Mentor v8.6_4 manual Delete Atpg Constraints, ∙ pinpathname

Delete Atpg Constraints Command Dictionary

Delete Atpg Constraints

Tools Supported: FastScan and FlexTest

FastScan Scope: All modes

FlexTest Scope: Atpg, Good, and Fault modes

Prerequisites: You can only delete constraints added with the Add Atpg Constraints command.

Usage

For FastScan

DELete ATpg Constraints {pin_pathname gate_ID# function_name}... -All

For FlexTest

DELete ATpg Constraints {pin_pathname net_pathname gate_ID# function_name}... -All

Description

Removes the state restrictions from the specified objects.

The Delete Atpg Constraints command allows you to delete restrictions on pins defined with the Add Atpg Constraints command. During the ATPG process, the tool adheres to any of the state restrictions which you do not delete.

FastScan Specifics

If you change ATPG constraints, create patterns with those changed constraints, and then compress patterns, FastScan rejects all patterns not meeting the new constraints. This can cause FastScan to reject good patterns created with the old constraints. Therefore, you should use the Delete Atpg Constraints command to remove all ATPG constraints before compressing the pattern set.

Arguments

∙pin_pathname

A repeatable string that specifies the pathname of the pin from which you want to remove any ATPG pin constraints.

2-156 FastScan and FlexTest Reference Manual, V8.6_4