as unconstrained input port paths There are no unconstrained clocks reported. It seems the part between the ports clk1... and the pll input is missing, although the documentation says 'you do not have to generate the base clock on the input clock pin of the pll' ...
On Timing Analyzer, Report Unconstrained Paths and go to Setup/Hold Analysis>Unconstrained Input Ports. This report should explain what's missing. Also, for the LVDS signal, I think the IP has generated SDC constraints so it doesn't appear as unconstrained input port. ...
overflow_reg之间是存在时序关系的,但是由于并没有对应的时序约束,所以这条timing path是unconstrained.因此,解决方案是手动添加输入port en与clock 之间的时序约束关系,使用set_input_delay对en的setup和hold time进行时序约束;可参照以下命令: set_input_delay -clock clk -max 0.5 [get_ports en] set_inputdelay...
[ find port [list $my_clock_pin] ] #if { $find_clock != [list] } { # set clk_name $my_clock_pin # create_clock -period $my_period $clk_name #} else { # set clk_name vclk # create_clock -period $my_period -name $clk_name #} #set_input_delay $my_input_delay_ns -...
TimeQuest reports that there is an unconstrained path in its diagnostic report unconstrained Paths. It says that there is 1 unconstrained input port
Are you sure about your set_false_path command which cuts all the paths between the PLL input & output clock? For set_output_delay you can use ADDR [*], etc to be more comfort :):) What is your FPGA part & Quartus version? Translate 0 Kudos Copy link Reply Altera_Forum Hon...
as unconstrained input port paths There are no unconstrained clocks reported. It seems the part between the ports clk1... and the pll input is missing, although the documentation says 'you do not have to generate the base clock on the input clock pin of the pll' in t...
as unconstrained input port paths There are no unconstrained clocks reported. It seems the part between the ports clk1... and the pll input is missing, although the documentation says 'you do not have to generate the base clock on the input clock pin of the pll' in t...
On Timing Analyzer, Report Unconstrained Paths and go to Setup/Hold Analysis>Unconstrained Input Ports. This report should explain what's missing. Also, for the LVDS signal, I think the IP has generated SDC constraints so it doesn't appear as unconstrained input port. ...
On Timing Analyzer, Report Unconstrained Paths and go to Setup/Hold Analysis>Unconstrained Input Ports. This report should explain what's missing. Also, for the LVDS signal, I think the IP has generated SDC constraints so it doesn't appear as unconstrained input port. You can c...