STC89C52 单片机来设计的数字钟 单片机课程设计.docx

摘要单片机在日常生活中得到了广泛的应用，作为一个微控制器，它具有体积小，功能强，处理速度快，与C语言很好的结合，方便开发的诸多优点，C51单片机已经成为了一个经典。数码管显示在日常生活中也尤为重要，特别是它的显示效果，在某些场合下，其它显示器件是无法胜任的，而且他价格低廉。串口通信，在计算机通信中有着很重要的地位，使用它，上位机与下位机的通信非常方便，ISD1420芯片，作为一个经典的语音芯片，它的使用非常方便，控制简单，一个最小的录放系统仅由一个麦克风、一个喇叭、两个按钮、一个电源、少数电阻电容组成。JAVA语言是比较流行的编程语言，其简单，高效使之得到了广大编程人员的认可。数字钟在日常的生活中尤为重要，作为时间的估量，他必须精确。本次课程设计就以，STC89C52单片机，6个八段数码管，ISD1420语音芯片，喇叭，串口通信，JAVA语言实现一个带有上位机调时，数码管显示，整点报时的数字钟系统。关键字：整点报时、串口通信、数码管显示、数字钟。AbstractMicrocomputer in the daily life a wide range of applications, as a micro controller, it has small, the function is strong,fast processing speed, and C language is very good union, for development of many other advantages, C51 has become a classic. Digital pipe display in daily life is also very important, especially its display effect, in some cases, other display device is not competent for, and he at low prices. Serial communication, in computer communication has a very important position, use it, PC and a machine under the communication is very convenient, and ISD1420 chips, as a classic voice chip, it is very easy to use, simple control one of the least of system like the only by a microphone, a horn, two button, a power supply, a few resistance of capacitance. JAVA language is more popular programming language, its simple, efficient to get the general programming staff recognition. A digital clock in daily life is especially important, as a measure of time, he must be precise. This course is designed to, STC89C52 microcontroller, six for the digital tube, ISD1420 voice chip, horn, serial communication, JAVA language implementation with a PC tone, digital pipe display shows the time on the hour, a digital clock system.Key word: on the hour time, the serial communication, digital pipe display, digital clock.目录I.摘要1II.Abstract11.设计要求及方案确定3A.设计要求3B.方案确定32.硬件电路设计及描述3A.器件的型号和参数31.单片机的选择32.STC89C52的详细资料33.时钟的实现34.LED数码管显示模块35.串口通信36.整点报时3B.硬件整体电路图33.软件设计3A.主程序3B.定时器T0中断服务程序3C.串口修改模块3D.整点报时模块3E.显示模块3F.上位机模块3G.单片机程序源码34.小结35.参考文献3设计要求及方案确定设计