User manual

Chapter 7 VXIplug&play for the VXI-MXI-2
© National Instruments Corporation 7-3 VXI-MXI-2 User Manual
Click on the OK button to exit the soft front panel and save to the
instrument’s onboard EEPROM any changes you have made.
Alternatively, you can use the Apply button to save your changes to the
EEPROM without exiting the soft front panel, or the Cancel button
will exit the panel without saving any changes. Changes to an
instrument’s settings are also saved to its EEPROM when you switch to
a different instrument using the Instrument select control in the upper-
left corner of the soft front panel.
The About button brings up an information display that shows the
revision of the soft front panel.
Board Settings
The Board settings group contains controls that affect the VXI-MXI-2
as a whole. Access this group by setting the View control to Board
Settings as shown in Figure 7-1.
Logical Address Select and Logical Address
You can set or modify the logical address of the VXI-MXI-2 either
within the VXI-MXI-2 soft front panel itself or with the onboard
8-position DIP switch. To select the configuration method you prefer,
use the Logical Address Select control.
The default selection is the Switch option. Notice that the Logical
Address control is inaccessible, since it would have no effect. In
this option you need to change the hardware switch setting on the
VXI-MXI-2 module if you want to change the logical address.
If you select Software for this option, you can then use the Logical
Address control to select a logical address within the range of 1 to 254.
If you use this option, the hardware switch setting has no effect and you
must use the VXI-MXI-2 soft front panel to change the logical address.
Address Space and Requested Memory
The VXI-MXI-2 requires at least 16 KB of address space in A24 space
or at least 64 KB in A32 space. Use the Address Space control to
select whether you want to use A24 space or A32 space. Use the
Requested Memory control to set the amount of memory space that
the VXI-MXI-2 will require. You can select up to 8 MB in A24 space
and up to 2 GB in A32 space.