文档介绍：本科毕业论文(设计)
题目基于单片机的电子智能抢答器
学院电子信息工程学院
专业通信工程
年级 2009级
学号 0102
姓名杨勇
指导教师刘东卓
成绩
2013年5月1日
基于单片机的电子智能抢答器
杨勇
西南大学电子信息工程学院,重庆
摘要:抢答器是一种应用非常广泛的,用于公平裁决的电子设备,它的应用非常广泛,所以逐渐形成了一定的市场。但目前市场上销售的抢答器一般价格较高,而且功能较为单一,显示界面不够友好,不能为使用者带来较好的体验。本设计是采用单片机设计的一款八路多功能的电子抢答器。它除了具有基本的抢答功能外,还包含了由主持人控制的倒计时、为每一位选手计分、加减分数、响铃提示答题时间等功能。它具有结构简单,可靠性好,界面友好的特点。本设计利用STC89C52单片机作为主控制芯片,加外围电路实现抢答和显示功能。利用单片机的定时计数器,使系统能正确计时。用LCD12864液晶作为显示模块,显示时间和选手分数等,用4×3的键盘阵列做输入,蜂鸣器发声提示。
关键词:单片机;抢答器;12864;液晶
Electronic Responder on Single Chip puter
YANG Yong
School of Electronic and Information Engineering, Southwest University, Chongqing ,China
Abstract: Responder is a widely used in enterprises mercial sectors, electronic equipment for the fair decision, because it has a very wide range of applications, and gradually formed a certain market. But sales of resonder on the market at present price is higher, and the function is relatively single, the display interface is not friendly enough, can't bring a better experience for users. This design is designed by single chip puter a eight-way multi-function electronic responder. It in addition to the basic vies to answer first function outside, still contain a countdown, for each player scoring functions. It has a simple structure, good reliability, user-friendly features. This design using the STC89C52 single-chip puter as the main control chip, With peripheral circuit to achieve responder and display functions. Use of the the microcontroller timer counter, so that the system can correct timing, used LCD12864 liquid crystal as a display module, display time and score, made from 4×3 keyboard array input, with a buzzer sound prompt.
Key word: single chip puter; responder; 12864; LCD
目录
第1章引言 1
1
3
第2章总体方案设计 4
4
5
5
6
10
第3章硬件设计 12
12
13
14
15
16
综合PCB板的设计 16
布局的原则 17
布线 17
17