嵌入式软件异常处理机制的研究

Research on Technology for Exception Processing in Embedded Software

异常处理作为实现嵌入式软件容错的一种机制,对嵌入式系统的可靠性具有十分重要的作用。文中主要分析了嵌入式系统原有的异常处理机制的不足,并依据实际工作中的发现,加入了新的异常处理机制,作为对原有异常处理机制的补充。并且以uC/OS_II为例,叙述了这种新的异常处理机制的设计和应用。最后说明了在实际工作中应用这种新的异常处理机制应该注意的问题。

Exception processing technique, which is used to deal with errors, is very important in embedded software＇ s reliability, In this paper, firstly analyze the limitation of the intrinsic exception processing technique of embedded software, and the new exception processing technique of embedded software,which are used to reinforce the intrinsic one. Then narrate the designing and applying of new exception processing technique of embedded software with the example of resource exception in uC/OS-Ⅱ, At last illuminate the notices in using this new one,