TyVIS is a VHDL simulation kernel which has been implemented on top of WARPED, a general purpose Time Warp simulation kernel. This combination provides parallel VHDL simulation capability as WARPED allows sequential and parallel simulation.
The aim of the V2000 project is to circumvent the politics of the EDA vendors and OVI/IEEE committees and implement a Verilog-AMS (and VHDL) simulator system without the bugs and semantic problems that those committees have failed to fix.
Verilog Behavioral Simulation is a simple implementation of a Verilog simulator
VHDL Developer's Toolkit is developed to support fast and easy development and integration of VHDL application tools. It provides a library of versatile routines and several utilities for developers of VHDL application.
VGUI is a free graphical tool for capturing, drawing, editing, and navigating hierarchical block-diagrams, and for producing corresponding structural VHDL code. The VGUI tool is easy to learn-and-use, with a style based on popular web-browser, word-processor/drawing tools.
ViPEC is a powerful tool for the analysis of high frequency, linear electrical networks. It takes a text based description of the electrical network and an analysis is performed in the frequency domain. The output is in the form of 2-port parameters (S, Y or Z) with results presented on a user defined grid and Smithchart.
Verification Interacting with Synthesis: a system for formal verification, synthesis, and simulation of finite state systems
Voyeur is a visualization tool that displays a circuit schematic on the screen. It works in conjunction with external layout tools, including VCG, and Dot. Voyeur also comes with some perl scripts which will derive a visualization layout from information provided by Carafe.
VSTGL is intended to improve the overall design flow for people who are often working with Signal Transition Graphs (STG).
WREC Reforms Electrolytic Capacitors: automates this process using serial ports to control SCPI-programmable power supplies. WREC will ramp the voltage, at each step setting an appropriate current limit, and waiting for the leakage current to drop to an acceptable level
XCircuit is a program for drawing publishable-quality electrical circuit schematic diagrams and related figures, and produce circuit netlists through schematic capture. XCircuit regards circuits as inherently hierarchical, and writes both hierarchical PostScript output and hierarchical SPICE netlists. Circuit components are saved in and retrieved from libraries which are fully editable. XCircuit does not separate artistic expression from circuit drawing; it maintains flexiblity in style without compromising the power of schematic capture.
XRoadMaker is a GNOME pcb. It support equipotentials, multiwidth and distributed tracks.