To Specify Both Sequencing And Windowing - HP MC68360 User Manual

To specify both sequencing and windowing

• Create your first specification form on the command line. That will enter the
proper format in the Trace Specification Selection dialog box. Obtain that dialog
box by choosing Trace→Trace Spec... You can click on your specification in the
dialog box, edit it if desired, and click OK.
• Using the command line, enter commands as follows:
• Specify a trace sequence that starts with a window and ends with a trigger by
entering:
trace enable <bus_state> disable <bus_state>
find_sequence <bus_state> occurs <#times> [ then
<bus_state> occurs <#times>] trigger <bus_state>
<bus_state> represents a combination of address, data and status expressions that
must be matched to satisfy the trigger or sequence qualifier. <#times> is the
number of times that bus state must occur to satisfy the qualifier.
You can use the sequencing and windowing specifications together to make
specification of complex qualifiers easier. If you use the windowing specification,
the sequence specification is limited to four sequence terms. Also, note that when
you use a windowing specification, you cannot use a restart term with your
sequence specification.
Example
Use the analyzer sequencer to trace states occurring between the start of the
example program and the call to the message interpreter, then trigger after access to
the variable that stores the value of current humidity, but only if it is accessed after
a specific series of events:
trace enable main disable proc_spec find_sequence
update_sys.get_targets then long_aligned
update_sys.write_hdwr trigger after current_humid
Chapter 7: Using the Emulation-Bus Analyzer
Making Complex Trace Measurements
215