glister: Model Circuits in Schematics
without Writing Codes

glister: Model Circuits in Schematics without Writing Codes

GLISTER is a graphical user interface to XMODEL and MODELZEN integrated into the Cadence Virtuoso Design Environment.

With GLISTER, you can easily compose analog models in schematic forms and run XMODEL simulations without writing any codes.

Demo Video 1
Quick Tour on GLISTER

Demo Video 2
Learning XMODEL Primitives with Phase-Locked Loop(PLL) Modeling

Feature 1

Model Building with XMODEL Primitive Symbols

GLISTER provides the rich set of XMODEL primitives as schematic symbols and can netlist them into SystemVerilog models. Hence, writing models with GLISTER simply means placing primitive symbols on a schematic and connecting them with wires. No coding is necessary! Composing models with GLISTER is even easier with the on-line documentations integrated into the Cadence Virtuoso Design Environment.

XMODEL Primitive Symbols

XMODEL Primitive Documentation

Feature 2

Mixed-Signal Hierarchical Netlisting

GLISTER understands that your schematic models may contain different types of signals connecting digital and analog components, such as wire, real, xbit, and xreal. When netlisting the schematics into SystemVerilog models, GLISTER can automatically determine the proper type of each signal and insert type-coercing connectors as necessary.

XMODEL Netlist

Feature 3

XMODEL-SPICE Co-simulation Support

When both circuit and model views co-exist in the design hierarchy, GLISTER prepares necessary files for XMODEL-SPICE co-simulation, including the SystemVerilog model files, SPICE/Spectre netlists, and mixed-signal simulation control files. The view for each cell or instance can be selected using the Cadence Hierarchy Editor. The GLISTER Testbench Editor provides a uniform interface to different simulators including Synopsys's VCS and XA and Cadence's NCVerilog and APS.

XMODEL-SPICE co-simulation

Feature 4

Integrated Testbench Management

With GLISTER's Testbench Editor, you can define XMODEL testbenches as cellviews in the Cadence design database, specifying the simulation options, hierarchy configurations, extra source files, etc., all using a graphical user interface. Also, each testbench cellview can be exported as a simulation directory containing a Makefile and source files, allowing batch processing from the command line.

Testbench Editor

Feature 5

Cross-probing Support for XWAVE Waveform Viewer

After the simulation is run, you can view the waveforms using XWAVE or any other waveform viewer supporting FSDB format. GLISTER supports interactive cross-probing for quick and easy selection of signals to view.

XWAVE Waveform Viewer

Feature 6

Graphical User Interface for MODELZEN

GLISTER also serves as a GUI front-end for MODELZEN, enabling you to auto-generate models from circuits just with a single mouse click! With GLISTER, you can assign custom MODELZEN properties to individual pins or instances on a schematic, tailoring the way the model is generated. For instance, you can change the data type of each I/O port or adjust the accuracy level of each instance model. GLISTER can also import the generated models into the Cadence design database and maintain the models up-to-date.


Feature 7

Integration with Cadence Virtuoso Analog Design Environment (ADE)

GLISTER-ADE integration allows you to choose "XMODEL" as one of the supported simulators from ADE sessions and perform key GLISTER tasks such as composing testbenches, generating netlists, running simulations, and viewing waveforms, all using the familiar ADE menus and commands.


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