IVI Foundation releases components for 64-bit Vista
-- Test & Measurement World, 7/1/2009 3:29:00 PM
With its release of 64-bit IVI Shared Components and VISA Shared Components, the IVI (Interchangeable Virtual Instrument) Foundation is enabling vendors to provide 64-bit IVI and VISA (virtual instrumentation system architecture) drivers to test and measurement customers. According to the IVI Foundation, the shared components are required by all compliant drivers and ancillary software; they provide common services to drivers and driver clients. The IVI Shared Components are required when using an IVI driver. The VISA Shared Components are used with a VISA library from a specific vendor.
In addition to providing support for 64-bit Vista, the VISA Shared Components also include a VISA Router and a VISA Conflict Resolver, making it easier for users to create I/O systems with hardware and software from multiple vendors. Previously, the IVI Foundation says, users had to specify which VISA was primary and configure all the instrument communication to route through that VISA; in systems with hardware from multiple vendors, it was possible for two different I/O devices to be assigned the same address, resulting in a conflict that would generate a VISA error.
The introduction of the VISA Router means that users no longer have to identify one VISA as primary but can use the VISA of choice. The VISA Conflict Resolver will automatically notify the user if a conflict exists, allowing the user to correct the problem early in the development process.
The release of the 64-bit IVI Shared Components includes a C API (application programming interface) for the IVIConfigServer. The IVI Foundation says that this allows customers who use IVI-C drivers to use native C interfaces instead of COM when using the Config Server.
"The release of these components keeps the IVI standards aligned with evolving industry standards and customer requirements," said Jon Bellin, chairperson of the IVI 64-bit Working Group, in a prepared statement. "64-bit is an emerging requirement and the updates to these components permit IVI vendors to provide 64-bit VISA or IVI solutions."
www.ivifoundation.org/shared_components/Default.aspx
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