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binary-diff-mbedos5's Introduction

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.

binary-diff-mbedos5's People

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thendrickson melansahil0609

binary-diff-mbedos5's Issues

Question: How to apply binary diff, when you don't have an external flash and you need to do it on internal flash.

Hi Jan,

I am not sure if you are monitoring this repository any longer. Anyway I thought just incase I will ask my question :). We are planning on transmitting firmware updates over LORAWAN. We currently have a custom board, which has an mDot and BLE Module. So we want to transmit firmware updates to both the mDot and BLE Module. I came across this repository which demonstrates the example for using an external SD card or flash to eventually merge the diff file with the original file. How would I go about doing it on the internal flash using the FlashIAP API in mbed os 5. We eventually plan on adding an external flash to the BLE Module, but until then I was wondering if you have any suggestions, how I could extend your BDFile to support internal flash too?

Thanks,
Yogesh

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