”、“分”、“秒”数字显示的计时装置。数字钟的精度、
稳定度远远超过老式机械钟。在这次设计中,我们采用LED数码管显示时、分、秒,以24小时计时方式,根据数码管动态显示原理来进行显示,用12MHz的晶振产生振荡脉冲,定时器计数。在此次设计中,电路具有显示时间的其本功能,还可以实现对时间的调整。数字钟是其小巧,价格低廉,走时精度高,使用方便,功能多,便于集成化而受广大消费的喜爱,因此得到了广泛的使用
关键字:单片机,数字电子钟,显示时间,系统仿真
Abstract :The late 20th century, electronic technology has been rapid development in its promotion of modern electronics into almost a club Fields, a strong impetus to the development of social productive forces and socialimprovement in the level of information, but also the modern electronic products Further improve the product performance, product replacement is also faster and faster pace. Growing emphasis on modern life from the time the concept of time and money can be said to draw the equal sign. For those who Grasp of time and things are very strict and precise, the time will bring great incorrect trouble, so digital Tube display pointer clock than the clock showed a big advantage. Digital display of time and read simple Number of fast, accurate display of time to seconds. The mechanical oscillator depends on the crystal may lead to error. Digital Clock is a digital circuit implementation of the "when", "sub", "seconds" The figures show the timing device. Digital clock accuracy Stability is far more than the old mechanical clock. In this design, we use LED digital display hours, minutes, seconds, to 24 Hour time mode, according to digital control theory to dynamic display to display, use the 12MHz crystal oscillation pulse, will Timer count. In this design, the circuit has a display time of the this function, you can also realize the time adjustment. Figure Clock is pact, low cost, travel time and high pr