© National Instruments Corporation
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GPIB-VXI User Manual
Appendix D
Using the CDS-852 Adapter Code Instrument
This appendix contains instructions for installing and using the National Instruments-supplied
Code Instrument (CI) for controlling one or more Colorado Data Systems (CDS) 73A-852
adapter modules.
The 73A-852 is a non-VXI device with communication registers located in A24 space rather
than in A16 space. To communicate with the 852 adapter as a Message-Based device, the 73A-
852 requires special adapter software. The GPIB-VXI performs the Message-Based-to-852
communication translation with a CI.
The GPIB-VXI B.1 firmware includes one 852 Position Independent CI. This CI implements the
configuration and translation functions required to communicate with up to twelve 852 adapter
modules via the GPIB.
Installing the 852 Adapter CI
The 852 adapter CI is installed by configuring the nonvolatile configuration parameters.
Enter the nonvolatile configuration mode as described in Chapter 4. The following menu is
displayed:
GPIB-VXI Nonvolatile Configuration Main Menu
(C) 1989 National Instruments
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1). Read In Nonvolatile Configuration
2). Print Configuration Information
3). Change Configuration Information
4). Set Configuration to Factory Settings
5). Write Back (Save) Changes
6). Quit Configuration
Choice (1-6):
