高速RS-422串行通信接口板设计  

Design of high speed RS-422 serial communication interface board

作　　者：李晓建[1] 余维荣[1] 张霞[1] 王向东[1] 吴金才[1] 

机构地区：[1]第二炮兵装备研究院,北京100085

出　　处：《微型机与应用》2012年第6期54-56,共3页Microcomputer & Its Applications

摘　　要：设计了一种高速RS-422串行通信接口板,采用通用的异步串行通信控制器,以嵌入式PC为控制核心,以双端口RAM作为数据缓存,并对双端口RAM的程序设计进行了详细说明。应用结果表明,该接口板通信速率高,数据缓存能力强,使用简单。The high speed RS-422 serial communication interface board is designed by using the universal asynchronous serial communication contrler. The embedded PC is used as control center. The dual-port RAM is used as data buffer and its control program is explicated in detail. The high communicate speed, strong data storage ability and simple access are proved by application.

关 键 词：串行通信 嵌入式PC 高速 双端口RAM 

分 类 号：TP334.7[自动化与计算机技术—计算机系统结构]