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计算机工程 ›› 2007, Vol. 33 ›› Issue (08): 94-96. doi: 10.3969/j.issn.1000-3428.2007.08.032

• 软件技术与数据库 • 上一篇    下一篇

VxWorks下的内存管理

陈 洋,胡向宇,杨坚华   

  1. (兰州物理研究所,兰州 730000)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-04-20 发布日期:2007-04-20

Memory Management on VxWorks

CHEN Yang, HU Xiangyu, YANG Jianhua   

  1. (Lanzhou Institute of Physics, Lanzhou 730000)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-04-20 Published:2007-04-20

摘要: 探讨了VxWorks 中内存分配策略的实现。对80386/80486的段页式管理机制进行了介绍,对VxWorks下的内存管理机制进行了阐述,并以VxWorks下通过DMA方式传输语音数据为例进一步剖析VxWorks的内存分配策略。对于嵌入式系统和应用的开发具有一定的参考价值。

关键词: 内存管理, 直接存储器存储, 语音传输, VxWorks

Abstract: With the embedded system developing rapidly, the real-time operating system VxWorks has been widely used in embedded application. The implementation method of memory allocation is analyzed. This paper introduces segment and page memory management on 80386/80486, anatomizes the memory management mechanism on VxWorks. The DMA memory management on VxWorks is explained as an example, which is used in the transmission of the sound data.

Key words: Memory management, DMA, Sound transmission, VxWorks