OpenSpec

OpenSpec is an open-source standard for defining hardware interface specifications through machine-readable YAML files.

OpenSpec eliminates manual documentation bottlenecks by converting hardware registers and memory maps into actionable code. By utilizing a unified YAML schema, teams generate C headers, Python drivers, and RTL logic directly from a single source of truth. It supports complex bitfield mappings and nested address spaces (ideal for FPGA and SoC development) to ensure hardware and software teams remain perfectly synchronized throughout the silicon lifecycle.

https://openspec.org