How to configure eos for a custom ARM Cortex-M board?

[srpatcha]

I have a custom ARM Cortex-M4 board and want to add BSP support in eos. What files need to be created and what is the recommended directory structure?

[srpatcha]

To add BSP support for a custom ARM Cortex-M4 board in eos:

1. Create a new directory under ebuild/boards/your_board_name/
2. Add the board description file board.yml with CPU architecture, memory map, and peripheral config
3. Create the linker script linker.ld for your specific memory layout
4. Add the HAL initialization in hal_init.c (clock, GPIO, UART setup)
5. Register the board in ebuild/boards/catalog.json

Example structure:

ebuild/boards/custom_m4/
├── board.yml
├── linker.ld
├── hal_init.c
└── README.md

See the existing boards for reference patterns. The build system will auto-detect the new board once registered in the catalog.