Introduction

This is toy/hobby operating system for arm32 target. Mostly it will be tested on raspberry pi 3b+. In future I can try support for arm64 and other recent RPIs like RPI 4

I will be using my code and expericence from following my repositories

• Bare Metal Code https://github.com/zeoneo/rpi3b-bare-metal
  • Contains most of the init code like interrupts, paging, uart devices etc
• https://github.com/zeoneo/rpi-3b-wifi
  • More related to wifi connection using wpa_supplicant

Raspi2b -> bcm2836 has cortexA7 cores Raspi3b -> bcm2837 has cortexA53 cores -> in 32bit mode cortexa-53 (armv8-a arch) is same as cortex-a7 (armv7 arch). Hence while emulating on qemu we will use Machine = raspbi2b and cpu = cortex-a7

Build and Run

./qemu.sh

TODO List

[] - Create project structure and build scripts [] -