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Generate a NetClass report in CM

Hi All,

I was wondering if there was a way to generate a report with all the nets in a design and their associated physical and spacing netclasses. I want to make sure that all of the nets in my design are in a netclass.

Thanks in advance.

djhutchi over 14 years ago

Below is the report definition file that I build in Tools>Report:

# This is an extract command file

# generated by the Extract UI.

#

NET

NET_NAME

NET_PHYSICAL_CONSTRAINT_SET

NET_SPACING_CONSTRAINT_SET

END

Below is an example of the resulting output:

P:\training>cat net_phy_spa.txt

Allegro Report

P:/training/return_path6_164.brd

Tue Aug 02 15:06:00 2011

NET_NAME,NET_PHYSICAL_CONSTRAINT_SET,NET_SPACING_CONSTRAINT_SET

SN4,PCS1,SCS1

DP5,,

SN2,,

SN1,,

SN3,,

DP6_N,PCS1,SCS1

DP5_N,,

DP6,PCS1,SCS1

DP4_N,,

The empty fields show that those reference the ‘DEFAULT’ constraint sets
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steve over 14 years ago

Tools - Reports - Click on New/Edit then select the properties you want to create a report for, save then in the main reports window you new report will be there, run this on the design....
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pdxg8r over 14 years ago

Thanks for the info! I tried this, and I got the table, but none of the NET_PHYSICAL_CONSTRAINT_SET and NET_SPACING_CONSTRAINT_SET had any of my netclass names. If I look in constraint manager, I see that the Nets are assigned to Netclasses, so I don't know what's going on. Any ideas?
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Helen over 14 years ago

If ALL nets are assigned to particular NCls you will NOT see any "Net" objects in "Type" column in CM.
All nets in design will be listed under one of "NCls" . And you can see number of nets in each NetClass like POWER(10) in "Objects" column
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fxffxf over 14 years ago

A NetClass (NCls in Constraint Manager) is a group.
Similar capability exists for busses, diffpairs, etc. In the ExtractUI builder these entries are located under the Misc tab
So you want an extracta view that looks something like this:
NET
NET_NAME_SORT
NETCLASS_GRP_NAME
NET_NAME
EN
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