In one of the ucf file I could see these. I could understand the logic element dll0 is constrained to be placed at DCM_X2Y1. I could see there are more such DCM_X#Y#. How can I associate for my chip, means how can I select the # for my chip. Also here dll0/1 is constrained two times. Is it to make absolute/relative paths of them so that approprite software can take.
INST "clkgen0_v_dll0" LOC = DCM_X2Y1; INST "clkgen0_v_dll1" LOC = DCM_X1Y1; INST "clkgen0/xc2v.v/dll0" LOC = DCM_X2Y1; INST "clkgen0/xc2v.v/sd0.dll1" LOC = DCM_X1Y1;
Prakash