National Instruments VXI-USB User Manual
Chapter 3
Developing Your Application
© National Instruments Corporation
3-5
Figure 3-3. Successful viIn Access in the VISAIC Register I/O Tab (This Window May
Look Slightly Different for LabVIEW Users)
If the data value ends in
FF6
, you have successfully read the National
Instruments manufacturer ID from your VXI/VME controller’s ID register.
You may now want to read the configuration registers from other VXI
devices in your system by opening the devices in VISAIC. Try reading a
register from each device listed in the MAX view of your VXI system. This
way, you can verify that your VXI controller can access each device in your
VXI system successfully. You can also access VXI and VME devices
configured in A16, A24, or A32 space by opening the VXI MEMACC
resource, which is VISA’s representation of VXI memory. For more
information about VISAIC operations and commands, refer to the online
help in the Help menu and the context-sensitive help (such as What’s
This?), available by right-clicking in any panel.
You may now want to read the configuration registers from other VXI
devices in your system by opening the devices in VISAIC. Try reading a
register from each device listed in the MAX view of your VXI system. This
way, you can verify that your VXI controller can access each device in your
VXI system successfully. You can also access VXI and VME devices
configured in A16, A24, or A32 space by opening the VXI MEMACC
resource, which is VISA’s representation of VXI memory. For more
information about VISAIC operations and commands, refer to the online
help in the Help menu and the context-sensitive help (such as What’s
This?), available by right-clicking in any panel.
Programming for VXI
NI-VISA and the NI-VXI API are the two National Instruments
programming interfaces for accessing your VXI/VME instruments. With
NI-VXI 3.0 or later, NI-VISA is the native API for communicating with a
VXI or VME system, and NI recommends using it for all new applications.
programming interfaces for accessing your VXI/VME instruments. With
NI-VXI 3.0 or later, NI-VISA is the native API for communicating with a
VXI or VME system, and NI recommends using it for all new applications.