Introduction to MODELZEN: An Automatic Generation Tool for Bottom-Up SystemVerilog Models
Overview
This tutorial covers the basics of using MODELZEN to model and simulate various analog/mixed-signal systems. For instance, one can learn how to compose model schematics, generate XMODEL source netlists, run simulations, and plot waveforms all in a GUI environment provided by Cadence® Virtuoso®. The final chapter covers an example of modeling a successive approximation register analog-to-digital converter (SAR-ADC), which is composed of both analog and digital components.
Lecture Notes
- Lecture #01: MODELZEN overview
- Lecture #02: Getting started with MODELZEN
- Lecture #03: MODELZEN setup guide
- Lecture #04: MODELZEN practices with examples
- Lecture #05: Advanced topics with XMODEL & MODELZEN
- Lecture #06: Automating simulations with XMULAN and Python
- Lecture #07: Model calibration using MODELFIT
- Lecture #08: Putting it all together: a continous-time linear equalizer (CTLE) modeling example
How To Get Started
1. Install the latest XMODEL package as explained in the XMODEL Installation Guide.
2. Properly setup your Unix shell & Cadence® Virtuoso® environments as explained in the XMODEL Installation Guide or XMODEL Setup Summary documents.
3. Copy the tutorial files to your local directories, for instance:
cp -R ${XMODEL_HOME}/tutorial/modelzen_basic ~/modelzen_basic
4. Set additional environment variables for the tutorials by sourcing the setup files located in the etc/ directory.
For instance, on bash-like shells:
cd ~/modelzen_basic source etc/setup.bashrc
And on csh-like shells:
cd ~/modelzen_basic source etc/setup.cshrc
You may need to modify these setup files according to your own environment.
5. Try a quick model generation using MODELZEN:
cd quick_start modelzen circuit.sp -c tech_config.py -o model.sv --gui
6. For further information, learn the tutorial materials in the ~/modelzen_basic/doc directory. Enjoy!