Forum Discussion
Altera_Forum
Honored Contributor
14 years agohow to calculate the board clock skew
hi, I try to calculate delay value for set_input_delay constraint using the rule below: input delay (max) = Board Delay (max) - Board clock skew (min) + Tco(max) = Tdata_PCB(max) + Tco(max)...
Altera_Forum
Honored Contributor
14 years agowell bro i too am struggling with the same idea..
but i am taking set_input_delay max as 70% of clock period and ouput delay max as 30% of clock.. in worst case you can use 60-40 ratio.. this is not the exact logic...but this is what i know...:(