2x4-Lane MIPI Settings for AC-AR0820

Background Information

By default, NRU-51V+ are shipped with 4x 2-lane MIPI settings.

This technical note is specifically for our alpha site customers testing with 2x 4-lane settings for 8MP camera, AC-AR0820, development.

Hardware Setting

While using the NRU-51V+ with 2x 4-lane MIPI settings, the FAKRA connection should be connected as the picture below.

The differences between the 2-Lane and 4-Lane daughter boards are as shown below.

Device Tree

• Please download the special 2x 4-lane MIPI camera settings from the NRU NAS.

• Overwrite the existing device tree on NRU-51V+ using the following commands for 2x 4-lane MIPI settings.

tar xvf nru50+_2023-09-21_1626.tar.gz
md5sum nru50+_ONX_8gb.dtb #check sum as 4deb364b0085a2f73657436d7e01b9dd
sudo cp -f nru50+_ONX_8gb.dtb /boot/dtb/kernel_nru50+_ONX_8gb.dtb #change dtb file

Camera Sample Code

• Please download 10-release.tar.gz from the NRU NAS and then decompress the tarball

tar xvf 10-release.tar.gz -C ~/Desktop --strip-components=1 #decompress file at ~/Desktop

• After decompressing, right-click on AC-8MPCam.desktop and select Allow Launching.

Allow Launching AC-8MPCam.desktop

• After allowing launching of AC-8MPCam.desktop, you will see it as the shortcut icon.

AC-8MPCam-Demo

• Double-click on AC-8MPCam-Demo, and you will see the AC-AR0820 camera streaming at 20 FPS

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