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Chapter 2
Beginning a Design
Creating a Design
Creating a Design from a Netlist File
Note
If PCB constraints are set in the Multisim file, they will also be included in the netlist
file. The file also contains Trace Width Analysis results if you checked the Set Node
Trace Widths Using the Results from This Analysis check box when doing the analysis
in Multisim.
NI Ultiboard User Manual
A design is created automatically when you create a project file. You can
also create a design and assign it to an existing project file. Remember that
a design must always be associated with a project.
Complete the following steps to create a design file:
1.
Choose File»Open and open the project to which the design is to be
added.
2.
Choose File»New Design. The New Design dialog box appears.
3.
Type the design name in the Design Name field.
4.
From the Design Type drop-down list, select PCB Design. Refer to the
Using Mechanical CAD
CAD, for more information on the Mechanical CAD Design file type.
5.
Choose which of the open projects is to contain the design. The Add
to project drop-down list shows only the open projects.
6.
Click OK. The New Design dialog box disappears, and a blank design
with the name that you specified is opened. The Projects tab shows
that the new design is a part of the project file that you specified.
You can create a design based on a netlist file. A netlist contains
information about a given board's nets (the electrical connections between
pins) and parts. Multisim generates a
required to import the schematic into Ultiboard.
The following is an example of net information from a netlist file. A value
of
-1.000000000000
used for that parameter when the file is imported into Ultiboard.
(nets
(net "VCC"
(trackwidth "-1.000000000000")
(trackwidth_max "-1.000000000000")
(trackwidth_min "-1.000000000000")
section of Chapter 10,
.EWNET
indicates that the Ultiboard default value will be
2-2
Using Mechanical
file which has all the details
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