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Markers Patterns
When the markers are set to patterns,
you
can specify the patterns
on
which the logic analyzer will place the markers. You can also
specify
how many occurrences of each marker pattern the logic analyzer looks
for. This use of the markers allows you to find time between specific
patterns in the acquired data.
HP
16528/16538
Front-Panel Reference
[DRAM
TEST
I-
Tinlng
narkers
1 Patterns
J
Accumulate
[rj
Time/Div
[
200 ns ]
Mavef ems
Specify
Patterns
Find
x-pattern
71
from
Trigger
Find
o-pattern
L-1
from
[
Trigger
1
Delay
1
0
SJ
Time X to Cl
0
s
. .
Figure
19-7.
Markers Patterns
Patterns for each marker (X and 0) can be specified. Patterns can be
specified for both markers in each label. The logic analyzer searches
for the logical "and" of patterns for all labels even though only one label
can be displayed at a time. You can also specify whether the marker is
placed on the pattern at the beginning of its occurrence (entering) or at
the end of its occurrence (leaving) as shown in figure 19-8.
tlarker
Patterns
Label
I?j
Base
1
Hexadec ime
11
(Done3
X tlarker
)
I]
pattern
-1
0 f"larker
> 1 entering
1 pattern
lxXXXXXXX1
Stop
meesurement
1 Lx-0
1 Less
than
] I]
Store
exception
to
disk:
[on]
F i 1 e name 1 EXCEPTION
File
description
11
Figure
19-8.
Marker Patterns Pop-up menu
Stop Measurement
Another feature of markers set to patterns is the Stop measurement
when Time X-O
. The options are: Less than, Greater than, In
range, Not in range
With this feature you can use the logic analyzer to look for a specified
time or range of time between the marked patterns and have it stop
acquiring data when it sees this time between markers. (The X marker
must precede the 0 marker.)
Timing Waveforms Menu
19-5
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