User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-38 ni.com
Figure 3-14. Analog Output with Software Updates
The first modification you make is to enable later internal updates
when you call
AO_Configure
. The next change, which follows the
AO_VWrite
step, is the decision to wait or to output the voltage. If you
want the voltage to be output, your application must call
AO_Update
to
write out the voltage. The rest of the flowchart is identical to Figure 3-13.
Note
Implement buffered analog output using the Waveform Generation (
WFM
) functions.
Update?
AO_VWrite
AO_Update
Done outputting data?
Output voltage from board.
Wait until you are ready to
output voltage.
Output voltage to board.
Account for changes in the
jumper settings. Enable
software voltage update.
No
No
Yes
Yes
AO_Configure