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This article mainly explains "what are the common embedded systems". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "what are the common embedded systems?"

Common embedded systems are: embedded Linux, uClinux, Windows CE, PalmOS, Symbian, eCos, uCOS-II, VxWorks, pSOS, Nucleus, ThreadX, Rtems, QNX, INTEGRITY, OSE and so on.

The operating environment of this tutorial: windows10 system, Dell G3 computer.

The embedded system is composed of hardware and software. is a device that can operate independently. Its software content only includes the software running environment and its operating system. The hardware includes signal processor, memory, communication module and so on. Compared with the general computer processing system, the embedded system is quite different, it can not achieve large-capacity storage function, because there is no matching large-capacity media, most of the storage media are E-PROM, EEPROM DENG and so on, and the software part takes API programming interface as the core of the development platform.

Common embedded systems in daily life

Embedded Linux

Embedded Linux (Embedded Linux) is a special Linux operating system of standard Linux after miniaturization and tailoring, which can be solidified in memory chips or single-chip microprocessors with a capacity of only a few KB or MB, so it is suitable for specific embedded applications. At present, in many developed embedded systems, about half of the systems use embedded linux. Embedded linux has a distinct hierarchical structure, powerful network support functions, complete tool chain, easy to build development environment, etc., and it can also realize the obstacles of simulation tools in cross-domain embedded system development. Linux has a wide range of hardware support features. Commonly used embedded operating systems.

UClinux

Windows CE

Windows CE is an electronic device operating system based on handheld computers. The graphical user interface of Windows CE is excellent, and Windows CE is modular, structured, Win32-based and processor-independent. However, the Windows CE development platform is expensive, which limits its development to some extent. Commonly used embedded operating systems

PalmOS

Palm OS has a large user base in the field of PDA, and once occupied more than 90% of the market share of PDA operating system. The most obvious feature of Plam OS is simplicity, its kernel is only a few thousand bytes, and users can easily develop and customize it, so it has strong maneuverability.

Symbian

ECos

UCOS-II

Its main features are as follows:

Open source code, it is easy to port the operating system to different hardware platforms

Portability, most of the source code is written in C language, which is easy to transplant to other microprocessors.

Curable, cuttable, and selectively use the required system services to reduce the storage space required for the bucket

A preemptive, completely preemptive real-time kernel, that is, the task with the highest priority when it is always ready to run

Multi-tasking, can manage 64 tasks, the priority of the task must be different, does not support time slice rotation scheduling method

Deterministic, the execution time of function calls and services is deterministic and does not depend on the number of tasks.

Practicability and reliability, and the successful application of the real-time kernel is the best evidence of its practicability and reliability.

VxWorks

Real-time is better, do some programs and other functions will be refined and effective. High reliability, thus ensuring the stability of the user's working environment.

PSOS

Nucleus

ThreadX

Rtems

QNX

INTEGRITY

OSE

C Executive

At this point, I believe you have a deeper understanding of the "common embedded systems", might as well come to the actual operation of it! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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