• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊
论文

Extension and Application of the Operating System ealTimeness Based on μCLinux

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  • (School of Software,Huazhong University of Science and Technology,Wuhan 430074,China)

Received date: 2008-07-28

  Revised date: 2008-10-17

  Online published: 2010-03-28

Abstract

The paper proposes an implementation of the realtime μCLinux based on RTHAL(Real Time Hardware Abstract Layer). RTHAL with hard realtimeness runs between hardware and μCLinux,and only with a few modifications μCLinux can have harder realtimeness with a scheduling delay of about 3μs. The paper further proposes an effective method to calculate the size of the FIFO buffer for transferring realtime data stably between RTHAL and μCLinux. An example of realtime video coding proves the method can provide μCLinux with good realtimeness easily and effectively.

Cite this article

SU Shuguang,CAO Hua,LIU Yunsheng . Extension and Application of the Operating System ealTimeness Based on μCLinux[J]. Computer Engineering & Science, 2010 , 32(4) : 125 -127 . DOI: 10.3969/j.issn.1007130X.2010.

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