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Chapter 3
Bus Configuration
Table 3-2 describes the characteristics of the MXIbus System Controller option available under
the Bus Configuration menu.
Characteristic
MXIbus System
Controller
Exiting vxitedit and Reinitializing the Hardware
To exit
, type
vxitedit
information, the program prompts you to save your changes before exiting the menu. Saving the
configuration information updates the configuration files
to reinitialize the hardware according to the new settings.
vxiinit
If you changed any of the software configuration settings from the default settings, record the
new settings on the VXI-SB2020 Hardware and Software Configuration Form in Appendix C.
Developing Your Application Program
After you have verified that the driver software has been installed successfully, you can proceed
with development of your VXI application software.
Use the VXI Text Interactive Control (
through commands you enter at the keyboard. This feature helps you learn how to communicate
with devices, troubleshoot problems, and develop your application.
The
command set includes the same capability of NI-VXI function calls in addition to
victext
auxiliary commands that are unique to
Serial commands to devices from the keyboard and to display data received from devices on the
screen. After each function executes,
© National Instruments Corporation
Table 3-2. Bus Configuration Characteristics
Description
A MXIbus link must have a single device that
is responsible for MXIbus interrupt and bus
arbitration as well as bus timeouts. This device
is referred to as the MXIbus System Controller
and is always the first device in the MXIbus
daisy-chain. The SB-MXI is always designated
as the MXIbus System Controller when used in
this kit and should not be changed.
0 = Not MXIbus System Controller
1 = MXIbus System Controller
when the main menu is displayed. If you have changed any
exit
victext
victext
victext
NI-VXI Software Installation and Configuration
vxila.cfg
) program to communicate with VXI devices
. You can use this utility to send data and Word
displays the device's response and the status.
3-11
VXI-SB2020 and NI-VXI for Solaris
Default Value
1
and
. Run
vxibus.cfg
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