This the repository for my corresponding blog over at adamransom.github.io. It will contain examples of things I learn whilst attempting to build an extremely bare-bones kernel for the Raspberry Pi 3.
In order to run these examples, you will most notably need a Raspberry Pi 3 Model B. Whilst a lot of the same code can be used on a Raspberry Pi 2, there are some big differences early on (for example when trying to turn on the ACT LED).
Secondly you will need the arm-none-eabi toolchain to assemble, link and generate a binary image to put on your SD card.
Finally you will need make if you want to make building the examples easier.
If you have make installed, all you need to do is cd into an example directory and run:
makeThen you will need to copy the generated kernel.img to your SD card, along with the Raspberry Pi boot files (bootcode.bin and start.elf), put the card carefully in your Pi and you are good to go!