VHDL Simulator Options

Discussion in 'VHDL' started by Mike Kopp, Sep 22, 2003.

  1. Mike Kopp

    Mike Kopp Guest

    We have three licenses for Mentor formerly Innoveda formerly Synopsys
    formerly ViewLogic Fusion/Speedwave which we use for VHDL simulation.
    Mentor is dropping Fusion/Speedwave since they already have Modelsim.
    Unfortunately they are telling us to throw several thousand dollars at
    them to convert the Fusion/Speedwave licenses to Modelsim licenses.
    If we have to spend money to get a new simulator then that opens up
    the field to other vendors. Does anyone have any recomendations for
    VHDL simulators running on a PC under Windows?

    The FAQ has some info on simulators but some of it appears to be out
    of date.
    Mike Kopp, Sep 22, 2003
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  2. First establish whether you wish to do pure VHDL, or VHDL with "FLI",
    or VHDL - Verilog cosimulation, or perhaps VHDL - Verilog - EDIF
    cosimulation, or VHDL - EDIF cosimulation, or whatever.
    (Note: some models are only available in (compiled) Verilog or EDIF.)

    This may narrow the field somewhat (e.g. Modelsim doesn't do EDIF, but
    Aldec does).

    Also consider that you may wish to run an (ASIC) model from a vendor
    which is only available compiled for certain simulators.
    My experience has been that the ASIC vendor will have a copy of
    Modelsim (and is prepared to compile models using that it), but won't
    have heard of the cheaper tools.

    BTW, the cheapest, fully featured VHDL simulator is (IMO) Simili. It
    doesn't do any cosimulation or FLI though.

    Allan Herriman, Sep 23, 2003
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  3. Mike Kopp

    JK Guest

    I have used Aldec's ActiveHDL for many years and found it to be very easy to
    use, with a very good graphical waveform viewer. You can try it out
    yourself by downloading a 20-day evaluation from their website,

    JK, Sep 23, 2003
  4. Mike Kopp

    FE Guest

    Also consider that you may wish to run an (ASIC) model from a vendor
    nc-sim (nc-verilog, nc-vhdl) is normally supported too. I never used it but
    some people said to me that nc is the fastest simulator.

    FE, Sep 23, 2003
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