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most of the ATPG tools are cycle based and not event based to my knowledge . So, they consider pos-edge to pos-edge as 1 cycle . So, -ve followed by +ve will be considered as 2 cycles . +ve followed by -ve is considered as single cycle .
request anyone who thinks my understanding is wrong to...
I have a design in which there are no scan flops.
I have generated the serial and parallel patterns in FASTSCAN(mentor tool)
On simulating this, the serial patterns pass while the parallel patterns fail.
I feel that, since there are no scan flops in the design, the tool is not able to force...