基于 Proteus 的抢答器的设计与仿真摘 要单片机作为微型计算机的一个分支，进展十分迅速，被广泛地应用于各个领域，单片机的进展是控制技术的一次革命。市面上的抢答器各种各样，五花八门，种类繁多。大体上分两种，一种是用数字电路制作的抢答器，另一种是用单片机控制的抢答器。本文介绍了以 AT89C51 为核心的单片机数字抢答器。该简易设计可以使用一个 LED 数码管显示获得抢答权的选手号码，另一个进行倒计时，可通过二极管发光及蜂鸣器报警提示。扩展设计可通过编写程序来实现抢答器的基本功能，提供了限时答题，抢答未开始的抢答违规处理，抢答时间和限时的修改。通过一个四位共阴二极管显示器来显示选手编号和倒时时间显示，通过二极管发光及蜂鸣器报警提示。本文详细介绍了两种抢答器的设计过程，通过软件 Proteus 设计电子电路原理图，最后使用 Keil uVision3 编写程序，转换成 hex 的文件使用 Proteus 进行模拟仿真。关键词：单片机 抢答器 Proteus Keil uVision3The design and simulation of the responder based on ProteusAbstractMicro Controller Unit （ MCU ） which develops quickly is one embranchment of the Microcomputer. It is used widely in various fields. The development of MCU is a revolution of the control technology. The quiz answers in the market are diversity and variety. Generally there are two kinds. One is made by digital circuits. Another is controlled by MCU.This paper introduces an digital quiz answer controlled by MCU, which core is the AT89C51 chip. The simple design we can use one LED numerical tube to display the number of the player who gets the first right to answer. Another LED numerical tube is used to count down, and can warn through diode radiation and buzzer alarm. Expand design can achieve the variety of functions through programming. It provides limited answer; the responder on illegal processing vies to answer first. To modify the vies to answer first time and restricted time. Though a four public cathode diodes mon...
