A few SKILL functions that make life easier.

GNTCreateLibrary()

This functions automatically adds the gnt library to your library list.

GNTNyquistPlot( wave )

This functions creates a Nyquist plot of wave with both positive and negative frequencies.

asiCreateCdsenvFile()

Do not use on production machines.

In order to avoid the warning about undefined environment variables related to the gnt analysis, such as:

WARNING (ADE-5033): Cannot find the environment variable 'start' for tool 'spectre.gnt'. Its internal default value will be used.  

this built-in function asiCreateCdsenvFile() can be used. Running

asiCreateCdsenvFile('spectre)

creates a file spectreCdsenvFile in the current directory. This file should replace the original one in the Cadence installation tree at:

<cadenceinstalldir>/tools/dfII/local/spectre/.cdsenv