Signalscan .trn file format.

Discussion in 'Cadence' started by Yaniv Sapir, Oct 20, 2003.

  1. Yaniv Sapir

    Yaniv Sapir Guest


    I'm looking for a description of the .trn file format, for extraction
    of simulation data without the need for running signalscan. currently
    I'm doing this in "batch" mode usin a .do file for writing a VCD, but
    launching signalscan takes too long.

    BTW, the only possible output I can get is a .trn file.

    Yaniv Sapir, Oct 20, 2003
  2. The trn format is proprietary and not documented if memory serves me
    Why don't you generate the VCD file directly using $dumpvars?

    Petter Gustad, Oct 20, 2003
  3. If you are using NCSim (and I assume you do :) you can create a vcd
    file during simulation with
    ncsim> database -create vcddb -vcd
    ncsim> probe -create ... -database vcddb

    Eyck Jentzsch, Oct 21, 2003
  4. Yaniv Sapir

    Yaniv Sapir Guest


    Because, as mentioned, this is the only possible output I have - I'm
    using a closed system.

    Yaniv Sapir, Oct 21, 2003
  5. What do you mean by closed system? That you don't have write access to
    any of the file systems on the machine?

    Petter Gustad, Oct 21, 2003
  6. API

    No word on the cost but it's probably not cheap.

    Anthony J Bybell, Oct 22, 2003
  7. Yaniv Sapir

    Paul Guest

    I'm amazed the site is still up. Design Acceleration was bought
    by Cadence years ago. Yes, there's an API, but if what the OP
    wants is VCD, then .trn -> Signalscan -> VCD is certainly the
    roundabout way to go.

    Paul, Oct 22, 2003
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