Fizzim

Fizzim is a FREE, open-source GUI-based FSM design tool. The GUI is written in java for portability. The backend code generation is written in perl for portability and ease of modification.

Features:

GUI:

• Runs on Windows, Linux, Apple, anything with java.
• Familiar Windows look-and-feel.
• Visibility (on/off/only-non-default) and color control on data and comment fields.
• Multiple pages for complex state machines.
• “Output to clipboard” makes it easy to pull the state diagram into your documentation.

Backend:

• Verilog/SystemVerilog/VHDL code generation based on recommendations from experts in the field.
• Output code has “hand-coded” look-and-feel (no tasks, functions, etc).
• Switch between highly encoded or onehot output without changing the source.
• Registered outputs can be specified to be included as state bits, or pulled out as independent flops.
• Mealy and Moore outputs available.
• Transition priority available.
• Automatic grey coding available.
• Code and/or comments can be inserted at strategic places in the output – no need to “perl” the output to add your copyright or `include