Circuit

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Circuit#

A Circuit represents an FPGA configuration that can be compiled and uploaded to physical hardware. The Circuit protocol requires a single method, compile(fpga), which converts the circuit’s internal representation into a binary bitstream for a target FPGA.

Circuits may or may not be the same object as an Individual — they are identical when the Individual directly represents a full circuit, but separate when multiple Individuals are combined to form a single circuit for evaluation.

Implementations#

  • Circuit.py — Abstract base providing shared constants (tile coordinates, routing types, column definitions) for ICE40-based circuits.

  • FileBasedCircuit.py — The primary implementation: operates on IceStorm .asc files via memory-mapped I/O, supporting mutation, compilation (icepack), and upload (iceprog).

  • FullySimCircuit.py — A simulated circuit for testing without physical hardware.

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