Raspberry Pi: Write Your Own Operating System Step by Step

🚀 [Course Headline] Raspberry Pi: Write Your Own Operating System Step by Step 🛠️

🎓 [Course Description]

Welcome to the "Raspberry Pi: Write Your Own Operating System" course! If you've ever wanted to understand the gears that drive the world of computer operating systems, this is your chance to dive into the intricacies and build one from scratch. 👨‍💻💫

In this comprehensive course, we embark on a journey through the AArch64 architecture, delving into low-level programming, processor modes, paging, exceptions, and interrupts handling—all essential components for crafting an operating system tailored for Raspberry Pi 3 and 4.

[Part 1: Laying the Groundwork]

We kick off by equipping you with all the necessary knowledge to start building the kernel on AArch64. You'll learn about preparing for mode switching, transitioning from EL2 to EL1 and then booting into EL0 where your kernel runs in full 64-bit glory. We'll guide you through handling exceptions and interrupts with finesse and understanding how to switch between kernel and user modes seamlessly.

[Part 2: Building the Kernel and Beyond]

Next, we focus on developing kernel modules that are the heart of your operating system—processing, memory management, interrupt handling, and more. By the end of this part, you'll be able to create user programs that interact with your OS using the console. You'll gain hands-on experience in:

• 🏗️ Building a simple operating system for AArch64 architecture.
• ⚙️ Handling interrupts and exceptions efficiently.
• Writing OS kernel components using both assembly code and C code.
• Developing a print function to display characters on the screen.
• Constructing a memory manager with paging for effective memory handling.
• Coding a timer handler to manage processes.
• Designing a process manager that schedules and manages processes in various states: sleep, ready, terminated, etc.
• Implementing a system call module to enable user programs to run within your system.
• Writing a UART driver for I/O operations.
• Creating a simple console to interact with the OS kernel using commands.
• Developing a file system module that can read from FAT16 systems.

By the end of this course, you'll have a solid foundation and the practical skills needed to develop your very own 64-bit operating system for Raspberry Pi 3 and 4. 🎢

Embark on this adventure into the world of low-level OS development today! 🌟