User Guide

Things to watch for
79
Things to watch for
This section includes troubleshooting tips for some of the
most common reasons your circuit design may not netlist
or simulate.
Unmodeled parts
If you see messages like this in the PSpice Simulation
Output window,
Warning: Part part_name has no simulation
model.
then you may have done one of the following things:
• Placed a part from the OrCAD libraries that is not
available for simulation (used only for board layout).
• Placed a custom part that has been incompletely
defined for simulation.
Do this if the part in question is from the OrCAD
libraries
• Replace the part with an equivalent part from one of
the libraries listed in the tables below.
• Make sure that you can simulate the part by checking
the following:
• That it has a PSPICETEMPLATE property and that
its value is non-blank.
•
That it has an Implementation Type = PSpice
MODEL property and that its Implementation
property is non-blank.
For a roa
d
map to ot
h
er common
l
y
encountered problems and solutions, see
When netlisting fails or the
simulation does not start on
page 3-58
.
T
h
e
l
i
b
raries
l
iste
d
in t
h
e ta
bl
es t
h
at
f
o
ll
ow
all contain parts that you can simulate.
Some files also contain parts that you can
only use for board layout. That’s why you
need to check the Pspice TEMPLATE
property if you are unsure or still getting
warnings when you try to simulate your
circuit.
Pspug.book Page 79 Wednesday, November 11, 1998 1:14 PM