Device tree compiler
How to use the device tree compiler to extract the device tree source from the device tree blog
Device tree compiler installation
It is possible to install the device tree compiler on your Linux PC or you Acme Systems board by typing:
sudo apt-get update
sudo apt-get install device-tree-compiler
Extract the device tree sources from a dtb file
Usually the dtb file used during the boot is saved on the microSD inside the directory /boot. In this example we will extract a dts file starting from the dtb file available on a RoadRunner board.
sudo dtc -I dtb -O dts -o acme-roadrunner.dts /boot/acme-roadrunner.dtb
Make your changes on the acme-roadrunner.dts file using an ASCII editor, copy your old copy of dtb file and generate the new dtb file by typing
cp /boot/acme-roadrunner.dtb /boot/acme-roadrunner-old.dtb
sudo dtc -I dts -O dtb -o /boot/acme-roadrunner.dtb acme-roadrunner.dts
Then reboot to test yor new device tree
Sergio Tanzilli
System designer, webmaster and Acme Systems co-founder
Personal email: tanzilli@acmesystems.it
Webpages: https://www.acmesystems.it - https://www.tanzolab.it
Github repositories: https://github.com/tanzilli and https://github.com/acmesystems
Telegram group dedicated to the Acme Systems boards: https://t.me/acmesystemssrl
System designer, webmaster and Acme Systems co-founder
Personal email: tanzilli@acmesystems.it
Webpages: https://www.acmesystems.it - https://www.tanzolab.it
Github repositories: https://github.com/tanzilli and https://github.com/acmesystems
Telegram group dedicated to the Acme Systems boards: https://t.me/acmesystemssrl
