Honored ContributorHi:
I have known the function of set_max_fanout,but I don't understand how to confirm the parameter which following set_max_fanout.please help me! thank you!
Honored ContributorThat's the max fanout value. So if a register has a fanout of 35, and you do that assignment, you'll end up with 5 copies, 4 that have a fanout of 8 and 1 that has a fanout of 3. The following might help:
http://www.alterawiki.com/wiki/register_duplication_for_timing_closureHonored Contributoris the parameter confirmed acconding to the target library?
Honored ContributorAre you talking about an ASIC?
Max fanout is your constraint that you would manually enter to help timing. You can enter whatever value you want. The main purpose is to help the fitter place logic closer together, and hence achieve better timing.Honored Contributorok,I will look up some data.thanks for your response!
