FastScan and FlexTest Reference Manual, V8.6_4
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Set Atpg Compression Command Dictionary
•-Limit number
An optional switch and integer pair that specifies the maximum number of
faults that the test pattern generator will unsuccessfully attempt to merge with
the target fault pattern. The -Limit switch is used by the combinational
compression algorithm only. Once the test pattern generator reaches the
maximum number of unsuccessful mergers, the generator moves on to the next
test pattern. The default is 200.
•-NOVerbose
An optional switch that specifies for the ATPG to not display the data for each
pattern that FastScan creates. This is the default.
•-Verbose
An optional switch that specifies for the ATPG to display the data for each
pattern that FastScan creates. The information includes the parallel pattern
number, the number of merged patterns, the number of unsuccessful attempts,
and the remaining number of faults. The fault numbers for this message are in
terms of collapsed faults.
•-Abort_limit number
An optional switch and integer pair that specifies the maximum number of
conflicts that the test pattern generator allows for subsequent merged faults
using the same pattern before aborting a fault. The default abort limit is 10.
This switch is similar to the Set Abort Limit command, however, in this
instance, the Set Abort Limit command limits the conflicts allowed when
determining the first fault for a given pattern. This switch, on the other hand,
affects the limit of conflicts allowed for subsequent merged faults for the same
pattern.
•-CONsecutive_fails number
An optional switch and integer pair that specifies the maximum number of
consecutive faults that the test pattern generator will unsuccessfully attempt to
merge with the target fault pattern. The -Consecutive_fails switch is used by
the sequential compression algorithm only. Once the test pattern generator
reaches the maximum number of consecutive unsuccessful mergers, the
generator moves on to the next test pattern. You can increase compression
effort by increasing number. The default is 40.