0 Replies Latest reply on Jun 23, 2010 7:27 AM by eng.marwa_ahmed

    calibre lvs converting verilog to spice



      i'm in an ASIC design project .. i use synopsys for synthesis, first encounter for placement and routing , and calibre for drc/lvs

      i have some questions about calibre :

      what is the importance of the stream_in file?

      how can i add the .lef format  (technology file of tsmc090 used in the first encounter run )?

      how can i add slow.db ( database file used in synopsys ) ?

      must i add them ?

      or only the svrf rule file is the important one ?


      for the lvs run :

      the verilog file output from the first encounter is what i have ! is it the correct input ?

      in this case i must convert it to spice by v2lvs ?

      i tried to convert it using the command :

      v2lvs -v <verilog.v>  -o   <netlist_extracted.spi>    //words between <> is an arbitrary name only

      but i had this error :

      Creating Design Database ...
      Converting Design ...
      Warning: no module declaration for module ADDHXL first encountered in module IFFT_PTS_1_DW01_inc_6_0_0

      ....same warning for all cells .


      how can i correct this plz ? how can i have a correct lvs run ?


      thx for helping me