1 Environment Setup Checklist

Complete the following steps before running simulations. Run commands from a terminal where QuestaSim is in PATH.

Note: Before you start, if vsim is not recognized, add the QuestaSim win64 directory to your PATH for the current PowerShell session (replace the version if needed):
$env:Path = "C:\microchip\Libero_SoC_2025.2\Libero_SoC\QuestaSim_Pro\win64;$env:Path"
  1. To verify QuestaSim installation, run vsim -version and confirm "QuestaSim" is reported.
  2. To verify license, run vsim -c -do "quit -f". If it exits without license errors, setup is correct.
  3. To use 64-bit mode (recommended), add -64 flag to vsim for large designs.
Important: For floating licenses, use SALT_LICENSE_SERVER instead of LM_LICENSE_FILE. Node-locked licenses work unchanged. Contact your license administrator for server details.