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XRUN: Dump all internal signals

bimartin

Hello everyone. I'm using XRUN to compile/elab and simulate a design with a single command:

xrun <opts>

This is a basic SystemVerilog design, I've also added the following statements to the top module

$recordfile("output.trn");
$recordvars();

This, as far as I know, should dump the database to be later viewed with SimVision.

I'm able to see most of the signals, but there are some signals that are not probed and I don't know how to force dumping/probing of all available signals.
If I dump a .VCD it shows all signals but then I lose abilities like proper Enumerate printing, which I need.

Can anyone please help me out? Thanks


 

Parents
  • StephenH

    Generally we prefer the Tcl "probe" command rather than embedding probe commands via system tasks like $recordvars, as you get more control with Tcl and it's easier to turn the probing on/off.

    I don't think the system tasks have any way to control the inclusion of signals that are excluded by default, again Tcl is the preferred route as it has options to control the size of arrays and vectors that get probed.

Reply
  • StephenH

    Generally we prefer the Tcl "probe" command rather than embedding probe commands via system tasks like $recordvars, as you get more control with Tcl and it's easier to turn the probing on/off.

    I don't think the system tasks have any way to control the inclusion of signals that are excluded by default, again Tcl is the preferred route as it has options to control the size of arrays and vectors that get probed.

Children
  • bimartin
    in reply to StephenH

    Thanks a lot for your feedback Stephen! How should I include these TCL commands in the xrun commandline? I think I can execute these probe commands if I use interactive/GUI mode, but my idea is to compile/elaborate/simulate/generate waves in a single command. I think -input is the option that allows to include a TCL script, but I don't know what database should I specify etc...

  • tpylant
    in reply to bimartin

    Yes, use the "-input" argument to xrun to run the TCL code. Here is a simple example:

    % cat probes.tcl
    database -open waves -into waves.shm -event -default
    probe -create test -depth all -tasks -functions -all -database waves
    run

    % xrun -input probes.tcl

    Tim

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