Oct 22, 2009 #1 B billylee Junior Member level 1 Joined Sep 10, 2009 Messages 16 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Korea Activity points 1,390 there are many clocks on my design clk0 - clk50 so i want to set_false_path between all clocks set clock_list [list clk0 clk1 .. clk50] foreach each_clock1 $clock_list { foreach each_clock2 $clock_list { if { $each_clock1 != $each_clock2 } { set_false_path -from [get_clock $each_clock1] -to [get_clock $each_clock2] set_false_path -from [get_clock $each_clock2] -to [get_clock $each_clock1] } else { }}} and now, how to unset false_path already defined and how to make some kind of 'set_true_path' between clocks BR
there are many clocks on my design clk0 - clk50 so i want to set_false_path between all clocks set clock_list [list clk0 clk1 .. clk50] foreach each_clock1 $clock_list { foreach each_clock2 $clock_list { if { $each_clock1 != $each_clock2 } { set_false_path -from [get_clock $each_clock1] -to [get_clock $each_clock2] set_false_path -from [get_clock $each_clock2] -to [get_clock $each_clock1] } else { }}} and now, how to unset false_path already defined and how to make some kind of 'set_true_path' between clocks BR
Oct 23, 2009 #2 A arjun1110 Advanced Member level 4 Joined Jul 3, 2008 Messages 101 Helped 27 Reputation 54 Reaction score 16 Trophy points 1,298 Location Bangalore,India Activity points 1,865 Hello Billylee, To undo a set_false_path command, use the reset_path command with similar options. For example, enter dc_shell> set_false_path -setup -from IN2 -to FF12/D dc_shell> reset_path -setup -from IN2 -to FF12/D Regards,
Hello Billylee, To undo a set_false_path command, use the reset_path command with similar options. For example, enter dc_shell> set_false_path -setup -from IN2 -to FF12/D dc_shell> reset_path -setup -from IN2 -to FF12/D Regards,
Oct 23, 2009 #3 B billylee Junior Member level 1 Joined Sep 10, 2009 Messages 16 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Korea Activity points 1,390 thanks a lot I found good answer on this site such as 'A good paper to check out is "Complex Clocking Situations Using PrimeTime". Just google that title. ' and solvenet Key word : set_clock_groups https://solvnet.synopsys.com/retrie...=advSearch&otSearchResultNumber=8&otPageNum=1 or https://solvnet.synopsys.com/retrie...=advSearch&otSearchResultNumber=6&otPageNum=1 have a goodday
thanks a lot I found good answer on this site such as 'A good paper to check out is "Complex Clocking Situations Using PrimeTime". Just google that title. ' and solvenet Key word : set_clock_groups https://solvnet.synopsys.com/retrie...=advSearch&otSearchResultNumber=8&otPageNum=1 or https://solvnet.synopsys.com/retrie...=advSearch&otSearchResultNumber=6&otPageNum=1 have a goodday
Oct 23, 2009 #4 A arjun1110 Advanced Member level 4 Joined Jul 3, 2008 Messages 101 Helped 27 Reputation 54 Reaction score 16 Trophy points 1,298 Location Bangalore,India Activity points 1,865 Thanks for providing useful links.