单片机控制的频率计毕业设计论文.doc

摘要 计算机的出现是人类的生活发生了翻天覆地的变化。单片机也是伴随着计算机的产生而产生和发展的。也可以毫不夸张地说，单片机技术的出现给现代工业测控领域带来了一次新的技术革命。它使原来用分立元件进行的控制，转变到用程序进行控制，使控制的可靠性增加了，功能增多了，成本降低了，控制更灵活了。最重要的是，使学习和掌握测控技术变的更加容易。许多非自动化控制专业的人员也能毫不费力地，甚至通过自学单片机技术而成为此专业的控制专家。因单片机技术的应用而产生了许多新兴的专业，它开辟了更多的单片机应用领域，如工业控制，自动化设备，机床，数据采集和处理，智能化仪表，办公自动化，家电，汽车，医疗器械等。越来越多的人在关心，学习，从事单片机应用技术。单片微型计算机是把组成微型计算机的各个功能部件，即中央处理器CPU，随机存储器RAM，只读存储器ROM，I/O接口电路，定时计数器以及串行通讯接口等部件制作在一块集成芯片中，简称单片机。它是随微型计算机的发展而产生和发展的，在智能化仪表，检测和控制系统领域都有着广泛的应用。 关键词 ： 单片机 秒表 时钟 计时器 Abstract Appearing computer is that earthshaking change happened in human beings life. The monolithic machine is also to come into being but to come into being and develop to be accompanying a computers. Also can exaggerate a field not in the least saying monolithic machine technology appearing is measured and controlled a field having brought about a new technological revolution by modern industry. It has used controlling using discrete component to be in progress in the first place , the change has controlled to using procedure to be in progress , the reliability that the messenger controls has increased by , the function has increased by , cost has reduced , has controlled more nimbly. The most important being, is especially easy to make TTC Telemetry Tracking and Command studying and grasping changeable. Many are not that the personnel who automates to control special field cant can a field strenuousness without any, even by studying the monolithic machine independently Keywords: Monolithic machine stopwatch clock calculagraph 目 录 摘要……………………………………………………………………………………….I Abstract……………………………………………………………………………………………………II 第一章 绪论……………………………………………………………………………..1 1.1 单片机的发展及特点………………………………………………………………………….1 1.2 单片机的应用………………………………………………………………………………….1 第二章 系统整体框架设计……………………………………………………………..2 2.1 设计内容……………………………………………………………………….……2 2.2设计功能要求……………………………………………………………………………………2 2.3 方案论证………………………………………………………………………………..…….2 第三章 系统硬件设计…………………………………………………………………..3 3.1 硬件组成……………………………………………………………………