摘要
分析了嵌入式操作系统μC/OS-II产生的优先级反转问题及缺陷,提出了一种改进型优先级天花板协议,给出了协议的原理,该协议可以解决优先级反转问题,具有预防系统死锁等特点,并介绍了"修改μC/OS-II内核以实现改进型优先级天花板协议"的思想和方法。
This paper analyzes why priority-reversal problem occurs in μC/OS-Ⅱ, and the limitation of μC/OS-Ⅱ. An improved priority ceiling protocol（IPCP） is introduced, which including its principle, basic content. The protocol solves priority reversal problem, has other good characteristics, such as preventing system dead lock, etc. The approach of implementation of IPCP by modification of kernel of μC/OS-Ⅱ is proposed.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第1期66-68,共3页
Computer Engineering
基金
中国矿业大学青年科技基金资助项目(OD4545)
