RevEDA Simulation Plugin

RevEDA Simulation (revedasim) is a comprehensive circuit simulation plugin for Revolution EDA that provides seamless integration with the Xyce circuit simulator. It enables users to perform various circuit analyses including DC, AC, transient, noise, and harmonic balance simulations directly from the schematic editor, with support for multi-dimensional parameter sweeps and automatic result visualization through the revedaPlot plugin.

Features

Simulation Capabilities

Xyce Simulator Integration: Full support for Xyce circuit simulator. Ngspice and Vacask support are in works.
Multiple Analysis Types: DC, AC, transient, noise, and harmonic balance analyses
Parameter Sweeps: Multi-dimensional parameter sweep capabilities with nested loops
Netlist Generation: Automatic HSpice compatible netlist generation from Revolution EDA schematics
Model Library Support: Integration with SPICE model libraries and include files

Analysis Configuration

Interactive Setup: Graphical interface for configuring simulation parameters
Analysis Management: Enable/disable multiple analyses in a single simulation run
Output Selection: Flexible selection of nodes, currents, and expressions to save
Initial Conditions: Support for .IC and .NODESET statements
Simulation Options: Comprehensive control over solver parameters and tolerances

Parameter Management

Variable Definition: Define simulation parameters with ranges and lists
Copy from Schematic: Copy from variables schematic automatically.
Sweep Syntax: Support for start:stop:step and comma-separated value lists
Parameter Validation: Automatic checking of parameter names and values
Dynamic Netlisting: Parameters are properly substituted in generated netlists

Process Management

Background Execution: Non-blocking simulation execution with progress monitoring
Multiple Jobs: Concurrent execution of different analysis types
Error Handling: Comprehensive error reporting and logging
File Management: Automatic organization of simulation files and results

Integration Features

Plugin Architecture: Seamless integration with Revolution EDA’s plugin system
Plot Integration: Automatic launching and data transfer to revedaPlot plugin
Model Validation: Parameter name validation against reserved SPICE keywords
Configuration Persistence: Save and restore simulation settings

Plot Management

Point-and-Click Interface: Click on nets or instance terminals to add them to output plot set.
Expression Editor: Define custom expressions for plotting using node voltages and branch currents (soon).

Netlisting and Logging

Fully hierarchical netlist: Netlister is fully hierarchical and can be managed through switch/stop lists or config view.

Supported Analysis Types

DC Analysis

Linear and logarithmic sweeps
Voltage and current source sweeps
Parameter sweeps with nested loops
Operating point analysis with save options

AC Analysis

Linear, octave, and decade frequency sweeps
Small-signal frequency response
Complex impedance and admittance calculations

Transient Analysis

Time-domain simulation with configurable time steps
Initial condition support (UIC option)
Scheduled analysis with time-based events
Multiple integration methods and tolerances

Noise Analysis

Input-referred and output noise calculations
Frequency-dependent noise analysis
Support for multiple noise sources

Harmonic Balance

Steady-state analysis for nonlinear circuits
Multi-tone analysis capabilities
Configurable frequency points and harmonics