bootloader_apps_i2c

Bootloader and Application binary merge script Help

This document describes the usage of btl_app_merge_bin.py host script

Downloading the host script

To clone or download the host tools from Github,go to the bootloader repository and then click Clone button to clone this repo or download as zip file. This content can also be download using content manager by following these instructions

Path of the tool in bootloader repository is tools/btl_app_merge_bin.py

Setting up the Host PC

The Script is compatible with Python 3.x and higher

Description

This script should be used to merge the bootloader binary and application binary
It creates a merged binary output where bootloader is placed from start and the application will be placed at the offset passed as parameter
If the application offset is not equal to end of bootloader offset it fills the gap with 0xFF until the application offset
The merged binary can be used by I2C NVM Host Application as input for Updating bootloader and application together
The merged binary will be created in the directory from where the script was called

Usage Examples

python <harmony3_path>/bootloader/tools/btl_app_merge_bin.py --help

Below is the syntax and an example on how to merge a bootloader binary and application binary

python <harmony3_path>/bootloader/tools/btl_app_merge_bin.py -o <Offset> -b <Bootloader_binary_path> -a <Application_binary_path>

python <harmony3_path>/bootloader/tools/btl_app_merge_bin.py -o 0x2000 -b <harmony3_path>/bootloader_apps_i2c/apps/i2c_fail_safe_bootloader/bootloader/firmware/sam_e54_xpro.X/dist/sam_e54_xpro/production/sam_e54_xpro.X.production.bin -a <harmony3_path>/bootloader_apps_i2c/apps/i2c_fail_safe_bootloader/test_app/firmware/sam_e54_xpro.X/dist/sam_e54_xpro/production/sam_e54_xpro.X.production.bin