Device-Tree

Feb 122 min read

I2S audio output with a Raspberry Pi Zero W and AD SSM2518 DAC (PMOD AMP3)

Demonstrates configuring Linux & ALSA on a Raspberry Pi Zero W to output audio via I2S to a Digilent PMOD AMP3

Oct 22, 20214 min read

Using device tree overlays with Linux/Petalinux

This post will show you how to use device tree overlays in Linux, and discusses Petalinux-specific configuration requirements and bugs....

Oct 22, 20215 min read

Creating device tree overlays

This post provides an example of how you can create a device tree overlay .dtbo file. Once you've created the dtbo file, read "Using...

Oct 10, 20217 min read

Quickly Try devicetree and Root Filesystem Changes from a Xilinx PetaLinux Built image.ub

This post shows how to get the Linux kernel, Flattened Device Tree blob, petalinux-user-image from an image.ub built by PetaLinux. Then...

Dec 3, 20203 min read

Set bootargs in a PetaLinux 2019.1 Build

This post shows how PetaLinux Tools 2019.1 lays out device tree files and how to edit bootargs. Assumptions You've installed PetaLinux...

Aug 10, 20201 min read

Build an Environment to Debug Device Tree Generation

This is a quick post that lists all of the commands to set up an environment to debug device tree generation. Versions Used Vivado...