Uf2 Decompiler -

What you will see:

void reset_handler(void) uint32_t *src = &_sfixed; uint32_t *dst = &_data_start; while (dst < &_data_end) *dst++ = *src++; // ... call main() uf2 decompiler

pip install uf2utils uf2conv.py firmware.uf2 -o firmware.bin -b 0x10000000 (The base address -b may be known from the device datasheet or UF2 flags.) What you will see: void reset_handler(void) uint32_t *src

However, the is solid, well-understood, and accessible. By extracting the raw binary, identifying the architecture, and using a professional decompiler like Ghidra, you can recover a close approximation of the original logic—often enough to patch, analyze, or learn from the firmware. uint32_t *dst = &_data_start

Each 512-byte block: skip bytes 0-32 (header), take bytes 32-288 (payload), repeat. Concatenate all payloads.