基于PC机的虚拟逻辑分析仪的设计

Design of Virtual Logic Analyzer Based on PC

逻辑分析仪的测试对象是数字系统中的数字信息,其结构复杂,成本较高。所述的是基于虚拟仪器概念的虚拟逻辑分析仪的设计思想和方法,由于部分硬件功能软化而使硬件电路大为简化,从而降低了仪器成本,提高了逻辑分析仪的可靠性和性能。重点阐述了基于PC机的虚拟逻辑分析仪的硬件电路设计和软件设计部分。

Logic Analyzer is used for testing the digital information in the digital system,whose structure is complex and the cost is higher.Introduced the designing ideas and methods of Virtual Logic Analyzer based on the conception of Virtual Instrument.The circuit of hardware was simplified,because the partial function of hardware was intenerated.In this way,it lowered the cost of the instrument and improved the reliability and performance of the Logic Analyzer.Mainly expatiated the design of the hardware circuit and the software in the Virtual Logic Analyzer based on PC.