一种多功能单片机接口实验板

Multiple-function Experimental Board with Single-chip Microcomputer Interface

自制设计了一种 MCS- 51单片机接口实验板 .利用它可以做存储器扩展、并行 I/O扩展、串行通讯、A/D转换、D/A转换、键盘、LED显示、打印等多种单片机接口实验 ,弥补了传统的单板单用的不足 .给出了其硬件组成及各种接口说明 。

A kind of interface experimental board with MCS-5 1single-chip microcomputer is designed. All kinds of interface experiments,for example,memory expansion,parallel I/ O expansion,serial communication,A/ D conversion,D/ A conversion,keyboard,LED show,printer and so on,may be done by using it.It makes up for the insufficiency of traditional single functional board.The hardware components and explaination of different interface are given.The flow charts of the practical main program and interface subprogram are listed.