Embedded real-time operating system

Abstract

The invention discloses an embedded real-time operating system. The embedded real-time operating system comprises an application layer and a kernel; data interaction is carried out between the application layer and the kernel; the application layer comprises a storage system, a device driving unit, a virtual memory unit and a network protocol stack; and the kernel comprises a task management unit, a time management unit, a semaphore management unit, a memory management unit, a CPU unit and an ICP unit. The embedded real-time operating system disclosed by the invention has the effects that: the large memory segment of the system is divided into a certain number of small memory segments through the memory management unit; therefore, memory resources are sufficiently utilized; the use rate of a memory is optimized; the occupation space of the embedded real-time operating system disclosed by the invention is small; furthermore, in the task management unit, tasks are divided into different priorities; timely response can be realized; and thus, the real-time performance of the embedded real-time operating system disclosed by the invention is improved.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to an embedded real-time operating system. Background technique [0002] With the popularity of embedded technology, more and more electronic products are developed using embedded systems, and the embedded operating system is the core of the embedded system, so the performance of the embedded operating system directly affects the performance of the product. Compared with general-purpose operating systems, embedded operating systems are generally real-time. The popular embedded real-time operating systems in the market are: VxWorks, uCLinux and WinCE. [0003] VxWorks operating system is an embedded real-time operating system designed and developed by American WindRiver Company in 1983. It has a wide range of applications, strong applicability and high reliability, and can be used on all popular CPU platforms. The embedded real-time operating system used by the Americ...

AI Technical Summary

Problems solved by technology

It is characterized by powerful functions, strong image processing capabilities, easy-to-learn programming interface, and almost no difference from general-purpose programming, but it is still very troublesome to tailor the operating system, and it is also expensive

[0006] Therefore, the embedded real-time operating system in the prior art has the defects of being expensive, taking up a large space, and being unsuitable for application in the field of industrial control.

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