Command Dictionary | Set Abort Limit |
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FlexTest Specifics
The Set Abort Limit command specifies three ways for the test pattern generator to abort a target fault. One way is to set the maximum number of conflicts that the test pattern generator allows before aborting a target fault. The second way is to set the maximum number of test cycles that the generator allows before aborting a target fault. The third way is to set the maximum CPU time (in seconds) that the test pattern generator can run before aborting a target fault.
If any of these limits are too low, the test pattern generator may abort many faults and fault coverage could be too low. However, if the limits are too high, it may take too much time to finish the test generation of a circuit. The invocation defaults are 30 conflicts, 300 test cycles, and 300 seconds. If you enter the command without any options, then the test pattern generator uses the default
Arguments
∙comb_abort_limit (FastScan only)
An required integer that specifies the maximum number of conflicts for each target fault that the test pattern generator allows during the combinational test generation process. The default is 30.
If you set the combinational abort limit to 0 and the test pattern generator can perform clock sequential test generation, the generator does not perform combinational test generation.
∙seq_abort_limit (FastScan only)
An optional integer that specifies the maximum number of conflicts for each target fault that the test pattern generator allows during the clock sequential test generation process. The default is the current comb_abort_limit default.
If you set the sequential abort limit to 0, the test pattern generator does not perform clock sequential test generation.
∙ -Backtrack integer (FlexTest only)
An optional switch and positive,
FastScan and FlexTest Reference Manual, V8.6_4 |
