The artificial intelligence expansion package contains Linux AI frameworks to enable AI application examples that could be run on STM32MP1 Series.
This package consists in an OpenEmbedded meta layer, named meta-st-stm32mpu-ai, to be added on top of the STM32MP1 Distribution Package. It brings a complete and coherent easy to build / install environment to take advantage of AI on STM32MP1 Series.
The meta layer contains frameworks, tools and applications to run AI examples. Different image flavors will be available targeting different use cases such as computer vision (CV).
1. Prerequisite[edit source]
Install the STM32MP1 Distribution Package, but do not initialize the OpenEmbedded environment (sourcing the envsetup.sh) before having installed the meta-st-stm32mpu-ai meta layer (see next chapter).
2. Installation of the meta layer[edit source]
- Clone following git repositories into <Distribution Package installation directory>/layers/meta-st
cd <Distribution Package installation directory>/layers git clone https://github.com/kraj/meta-clang -b thud cd <Distribution Package installation directory>/layers/meta-st git clone https://github.com/STMicroelectronics/meta-st-stm32mpu-ai.git -b thud
- Setup the build environment
cd ../.. DISTRO=openstlinux-weston MACHINE=stm32mp1 source layers/meta-st/scripts/envsetup.sh
- Add the new layers in that order
bitbake-layers add-layer ../layers/meta-clang bitbake-layers add-layer ../layers/meta-st/meta-st-stm32mpu-ai
3. Build the software image[edit source]
Different OpenSTLinux expansion packages are available to target different use cases. The following commands need to be executed in the build environment.
- X-LINUX-AI-CV for computer vision use case
- To have more information about this OpenSTLinux expansion package follow this link
- To build it, execute the following command:
bitbake st-image-ai-cv
4. Flash the built image[edit source]
Follow this link to know how to flash the built image.
5. Launch the AI software[edit source]
- Power up the board
- The AI demo launcher is displayed at the end of the boot sequence (it replaces the original GTK demo launcher application)
5.1. The AI demo launcher[edit source]
The AI demo launcher is a derivative of the GTK demo launcher application.
It is written in python3[1] and uses GTK[2] to display the user interface.
It allows to easily launch AI application examples.
A "single tap" on the touch screen or a "single click" with a mouse connected to the board is sufficient to launch the AI application.
The AI demo launcher is updated with the available examples according the built image.
If computer vision package is built, then AI demo launcher will contains the supported computer vision application examples.