Chapter 3
Configuration and Default Settings
VXIpc 770/870B Series User Manual
3-16
ni.com
Note
Whenever you open the hardware configuration, MAX reports that the VXIpc is
in
Current Board Configuration
. This means that if you select one of the common
configurations such as
LA 5 Message Based
and save the configuration, the next time you
open MAX, it will not report that the
Current Board Configuration
is
LA 5 Message
Based
as you might expect. If you have used a common configuration setting, closed and
reopened MAX, and want to verify the current VXIpc configuration, you must check each
tab for the current controller configuration.
In MAX, you can load a VXIpc configuration from a file or save the current
configuration for future use. You may execute this option by selecting one
of the options in the
General
tab in the MAX hardware configuration.
You can use the
Device
tab to set some basic VXI properties of your device.
Table 3-3 lists the default settings for this tab on your VXIpc controller.
You can use the
Shared Memory
tab to configure the amount of memory
you make available to the VXI bus. Table 3-4 lists the default settings for
this tab on your VXIpc controller. The default setting on the controller is to
share no system RAM. After you select one of the shared RAM options,
you can select the amount of RAM you want to share.
Table 3-2.
VXIpc MAX General Tab Settings
Menu Selection
Explanation
Current Board Configuration
(Default) Last configuration
loaded
LA 5 Message Based
Sets controller to message-based
device at logical address 5
LA 5 Register Based, Shared RAM
Sets controller to register-based
device at logical address 5,
sharing RAM
Share 128 KB of Memory
Shares 128 KB of RAM
Table 3-3.
VXIpc MAX Device Tab Default Settings
Setting
Default Value
Logical Address
0
Device Class
Message Based
Interrupt Configuration: Number of Handlers
1
