User Guide

Chapter 13 Analyzing waveforms
356
Message tracking from the waveform
Trace segments with associated diagnostics are displayed
in the foreground color specified in your PSPICE.INI file.
This color is different from those used for standard state
transitions.
To display explanatory message text
1 Double-click within the tagged region of a trace.
Trace expressions
Traces are referred to by output variable names. Output
variables are similar to the PSpice output variables
specified in the Simulation Settings dialog box for noise,
Monte Carlo, worst-case, transfer function, and Fourier
analyses. However, there are additional alias forms that
are valid for trace expressions. Both forms are discussed
here.
To add traces using output variables
1 From the Trace menu, choose Add Trace to display the
Add Traces dialog box.
2 Construct a trace expression using any combination of
these controls:
•
In the Simulation Output Variables frame, click
output variables.
•
In the Functions or Macros frame, select operators,
functions, constants, or macros.
•
In the Trace Expression text box, type in or edit
output variables, operators, functions, constants,
or macros.
3 If you want to change the name of the trace expression
as it displays in the Probe window, use the following
syntax:
You can display a subset of the available
simulation output variables by selecting or
clearing the variable type check boxes in
the Simulation Output Variables frame.
Variable types not generated by the circuit
simulation are dimmed.
For more information about trace
expressions, see Analog trace
expressions on page 13-364
.
Pspug.book Page 356 Wednesday, November 11, 1998 1:14 PM