We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 34389

11.4 PlanAhead - "ERROR: [HD-UCFReader 2] Could not create constraint 'CLOCK_DEDICATED_ROUTE' (file = XXX.ucf, line =xx)"


I receive the followingerror when importing a UCF file that contains the CLOCK_DEDICATED_ROUTE constraint:

"ERROR: [HD-UCFReader 2] Could not create constraint 'CLOCK_DEDICATED_ROUTE' (file = xxx.ucf, line = xx)"

Can the PlanAhead software handle the constraint?


The PlanAhead software can handle the CLOCK_DEDICATED_ROUTE constraint. Check the netlist to make sure that the pin associated with this constraint actually exists in the synthesized netlist.

PlanAhead generates this errorif the pin does not exist in the synthesized netlist.

AR# 34389
Date Created 03/10/2010
Last Updated 05/19/2012
Status Active
Type Error Message