cadence

Setting Probes for SimVision in SystemVerilog Code

I'm trying to probe the systemverilog signals by using irun . I came across the some example to dump wave as the below ,when I googling.

 initial begin                                                                 
     $recordfile("sv_wave");                                                  
     $recordvars("depth=all",pstest);                                         
  end

It seems work but the other variables can't see the value with "No Value Available".

I use the below script to run the simulation.

irun \                                                                         
    +access+wrc \                                                              
    -cdn_vip_root /u572/cadence/installs/VIPCAT113 \                     
    /u572/sv/denaliMem.sv \
    /u572/sv/denaliCdn_ahb.sv \    
    /u572/svExamples/simpleExample/hdl/master_mux.v \
    /u572/svExamples/simpleExample/hdl/slave_mux.v \
    hdl/ahb_verilog.v \                                                        
    test2.v \
    tb.sv \                                                                    
    -incdir /u572/svExamples/simpleExample \
    -timescale 1ps/1ps -top pstest

What am I supposed to do to get the variable's value of the No Value Available variable?

Solution

  • On the simulator side, the command you can use is probe -create <signal> <options>. You can either type that in the irun simulator console or provide as an instruction in the .tcl file at startup. Refer to the documentation provided with the simulator under the section Simulator Tcl Commands / probe for verbose description & examples.