alonzo-zephyr-bsp

Zephyr board support package (BSP) for the Animula Alonzo board, an STM32F411CE based development board from HardenedLinux.

This BSP targets Zephyr 4.4 and follows the current Zephyr hardware model (HWMv2, board.yml). It reuses the upstream STM32F411 SoC support — no SoC code is duplicated here.

Layout

alonzo-zephyr-bsp/
├── zephyr/
│   └── module.yml                    # registers this repo as a Zephyr module
└── boards/
    └── animula/
        └── animula_alonzo/
            ├── board.yml             # HWMv2 board metadata
            ├── animula_alonzo.dts    # devicetree
            ├── animula_alonzo_defconfig
            ├── animula_alonzo.yaml   # twister metadata
            ├── Kconfig.animula_alonzo
            ├── board.cmake           # flash/debug runners (J-Link + OpenOCD)
            ├── support/openocd.cfg
            └── doc/index.rst

Hardware

• MCU: STM32F411CE (UFQFPN48), Cortex-M4F
• Flash: 512 KB, SRAM: 128 KB
• Clock: 24 MHz HSE -> PLL -> 96 MHz SYSCLK (48 MHz USB)
• Console: USART1 (PA9/PA10, 115200 8N1)
• UART2: PA2/PA3 (BLE), I2C1/I2C2/I2C3, SPI1 (Micro-SD) / SPI2, USB OTG FS, RTC
• 4 user LEDs, 1 user button, BLE enable/disable GPIO

See boards/animula/animula_alonzo/doc/index.rst for the full pin map.

Usage

This repository is a Zephyr module. Point your Zephyr 4.4 workspace at it, then build normally.

Option A — via ZEPHYR_EXTRA_MODULES

export ZEPHYR_EXTRA_MODULES=/path/to/alonzo-zephyr-bsp
cd <zephyr-workspace>
west boards | grep animula
west build -b animula_alonzo samples/hello_world

Option B — as a west project

Add it to your workspace manifest:

manifest:
  projects:
    - name: alonzo-zephyr-bsp
      path: modules/alonzo-zephyr-bsp
      url: https://github.com/hardenedlinux/alonzo-zephyr-bsp.git
      revision: master

Then:

west update
west boards | grep animula
west build -b animula_alonzo samples/hello_world

License

GPL-3.0-or-later. See LICENSE.

Copyright (c) 2026 HardenedLinux Animula. Author: Nala Ginrut roy@hardenedlinux.org.