By Ivan Cibrario Bertolotti, Tingting Hu
Embedded software program improvement: The Open-Source Approach can provide a pragmatic creation to embedded software program improvement, with a spotlight on open-source elements. This programmer-centric booklet is written in a manner that permits even amateur practitioners to understand the improvement strategy as a whole.
Incorporating actual code fragments and particular, real-world open-source working procedure references (in specific, FreeRTOS) all through, the text:
- Defines the position and goal of embedded platforms, describing their inner constitution and interfacing with software program improvement tools
- Examines the internal workings of the GNU compiler assortment (GCC)-based software program improvement approach or, in different phrases, toolchain
- Presents software program execution types that may be followed profitably to version and show concurrency
- Addresses the elemental nomenclature, types, and ideas relating to task-based scheduling algorithms
- Shows how an open-source protocol stack could be built-in in an embedded method and interfaced with different software program components
- Analyzes the most elements of the FreeRTOS program Programming Interface (API), detailing the implementation of key working procedure concepts
- Discusses complex issues reminiscent of formal verification, version checking, runtime assessments, reminiscence corruption, safety, and dependability
Embedded software program improvement: The Open-Source Approach capitalizes at the authors’ huge learn on real-time working platforms and communications utilized in embedded purposes, frequently conducted in strict cooperation with undefined. therefore, the ebook serves as a springboard for additional research.
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Extra resources for Embedded software development : the open-source approach
The external bus is managed by means of one or more dedicated memory controllers resident on the microcontroller itself. The same technique can also be used to connect high-speed external peripherals. For what concerns memory, three main kinds of memory can be incorporated in a system in this way: • • • Flash memory SRAM Dynamic Random Access Memory (DRAM) On them, external flash memory and SRAM share the same general characteristics as their on-chip counterparts. Instead, DRAM is rarely found in commerce as a kind of on-chip microcontroller memory, due to difficulties to make the two chip production processes coexist.
This is because most programming languages (including the C language this book focuses on) do allow the programmer to specify the abstract storage class of a variable (for instance, whether a variable is local or global, read-only or read-write, and so on) but they do not support any standard mechanisms that allow programmers to indicate more precisely where (in which memory bank) that variable will be allocated. As will be better described in Chapters 3 and 9, this important goal must therefore be pursued in a different way, by means of other components of the software development toolchain.
For this reason, this chapter contains a brief overview of the major components outlined above, with special emphasis on the role they play from the programmer’s perspective. Interested readers are referred to more specific literature [50, 154] for detailed information. After a specific microcontroller has been selected for use, its hardware data sheet of course becomes the most authoritative reference on this topic. Embedded Applications and Their Requirements 15 Arguably the most important component to be understood and taken into account when designing and implementing embedded software is memory.
Embedded software development : the open-source approach by Ivan Cibrario Bertolotti, Tingting Hu