Appendix G
Common Questions
©
National Instruments
G-3
VXI-MXI-Express Series User Manual
What can I do to make sure that my system is up and running?
The fastest method for testing the system is to run Resman. This program
attempts to access memory in the upper A16 address space of each device
in the system. If Resman does not report any problems, the
NI VXI-8360T/LT controller communication system is operational. To test
individual devices, you can use the VIC or VISAIC program to
interactively issue NI-VXI functions or NI-VISA operations, respectively.
You can use
viIn()
and
viOut()
with the NI-VISA API (or
VXIin()
or
VXIinReg()
and
VXIout()
or
VXIoutReg()
with the NI-VXI API) to
test register-based devices by programming their registers. If you have
any message-based devices, you can send and receive messages with the
viRead()
and
viWrite()
operations in the NI-VISA API (or
WSrd()
and
WSwrt()
functions in the NI-VXI API). Notice that
VXIinReg()
and
VXIoutReg()
are for VXI devices only, but you can use
VXIin()
and
VXIout()
for both VXI and VME. Finally, if you are using LabVIEW or
LabWindows/CVI and you have instrument drivers for the devices in your
chassis, you can use the interactive features of these programs to quickly
test the functionality of the devices.
What is the accuracy of the CLK10 signal?
The CLK10 generated by the NI VXI-8360T/LT controller is ±100 ppm per
the VXI specification. To use a more accurate reference for CLK10,
connect the signal to the controller through the EXT CLK SMB input on
the front panel.
