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lacamera d embedded systems architecture design systems 2ed 2023

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Textbook in PDF format Design safe and reliable software for embedded systems and explore the internals of device drivers, RTOS, and TEE Key FeaturesIdentify and overcome challenges in embedded environmentsUnderstand and implement the steps required to increase the security of IoT solutionsBuild safety-critical and memory-safe parallel and distributed embedded systemsBook Description Embedded Systems Architecture begins with a bird's-eye view of embedded development and how it differs from the other systems that you may be familiar with. This book will help you get the hang of the internal working of various components in real-world systems. You'll start by setting up a development environment and then move on to the core system architectural concepts, exploring system designs, boot-up mechanisms, and memory management. As you progress through the topics, you'll explore the programming interface and device drivers to establish communication via TCP/IP and take measures to increase the security of IoT solutions. Finally, you'll be introduced to multithreaded operating systems through the development of a scheduler and the use of hardware-assisted trusted execution mechanisms. With the help of this book, you will gain the confidence to work with embedded systems at an architectural level and become familiar with various aspects of embedded software development on microcontrollers—such as memory management, multithreading, and RTOS—an approach oriented to memory isolation. What you will learnParticipate in the design and definition phase of an embedded productGet to grips with writing code for ARM Cortex-M microcontrollersBuild an embedded development lab and optimize the workflowSecure embedded systems with TLSDemystify the architecture behind the communication interfacesUnderstand the design and development patterns for connected and distributed devices in the IoTMaster multitasking parallel execution patterns and real-time operating systemsBecome familiar with Trusted Execution Environment (TEE)Who this book is for If you're a software developer or designer looking to learn about embedded programming, this is the book for you. You'll also find this book useful if you're a beginner or a less experienced embedded programmer on a quest to expand your knowledge on embedded systems. Preface Introduction to Embedded Systems Development Embedded Systems – A Pragmatic Approach Domain definition Embedded Linux systems Low-end 8-bit microcontrollers Hardware architecture Understanding the challenges Multithreading RAM Flash memory General-purpose input/output (GPIO) ADC and DAC Timers and PWM Interfaces and peripherals Asynchronous UART-based serial communication SPI I2C USB Connected systems Challenges of distributed systems Introduction to isolation mechanisms The reference platform ARM reference design The Cortex-M microprocessor Summary Work Environment and Workflow Optimization Workflow overview The C compiler Linker Make: a build automation tool Debugger Embedded workflow Text editors versus integrated environments The GCC toolchain The cross compiler Compiling the compiler Linking the executable Binary format conversion Interacting with the target The GDB session Validation Functional tests Hardware tools Testing off-target Emulators Summary Core System Architecture Architectural Patterns Configuration management Revision control Tracking activities Code reviews Continuous integration Source code organization Hardware abstraction Middleware Application code Security considerations Vulnerability management Software cryptography Hardware cryptography Running untrusted code The life cycle of an embedded project Defining project steps Prototyping Refactoring API and documentation Summary The Boot-Up Procedure Technical requirements The interrupt vector table Startup code Reset handler Allocating the stack Fault handlers Memory layout Building and running the boot code The makefile Running the application Multiple boot stages Bootloader Building the image Debugging a multi-stage system Shared libraries Remote firmware updates Secure boot Summary Memory Management Technical requirements Memory mapping Memory model and address space The code region The RAM regions Peripheral-access regions The system region Order of memory transactions The execution stack Stack placement Stack overflows Stack painting Heap management Custom implementation Using newlib Limiting the heap Multiple memory pools Common heap usage errors The memory protection unit MPU configuration registers Programming the MPU Summary Device Drivers and Communication Interfaces General-Purpose Peripherals Technical requirements Bitwise operations The interrupt controller Peripherals’ interrupt configuration System time Adjusting the flash wait states Clock configuration Clock distribution Enabling the SysTick Generic timers GPIO Pin configuration Digital output PWM Digital input Interrupt-based input Analog input The watchdog Summary Local Bus Interfaces Technical requirements Introducing serial communication Clock and symbol synchronization Bus wiring Programming the peripherals UART-based asynchronous serial bus Protocol description Programming the controller Hello world! newlib printf Receiving data Interrupt-based input/output SPI bus Protocol description Programming the transceiver SPI transactions Interrupt-based SPI transfers I2C bus Protocol description Clock stretching Multiple masters Programming the controller Interrupt handling Summary Chapter 8: Power Management and Energy Saving Technical requirements System configuration Hardware design Clock management Voltage control Low-power operating modes Deep-sleep configuration Stop mode Standby mode Wake-up intervals Measuring power Development boards Designing low-power embedded applications Replacing busy loops with sleep mode Deep sleep during longer inactivity periods Choosing the clock speed Power state transitions Summary Distributed Systems and IoT Architecture Technical requirements Network interfaces MAC Selecting the appropriate network interfaces The IPs Standard protocols, custom implementations The TCP/IP stack Network device drivers Running the TCP/IP stack Socket communication Connectionless protocols Mesh networks and dynamic routing TLS Securing socket communication Application protocols Message protocols The REST architectural pattern Distributed systems – single points of failure Summary Multithreading Parallel Tasks and Scheduling Technical requirements Task management The task block Context switch Creating tasks Scheduler implementation Supervisor calls Cooperative scheduler Concurrency and timeslices Blocking tasks Waiting for resources Real-time scheduling Synchronization Semaphores Mutexes Priority inversion System resource separation Privilege levels Memory segmentation System calls Embedded operating systems OS selection FreeRTOS RIOT OS Summary Trusted Execution Environment Technical requirements Sandboxing TrustZone-M Reference platform Secure and non-secure execution domains System resources separation Security attributes and memory regions Flash memory and secure watermarks GTZC configuration and block-based SRAM protection Configuring secure access to peripherals Building and running the example Enabling TrustZone-M Secure application entry point Compiling and linking secure-world applications Compiling and linking non-secure applications Inter-domain transitions Summary Index About Packt Other Books You May Enjoy

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lacamera d embedded systems architecture design systems 2ed 2023