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Interrupt handling - UMD

Interrupt handling Andrew N. Sloss 25th, 2001 Interrupt handling1 CHAPTER 1 Interrupt handlingHandling interrupts is at the heart of an embedded system. By managing the inter-action with external systems through effective use of interrupts can dramatically improve system efficiency and the use of processing resources. The actual process of determining a good handling method can be complicated, challenging and fun. Numerous actions are occurring simultaneously at a single point and these actions have to be handled fast and efficiently. This chapter will provide a practical guide to designing an Interrupt handler and discuss the various trade-offs between the different methods.

interrupt can then be serviced by an interrupt service routine (ISR). Interrupt handling 5 Figure 1.3 Example of a simple interrupt system The interrupt handler is the routine that is executed when an interrupt occurs and an ISR is a routine that acts on …

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  Services, Interrupts, Interrupt service, The interrupt

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