SONY录像机的串口控制类设计

Design of SONY VCR's COM Port Control Class

SONY录像机只提供RS-422接口,要控制SONY录像机必须采用计算机的COM口及RS-232/RS-422转换器.将SONY录像机的通信协议封装成VCRControl类,实现串口通信协议的模块化设计,并成功应用在多媒体信息管理系统中.

SONY VCR only provide RS-422 interface. In order to Control SONY VCR,we must use computer＇s COM interface and RS-232/RS-422 Converter. In this article SONY VCR＇s RS-422 Protocol was packed into VCRControl Class by module design of serial port protocol and successfully used in Multimedia Info Management System.