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RTL_compiler SDF

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Hi,

I need to simulate a gate-level netlist from RC 4.2.2
Can anybody knows how to generate an
sdf file from RC?

I've used the "write_sdf" command but the program says
that it's obsolete and doesn't accept any option.
Moreover the RC documentation doesn't tell
anything about "write_sdf"

Thank you.


Originally posted in cdnusers.org by giohdl
Parents

  •  Hi EngHan,

    I read your comment saying that you solved some SDF annotation problems using an Encounter patch. Kindly share the solution if the problem was same as below:

     When I try to do an sdf annotation in Cadence I get lots of warnings like:

    ncelab: *W,SDFGENNF: Generic "TPD_ip1_op_posedge" not found in component "test.dff_1.g16:" <./gen_test1.sdf, line 20>.

    The generic "TPD_ip1_op" is present in the library vhdl model file but the _posedge generic is not present.
     

    Also, I use the write_sdf command in Encounter after P&R and CTS to generate the SDF file, is that correct?

Reply

  •  Hi EngHan,

    I read your comment saying that you solved some SDF annotation problems using an Encounter patch. Kindly share the solution if the problem was same as below:

     When I try to do an sdf annotation in Cadence I get lots of warnings like:

    ncelab: *W,SDFGENNF: Generic "TPD_ip1_op_posedge" not found in component "test.dff_1.g16:" <./gen_test1.sdf, line 20>.

    The generic "TPD_ip1_op" is present in the library vhdl model file but the _posedge generic is not present.
     

    Also, I use the write_sdf command in Encounter after P&R and CTS to generate the SDF file, is that correct?

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