Last edited 5 days ago

X-LINUX-AI Starter package

Applicable for STM32MP13x lines  STM32MP15x lines  STM32MP25x lines

1. Install from the OpenSTLinux AI package repository[edit | edit source]

Info white.png Information
The STMicroelectronics packages repository service is provided for evaluation purposes only, its content may be updated at any time without notice and is therefore not approved for use in production.

All the generated X-LINUX-AI packages are available from the OpenSTLinux AI package repository service hosted at the non-browsable URL http://extra.packages.openstlinux.st.com/AI.

This repository contains AI packages that can be simply installed using apt-* utilities, which the same as those used on a Debian system:

  • the main group contains the selection of AI packages whose installation is automatically tested by STMicroelectronics
  • the updates group is reserved for future uses such as package revision update.

You can install them individually or by package group.

2. Material needed[edit | edit source]

To use the X-LINUX-AI OpenSTLinux Expansion Package, choose one of the following materials:

  • STM32MP257F-EV1 Evaluation board More info green.png + a Sony™ IMX335 5Mpx sensor
  • STM32MP257F-DK Discovery kit More info green.png + a Sony™ IMX335 5Mpx sensor
  • STM32MP157F-DK2 Discovery kit More info green.png + an UVC USB WebCam
  • STM32MP157F-EV1 Evaluation board More info green.png with the built in camera module: MB1379 (OmniVision OV5640 parallel camera)
  • STM32MP135F-DK Discovery kit More info green.png with the built in camera module: MB1897 (GalaxyCore 2145 parallel camera)

Optional:

  • Coral USB Edge TPU™[1] accelerator

3. Prerequisites[edit | edit source]

  • Flash the Starter Package on your SDCard
For OpenSTLinux ecosystem release v5.1.0 :
Select and follow the correct Starter Package procedure based on the board used
As example:
For STM32MP257x-EV, follow this Starter Package procedure
For STM32MP157x-DK2, follow this Starter Package procedure
  • Your board has an internet connection either through the network cable or through a WiFi connection.
Info white.png Information

If your internet access depends on a proxy server, you should define the http_proxy environment variable with the following command before any apt-* commands:

export http_proxy='http://<proxy url>:<proxy port>/'

4. Boot the OpenSTlinux Starter Package[edit | edit source]

At the end of the boot sequence, the demo launcher application appears on the screen.

Demo launcher appearance when X-LINUX-AI is not installed

5. Install the X-LINUX-AI tool[edit | edit source]

Once the board is booted, execute the following command in the console in order to download X-LINUX-AI tool package from OpenSTLinux package repository:


For ecosystem release v5.1.0 :

  • Synchronize the OpenSTLinux package repository.
apt-get update
  • Install X-LINUX-AI tool package:
apt-get install x-linux-ai-tool 
  • Synchronize the X-LINUX-AI package repository.
apt-get update
  • Check that X-LINUX-AI is properly installed:
x-linux-ai -v
X-LINUX-AI version: 5.1.0
Info white.png Information
The x-linux-ai binary (installed in the /usr/bin directory) allows to recover information on the X-LINUX-AI delivery, like version, features, supported applications. It is also used for package management, please refer to the dedicated wiki page for more information.

6. Install AI packages[edit | edit source]

Warning white.png Warning
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.

6.1. Install X-LINUX-AI demonstration packages[edit | edit source]

To get started with X-LINUX-AI, it is recommended to install the X-LINUX-AI demonstration package, which provides all the AI frameworks, applications examples, tools and utilities optimized for the specific target used.

Command Description
 x-linux-ai -i packagegroup-x-linux-ai-demo 
Install the X-LINUX-AI demonstration packages which provide AI frameworks, application examples and tools dedicated to the board used.

After having installed the x-linux-ai-tool you can install the X-LINUX-AI demonstration packages.

x-linux-ai -i packagegroup-x-linux-ai-demo

And restart the demo launcher:

systemctl restart weston-graphical-session.service

6.2. [OPTIONAL] Going further with X-LINUX-AI package management[edit | edit source]

6.2.1. Install X-LINUX-AI package-group[edit | edit source]

In addition with the X-LINUX-AI demonstration package, there are also other groups of packages dedicated to providing all the necessary packages and tools for a specific artificial intelligence functionality named "packagegroup".

The available packagegroups are the following:

  • packagegroup-x-linux-ai-demo: Default packagegroup provinding for X-LINUX-AI expansion package evaluation.
  • packagegroup-x-linux-ai-npu: Provide minimal packages to address NN hardware acceleration on NPU for STM32MP2 series' boards More info green.png.
  • packagegroup-x-linux-ai-<tflite/onnxruntime/coral>: Provide packages and tools dedicated to a specific AI frameworks like TensorFlow Lite, ONNX and Coral.
  • packagegroup-x-linux-ai: Packagegroup used to install all the packages available in X-LINUX-AI for the target used.
Command Description
x-linux-ai -i packagegroup-x-linux-ai-demo
Install X-LINUX-AI demonstration packages which provide AI frameworks, application examples and tools dedicated to the board used.
x-linux-ai -i packagegroup-x-linux-ai-npu
Install X-LINUX-AI packages allowing to use OpenVX stack for the NPU hardware acceleration (including application samples)
x-linux-ai -i packagegroup-x-linux-ai-tflite
Install X-LINUX-AI packages related to TensorFlow™ Lite framework (including application samples)
x-linux-ai -i packagegroup-x-linux-ai-coral
Install X-LINUX-AI packages related to the Coral Edge TPU™ framework (including application samples)
x-linux-ai -i packagegroup-x-linux-ai-onnxruntime
Install X-LINUX-AI packages related to ONNX Runtime™ (including application samples)
x-linux-ai -i packagegroup-x-linux-ai
Install all X-LINUX-AI packages available for the target

6.2.2. Install X-LINUX-AI individual packages[edit | edit source]

To be able to list or manage all the X-LINUX-AI individual packages available please refer to the dedicated X-LINUX-AI Tool article

7. Launch an AI application sample[edit | edit source]

Once the demo launcher is restarted, notice that it is slightly different because new AI application samples have been installed.
The demo launcher has the following appearance, and you can navigate into the different screens by using the NEXT or BACK buttons.

7.1. For STM32MP25x lines[edit | edit source]

Demo launcher appearance when X-LINUX-AI is installed on MP25x

7.2. For STM32MP1 series[edit | edit source]

Demo launcher appearance when X-LINUX-AI is installed on MP25x

The demo launcher now contain AI application samples that are described within dedicated article available in the X-LINUX-AI application samples page.

7.3. Enjoy running your own NN models[edit | edit source]

The above examples provide application samples to demonstrate how to execute models easily on the STM32MPUs.

You are free to update the C/C++ application or Python scripts for your own purposes, using your own NN models.

Source code locations are provided in application sample pages.

8. References[edit | edit source]