Release Notes 2.3.2 Print



This is the Linux BSP (Board Support Package) for the STM32F769I Discovery board.

The BSP provides a software development environment for evaluation and development of Linux (uClinux) on the Cortex-M7 processor core of the STM32F7 microcontroller using the STM32F769I Discovery board as a hardware platform.

Supported Features

The following list summarizes the features and capabilities of this release of the STM32F7 SOM Starter Kit BSP:

  • Linux:
    • Kernel v.4.2;
    • Serial Linux console;
    • Ethernet device driver and Linux TCP/IP networking (ping, NFS, Telnet, FTP, NTPD, etc);
    • busybox v1.17;
    • POSIX pthreads;
    • Hardened exception handling; an exception triggered by a process affects only the offending process;
    • Secure shell (ssh) and secure copy (scp);
    • MTD-based Flash partitioning and persistent Flash file system in external Flash;
    • Multi-port serial UART driver;
    • USB Host and Device (gadget) device drivers for onboard USB HS (High Speed) interface;
    • WiFi connectivity with security;
    • PPP-based TCP/IP connectivity over GSM/3G modems;
    • Bluetooth support using bluez;
    • GPIO device driver.
  • U-Boot firmware:
    • U-Boot v2010.03;
    • Target initialization from power-on / reset;
    • Runs from the internal eNVM and internal SRAM (no external memory required for standalone operation);
    • Serial console;
    • Ethernet driver for loading images to the target;
    • Device driver for built-in Flash (eNVM) and self-upgrade capability;
    • Device driver for external Flash;
    • Autoboot feature, allowing boot of OS images from Flash or other storage with no operator intervention;
    • Persistent environment in Flash for customization of target operation;
    • Sophisticated command interface for maintenance and development of the target.
  • Development tools:
    • Linux-hosted cross-development environment;
    • ARMv7-optimized GNU toolchain from CodeSourcery (2010q1) is used for development of U-Boot, Linux and user-space applications (toolchain must be downloaded separately from the CodeSourcery web site);
    • Cross GDB for debugging user-space applications;
    • mkimage tool used by the Linux kernel build process to create a bootable Linux image.

New and Changed Features

This section lists new and changed features of this release:

  1. Develop the initial BSP (kernel v.4.2) for the the STM Discovery STM32F769I board.
    ID: RM 1239.
  2. Add support for QSPI Flash in Linux.
    ID: RM 1240.
  3. Support updating U-Boot environment variables from Linux.
    ID: RM 1289.
  4. Add support for RS485 to Linux serial driver.
    ID: RM 1166.

Known Problems & Limitations

This section lists known problems and limitations of this release:

  1. SD Card is not supported on STM32F769I-Disco.
    : RM 1425.
    Workaround: None.