Answers Database Virtex CLKDLL timing simulation in MTI: WARNING[1]:No default binding for component : "x_clkdll". ( Generic "tperiod_clkin" is not on the entity) Record #7792 Product Family: Software Product Line: Merged Core Product Part: simprims Problem Title: Virtex CLKDLL timing simulation in MTI: WARNING[1]:No default binding for component : "x_clkdll". ( Generic "tperiod_clkin" is not on the entity) Problem Description: Keyword : clkdll, simprim, modeltech, simulation, service pack 1 Urgency : hot General Description : When updating Alliance or Foundation with Service Pack 1, the simprim models file (simprim_vital.vhd) was changed. The x_clkdll model had a parameter changed from tperiod_clkin to tperiod_clkin_posedge. This change caused errors in Modelsim simulation when that simprim library is compiled. The warning given is : " # WARNING[1]: ../mti/temp.vhd(36): No default binding for component: "x_clkdll". (Generic "tperiod_clkin" is not on the entity)" The simulation will not function correctly if this warning is ignored. Solution 1: One workaround is to edit the simprim_vital.vhd file so that the cell X_CLKDLL parameter is tperiod_CLKIN Rather than tperiod_CLKIN_POSEDGE Then recompile. This problem is also fixed in Service pack 2. End of Record #7792 - Last Modified: 10/05/99 11:19

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