LabWired Core

LabWired Core is a deterministic firmware simulator for microcontrollers: it loads a firmware ELF and executes it against modeled silicon, CPU, buses, peripherals, sensors, displays and protocol devices, returning UART output, GPIO and bus traces, register state and a pass or fail exit code. The same ELF and the same board manifest give the same trace on every machine, which is what makes a run usable as a CI gate.

Supported cores are ARM Cortex-M0+, M3, M4, M7 and M33, RISC-V, and Xtensa LX6 and LX7 on selected ESP32 paths. Boards are data, not code: a chip descriptor declares memory geometry, cores and peripheral bases, and a system manifest wires up pins, buses and devices, so adding a board means writing those two files and an example.

An agent reaches it over MCP through the hosted connector, or the CLI, test runner, Python SDK and VS Code extension drive it directly. Every capability sits in a named tier, modeled, smoke-tested or hardware-compared, and the Fidelity Ledger records where the simulator short-circuits real hardware; the NUCLEO-H563ZI example runs the same firmware on a physical board and on the simulator with committed artifacts.