基于PC机并口的高性价比逻辑分析仪的设计  

The Design of Logic Analyzer with High Performance Price Ratio Based On PC's Parallel Port

作　　者：杨燕翔[1] 杨景常[1] 

机构地区：[1]西华大学电气信息学院,四川成都610039

出　　处：《西华大学学报（自然科学版）》2005年第3期72-74,共3页Journal of Xihua University:Natural Science Edition

摘　　要：高昂的价格阻碍了逻辑分析仪在生产和生活中广泛得以应用,数据采集卡和PC机的结合利用PC机强大的硬件和软件资源降低逻辑分析仪的价格,但繁琐的开机箱和插卡的操作仍对不熟悉PC机硬件技术的人员产生了困难。独立于PC机的但通过PC机增强性并口EPP与PC机连接的虚拟逻辑分析仪不但利用PC机强大的硬件和软件资源降低逻辑分析仪的价格,也因为它简便的连接方式为其推广应用提供了条件。The high price of logic analyzer hinders its wide application in our production and daily life. The combination of the data acquisition card and PC reduces the price by PC＇s hardware and software resources. But the complex operation of opening PC＇s carver and inserting the cared also make the technician difficult to use the data acquisition card. The virtual instrument of logic analyzer that is separated from PC and connected with PC via enhanced parallel port can reduce the price by PC＇s hardware and software resource. It provides the possibility for the wide use of logic analyzer due to easy operation in connecting with PC.

关 键 词：逻辑分析仪 增强性并口(EPP) 虚拟仪器 

分 类 号：TM931[电气工程—电力电子与电力传动]