Chapter 2
NI 5450 Overview
©
National Instruments Corporation
2-45
NI PXIe-5450 User Manual
The following tables list the types of information that are used to make up
the instructions that are saved to memory. You can store the instructions for
multiple sequences to the onboard memory ahead of time and generate
them later, allowing for quick reconfiguration times between tests. There
are two example sequences. Sequence 1 represents the instructions for a
sequence containing a maximum number of segments
k
. Sequence
m
is an
example of a sequence containing 8 segments. Each sequence downloads
different waveforms to the onboard memory, and uses various looping and
Marker placement options to construct the resulting waveform.
Sequence 1: Burst Trigger Mode
Sequence Segment
Waveform
Number of Loops
Marker Placement
1
1
1
0
2
5
14
100
3
17
1
–1
4
12
18,045
10,000
5
12
64,000
12
6
34
64,000
0
.........
k
15
20
10,000
Sequence
m
: Stepped Trigger Mode
Sequence Segment
Waveform
Number of Loops
Marker Placement
1
1
1
0
2
2
340
4
3
35
1
–1
4
2
10
0
5
340
5
10,000
6
34
64,000
0
7
20,000
1,000,000
13
8
1
1
0
