when u trace the clock input for S1 violation and when it end up in black box what is to be done
stormwolf said:what is you black box , a memory or some other analog module? If a memory , the memory can be control by clock , You may need to use
add write control, add control to add control signal .
stormwolf said:add black box -core corex -pin pin1 X,
add pin constraint /top/core/../pin CX
stormwolf said:The TSTCLK is connect to inout pin of black box?
If so , default dft tools auto constraint all output pin of black box to X.
And as you said , i think the black box maybe a PLL,
so the behaiver model may need modify.