Binary diff application demo - SD card

Using JANPatch. Does binary patching of firmware using FATFileSystem on Mbed OS 5.

There is also a demo which uses BlockDevice instead.

Takes:

• Source binary.
• Diff file.

Produces:

• A new binary.

This application does not use dynamically allocated memory. See macro in main.cpp.

Usage

1. Put demo/blinky-k64f-old.bin and demo/blinky.patch on an SD card.

2. Put SD card in FRDM-K64F development board.

3. Build this application:

   $ mbed compile -m K64F -t GCC_ARM
   

4. Run the application and inspect serial output (on baud rate 9,600).

5. When the application is done, inspect the SD card. blinky-k64f-new.bin should have appeared, and it should match the file in the demo directory:

   $ diff /Volumes/SD/blinky-k64f-new.bin demo/blinky-k64f-new.bin
   
   # should not return anything
   

How to create diffs

See the documentation for JANPatch.