4.1 Quick Fix for Missing Signals

If signals are not visible after migration, add visibility options by executing the following code.

# Option 1: With explicit vopt
vopt dut -o opt_dut +acc=rn -debugdb
vsim opt_dut

# Option 2: Through vsim
vsim dut -voptargs="+acc=rn"

# Option 3: Using qrun (QuestaSim only)
qrun rtl/dut.sv -top dut +acc=rn

QuestaSim offers the following two simulation and debug environments:

  • QuestaSim Classic GUI: The traditional waveform and debug interface (enabled with +acc).
  • Visualizer Debug Environment: The unified debug environment built on the Questa Information System (QIS), enabled with the -debug and -designfile switches.

Within Libero SoC, QuestaSim Classic GUI is selected by default. You can switch to the Visualizer environment to run and debug simulations.