Chapter 5
Analog Output
©
National Instruments Corporation
5-7
Figure 5-4.
AO Pause Trigger Example
If yo
u
are
u
sing any signal as the so
u
rce of yo
u
r sample clock, the
generation res
u
mes as soon as AO Pa
u
se Trigger is deasserted and another
edge of the sample clock is received, as shown in Fig
u
re 5-5.
Figure 5-5.
AO Pause Trigger with Other Signal Source
Using a Digital Source
To
u
se AO Pa
u
se Trigger, specify a so
u
rce and a polarity. The so
u
rce can
be any inp
u
t PFI signal.
The so
u
rce also can be one of several other internal signals on yo
u
r
USB-621
x
device. Refer to
Device Routing in MAX
in the
NI-DAQmx Help
or the
LabVIEW Help
in version 8.0 or later for more information.
Yo
u
also can specify whether the samples are pa
u
sed when AO Pa
u
se
Trigger is at a logic high or low level.
AO P
aus
e Trigger
AO
Sa
mple Clock Time
bas
e
AO
Sa
mple Clock
0
4
3
2
1
0
4
3
Progr
a
mm
ab
le Clock Divider Co
u
nt
2
1
0
The Progr
a
mm
ab
le Clock Divider
ignore
s
AO
Sa
mple Clock Time
bas
e
when AO P
aus
e Trigger i
s
tr
u
e.
P
aus
e Trigger
Sa
mple Clock
