2. Linux-based Embedded System Component Stack
The chapter covers the essential components of Linux-based embedded systems, detailing the layered architecture that includes the hardware layer, bootloader layer, kernel layer, middleware layer, and application layer. Each layer has distinct responsibilities that facilitate the overall functionality and communication within the embedded system stack, enabling efficient and real-time operations.
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What we have learnt
- The embedded system stack consists of multiple layers, each serving different roles.
- Linux-based embedded systems utilize a layered architecture for better optimization and functionality.
- Communication between layers is vital for the smooth operation of embedded systems.
Key Concepts
- -- Hardware Layer
- Physical components like processors, memory, and input/output devices necessary for the operation of embedded systems.
- -- Bootloader
- A small program that initializes hardware and loads the operating system when the embedded system starts.
- -- Kernel
- The core component of the operating system managing hardware resources and providing fundamental system services.
- -- Middleware
- Software that provides additional services and functionality, acting as a bridge between the kernel and application layer.
- -- Application Layer
- The top layer where user-specific applications run, interacting with the middleware and kernel.
- -- InterProcess Communication (IPC)
- Mechanisms allowing processes to communicate and share data within the embedded system.
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