Title :
Specifying an IVI class for digital test instrumentation
Author :
Cadogan, Margaret ; Lopes, Teresa
Author_Institution :
Teradyne Inc., Boston, MA, USA
fDate :
7/1/2000 12:00:00 AM
Abstract :
This paper presents an overview of work being done by Teradyne in conjunction with the IVI Foundation to specify an IVI class for digital instrumentation. The Interchangeable Virtual Instruments (IVI) Foundation was formed in August 1997 to define standard specifications for programming common test instrument capabilities. The paper will present the major architectural aspects of digital test instrumentation and how those features can be grouped into classes for the purpose of writing an instrument independent driver. Topics discussed will include derivation of capability classes, class extensions, simulation, and range checking. Examples of how the IVI digital class would apply to the Teradyne M9-Series Digital Test Instrument will be included. Conclusions will summarize the unique attributes of digital test instrumentation, the benefits which can be achieved through standardization, and the tradeoffs associated with utilizing class extensions
Keywords :
application program interfaces; automatic test equipment; automatic test software; device drivers; digital instrumentation; peripheral interfaces; standardisation; virtual instrumentation; ATE; IVI Foundation; IVI class specification; Interchangeable Virtual Instruments; TPS; Teradyne M9-Series instrument; application development environment; architectural aspects; capability classes; class extensions; common test instrument capabilities; digital bus emulation; digital test instrumentation; instrument independent driver; range checking; simulation; standard programming specifications; standardization; Costs; Instruments; Logic testing; Manufacturing; Protection; Standardization; System testing; Test equipment; Timing; Writing;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
