warnings with sdf annotation

May 08, 2008 1 Replies

i have used following comand with modelsim simulator



vsim -multisource_delay max -sdfma /tb_top/dut_top=/home/projects/user/top_cmax_wc.usdfs.sdf -sdfnoerro work.tb_top



i am getting following errors # ** Warning: (vsim-SDF-3262) sdfmax /tb_top/dut_top(90022): Failed t find matching specify timing constraint. # ** Warning: (vsim-SDF-3924) sdfmax /tb_top/dut_top: Out of 41689 SD statements, 41689 had null values. # ** Note: (vsim-3587) SDF Backannotation Successfully Completed.



looks like timing is not used during simulation. Please help me in isolating the problem


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