Once you have the .bin or .hex file, the actual "decompilation" depends on the target hardware (e.g., Raspberry Pi Pico's RP2040 uses ARM Cortex-M0+).
| Tool | Purpose | UF2 Support | |------|---------|--------------| | | Extract binary | Native | | uf2-family | Identify target MCU | Looks up family IDs | | Ghidra | Decompilation | Manual import of .bin | | IDA Pro (with UF2 loader script) | Disassembly & Decompilation (Hex-Rays) | Community scripts on GitHub | | Radare2 / Cutter | Command-line decompilation | r2 -a arm -b 16 firmware.bin | | BlackMagic UF2 Tool | Debug UF2 block integrity | Validate before decompile | uf2 decompiler
Microsoft maintains an open-source Python utility called uf2conv.py in their UF2 GitHub repository. This tool can pack and unpack UF2 files effortlessly. Once you have the
Look through the defined strings window. Microcontrollers frequently contain debug logs, error print statements, or command-line interface strings. Finding a string like "Sensors Initialized Successfully" gives you an immediate clue about the purpose of the function referencing it. Peripheral Mapping Look through the defined strings window