Downloading Yocto images for NXP based BSP

Getting started with AI on NXP i.MX8M Plus
Introduction
Overview i.MX8M Plus hardware specifications Development tools Development kit DART-MX8M-PLUS Development kit Quick getting started Yocto minimal image Flashing SD card First steps on the board
Development
Gatesgarth and Hardknott Yocto versions Downloading Yocto images for NXP based BSP Building an imx-core-image Flashing SD card Integrating multimedia software stack Installing GStreamer Installing OpenCV Integrating Artificial Intelligence software stack Installing TensorFlow Lite for NXP based images Installing R2Inference Installing GstInference Developing software for the board Building the SDK Crosscompiling apps for GStreamer, TensorFlow Lite, and OpenCV Exploring TensorFlow Lite delegates for prototyping
Neural Processing Unit
Introduction Profiling the NPU Installing gputop Setting the board on debug mode Use Case experiments: Smart Parking Introduction to the use case License Plate Detection TinyYOLO version 3 Training a model compatible with GstInference License Plate Recognition Rosetta Getting the model prototyping Bash scripts for CPU usage and time estimation Serial experiments Parallel Experiments Results
GStreamer
Exploring Rosetta element for character recognition Example pipelines Smart Parking Video inferences Image inferences Video streaming
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NXP Yocto Images

In order to have compatible libraries with the board and some optimized software modules, is better to use Gatesgarth or Hardknott as the main Yocto versions.

If you have built a core-image-minimal in the previous steps, then the steps are very similar.

Downloading the Gatesgarth or Hardknott Yocto Versions

By 2021 the most recent supported and recommended Yocto Versions are listed in this section.

Keeping the $HOME directory as our root directory, please go there and create the following build folder:

cd $HOME
mkdir imx8-yocto-variscite
cd imx8-yocto-variscite

For downloading either of these versions you can execute:

# For Gatesgarth:
repo init -u https://github.com/varigit/variscite-bsp-platform.git -b fsl-gatesgarth -m imx-5.10.9-1.0.0-var01.xml

# For Hardknott:
repo init -u https://github.com/varigit/variscite-bsp-platform.git -b fsl-hardknott -m imx-5.10.35-2.0.0-var01.xml

Finally you can synchronize your local repo with the remote one:

repo sync -j4

As we mentioned in previous sections, you need to specify a certain distribution and device:

DISTRO=fsl-imx-xwayland
MACHINE=imx8mp-var-dart

mkdir build_xwayland
source var-setup-release.sh -b build_xwayland

If you already had an environment, you just need to execute

source setup-environment build_xwayland

After having configured the environment you can build the minimal NXP image:

bitbake imx-image-core