Mentor v8.6_4 User Manual

Page of 831
FastScan and FlexTest Reference Manual, V8.6_4
2-234
Load Faults
Command Dictionary
Load Faults
Tools Supported: FastScan and FlexTest
Scope: Atpg, Fault, and Good modes
Usage
For FastScan
LOAd FAults filename [-Restore | -Delete | -DELETE_Equivalent | -RETain]
For FlexTest
LOAd FAults filename [-Restore | -Delete]
Description
Updates the current fault population to include or exclude the faults contained in
the specified fault file.
The Load Faults command affects the current fault population by either adding or
removing faults which you specify in an external fault file. Because you must
identify the faults before performing an ATPG or Fault simulation, this command
is useful when you have a large number of faults to identify.
The format of the fault file data can be either in a three, four, or five column
standard format. Regardless of the format, the Load Faults command uses only the
information in the first, second, and third columns. The file follows the format
illustrated below:
stuck_at fault_class pin_pathname (cell_name) (net_name)
stuck_at
The first column must be the stuck-at value.
fault_class
The second column must be the fault class value, but only if you use the
-Restore option.