Firmware Development

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Source Code

Firmware Creation

Here is the basic workflow needed in order to make a change to the firmware

  • Decrypt a firmware file
  • Split it into A+B
  • Disassemble it
  • Trace through the compiler produced code to find whatever we want to change
  • Write the change in assembler (until compiler available)
  • Translate it to machine code
  • Insert it into the firmware file
  • Disassemble it again
  • Compare the with the inteded assembler and iterate until it is the same
  • CRC sign the firmware
  • Encrypt the firmware
  • Load into Camera

(List seeded from roos in comments here)

Tools

Compilers