ChipVault is a chip development program for organizing VHDL and Verilog designs. ChipVault displays designs hierarchically and provides for rapid design navigation and editor launching. ChipVault provides hooks for performing bottom-up tasks such as launching RTL compilers, synthesis, block generation and instantiation, and includes simple to use Revision Control and Issue Tracking systems to help facilitate large group design projects with multiple designers and hundreds of design files. ChipVault is written in Perl and is small, fast, and efficient.
Electronic Engineering Tool is a Web-based tool that includes an electronic formula calculator and converter functions. It very useful when working with electronics, both for engineers and amateurs. For example, it includes converters for dBm-to-Watt and Fahrenheit-to-Celsius, and it can calculate Ohm's law, filters, thermal resistant C/W, SWR, coil inductance, capacitor capacity, and more.