This article shows how to start up a STM32MP257x-EV1 
Evaluation boards (high-end development platforms for the STM32MP25 microprocessor devices) with the software image for the Yocto-based OpenSTLinux embedded software. It is valid for the STM32MP257F-EV1 Evaluation boards: the part numbers are specified in the STM32MP25 microprocessor part numbers article.
It lists the required material, points to the board features description, and gives the step-by-step process to set up the system.
Finally, it proposes to run some basic use cases and to discover some of the board capabilities.
1. Starter Package content[edit | edit source]
If not yet familiar with the Yocto-based OpenSTLinux embedded software and its Packages, refer to the following articles:
- Which STM32MPU Embedded Software Package better suits your needs (and especially the Starter Package chapter)
- Yocto-based OpenSTLinux embedded software
If already familiar with the Starter Package for the Yocto-based OpenSTLinux embedded software, the fast links to essential commands might be of interest.
To sum up, thisStarter Package provides:
- The software image for the Yocto-based OpenSTLinux embedded software, which includes:
- The binaries for the OpenSTLinux distribution.
- One or more firmware example(s) for the STM32Cube MPU Package.
- The tool (STM32CubeProgrammer) to install this image on the STM32MP25 Evaluation board.
2. Starter Package step-by-step overview[edit | edit source]
The following steps are required to get the STM32MP25 Evaluation board up and running:
☐ Checking the material
☐ Assembling the board
☐ Installing the tools
☐ Downloading the image and flashing it on the board
☐ Booting the board
Once these steps are achieved, It is possible to:
- Check the boot sequence
- Execute basic commands
- Run basic use cases
- Discover the capabilities of the STM32MP25 Evaluation board
3. Checking the material[edit | edit source]
Mandatory
| PC | Linux or Windows operating systems. See PC prerequisites for more details on the required configurations |
| STM32MP257x-EV1 evaluation board | High-end development platform for the STM32MP25 microprocessor device including:
|
| microSDTM card | It is populated with OpenSTLinux distribution (Linux software), and provides extra storage capacity. An 8-Gbyte minimum microSD card is needed |
| USB type-C cable | It connects the STM32MP257x-EV1 evaluation board to the PC through the USB type-C (ST-LINK/V3) connector |
| USB type-C cable | It connects the STM32MP257x-EV1 evaluation board to a USB OTG device through the USB micro-AB connector |
Optional
| LCD screen | Several types of screen are possible : LVDS, DSI, or HDMI |
| Power supply | (Optional) Power supply block (5 V, 3A) for the MB1936 board. |
| USB keyboard and mouse | Thanks to the USB type A connectors, the STM32MP257x-EV1 Evaluation board can be equipped with a full-size keyboard and mouse |
| Ethernet cable | It can connect the STM32MP257x-EV1 evaluation board to a network through the RJ45 connector |
| RS232 cable | It can connect the STM32MP257x-EV1 evaluation board to the PC through the UART connector as an alternative of the ST-LINK/V2-1 connection |
| CAN cable | It can connect the STM32MP257x-EV1 evaluation board to CAN devices through the CAN FD/TT connectors |
| Trace cable | It can connect the STM32MP257x-EV1 evaluation board to an external tool through the Trace connector |
| JTAG cable | It can connect the STM32MP257x-EV1 evaluation board to an external tool through the JTAG connector |
Optionally, devices and extension boards might be plugged to the STM32MP257x-EV1 evaluation board thanks to connectors such as:
- the GPIO expansion connector
- the PCIe connector
- the Mikro bus connector
- ...
The following figure shows the material not included in STM32MP25 Evaluation board package that is used in this Starter Package.
4. Assembling the board[edit | edit source]
The STM32MP257x-EV1 Evaluation board packages (STM32MP257F-EV1 ), completed by the B-CAMS-IMX package, include the items listed below.
| Position | Description |
|---|---|
| 1 | MB1936 main board |
| 2 | 7” LVDS WSVGA display with touch panel (EDT ETML0700Z9NDHA panel) (optional) |
| 3 | LVDS display cable (optional) |
| 4 | MB1854 board AI camera (not part of the STM32MP257x-EV1 Evaluation board package; provided with the B-CAMS-IMX package) (optional) |
| 5 | Camera board FFC (not part of the STM32MP257x-EV1 Evaluation board package; provided with the B-CAMS-IMX package) (optional) |
LVDS displays and CSI cameras are available for purchase to complete this basic setup.
The complete set looks like this:
4.1. Connecting the LVDS display to the board[edit | edit source]
- Check the cable orientation shown above using the black mark and the white twisted pairs.
- Find the LVDS ports on the STM32MP257x-DK Discovery kit (CN2) and the display (CN1). The LVDS display box contains one cable.
- Insert the cable into each port as shown below:
4.2. Connecting the MB1854 camera board to the board[edit | edit source]
- Find the camera ports on the STM32MP257x-EV1 Evaluation board (CN4) and MB1854 (CN1). One FFC is provided in the camera box.
- For each port:
- Pull the black plastic (#1 in the image below) lightly to insert the contact side of the FFC towards the board (#2 in the image below).
- Push the black plastic carefully to hold the FFC (#3 in the image below).
4.3. STM32MP257x-EV1 Evaluation board assembled[edit | edit source]
5. Installing the tools[edit | edit source]
5.1. Installing the STM32CubeProgrammer tool[edit | edit source]
| STM32CubeProgrammer for Linux® host PC | STM32CubeProgrammer for Windows® host PC | |
|---|---|---|
| Download |
Version v2.20.0
unzip en.stm32cubeprog.zip | |
| Installation |
$> ./SetupSTM32CubeProgrammer-2.20.0.linux
$> export PATH=<my STM32CubeProgrammer install directory>/bin:$PATH
$> ln -s <my STM32CubeProgrammer install directory>/bin/STM32_Programmer_CLI /home/bin/STM32_Programmer_CLI |
|
| User manual |
| |
| Detailed release note |
| |
5.2. Preparing the USB serial link for flashing[edit | edit source]
It is recommended to use the USB (in DFU mode) for flashing rather than the UART, which is too slow.
Below indications on how to install the USB in DFU mode under Linux and Windows OS, respectively.
- For Linux host PC or Windows host PC with VMWare:
The libusb1.0 package (including USB DFU mode) must be installed to be able to connect to the board via the USB port. This is achieved by typing the following command from the host PC terminal:
sudo apt-get install libusb-1.0-0
To allow STM32CubeProgrammer to access the USB port through low-level commands, proceed as follows:
cd <your STM32CubeProgrammer install directory>/Drivers/rules
sudo cp *.* /etc/udev/rules.d/
- For Windows host PC:
Run the “STM32 Bootloader.bat” file to install the STM32CubeProgrammer DFU driver and activate the STM32 microprocessor device in USB DFU mode. This driver (installed by STM32 Bootloader.bat) is provided within the STM32CubeProgrammer release package. It is located in the DFU driver folder, \Drivers\DFU_Driver.
In case of issue, refer to How to proceed when the DFU driver installation fails on Windows host PC.
To validate the installation, the DFU driver functionality can be verified by following the FAQ instructions provided in how to check if the DFU driver is functional.
6. Downloading the image and flashing it on the board[edit | edit source]
6.1. Image download[edit | edit source]
For A35-TD flavor
- The STM32MP2 image (binaries) is delivered through one tarball file named en.FLASH-stm32mp2-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11.tar.gz applicable to STM32MP215F-DK
, STM32MP257F-DK for STM32MP23x lines evaluation , STM32MP257x-DK and STM32MP257x-EV1
- Download and install the STM32MP2 image (binaries):
The software package is provided AS IS, and by downloading it, you agree to be bound to the terms of the software license agreement (SLA0048). The detailed content licenses can be found here.
| STM32MP2 Starter Package image - STM32MP2-Ecosystem-v6.1.0 release for A35-TD flavor
| |
|---|---|
| Download |
Go on st.com to download the STM32MP2 Starter Package image, en.FLASH-stm32mp2-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11.tar.gz file. |
| Installation |
cd <working directory path>/Starter-Package
tar xvf en.FLASH-stm32mp2-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11.tar.gz |
| Release note |
Details of the content of this software package are available in the associated STM32 MPU OpenSTLinux release note. |
If you are interested in older releases, please have a look into the section - The binaries and the Flash layout files are in the <Starter Package installation directory>/stm32mp2-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11/images/stm32mp2/ directory. The most important ones are:
stm32mp2 ├── arm-trusted-firmware TF-A binaries for FSBL partitions and supported boot chains │ ├── bl2 TF-A BL2 binary for FIP binaries creation │ │ ├── tf-a-<board name>-<hardware security>-<boot chain>-<storage>.bin │ │ └── [...] │ ├── bl31 TF-A BL31 binary for FIP binaries creation │ │ ├── debug Debug binaries for BL31 │ │ │ ├── tf-a-bl31-<board name>-<hardware security>-<boot chain>-<storage>.elf Debug symbol file for TF-A BL31 │ │ │ └── [...] │ │ ├── <board name>-<hardware security>-<boot chain>-<storage>.dtb TF-A BL31 device tree for FIP binaries creation │ │ ├── tf-a-bl31-<board name>-<hardware security>-<boot chain>-<storage>.bin TF-A BL31 binary for FIP binaries creation │ │ └── [...] │ ├── ddr Trained DDR binary for FIP binaries creation │ │ ├── ddr_pmu-<board name>-<hardware security>-<boot chain>-<storage>.bin │ │ └── [...] │ ├── debug Debug binaries for TF-A │ │ ├── debug-tf-a-<board name>-<hardware security>-<boot chain>-<storage>.stm32 Debug file for FSBL │ │ ├── tf-a-bl2-<soc name>-<boot chain>-<storage>.elf Debug symbol file for TF-A │ │ └── [...] │ ├── fwconfig TF-A device tree for FIP binaries creation │ │ ├── <board name>-<hardware security>-fwconfig-<boot chain>-<storage>.dtb │ │ └── [...] │ ├── metadata.bin Meta data binary for METADATA partition for the supported boards │ ├── tf-a-<board name>-<hardware security>-<boot chain>-<storage>.stm32 TF-A binary for FSBL partition │ └── [...] ├── arm-trusted-firmware-m TF-M binaries │ ├── debug Debug binaries for TF-M │ │ ├── tfm-<board name>-<hardware security>_s.elf Debug symbol file for TF-M │ │ └── [...] │ ├── tfm-<board name>-<hardware security>_s.bin TF-M binary for m33 firmware as copro │ └── [...] ├── fip FIP binaries for FIP partitions and supported boot chains │ ├── fip-<board name>-<hardware security>-ddr-<boot chain>-<storage>.bin FIP binary for FIP DDR partition │ ├── fip-<board name>-<hardware security>-<boot chain>-<storage>.bin FIP binary for FIP partition │ └── [...] ├── flashlayout_st-image-weston Flash layout files (description of the partitions) for the supported boot chains on supported boot devices and boards │ ├── [...] │ ├── extensible Flash layout files for microSD card boot device with no userfs partition but a rootfs partition extended to microSD card size │ │ ├── FlashLayout_sdcard_<board name>-<hardware security>-extensible.tsv (recommended setup for package repository service) microSD card boot device with rootfs partition extended to microSD card size │ │ └── [...] │ ├── fastboot Flash layout files for flashing via fastboot with optee boot chain │ │ ├── FlashLayout_<boot device>_<board name>-<hardware security>-fastboot.tsv │ │ └── [...] │ ├── fastboot-opteemin Flash layout files for flashing via fastboot with opteemin boot chain │ │ ├── FlashLayout_<boot device>_<board name>-<hardware security>-fastboot-opteemin.tsv │ │ └── [...] │ ├── optee Flash layout files for optee boot chain │ │ ├── FlashLayout_<boot device>_<board name>-<hardware security>-optee.tsv │ │ └── [...] │ └── opteemin Flash layout files for opteemin boot chain │ ├── FlashLayout_<boot device>_<board name>-<hardware security>-opteemin.tsv │ └── [...] ├── Kernel Debug binaries for Linux kernel │ ├── config-6.6.78 Reference config file for Linux kernel │ └── vmlinux Image of the Linux kernel ├── optee OPTEE-OS binaries │ ├── debug Debug binaries for OPTEE-OS │ │ ├── tee-<board name>-<hardware security>-<boot chain>.elf Debug symbol file for OPTEE-OS │ │ ├── tee-<board name>-<hardware security>-<boot chain>-programmer.elf Debug symbol file for OPTEE-OS configured for usb/serial │ │ └── [...] │ ├── tee-header_v2-<board name>-<hardware security>-<boot chain>.bin OPTEE-OS binary for FIP binaries creation (FIP partition) │ ├── tee-header_v2-<board name>-<hardware security>-<boot chain>-programmer.bin OPTEE-OS binary for FIP binaries creation (FIP-BOOT partition) │ ├── tee-pageable_v2-<board name>-<hardware security>-<boot chain>.bin OPTEE-OS binary for FIP binaries creation (FIP partition) │ ├── tee-pageable_v2-<board name>-<hardware security>-<boot chain>-programmer.bin OPTEE-OS binary for FIP binaries creation (FIP-BOOT partition) │ ├── tee-pager_v2-<board name>-<hardware security>-<boot chain>.bin OPTEE-OS binary for FIP binaries creation (FIP partition) │ ├── tee-pager_v2-<board name>-<hardware security>-<boot chain>-programmer.bin OPTEE-OS binary for FIP binaries creation (FIP-BOOT partition) │ └── [...] ├── scripts │ └── create_sdcard_from_flashlayout.sh ├── u-boot U-BOOT binaries │ ├── debug Debug binaries for U-BOOT │ │ ├── u-boot-<soc name>-<u-boot config>.elf Debug symbol file for U-BOOT │ │ └── [...] │ ├── configuration-<soc name>-<u-boot config>_defconfig Reference configuration file for U-Boot │ ├── u-boot-nodtb-<soc name>-<u-boot config>.bin U-BOOT binary for FIP binaries creation │ ├── u-boot-<board name>-<hardware security>-<u-boot config>.dtb U-BOOT device tree for FIP binaries creation │ └── [...] ├── st-image-bootfs-openstlinux-weston-stm32mp2.bootfs.ext4 Binary for bootfs partition on eMMC and microSD card devices ├── st-image-bootfs-openstlinux-weston-stm32mp2.bootfs.manifest ├── st-image-bootfs-efi-openstlinux-weston-stm32mp2.bootfs.vfat Binary for bootfs for EFI partition on eMMC and microSD card devices ├── st-image-bootfs-efi-openstlinux-weston-stm32mp2.bootfs.manifest ├── st-image-userfs-openstlinux-weston-stm32mp2.userfs.ext4 Binary for userfs partition on eMMC and microSD card devices ├── st-image-userfs-openstlinux-weston-stm32mp2.userfs.manifest ├── st-image-vendorfs-openstlinux-weston-stm32mp2.vendorfs.ext4 Binary for vendorfs partition on eMMC and microSD card devices ├── st-image-vendorfs-openstlinux-weston-stm32mp2.vendorfs.manifest ├── st-image-weston-openstlinux-weston-stm32mp2.rootfs.ext4 Binary for rootfs partition on eMMC and microSD card devices ├── st-image-weston-openstlinux-weston-stm32mp2.rootfs.license ├── st-image-weston-openstlinux-weston-stm32mp2.rootfs-license_content.html License summary for all packages needed to feed all partitions ├── st-image-weston-openstlinux-weston-stm32mp2.rootfs.manifest └── [...]
Description:
<soc name>: * stm32mp21 * stm32mp23 * stm32mp25 <board name>: * stm32mp215-df, stm32mp235f-dk, stm32mp257f-dk, stm32mp257f-ev1 <hardware security>: * if nothing declared then there is a minimal hardware configuration for RIFF profile OPEN * ca35tdcid-ostl custom hardware configuration (can be different following use-case and hardware) for RIFF profile CUSTOM (CLOSED) * ca35tdcid-ostl-m33-examples custom hardware configuration (can be different following use-case and hardware) for RIFF profile CUSTOM (CLOSED) <boot chain>: * fastboot optee boot chain for flashing via fastboot * fastboot-opteemin opteemin boot chain for flashing via fastboot * optee optee boot chain * opteemin opteemin boot chain <storage>: * emmc eMMC storage * nand NAND storage * nor NOR storage * programmer-uart storage programmation via UART * programmer-usb storage programmation via USB * sdcard microSD card storage <boot device>: * emmc boot via emmc storage * nand-4-256-1024 (nand-x-y-z) boot via nand storage * nand-4-256-1024-sdcard boot via nand storage for first stage (fsbl, fip) and files system are located on sdcard * nor boot via nor storage * nor-sdcard boot via nor storage for first stage (fsbl, fip) and files system are located on sdcard * sdcard boot via sdcard storage * sdcard-EFI boot via sdcard but bootfs is configurated on EFI <u-boot config>: * default * fastboot-emmc Fastboot config enabled with MMC_DEV Id for emmc * fastboot-sdcard Fastboot config enabled with MMC_DEV Id for sdcard * programmer Programmer config enabled
For M33-TD flavor
- The STM32MP2 image (binaries) is delivered through one tarball file named en.FLASH-stm32mp2-m33td-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11.tar.gz applicable to STM32MP215F-DK and STM32MP257x-EV1
- Download and install the STM32MP2 image (binaries):
The software package is provided AS IS, and by downloading it, you agree to be bound to the terms of the software license agreement (SLA0048). The detailed content licenses can be found here.
| STM32MP2 Starter Package image - STM32MP2-Ecosystem-v6.1.0 release for M33-TD flavor
| |
|---|---|
| Download |
Go on st.com to download the STM32MP2 Starter Package image, en.FLASH-stm32mp2-m33td-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11.tar.gz file. |
| Installation |
cd <working directory path>/Starter-Package
tar xvf en.FLASH-stm32mp2-m33td-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11.tar.gz |
| Release note |
Details of the content of this software package are available in the associated STM32 MPU OpenSTLinux release note. |
- The binaries and the Flash layout files are in the <Starter Package installation directory>/stm32mp2-m33td-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11/images/stm32mp2-m33td/ directory. The most important ones are:
stm32mp2-m33td ├── arm-trusted-firmware TF-A binaries for FSBLa partitions and supported boot chains │ ├── bl2 TF-A BL2 binary for FIP binaries creation │ │ ├── tf-a-<board name>-<hardware security>-<boot chain>-<storage>.bin │ │ └── [...] │ ├── bl31 TF-A BL31 binary for FIP binaries creation │ │ ├── debug Debug binaries for BL31 │ │ │ ├── tf-a-bl31-<board name>-<hardware security>-<boot chain>-<storage>.elf Debug symbol file for TF-A BL31 │ │ │ └── [...] │ │ ├── <board name>-<hardware security>-<boot chain>-<storage>.dtb TF-A BL31 device tree for FIP binaries creation │ │ ├── tf-a-bl31-<board name>-<hardware security>-<boot chain>-<storage>.bin TF-A BL31 binary for FIP binaries creation │ │ └── [...] │ ├── ddr Trained DDR binary for FIP binaries creation │ │ ├── ddr_pmu-<board name>-<hardware security>-<boot chain>-<storage>.bin │ │ └── [...] │ ├── debug Debug binaries for TF-A │ │ ├── debug-tf-a-<board name>-<hardware security>-<boot chain>-<storage>.stm32 Debug file for FSBL │ │ ├── tf-a-bl2-<soc name>-<boot chain>-<storage>.elf Debug symbol file for TF-A │ │ └── [...] │ ├── fwconfig TF-A device tree for FIP binaries creation │ │ ├── <board name>-<hardware security>-fwconfig-<boot chain>-<storage>.dtb │ │ └── [...] │ ├── metadata.bin Meta data binary for METADATA partition for the supported boards │ ├── tf-a-<board name>-<hardware security>-<boot chain>-<storage>.stm32 TF-A binary for FSBL partition │ └── [...] ├── arm-trusted-firmware-m TF-M binaries for FSBLm partitions and supported boot chains │ ├── debug Debug binaries for TF-M │ │ ├── debug-bl2-<board name>-<hardware security>.stm32 Debug file for FSBLm │ │ ├── tfm-<board name>-<hardware security>-<storage m33>-<storage a35>_s.elf Debug symbol file for TF-M │ │ └── [...] │ ├── key Security key used by TF-M │ │ ├── image_ns_signing_public_key-<board name>-<hardware security>-<storage m33>.pem │ │ ├── image_s_signing_private_key-<board name>-<hardware security>-<storage m33>.pem │ │ ├── image_s_signing_public_key-<board name>-<hardware security>-<storage m33>.pem │ │ └── [...] │ ├── bl2-<board name>-<hardware security>-<storage m33>.stm32 TF-M binary for FSBLm partition │ ├── ddr_phy_signed-<board name>-<hardware security>-<storage m33>.bin TF-M binary for M33ddr partition │ └── [...] ├── arm-trusted-firmware-m-cube TF-M/CubeMp2 binaries for M33FW partitions and supported boot chains │ ├── debug Debug binaries for TF-M/CubeMp2 │ │ ├── tfm-starterapp-<board name>-<hardware security>-<storage m33>-<storage a35>_CM33_NonSecure.elf Debug symbol file for TF-m/CubeMp2 │ │ └── [...] │ ├── tf-m-starterapp-<board name>-<hardware security>-<storage m33>-<storage a35>_s_ns.bin TF-M/CubeMP2 binary for M33FW partition │ └── [...] ├── fip FIP binaries for FIP partitions and supported boot chains │ ├── fip-<board name>-<hardware security>-ddr-<boot chain>-<storage>.bin FIP binary for FIP DDR partition │ ├── fip-<board name>-<hardware security>-<boot chain>-<storage>.bin FIP binary for FIP partition │ └── [...] ├── flashlayout_st-image-weston Flash layout files (description of the partitions) for the supported boot chains on supported boot devices and boards │ ├── [...] │ ├── extensible Flash layout files for microSD card boot device with no userfs partition but a rootfs partition extended to microSD card size │ │ ├── FlashLayout_sdcard_<board name>-<hardware security>-extensible.tsv (recommended setup for package repository service) microSD card boot device with rootfs partition extended to microSD card size │ │ └── [...] │ └── optee Flash layout files for optee boot chain │ ├── FlashLayout_<boot device>_<board name>-<hardware security>-optee.tsv │ └── [...] ├── Kernel Debug binaries for Linux kernel │ ├── config-6.6.78 Reference config file for Linux kernel │ └── vmlinux Image of the Linux kernel ├── optee OPTEE-OS binaries │ ├── debug Debug binaries for OPTEE-OS │ │ ├── tee-<board name>-<hardware security>-<boot chain>.elf Debug symbol file for OPTEE-OS │ │ ├── tee-<board name>-<hardware security>-<boot chain>-programmer.elf Debug symbol file for OPTEE-OS configured for usb/serial │ │ └── [...] │ ├── tee-header_v2-<board name>-<hardware security>-<boot chain>.bin OPTEE-OS binary for FIP binaries creation (FIP partition) │ ├── tee-header_v2-<board name>-<hardware security>-<boot chain>-programmer.bin OPTEE-OS binary for FIP binaries creation (FIP-BOOT partition) │ ├── tee-pageable_v2-<board name>-<hardware security>-<boot chain>.bin OPTEE-OS binary for FIP binaries creation (FIP partition) │ ├── tee-pageable_v2-<board name>-<hardware security>-<boot chain>-programmer.bin OPTEE-OS binary for FIP binaries creation (FIP-BOOT partition) │ ├── tee-pager_v2-<board name>-<hardware security>-<boot chain>.bin OPTEE-OS binary for FIP binaries creation (FIP partition) │ ├── tee-pager_v2-<board name>-<hardware security>-<boot chain>-programmer.bin OPTEE-OS binary for FIP binaries creation (FIP-BOOT partition) │ └── [...] ├── scripts │ └── create_sdcard_from_flashlayout.sh ├── u-boot U-BOOT binaries │ ├── debug Debug binaries for U-BOOT │ │ ├── u-boot-<soc name>-<u-boot config>.elf Debug symbol file for U-BOOT │ │ └── [...] │ ├── configuration-<soc name>_defconfig Reference configuration file for U-Boot │ ├── u-boot-nodtb-<soc name>-<u-boot config>.bin U-BOOT binary for FIP binaries creation │ ├── u-boot-<board name>-<hardware security>-<u-boot config>.dtb U-BOOT device tree for FIP binaries creation │ └── [...] ├── st-image-bootfs-openstlinux-weston-stm32mp2-m33td.bootfs.ext4 Binary for bootfs partition on eMMC and microSD card devices ├── st-image-bootfs-openstlinux-weston-stm32mp2-m33td.bootfs.manifest ├── st-image-userfs-openstlinux-weston-stm32mp2-m33td.userfs.ext4 Binary for userfs partition on eMMC and microSD card devices ├── st-image-userfs-openstlinux-weston-stm32mp2-m33td.userfs.manifest ├── st-image-vendorfs-openstlinux-weston-stm32mp2-m33td.vendorfs.ext4 Binary for vendorfs partition on eMMC and microSD card devices ├── st-image-vendorfs-openstlinux-weston-stm32mp2-m33td.vendorfs.manifest ├── st-image-weston-openstlinux-weston-stm32mp2-m33td.rootfs.ext4 Binary for rootfs partition on eMMC and microSD card devices ├── st-image-weston-openstlinux-weston-stm32mp2-m33td.rootfs.license ├── st-image-weston-openstlinux-weston-stm32mp2-m33td.rootfs-license_content.html License summary for all packages needed to feed all partitions ├── st-image-weston-openstlinux-weston-stm32mp2-m33td.rootfs.manifest └── [...]
Description:
<soc name>: * stm32mp21 * stm32mp25 <board name>: * stm32mp215-df, stm32mp257f-ev1 <hardware security>: * if nothing declared then there is a minimal hardware configuration for RIFF profile OPEN * cm33tdcid-ostl custom hardware configuration (can be different following use-case and hardware) for RIFF profile CUSTOM (CLOSED) * cm33tdcid-ostl-serial-ca35tdcid specific configuration used for programmation <boot chain>: * optee optee boot chain <storage>: * emmc eMMC storage * nor NOR storage * programmer-uart storage programmation via UART * programmer-usb storage programmation via USB * sdcard microSD card storage <storage a35>: * emmc eMMC storage * nor NOR storage * sdcard microSD card storage <storage m33>: * emmc eMMC storage * nor NOR storage * sdcard microSD card storage <boot device>: * emmc boot Cortex M33 via emmc storage and Cortex A35 via emmc storage * nor-emmc boot Cortex M33 via nor storage and Cortex A35 via emmc storage * nor-nor-sdcard boot Cortex M33 via nor storage and Cortex A35 via nor storage for first stage (fsbl, fip) and files system are located on sdcard storage * nor-sdcard boot Cortex M33 via nor storage and Cortex A35 via sdcard * sdcard boot Cortex M33 via sdcard storage and Cortex A35 via sdcard storage <u-boot config>: * default * programmer Programmer config enabled
6.2. Image flashing[edit | edit source]
The STM32CubeProgrammer tool is used to flash the STM32MP25 Evaluation board with the downloaded image.
Several flash devices (microSD, eMMC...) are available on this board: see the STM32 MPU Flash mapping article to know more about the supported flash memory technologies, and the flash partitions. The steps below consider the microSD card as the flash device.
As explained in the boot chain overview, the trusted boot chain is the default solution delivered by STMicroelectronics. Thus, the steps below use the image for the optee boot chain.
Let's flash the downloaded image on the microSD card:
- Set the boot switches to the off position (boot from UART/USB):
- Connect the USB type-C (OTG) port (4) to the host PC that contains the downloaded image.
- Insert the delivered microSD card into the dedicated slot (5).
- Connect the USB type-C (power supply) port (1) to the power connector or a host PC (and check the power jumper position).
- Press the reset button (7) to reset the board:
- Go to the Starter Package directory that contains the binaries and the flash layout files
cd <Starter Package installation directory>/stm32mp2-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11/images/stm32mp2
If you have followed the the proposition to organize the working directory, the command is cd Starter-Package/stm32mp2-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11/images/stm32mp2
 Information
|
| The commands below are for a Linux host PC; however, they are similar for a Windows host PC except that STM32_Programmer_CLI is replaced by STM32_Programmer_CLI.exe. |
- Check that the STM32CubeProgrammer tool is installed and accessible; if not, go to the installation procedure (installing the tools):
STM32_Programmer_CLI --h
-------------------------------------------------------------------
STM32CubeProgrammer <tool version>
-------------------------------------------------------------------
- Get the device port location for the USB link:
STM32_Programmer_CLI -l usb
-------------------------------------------------------------------
STM32CubeProgrammer <tool version>
-------------------------------------------------------------------
===== DFU Interface =====
Total number of available STM32 device in DFU mode: 1
Device Index : USB1
USB Bus Number : 003
USB Address Number : 002
Product ID : DFU in HS Mode @Device ID /0x505, @Revision ID /0x100
Serial number : 003A00423836500B00343046
Firmware version : 0x0110
Device ID : 0x0505
- Flash the microSD card with the image for the trusted boot chain:
STM32_Programmer_CLI -c port=usb1 -w flashlayout_st-image-weston/optee/FlashLayout_sdcard_stm32mp257c-ev1-optee.tsv
- This operation takes several minutes (mainly depending of the rootfs size). A successful flashing outputs the following log:
| Information
|
| Please note that the logs that you will obtain, might be slightly different, especially if you use a different software release. |
-------------------------------------------------------------------
STM32CubeProgrammer <tool version>
-------------------------------------------------------------------
USB speed : High Speed (480MBit/s)
Manuf. ID : STMicroelectronics
Product ID : DFU in HS Mode @Device ID /0x505, @Revision ID /0x100
SN : 003A00423836500B00343046
DFU protocol: 1.1
Board : --
Device ID : 0x0505
Start Embedded Flashing service
Memory Programming ...
Opening and parsing file: tf-a-stm32mp257f-ev1-usb.stm32
File : tf-a-stm32mp257f-ev1--usb.stm32
Size : 204.38 KB
Partition ID : 0x01
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:02.315
RUNNING Program ...
PartID: :0x01
Reconnecting the device ...
USB speed : High Speed (480MBit/s)
Manuf. ID : STMicroelectronics
Product ID : DFU @Device ID /0x505, @Revision ID /0x1000, @Name /STM32MP257FAI Rev.A,
SN : 003A00423836500B00343046
DFU protocol: 1.1
Board : --
Device ID : 0x0505
Device name : STM32MP257FAI Rev.A
Device type :
Device CPU :
Start operation done successfully at partition 0x01
Memory Programming ...
Opening and parsing file: fip-stm32mp257f-ev1-ddr.bin
File : fip-stm32mp257f-ev1-ddr.bin
Size : 29.38 KB
Partition ID : 0x02
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:00.015
RUNNING Program ...
PartID: :0x02
Reconnecting the device ...
USB speed : High Speed (480MBit/s)
Manuf. ID : STMicroelectronics
Product ID : DFU @Device ID /0x505, @Revision ID /0x1000, @Name /STM32MP257FAI Rev.A,
SN : 003A00423836500B00343046
DFU protocol: 1.1
Board : --
Device ID : 0x0505
Device name : STM32MP257FAI Rev.A
Device type :
Device CPU :
Start operation done successfully at partition 0x02
Memory Programming ...
Opening and parsing file: fip-stm32mp257f-ev1-optee.bin
File : fip-stm32mp257f-ev1-optee.bin
Size : 2.44 MB
Partition ID : 0x03
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:02.184
RUNNING Program ...
PartID: :0x03
Reconnecting the device ...
USB speed : High Speed (480MBit/s)
Manuf. ID : STMicroelectronics
Product ID : USB download gadget@Device ID /0x505, @Revision ID /0x1000, @Name /STM32MP257FAI Rev.A,
SN : 003A00423836500B00343046
DFU protocol: 1.1
Board : --
Device ID : 0x0505
Device name : STM32MP257FAI Rev.A
Device type :
Device CPU :
Start operation done successfully at partition 0x03
Flashlayout Programming ...
[==================================================] 100%
Running Flashlayout Partition ...
Reconnecting the device ...
USB speed : High Speed (480MBit/s)
Manuf. ID : STMicroelectronics
Product ID : USB download gadget@Device ID /0x505, @Revision ID /0x1000, @Name /STM32MP257FAI Rev.A,
SN : 003A00423836500B00343046
DFU protocol: 1.1
Board : --
Device ID : 0x0505
Device name : STM32MP257FAI Rev.A
Device type :
Device CPU :
Flashlayout partition started successfully
Memory Programming ...
Opening and parsing file: tf-a-stm32mp257f-ev1-sdcard.stm32
File : tf-a-stm32mp257f-ev1-sdcard.stm32
Size : 207.66 KB
Partition ID : 0x04
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:00.088
RUNNING Program ...
PartID: :0x04
Start operation done successfully at partition 0x04
Memory Programming ...
Opening and parsing file: tf-a-stm32mp257f-ev1-sdcard.stm32
File : tf-a-stm32mp257f-ev1-sdcard.stm32
Size : 207.66 KB
Partition ID : 0x05
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:00.089
RUNNING Program ...
PartID: :0x05
Start operation done successfully at partition 0x05
Memory Programming ...
Opening and parsing file: metadata.bin
File : metadata.bin
Size : 96.00 B
Partition ID : 0x06
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:00.006
RUNNING Program ...
PartID: :0x06
Start operation done successfully at partition 0x06
Memory Programming ...
Opening and parsing file: metadata.bin
File : metadata.bin
Size : 96.00 B
Partition ID : 0x07
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:00.006
RUNNING Program ...
PartID: :0x07
Start operation done successfully at partition 0x07
Memory Programming ...
Opening and parsing file: fip-stm32mp257f-ev1-optee.bin
File : fip-stm32mp257f-ev1-optee.bin
Size : 2.44 MB
Partition ID : 0x08
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:00.984
RUNNING Program ...
PartID: :0x08
Start operation done successfully at partition 0x08
Memory Programming ...
Opening and parsing file: st-image-bootfs-openstlinux-weston-stm32mp2.ext4
File : st-image-bootfs-openstlinux-weston-stm32mp2.ext4
Size : 64.00 MB
Partition ID : 0x10
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:28.705
RUNNING Program ...
PartID: :0x10
Start operation done successfully at partition 0x10
Memory Programming ...
Opening and parsing file: st-image-vendorfs-openstlinux-weston-stm32mp2.ext4
File : st-image-vendorfs-openstlinux-weston-stm32mp2.ext4
Size : 48.00 MB
Partition ID : 0x11
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:21.442
RUNNING Program ...
PartID: :0x11
Start operation done successfully at partition 0x11
Memory Programming ...
Opening and parsing file: st-image-weston-openstlinux-weston-stm32mp2.ext4
File : st-image-weston-openstlinux-weston-stm32mp2.ext4
Size : 746.66 MB
Partition ID : 0x12
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:05:39.847
RUNNING Program ...
PartID: :0x12
Start operation done successfully at partition 0x12
Memory Programming ...
Opening and parsing file: st-image-userfs-openstlinux-weston-stm32mp2.ext4
File : st-image-userfs-openstlinux-weston-stm32mp2.ext4
Size : 128.00 MB
Partition ID : 0x13
Download in Progress:
[==================================================] 100%
File download complete
Time elapsed during download operation: 00:00:58.746
RUNNING Program ...
PartID: :0x13
Start operation done successfully at partition 0x13
Flashing service completed successfully
See theSTM32CubeProgrammer article:
- to use another Flash device than the microSD card one.
- to know more about the flashing operation.
6.3. Image flashing via raw image[edit | edit source]
The script create_sdcard_from_flashlayout.sh present with the downloaded image permit to generate a raw image ready to flash microSD on the STM32MP25 Evaluation board.
Let's generate raw image and flash it on the microSD card:
- Get the downloaded image.
- call the script create_sdcard_from_flashlayout.sh with the flashlayout of STM32MP25 Evaluation board as parameter.
./scripts/create_sdcard_from_flashlayout.sh flashlayout_st-image-weston/optee/FlashLayout_sdcard_stm32mp257f-ev1-optee.tsv
- Flash the microSD from the Linux PC via a dd command. Follow the instruction available at the end of execution of create_sdcard_from_flashlayout.sh script.
dd if=FlashLayout_sdcard_stm32mp257f-ev1-optee.raw of=<microSD destination> bs=8M conv=fdatasync status=progress
For more information, refer to How to populate the SD card with dd command.
7. Booting the board[edit | edit source]
When the image has been programmed on the STM32MP257x-EV1 Evaluation board, it is time to finalize the system configuration:
- Step 0: check that the LVDS display board is connected correctly.
- Step 1: check the configuration of the switches and jumpers:
- The boot-related switches must be configured so the device (for example, a microSD™ card) on which the image has been programmed is selected as the boot source.
The figures below show the boot switches for the recommended boot from microSD card. Select the one corresponding to your TD flavor (A35-TD or M33-TD) choice:
- Step 2 (optional): connect a USB keyboard and/or a USB mouse (not provided) using the USB type-A ports (#3 in the image below).
- Step 3 (optional): connect an Ethernet cable (not provided) to the dedicated connector (#2 in the image below).
- Step 4: if the flash memory device is a microSD™ card, check that it is inserted into the dedicated slot (#5 in the image above).
- Step 5: connect one of the following (and check the power jumper position):
- USB Power – Type-C® cable to the connector (#1 in the image above).
- Power supply (5V, 3A) to the power connector (#6 in the image above) of the MB1936 board.
- Step 6 (optional): install and configure a remote Terminal program (such as Minicom on Linux Ubuntu or Tera Term on Windows) on the host computer and connect the ST-LINK/V3 USB Type-C® port (#1 in the image above) to a host computer that runs a terminal program with the ST-LINK/V3 virtual port.
- Step 7: press the reset button (#7 in the image above) to reset the board .
The board boots and the system is available after a few seconds.
8. Checking the boot sequence[edit | edit source]
Assuming you have performed the optional step 6 above, the information (coming successively from the TF-A, OP-TEE OS, U-Boot and the Linux operating system that is booting on the board), should be displayed on the host PC Terminal.
| Information
|
| The information displayed below might differ from that on your own application, and should just be considered as an example. |
In parallel, a U-Boot splash screen picture is displayed on the board display (if one is connected to the board).
A user space graphical boot splash screen (PSplash) picture is then briefly displayed on the board display (if one is connected to the board).
When the boot process is complete, the launcher application is shown on the board display (if one is connected to the board).
More detail about this launcher application in GTK demo launcher page.
9. Mouse, keyboard and Ethernet hot-plugs[edit | edit source]
Let's assume that the optional step 2 and step 3 were not achieved when setting up the system above.
When connecting a USB mouse, the following information is displayed by the Terminal program:
[ 926.786326] usb 2-1.1: new low-speed USB device number 3 using ehci-platform
[ 926.961413] input: Logitech Optical USB Mouse as /devices/platform/soc/5800d000.usbh-ehci/usb2/2-1/2-1.1/2-1.1:1.0/0003:046D:C016.0001/input/input2
[ 926.975098] hid-generic 0003:046D:C016.0001: input: USB HID v1.10 Mouse [Logitech Optical USB Mouse] on usb-5800d000.usbh-ehci-1.1/input0
When connecting a USB keyboard, the following information is displayed by the Terminal program:
[ 1009.026567] usb 2-1.3: new low-speed USB device number 4 using ehci-platform
[ 1009.193990] input: Dell Dell USB Keyboard as /devices/platform/soc/5800d000.usbh-ehci/usb2/2-1/2-1.3/2-1.3:1.0/0003:413C:2003.0002/input/input3
[ 1009.280101] hid-generic 0003:413C:2003.0002: input: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-5800d000.usbh-ehci-1.3/input0
When connecting an Ethernet cable, the following information is displayed by the Terminal program:
[ 1215.356377] stm32-dwmac 5800a000.ethernet end0: Link is Up - 1Gbps/Full - flow control rx/tx [ 1215.363377] IPv6: ADDRCONF(NETDEV_CHANGE): end0: link becomes ready [ 1215.391068] Link is Up - 1000/Half
10. Remote and local Terminal programs[edit | edit source]
As already explained in the step 6 above, a remote Terminal program can be installed and configured on your host PC in order to communicate with the board through a serial link or an Ethernet link: see How to get Terminal.
The remote Terminal on your host PC can be used to enter command lines, as shown below with the ip command to query the network interface parameters:
A local Terminal program can be launched directly on the board. Click on the small icon at the top left corner of the display (see the red arrow on the figure below):
Then the on-board Wayland Terminal can be used to directly enter command lines as shown below, still with the ip addr command to query the network interface parameters:
Consequently, unless an explicit restriction is mentioned, command lines can be run from both Terminals.
Note: in this article, any command executed on the board (through the remote Terminal or the Wayland Terminal) starts with , while any command executed on the host PC starts with .
11. Executing basic commands[edit | edit source]
| Information
|
| The outputs of the commands executed below are examples; the outputs obtained might differ. |
11.1. Having a look at the OpenSTLinux directory structure[edit | edit source]
The directory structure and directory contents in the OpenSTLinux distribution is standard. Some details are available in the OpenSTLinux directory structure article.
11.2. Identifying the software running on board[edit | edit source]
| Information
|
| Obviously, what you obtain might differ from what is displayed on the Output example column. |
For ecosystem release v6.1.0 
[edit | edit source]
| Software | How to get its version | Output example |
|---|---|---|
| TF-A | TF-A Version number |
NOTICE: BL2: v2.10-stm32mp1-r2.0(debug):lts-v2.10.13-dirty |
| U-Boot | See the version displayed in the console |
2023.10-stm32mp-r2 [...] |
| Linux kernel |
cat /proc/version |
Linux version 6.6.78 (xxxx@yyyy) (aarch64-ostl-linux-gcc (GCC) 13.3.0, GNU ld (GNU Binutils) 2.42.0.20240723) [...] |
| GCC |
cat /proc/version |
Linux version 6.6.78 (xxxx@yyyy) (aarch64-ostl-linux-gcc (GCC) 13.3.0) [...] |
| Yocto Project |
grep DISTRO_CODENAME /etc/build |
DISTRO_CODENAME = scarthgap |
| Weston |
weston --version |
weston 13.0.1 |
| GStreamer |
gst-play-1.0 --version |
GStreamer 1.22.12 |
GPU (only on STM32MP25x lines  ) |
cat /sys/kernel/debug/gc/version |
6.4.21.1.1058597 built [...] |
11.3. Configuration tips[edit | edit source]
11.4. Getting board IP address[edit | edit source]
Prerequisite: your board is connected to your local network through the Ethernet connector (see step 3).
- Get the IP address of your board with the ip Linux command line (recommended method):
ip addr show end0 3: end0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff inet xx.xx.xx.xx/xx brd xx.xx.xx.xx scope global dynamic end0 valid_lft 159045sec preferred_lft 159045sec inet6 xxxx::xx:xx:xx:xx/xx scope link valid_lft forever preferred_lft forever
- Get the IP address of your board with the ifconfig Linux command line (a deprecated but well-known command):
ifconfig end0
end0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx
inet addr:xx.xx.xx.xx Bcast:xx.xx.xx.xx Mask:255.255.252.0
inet6 addr: xxxx::xx:xx:xx:xx/xx Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2619 errors:0 dropped:0 overruns:0 frame:0
TX packets:1311 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:353250 (344.9 KiB) TX bytes:118305 (115.5 KiB)
Interrupt:247
11.5. Copying a file from your host PC to your board (and reciprocally)[edit | edit source]
- How to transfer a file over network (recommended method)
11.6. Miscellaneous commands[edit | edit source]
| Information
|
| The outputs of the commands executed below are examples; the outputs that you obtain might differ. |
11.6.1. Printing distribution specific information[edit | edit source]
cat /etc/os-release ID=openstlinux-weston NAME="ST OpenSTLinux - Weston - (A Yocto Project Based Distro)" VERSION="5.0.8-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11 (Scarthgap)" VERSION_ID=5.0.8-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11 VERSION_CODENAME="scarthgap" PRETTY_NAME="ST OpenSTLinux - Weston - (A Yocto Project Based Distro) 5.0.8-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11 (Scarthgap)" CPE_NAME="cpe:/o:openembedded:openstlinux-weston:5.0.8-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11"
Where:
| ID | A lower-case string identifying the operating system |
| NAME | A string identifying the operating system |
| VERSION | A string identifying the operating system version, including a release code name |
| VERSION_ID | A lower case string identifying the operating system version |
| VERSION_CODENAME | Code name for the distribution |
| PRETTY_NAME | A full pretty name of the release |
| CPE_NAME | A CPE name for the operating system, following the Common Platform Enumeration Specification[1] |
11.6.2. Printing system information[edit | edit source]
uname -a Linux stm32mp2-XX-XX-XX 6.6.78 #1 SMP PREEMPT Mon Feb 17 08:40:43 UTC 2025 aarch64 GNU/Linux
Where:
| Linux | Kernel name |
| stm32mp2-XX-XX-XX | Network node hostname |
| 6.6.78 | Kernel release |
| #1 SMP PREEMPT Mon Feb 17 08:40:43 UTC 2025 | Kernel version |
| aarch64 | Machine hardware name |
| GNU/Linux | Operating system |
11.6.3. Printing Linux kernel and GCC versions[edit | edit source]
cat /proc/version Linux version 6.6.78 (oe-user@oe-host) (aarch64-ostl-linux-gcc (GCC) 13.3.0, GNU ld (GNU Binutils) 2.42.0.20240723) #1 SMP PREEMPT Mon Feb 17 08:40:43 UTC 2025
Where:
| Linux | Kernel name |
| version 6.6.78 | Kernel release |
| (xxxx@yyyy) | Person (xxxx) who compiled the kernel, and machine (yyyy) where it happened |
| (aarch64-ostl-linux-gcc (GCC) 13.3.0 ) | Version of the GCC compiler used to compile the kernel |
| #1 SMP PREEMPT Mon Feb 17 08:40:43 UTC 2025 | Kernel version; type of kernel (SMP) and date and time of the kernel compilation |
11.6.4. Printing the amount of disk space available on all mounted file systems[edit | edit source]
df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 116M 0 116M 0% /dev
/dev/mmcblk0p10 684M 453M 184M 72% /
tmpfs 195M 176K 195M 1% /dev/shm
tmpfs 78M 8.8M 70M 12% /run
tmpfs 4.0M 0 4.0M 0% /sys/fs/cgroup
tmpfs 195M 16K 195M 1% /tmp
/dev/mmcblk0p8 55M 39M 12M 77% /boot
/dev/mmcblk0p9 14M 5.9M 6.8M 47% /vendor
tmpfs 195M 96K 195M 1% /var/volatile
/dev/mmcblk0p11 14G 45M 13G 1% /usr/local
tmpfs 39M 4.0K 39M 1% /run/user/1000
tmpfs 39M 0 39M 0% /run/user/0
Where:
| Filesystem | Source of the mount point, usually a device |
| Size | Total size in human readable format (e.g. 1K, 234M, 2G) |
| Used | Used size in human readable format |
| Available | Available size in human readable format |
| Use% | Percentage of used size divided by the total size |
| Mounted on | Mount point |
Note: the user file system (userfs) and the boot file system (bootfs) are accessible respectively through the /usr/local mounting point, and the /boot mounting point (see Flash partitions for a description of the file systems).
12. Examples[edit | edit source]
12.1. Examples running on Cortex-A35[edit | edit source]
The table below gathers links towards articles proposing examples of peripherals usage.
| Link to the example |
|---|
| Playing an audio/video local file |
| Playing an audio/video stream |
| Displaying an image |
| Running a simple 3D example (GPU usage) |
| Displaying a fullscreen camera preview |
| Taking a picture |
12.2. Examples running on Cortex-M33[edit | edit source]
Refer to STM32CubeMP2 Package article.
13. Fast links to essential commands[edit | edit source]
If already familiar with the Starter Package for the Yocto-based OpenSTLinux embedded software, fast links to the essential commands are listed below.
| Information
|
| With the links below, you will be redirected to other articles; use the back button of your browser to come back to these fast links |
14. How to go further?[edit | edit source]
Now that the image is flashed on the STM32MP25 Evaluation board, it is possible to switch to the STM32MPU Developer Package, in order to modify or tune the Yocto-based OpenSTLinux embedded software with the development.
Arm® is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. 