Raspberry Pi: Write Your Own Operating System Step by Step

Learn how to write a 64-bit operating system from scratch for raspberry pi 3 and 4
What you'll learn:
Be able to build a simple operating system for the ARM64 architecture.
Understand the fundamentals of ARM64
How to handle interrupts and exceptions in ARM64 mode
How to write OS kernel with the assembly code and C code
Be able to build a memory manager using ARM paging mechanism
How to write timer handler for the process manager
How to build a process manager to schedule processes and change them among different states (sleep, ready, killed)
How to implement system call module to make user programs running in the system
Write a simple console and interact with OS kernel using commands
Be able to write a simple file system module which supports reading fat16 system.

Requirements
Raspberry Pi 3B or 4 (not required)
USB to TTL Serial Cable (not required)
Basic Knowledge of ARM 64-bit Assembly Language and C Language

Description
Welcome to Raspberry Pi: Write Your Own Operating System course.

This course teaches you how to build a simple operating system from scratch. It covers basics about the AArch64 architecture and low-level programming. In this course, we will take you through the process of building a small working system step by step.

The first part of the course teaches all you need to know (processor modes, paging, exceptions and interrupts handling, etc.) before you can build the kernel on the AArch64 architecture. In this part, we will see how to prepare for mode switching. We switch from EL2 to EL1 and then jump to EL0. Our kernel is running in 64-bit mode. We will see how to handle exceptions and interrupts, how to switch between kernel mode and user mode.

The second part of the course teaches you how to build kernel modules such as processes, memory management, interrupt handling, etc. In this part, we will see how to interact with the OS kernel using the console. After finishing this part, you should know how to write user programs and make them running in your own operating system.

In this course you will learn:

How to build a simple operating system for the AArch64 architecture.

How to handle interrupts and exceptions

How to write OS kernel with the assembly code and C code

Be able to write print function to print characters on the screen

Be able to build a memory manager using paging mechanism

How to write timer handler for the process manager

How to build a process manager to schedule processes and change them among different states (sleep, ready, killed)

How to implement system call module to make user programs running in the system

Write a UART driver

Write a simple console and interact with OS kernel using commands

Be able to write a simple file system module which supports reading fat16 system.

At the end of the course, you should be able to develop your own 64-bit operating system.

Who this course is for
Students who learned the operating system concepts and want to put them into practice
Students curious about the fundamental mechanisms used in the OS
People who want to build a hobby OS but don't know how and where to start


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