Release Notes 2.5.0 Print



This is the Linux BSP (Board Support Package) and the development environment for the STM32H7 System-On-Module (SOM) and Starter Kit, release 2.5.0.

The BSP provides a software development environment for evaluation and development of Linux (uClinux) on the Cortex-M7 processor core of the STM32H7 microcontroller using the Emcraft STM32H7 SOM Starter Kit as a hardware platform.

Supported Features

The following list provides a summary of the features and capabilities of this release of the STM32H7 BSP:

  • Linux:
    • Kernel v.5.15.67;
    • Serial Linux console;
    • Ethernet device driver and Linux TCP/IP networking (ping, NFS, Telnet, FTP, NTPD, etc);
    • Clock driver;
    • pinctrl driver;
    • busybox v1.24.2;
    • POSIX pthreads;
    • Hardened exception handling; an exception triggered by a process affects only the offending process.
  • U-Boot firmware:
    • U-Boot v 2019.04-rc3;
    • Serial console command interface with various setup, test and maintenance commands;
    • Environment variables allowing customisation of a unit;
    • Sophisticated OS auto-boot sequence;
    • Partitioning and management of external Flash;
    • Initial installation of Linux image to external Flash.
  • Development environment:
    • Linux-hosted cross-development environment;
    • 10.3-2021.10 Arm Embedded Toolchain is used for development of U-Boot, Linux;
    • 4.7.4 GNU toolchain is used for development of user-space applications;
    • mkimage tool used by the Linux kernel build process to create a bootable Linux image.

Software Manifest

Repo Link Hash Branch
Linux STM32H7 https://github.com/EmcraftSystems/linux-stm.git 75b7979d linux-cm-stm32h7-2.5.0
U-Boot STM32H7 https://gitlab.com/emcraft/STM32H7/u-boot-upstream.git 90589589 linux-cm-stm32h7-2.5.0

Known Problems and Limitations

This section lists known problems and limitations of this release:

  • Managing U-Boot environment from Linux is not supported.