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| 基于PROTEUS的单片机系统开发与仿真 |
| Microchip System Development and Simulation Based on Proteus |
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| DOI：10.3969/j.issn.1671-5322.2013.01.015 |
| 中文关键词: 单片机AT89C51 8255A 键盘 LCD显示 |
| 英文关键词: AT89C51 8255A keyboard scanning LCD display |
| 基金项目: |
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| 中文摘要: |
| 利用单片机AT89 C51为核心,实现8255A扩展1/O接口,LCD显示,LED静态显示,按键检测,二极管点亮和蜂鸣器蜂鸣,抢答时间计时,确定抢答选手编号等功能,系统巧妙利用锁存器74LS373和译码器74LS138,使电路变得简单实用.设计中使用的编程软件是KEIL软件,对智能抢答器进行proteus软件仿真,仿真结果能够满足应用要求. |
| 英文摘要: |
| Microchip AT89C51 was used as the core of the system which includes many functional modules such as programmable parallel I/O interface 8255A,LCD display,LED static display,keyboard scanning,LED light and buzzer buzz operation,the completion time,deciding player answer No.and so on.Being used artfully,the 74LS373 and 74LS138 make the circuit of the system simple and practical.KEIL and Proteus software were used in the process of designing and simulation results can meet the requirements of practical applications. |
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