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Embedded Systems Architecture

You're reading from   Embedded Systems Architecture Design and write software for embedded devices to build safe and connected systems

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Product type Paperback
Published in Jan 2023
Publisher Packt
ISBN-13 9781803239545
Length 342 pages
Edition 2nd Edition
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Author (1):
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Daniele Lacamera Daniele Lacamera
Author Profile Icon Daniele Lacamera
Daniele Lacamera
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Table of Contents (18) Chapters Close

Preface 1. Part 1 – Introduction to Embedded Systems Development
2. Chapter 1: Embedded Systems – A Pragmatic Approach FREE CHAPTER 3. Chapter 2: Work Environment and Workflow Optimization 4. Part 2 – Core System Architecture
5. Chapter 3: Architectural Patterns 6. Chapter 4: The Boot-Up Procedure 7. Chapter 5: Memory Management 8. Part 3 – Device Drivers and Communication Interfaces
9. Chapter 6: General-Purpose Peripherals 10. Chapter 7: Local Bus Interfaces 11. Chapter 8: Power Management and Energy Saving 12. Chapter 9: Distributed Systems and IoT Architecture 13. Part 4 – Multithreading
14. Chapter 10: Parallel Tasks and Scheduling 15. Chapter 11: Trusted Execution Environment 16. Index 17. Other Books You May Enjoy

UART-based asynchronous serial bus

Historically used for many different purposes, thanks to the simplicity of its asynchronous nature, UART dates back to the origins of computing, and it is still a very popular circuit used in many contexts. Personal computers up to the early 2000s included at least one RS-232 serial port, realized with a UART controller and the transceivers allowing to operate at higher voltages. Nowadays, the USB has replaced serial communication on personal computers, but host computers can still access TTL serial buses using USB-UART peripherals. Microcontrollers have one or more pairs of pins that can be associated with an internal UART controller and connected to a serial bus to configure a bidirectional, asynchronous, full-duplex communication channel toward a device connected to the same bus.

Protocol description

As previously mentioned, asynchronous serial communications rely on implicit synchronization of the bit rate between the transmitter and the...

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