Bartels AutoEngineer is a commercial CAD tool for electrical / computer engineers. It supports Linux, Win95/NT, DOS, OS/2, HP, DEC and Sun. Features include a schematic Editor with hierarchical design support, Forward/Backward Annotation, PCB Layout system, CAM Processor, CAM View, Integrated, object-oriented database system, User Language Compiler, utility programs for database management, foreign net list and design data import, etc. and part libraries for SCM and PCB layout
BitGen accepts text strings of 1's, 0's and hex digits and converts them to equivalent "pwl" voltage sources for inclusion in netlists for circuit simulation (with SPICE or Spectre, for example). Periodic waveforms (eg, clocks) can be exported as "pulse" voltage sources. Parameters such as rise time, fall time, pulse width and duty cycle can be set on a waveform-by-waveform basis. BitGen is written in Perl with the Perl/Tk toolkit and has an easy-to-use graphical interface.
DiaCanvas is a generalized version of the drawing canvas used by DIA. It extends some features used by DIA and adds new ones, while preserving as many of the original features as possible. This project is no longer actively maintained. It is suggested that you try DiaCanvas2 instead.
The Eagle EDA software is composed of tightly integrated modules for PCB design, including Schematic Capture, Board Layout, and Autorouter. There is a free full-function (only board size limited) non-commercial license available for hobby and educational use as well. Windows, DOS, and of course, Linux versions are available.
HDLmaker generates hierarchical Verilog and VHDL code, PCB netlists, simulation and synthesis scripts/projects/make files, and schematics. It can translate Verilog/VHDL and HDLmaker projects into HTML, including extensive hyperlinking between the modules. It can also translate PADS PCB netlists into Verilog and VHDL and can do some simple VHDL to Verilog translations. HDLMaker synplifies the development of complex FPGAs and ASICs, and has extensive support for most Xilinx FPGAs.
LinkCAD is an all-in-one converter for AutoCAD DXF, Gerber RS274X, Calma GDS-II, CIF, PostScript, IE3D, TLC, and more. LinkCAD allows you to convert your mask or PCB layout between all the supported formats. Typical users are layout designers in the electronics industry, and mask designers for micro-technology applications.
Ngspice is a mixed-level/mixed-signal circuit simulator based on three open source software packages: Spice3f5, Cider1b1, and Xspice. Spice3 is the most famous and widely used circuit simulator. Cider is mixed-level simulator that includes Spice3f5 and adds DSIM, a device simulator. Cider couples the circuit level simulator to the device simulator to provide greater simulation accuracy (at the expense of greater simulation time). Xspice is an extension to Spice3 that provides code modeling support and simulation of digital components through an embedded event driven algorithm.
XCircuit is a UNIX/X11 program for drawing publishable-quality electrical circuit schematic diagrams and related figures, and producing 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.
SoC GDS is a platform for enabling hierarchical SoC integration and verification across traditional EDA frameworks based on Virtual Components per the VSIA guidelines. It is also a fast viewer and processor for native GDSII files. It encompasses a set of powerful functions allowing automatic cell renaming, grid verifications, GDS II files merging (AND), physical comparison (XOR), hierarchy modifications, and conversion to text format.