This article follows two earlier blog posts about Device Tree overlays: Using Device Tree Overlays, example on BeagleBone boards Device Tree: Supporting Similar Boards – The BeagleBone Example Introduction As explained in the first two blog posts, the BeagleBone boards are supported by a wide number of extension boards, called capes. When such a cape […]
Most of the BeagleBone boards from BeagleBoard.org share the same form factor, have the same headers and therefore can accept the same extension boards, also known as capes in the BeagleBoard world. Of course, a careful PCB design was necessary to make this possible. This must have been relatively easy with the early models (BeagleBone […]
The concept of Device Tree overlays The Device Tree language is a way to describe hardware that is present in a system and cannot be automatically detected. That’s the case of devices directly implemented on a System on a Chip, such as serial ports, Ethernet or Nand flash controllers. That’s also the case of devices […]