摘要： 单粒子翻转可能发生在内核堆栈时，破坏任务的上下文环境，从而导致星载软件运行结果出错、跑飞甚至崩溃。针对该情况，对嵌入式µC/OS-II内核进行改进，实现任务上下文保护机制。经实验验证，改进的内核能有效地克服单粒子翻转对内核堆栈造成的影响。
关键词:
µ,
C/OS-II内核,
任务上下文,
单粒子翻转
Abstract: A single event upset may happen in the task stack and spoile the task context, so the on-board software may be affected in the way of getting wrong results, running to undefined point or becoming collapsed. Aiming at this problem, this paper improves the embedded kernel µC/OS-II and implements protection mechanism for task context. A test is given, which proves the protection mechanism for task context can effectively get rid of the effect on task stack caused by a single event.
Key words:
µ,
C/OS-II kernel,
task context,
single event upset
中图分类号:
段星辉;代作晓. 嵌入式内核的任务上下文保护机制[J]. 计算机工程, 2009, 35(14): 20-21.
DUAN Xing-hui; DAI Zuo-xiao. Protection Mechanism for Task Context of Embedded Kernel[J]. Computer Engineering, 2009, 35(14): 20-21.