FastScan and FlexTest Reference Manual, V8.6_4
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Add Random Weights Command Dictionary
Add Random Weights
Tools Supported: FastScan
Scope: Atpg, Fault, and Good modes
Usage
ADD RAndom Weights percentage_of_1_states primary_input_pin...
Description
Specifies the random pattern weighting factors for primary inputs.
The Add Random Weights command specifies the percentage of primary input
patterns that you want to place at a 1-state during random pattern fault simulation.
You can use the Report Random Weights command to display the values in the
random weight list for specific primary inputs.
If you delete the flattened model, you also delete all members of the random
weight list.
You use this command primarily for simulating Built-In Self Test (BIST)
circuitry.
Arguments
•percentage_of_1_states
A required floating point number between 0.0 and 100.0. FastScan rounds the
number to the nearest whole number. The default value is 50.0.
•primary_input_pin
A required repeatable string that specifies the names of the primary input pins
to which you want to apply the weighting factor.