YosysHQ/icestorm

Health v2 · maintenance only

Adoption not part of the score

1182 stars · 244 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Project IceStorm documents the reverse-engineered bitstream format of Lattice iCE40 FPGAs and provides tools for analyzing and creating bitstream files. It is a core component of the fully open-source FPGA toolchain for iCE40 devices.

Use cases

• generate bitstreams for iCE40 FPGAs with open-source tools
• analyze and inspect iCE40 bitstream files
• document FPGA chip database for place-and-route tools
• build a fully open FPGA synthesis flow
• reverse-engineer FPGA bitstream formats

When to choose

• you are using the open-source Yosys/nextpnr flow targeting Lattice iCE40 FPGAs
• you need to parse, create, or verify iCE40 bitstream files
• you want chip documentation for iCE40 devices

When to avoid

• you target FPGA families other than Lattice iCE40
• you prefer vendor tools like Lattice Diamond or iCECube2
• you need synthesis or place-and-route itself (use Yosys/nextpnr instead)

Facets

library · maturity active

reverse-engineering developer-tools parser hardware embedded-systems reverse-engineering developer-tools windows cross-platform python fpga bitstream ice40 lattice open-source-fpga-toolchain hardware-documentation linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="YosysHQ/icestorm")