JTAGTest is an IEEE 1149.1 JTAG Boundary scan tester for embedded designers, production houses, and service companies. It provides a significant aid for PCB debugging, prototyping, testing, and repairing. Using an IEEE 1149.1 (JTAG) boundary-scan, the device pin signals or internal signals can be monitored in real-time without interfering with normal device operation, and you can change pin state manually. It runs under Wine on 32-bit Linux distributions using special Linux support libraries, which are included in the distribution.
Salut is a small program that performs calculations on simple networks around two-port devices (like transistors) characterized by s-parameters, at radio frequencies (RF). It has the ability to model components in series with a two-port block, like an inductance from the common lead to ground. Salut is also not restricted to the usual common emitter or common source configuration even though many semiconductor manufacturers only provide s-parameters for this case.
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.
Transcalc is an analysis and synthesis tool for calculating the electrical and physical properties of different kinds of RF and microwave transmission lines. It uses GTK+ for its user interface. For each type of transmission line, it presents you with dialog boxes which allow you to enter values for the various parameters, and either calculate its electrical properties (analyze) or use the given electrical requirements to sythesize physical parameters of the required transmission line.
YaPIDE aims to be a fully featured Microchip PIC simulator for Linux (and probably other Unixes). It is a GUI that provides a viewer for RAM, ROM, stack, breakpoints, and watchpoints, and has a source editor with inline debugging (ASM). The chip currently supported is the 16F628 (partial).
asfpga is an assembler written for use in FPGA design. It can be easily modified for a particular instruction set. The ultimate goal of this software is to allow a FPGA designer to easily write assembly code for a custom instruction set. The current version allows you to create a listing file, a memory dump file which can be used in debugging HDL code using $readmemh() or equivalent routine, and a binary file which can be used to program an EPROM.