What is an embedded linux system

The embedded linux system refers to an operating system that can run on an embedded computer system after miniaturizing standard linux. Embedded linux can be solidified in a capacity of only a few K or a few M words. A dedicated Linux operating system suitable for specific embedded applications in a memory chip or microcontroller.

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

Embedded linux system

Embedded Linux (Embedded Linux) refers to the miniaturization and tailoring of standard Linux, which can be solidified into a memory chip with a capacity of only a few K or M bytes. Or a dedicated Linux operating system suitable for specific embedded applications in a microcontroller.

It can be simply understood as: embedded linux is an operating system that tailors and modifies the increasingly popular Linux operating system so that it can run on embedded computer systems.

Embedded Linux not only inherits the unlimited open source code resources on Intelnet, but also has the characteristics of an embedded operating system.

Features of Embedded Linux

Technical support: Free software developers around the world provide support;

Network features: Free and excellent performance;

Software transplantation: easy, open code, supported by many application software;

Application product development cycle: short, new products can be launched quickly because there are many public codes that can be referenced and transplanted;

Real-time performance: RT_Linux, hardhat Linux and other embedded Linux support real-time performance;

Market prospects and business opportunities of embedded Linux

Embedded Linux There are huge market prospects and business opportunities, and a large number of professional companies and products have emerged, such as Montavista, Lineo, Emi, etc. There are industry associations, such as Embedded Linux Consortum, etc. It is supported by world-renowned computer companies and OEM board-level manufacturers, such as IBM, Motorola, Intel, etc. Traditional embedded system manufacturers have also adopted Linux strategies, such as Lynxworks, Windriver, QNX, etc. There is also support from a large number of embedded Linux enthusiasts on intelnet. Embedded Linux supports almost all embedded CPUs and is ported to almost all embedded OEM boards.

Application fields of embedded Linux

The application fields of embedded Linux are very wide. The main application fields are, information appliances: PDA, STB-Set-stopbox, Digital Telephone, Answering Machine, Screen Phone, data network: Ethernet switches, Router, Bridge, Hub, Remote access servers, ATM, Frame relay, remote communications, medical electronics, transportation, computer peripherals, industrial control, aviation fields, etc.

Advantages of Embedded Linux

The development and research of embedded Linux is a hot spot in the field of operating systems. Among the embedded systems that have been successfully developed, about Half use Linux. The reason why Linux can achieve such brilliant results in the embedded system market is inseparable from its own excellent characteristics.

The main difference between embedded linux and linux

1. Hardware platform:

Embedded Linux is generally Mips, ARM platform,

Desktop Linux is generally an x86 platform.

2. Root file system

Embedded Linux generally uses UBIFS, yaffs2, jffs2.

Desktop Linux generally uses ext3.

3. The shell is different

Busybox is generally used for embedded Linux.

Bash is generally used for desktop Linux.

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