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Article: IVI drivers: slower but simpler; interchangeable virtual instrument drivers relieve you from instrument and bus dependency, but they run slower than direct I/O. (PC-Based Test).(input-output )
- Article from:
- Test & Measurement World
- Article date:
- February 1, 2003
- Author:
CopyrightCOPYRIGHT 2003 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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If you've ever replaced an instrument in a test rack with a new or competitive model, you've probably run into programming problems caused by differences in command sets. Similarly, if you've ever wanted to replace an IEEE 488 interface card with a competitor's IEEE 488 card, you found that you needed to rewrite your application code because each card uses different commands. Interchangeable Virtual Instrument (IVI) drivers promise to eliminate those frustrations through a consistent programming interface.
Now that IVI drivers are becoming available, they should make programming and instrument-swapping easier, as they provide a set of standard commands for a ...