This paper aims at the characteristic that the IRQ interrupt vector addresses of ARM7 microcontroller are assigned on the interrupt vector registers dynamic,introduces the idea that roots the interrupt vectors into ROM,establishes the IRQ interrupt recovery system.
针对ARM7微控制器的IRQ中断向量地址动态分配在中断向量寄存器中的特点,提出将中断向量固化到ROM中的思路,构建IRQ中断防御体系,从而增强了系统的可靠性和安全性。
In this article,the hardware cascade structrue,port address,the system defination of interrupt vector and the system initiation of middle,and supper microcomputer s maskable interrupt system are analyzed,and it gives out the points for attention in application and takes Fangzheng MMX 166 to a concrete example.
分析了与中、高档微型机可屏蔽中断系统有关的硬件级联结构、中断系统的端口地址、中断向量的定义、中断系统初始化，并以方正ＭＭＸ１６６为例，给出了应用中应注意的问题及具体例子。
Based on tracking and debugging the process of the interrupt in VxWorks operation system,the establishment and structure of the exception and interrupt table as well as the driver of the VxWorks interrupt based on AT91RM9200 Processor are obtained by the experiment.
通过对VxWorks操作系统中断处理过程的跟踪调试,实验得出了VxWorks操作系统中断的处理过程,以及VxWorks的异常中断向量表和中断向量表的创建,并列出其结构。