Introduction to Seven Embedded Linux Operating System
2005-01-13 10:44:56 From: Mr. Linux
In addition to the intelligent digital terminal, Linux has extensive application prospects in mobile computing platforms, intelligent industrial control, financial industry terminal system, and even military fields. These Linux are collectively referred to as "embedded linux". Let's take a look at which embedded Linux is in the above field! RT-Linux This is an embedded Linux operating system developed by the US Mexican Institute of Technology. So far, RT-Linux has been successfully applied to space data acquisition, scientific instrument and control and film stunt image processing. RT-Linux developers do not rewrite the characteristics of the real-time operating system, because this workload is very large, and it is also very difficult to ensure compatibility. To this end, RT-Linux proposed a delicate kernel and a standard Linux core as a process of real-time core, and dispatched with the real-time process of the user. This is very small for the Linux kernel and makes full use of existing rich software resources under Linux. Uclinuxuclinux is the main product of Lineo, and is also an example of an open source embedded Linux. Uclinux is mainly designed for an embedded system for the target processor without the storage management unit MMU (Memory Management Unit). It has been successfully ported to many platforms. Since there is no MMU, the implementation of its multitasking requires certain techniques. Uclinux is an excellent embedded Linux version, which is an abbreviation for Micro-ConroL-Linux. It adheres to the excellent characteristics of standard Linux, and has formed a highly optimized, code-compact embedded Linux. Although it is small, it still retains most of Linux's advantages: stable, good portability, excellent network function, full support and standard affordable API for various document systems. It has made many miniaturized work designed for embedded systems, and there is currently a variety of CPUs. The target files after compilation can be controlled at a few hundred kb orders and have been successfully ported to many platforms. Embedixembedix is launched by one of the main vendors of the embedded Linux industry, which is a Linux release version that is redesigned according to the characteristics of the embedded application system. Embedix provides more than 25 Linux system services, including web servers, and more. The system requires minimum 8MB memory, 3MB ROM or fast flash. Embedix is based on the Linux 2.2 kernel and has been successfully ported to the Intel X86 and PowerPC processor series. Like other Linux versions, Embedix can be available for free. Luneo also released another important software product that allows programs running on Windows CE to run on Embedix. Luneo will also plan to introduce the Embedix's development debug kit, a browser based on a graphical interface. It can be said that Embedix is a complete embedded Linux solution. XlinuxxLinux is launched by the US Tiger Company. The main developers are Chen Yinghao. He has developed XLinux after a few months of joining Tiger, known as the smallest embedded Linux system in the world, with only 143KB, and is still reduced. The XLinux core adopts the "super-element set" patented technology, so that Linux core is not only compatible with standard character sets, but also a character set covering 12 countries and regions. Therefore, XLinux has a unique advantage in promoting Linux international applications. PoketlinuxPokeTlinux is adopted by Agenda, as an embedded Linux operating system for its new product "VR3 PDA". It provides a unified, standardized and open information communication infrastructure, which is constructed across operation system, which implements a complete platform for end-to-end schemes on this structure. The PoketLinux resource framework is open, allowing the normal software structure to provide consistent services for all users. The PoketLinux platform removes the user's sight from the device, platform, and the network, which leads to the generation of new era of information technology.
