文档介绍：电子秒表设计说明书单片机课程设计说明书---电子秒表---一、题目:基于单片机的电子秒表二、任务要求:本设计以MCS-51系列单片机为核心,采用常用电子器件设计,一个电源开关,两个按键,三位数码管显示,打开电源开关后显示8,每秒循环左移一位,即□□8—>□8□—>8□□—>□□8—>…,按A键开始计时,实时显示所经历的时间,按B键停止计时并显示从开始到当前时刻的时间,,量程为0~。要求按键输入采用中断方式,按键A接INT0,按键B接INT1。三、组内成员:四、指导老师:,是对以前所学课程的一个总结。21世纪是一个电子技术和电子元件有更大发展的世纪。目前数字电子技术已经广泛地应用于计算机,自动控制,电子测量仪表,电视,雷达,通信等各个领域。例如在现代测量技术中,数字测量仪表不仅比模拟测量仪表精度高,功能强,而且容易实现测量的自动化和智能化。随着集成技术的发展,尤其是中、大规模和超大规模集成电路的发展,数字电子技术的应用范围将会更广泛地渗透到国民经济的各个部门,并将产生越来越深刻的影响。随着现代社会的电子科技的迅速发展,要求我们要理论联系实际,数字电路课题设计的进行使我们有了这个非常好的机会,通过这种综合性训练,我的动手能力、实际操作能力、综合知识应用能力得到了更好的提升。近年来随着科技的飞速发展,单片机的应用正在不断的走向深入,同时带动着传统控制检测日新月异更新。在实时检测和自动控制的单片机应用系统中,单片机往往是作为一个核心部件来使用,仅单片机方面的知识是不够的,还要根据具体的硬件结构,以及针对具体的应用对象的软件结合,加以完善。人们在日常生活中,有很多时候要精确地计算时间,但往往因为人为因素造成人们不愿意看到的误差。秒表的出现,解决了传统的由于人为因素造成的误差和不公平性。本次课程设计得到了老师和同学的很多帮助,在此一一表示感谢!由于实践经验的缺乏,且水平有限,时间仓促。设计过程中难免有错误和欠妥之处,恳请老师批评指正。目录绪论············································4概述··············································4设计目的··········································5设计任务和内容····································5总体设计及核心器件简介····················6总体设计···········································6单片机概述········································6单元电路模块设计····························10按键电路··········································10时钟电路···········································11LED数码管显示电路·································11复位电路··············································································15软件编程设计··································17程序设计思想·······································17程序流程图·········································18参数设置···········································19设计体会及总结·······························20附录一电路图··········································21附录二汇编源程序·····································22参考文献···············································,单片机在生产过程控制、自动检测、数据采集与处理、科技计算、商业管理和办公室自动化等方面获得了广泛的应用。单片机具有体积小、重量轻、耗能省、价格低、可靠性高和通用灵活等优点,因此也广泛应用于卫星定位、汽车火花控制、交通自动管理和微波炉等专用控制上。近几年来,单片机的发展更为迅速,它已渗