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Erschienen in:
2011 | OriginalPaper | Buchkapitel
An Experimental Design for Interrupt Controller of Embedded System
verfasst von : Zhang Donghui
Erschienen in: Advances in Computer Science and Education Applications
Verlag: Springer Berlin Heidelberg
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In most case, microprocessors might spend much time on testing the I/O port or component state, while adopting interrupt operation can overcome the shortcoming of CPU inquiring and improve the waiting efficiency of CPU. Interrupt handling can be classified into two categories: hardware interrupt and software interrupt. Adopting interrupt controller in synchronization operation can realize the concurrent work of CPU and peripherals and assure the computer has real-time process and control ability. Therefore, it is necessary to arrange a proper experiment to study the behaviour of interrupt controller. The interrupt handling process of S3C2410X is described, normally, S3C2410X interrupt controller requests interrupt from kernel interrupt FIQ or IRQ of S3C2410X after the interrupt arbitration. The experiment purpose and experiment equipment is detailed listed. Finally, the author explored into the experiment principle and experiment procedure.