Correction: Microfreak FW base offset is 0x0800C000

[lomereiter]

Hello,

I'm reversing MicroFreak too, and initially I wasted a couple of weeks working with the wrong offset - so I'm certain that neither 0x8000 nor 0x14000 are correct.

Here's the summary of the addresses starting from the reset vector up to MIDI input processing (0x080480A8 = 0x080540A8 - 0xC000)

 vector[reset] @ 0x0800C004
     → 0x0805F849 (Thumb)
     → reset_handler @ 0x0805F848
          → check_bootloader_dfu       @ 0x0802EDAC
          → copy .data / clear .bss
          → init_fpu_and_clock          @ 0x08025730
          → __libc_init_array           @ 0x08061420
          → main                        @ 0x0802479C
                ...
               → main loop
                     ...
                    → midi_in_drain      @ 0x08047C6C
                         → USART1 ring pop
                         → midi_in_process_byte @ 0x080480A8