基于ARM9芯片S3C2410异常中断程序设计  

Design of exceptional interruption Program Based on ARM9 Chip S3C2410

作　　者：范书瑞[1] 于明[1] 刘剑飞[1] 苏彦莽[1] 

机构地区：[1]河北工业大学信息工程学院,天津300130

出　　处：《微计算机信息》2007年第20期110-112,共3页Control & Automation

基　　金：河北省自然科学基金(F2004000072);河北省教育厅博士基金(B2003202)

摘　　要：实时操作系统要求处理器快速响应异常中断。以S3C2410为硬件平台,结合经过实际验证的代码详细分析了基于ARM嵌入式系统的异常处理流程。然后阐明关键字“-irq”的作用,设计出中断处理函数。最后,通过设置中断控制寄存器,设计外部中断EINT3的初始化程序,并给出主程序流程图。实践证明程序运行稳定可靠。By using the tested start up code of the S3C2410, the mechanism in which ARM processor responded to sorts of exceptional interruption was thoroughly explained. Then the function of ＂-irq ＂ was introduced, and the program of interruption was also designed. At last the initialize program of external interrupt was developed in C language by seting several important interrupt controller special registers, and the flowsheet of main program was given.

关 键 词：S3C2410 异常 IRQ 中断 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]