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use display trace to display the contents of the trace memory. If a previous
trace list is on screen, the current trace automatically updates the display. If
the trace memory contents exceed the page size of the display, the <NEXT>,
<PREV>, <Up arrow>, or <Down arrow> keys may be used to display all the
trace memory contents. You also can press <CTRL>f and <CTRL>g to move
the display left and right.
You can set up trigger and storage qualifications using the specify trace
command. The analyzers will begin tracing when a cmb_execute command
executes, which causes an EXECUTE signal on the Coordinated
Measurement Bus.
The analyzer will trace any state by default.
The parameters are as follows:
again
This option repeats the previous trace measurement. It also begins a trace
measurement with a newly loaded trace specification. (Using trace without
the again parameter will start a trace with the default specification rather
than the loaded specification.)
anything
This causes the analyzer to capture any type of information.
arm_trig2
This option allows you to specify the external trigger as a trace qualifier, for
coordinating measurements between multiple HP 64700s, or an HP 64700
and another instrument.
Before arm_trig2 can appear as an option, you must modify the emulation
configuration interactive measurement specification. When doing this, you
must specify that either BNC or CMBT drive trig2, and that the analyzer
receive trig2. See the chapter on "Making Coordinated Measurements" for
more information.
break_on_trigger
This stops target system program execution when the trigger is found. The
emulator begins execution in the emulation monitor. When using this option,
the on_halt option cannot be included in the command.
modify_command
This recalls the last trace command that was executed.
on_halt
When using this option, the analyzer will continue to capture states until the
emulation processor halts or until a stop_trace command is executed. When
this option is used, the break_on_trigger, repetitively, and TRIGGER options
cannot be included in the command.
only
This option allows you to qualify the states that are stored, as defined by
QUALIFIER.
prestore
This option instructs the analyzer to save specific states that occur prior to
states that are stored (as specified with the "only" option).
QUALIFIER
This determines which of the traced states will be stored or prestored in the
trace memory for display upon completion of the trace. Events can be
Emulator/Analyzer Interface Commands
trace
437
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