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Marking Events
You can designate a search pattern must last for a specified
duration; it can be less than or greater than a selected amount of
time. The command
find greater_than 100 nsec_of X_lower .2 = 1
thru 600
<RETURN>
searches for at least one hundred nanoseconds of a high signal on
bit 2 of X_lower from the cursor to sample number 600. A duration
of less than 20 nanoseconds cannot be specified because of
hardware reset cycles.
The events you search for can be simple, as described to this point,
or complex combinations of signals. The command
find entering X_lower .2 = 1 and X_lower .4
= 0
<RETURN>
specifies a search of trace memory from the cursor to the end to
find a sample where bit 2 of X_lower is going high (true) and bit 4
of X_lower is going low (false). Any combination of signals and
labels, as well as ranges, can be specified.
You can also search for marked events, both single occurrence
(mark_x and mark_o) and multiple occurrence (abcd) marks.
The "find" command locates events in trace memory for interactive
analysis. The Timing Analyzer Softkey Interface has the added
feature of assigning identifiers (marks) to events. Marks can be
assigned from the command line for events in current trace
memory, or automatically after each trace measurement in the post
processing specification. Any marks specified at the command line
are also store for subsequent post processing.
The two single occurrence marks, mark_x and mark_o, are used to
identify the first occurrence of a specified event. These two marks
always exist. Their primary purpose is to define a range of samples.
The multiple occurrence marks (mark_a, mark_b, mark_c, and
mark_d) are used to identify all occurrences of a specified event.
Timing: Using the Analyzer 8-23
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