Renode

Renode is the first public tool to try when firmware behavior depends on a modeled MCU board, RTOS peripherals, UART, GPIO, timers, storage, or multi-core SoC state.

Use Renode when

• the artifact is MCU/RTOS firmware and a board or close SoC model exists
• UART/GPIO/timer/storage/network peripheral behavior matters
• QEMU lacks the exact board, or CPU-only emulation hangs on MMIO
• you need deterministic virtual time and GDB remote debugging
• you can write or adapt a .repl platform description for the minimum needed peripherals

Do not treat CPU stepping as board parity. Prove the peripheral behavior relevant to the objective.

Core objects