What are the main features of an embedded system?

1 The system kernel is small. 2. Strong specificity. 3 Streamlining the system.

4 High real-time system software (OS) is the basic requirement for embedded software. 5 For embedded software development to become standardized, it is necessary to use a multitasking operating system. 6 Embedded system development requires development tools and environments.

1 The system kernel is small.

2. Strong specificity.

3 Streamlining the system.

4) High real-time performance.

5) Multitasking operating system.

6) Specialized development tools and environment.

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The definition of an embedded system is:

It is a special computer system that is application-centric, based on computer technology, and can be tailored to adapt to the strict requirements of the application system for function, reliability, cost, volume and power consumption.

Personally, I think that its definition contains its characteristics, and it is not enough to do less.

1.Embedded systems are application-specific.

Embedded systems are user-oriented and application-oriented, and are generally combined with users and applications to appear as a dedicated system or module. The embedded system and the specific application are organically combined, and its upgrading is also carried out simultaneously with the specific product, so once the embedded system product enters the market, it has a long life cycle.

2.Embedded processors are constrained by application requirements.

Both the hardware and software of embedded systems must be designed efficiently, tailored to the needs of redundancies, and strive to achieve higher performance on the same silicon wafer area in order to be more competitive in specific applications.

Compared with general-purpose processors, the biggest difference between embedded processors is that most of the work is used in systems designed for specific user groups, which usually have the characteristics of low power consumption, small size, high integration, etc., and can integrate many tasks inside the chip, which is conducive to the miniaturization of embedded system design, greatly enhanced mobility, and increasingly close connection with the network.

The power consumption, size, cost, reliability, speed, processing power, electromagnetic compatibility, etc. of embedded processors are all constrained by application requirements. For example, for embedded microprocessors, they have the following four characteristics:

Strong support for real-time multitasking, multitasking and short interrupt response time, so that the execution time of the internal ** and real-time kernel is reduced to a minimum.

It has a strong storage area protection function. This is due to the modularization of the software structure of the embedded system, and in order to avoid the cross-play of errors between the software modules, it is necessary to design a robust memory protection function that also facilitates software diagnostics.

Scalable processor architecture enables the fastest development of the highest performance embedded microprocessors for applications.

Embedded microprocessors must consume very little power, especially in battery-powered embedded systems for portable wireless and mobile computing and communication devices, with power consumption in the MW or even W range.

3.Embedded software needs to be solid and reliable.

In order to improve the execution speed and system reliability, embedded software is generally solidified in the memory chip or microcontroller itself, rather than stored in a carrier such as disk. Software** requires high quality, high reliability, and high real-time.

Small system core: Since embedded systems are generally used in small electronic devices and have relatively limited system resources, the core is much smaller than that of traditional operating systems.

Strong specificity: embedded systems are usually task-oriented and highly personalized, in which the combination of software systems and hardware is very close, and software systems are generally ported to hardware.

Bright beam core operating environment is very different: embedded systems are used in a wide range of applications, and their operating environments vary greatly.

High reliability requirements: Embedded systems often have to be operated in an unattended environment for a long time, or even all year round, so the requirements for reliability are particularly high.

System Streamlining and High Real-Time Operating System:

Solidified in non-volatile memory: In order to initialize the system, almost all systems have to store a portion of the ** (startup**) in the non-volatile memory. In order to improve execution speed and system reliability, most embedded systems often solidify all of them (or their compression**) and store them in the internal memory of the memory chip or processor, rather than using an external memory medium.

Embedded system development jobs and environments: Embedded system development requires specialized development tools and environments.

Embedded systems are systems that control or monitor large-scale equipment such as machines, devices, and factories. The definition of embedded system generally recognized in China is: application-centered, based on computer technology, software and hardware can be tailored, and adapts to the application system's strict requirements for function, reliability, cost, volume, power consumption, etc.

Typically, an embedded system is an embedded processor control board where control programs are stored in a ROM. In fact, all devices with digital interfaces, such as watches, microwave ovens, video recorders, cars, etc., use embedded systems, some of which also contain operating systems, but most of them are controlled by a single program.

Features: Hail.

The system kernel is small; Strong specificity; streamlining of the system; High real-time system software is the basic requirement of embedded software; For embedded software development to become standardized, it is necessary to use a multitasking operating system; Embedded system development requires development tools and environments; The embedded system is organically combined with the specific application, and the upgrade is also carried out simultaneously; In order to improve the speed of operation and system reliability, the software in embedded systems is generally solidified in the memory chip.

An embedded system is a special type of computer system whose main characteristics are that it has strict functional limitations and resource constraints. The main features of the embedded system are as follows:

1.Miniaturization: Embedded systems often require hardware platforms that are small in size and consume low power. This makes them suitable for a wide range of applications, such as medical devices, transportation, smart homes, and more.

2.Real-time: Embedded systems must be able to complete their tasks within a defined timeframe. Some embedded systems require hard real-time operation, which means that events must be responded to within milliseconds or microseconds. Therefore, real-time performance is one of the important characteristics of embedded systems.

3.High reliability: Embedded systems often need to operate for long periods of time, so they must be highly reliable. This requires embedded systems to be rigorously handled in terms of hard-burning component design, software development, testing, and maintenance.

4.Real-time data acquisition and processing: Embedded systems need to collect and process environmental data in real time through devices such as sensors.