Abstract
This chapter covers interrupts and exceptions processing. It describes the operating modes of ARM processors, exception types and exception vectors. It explains the functions of interrupt controllers and the principles of interrupts processing in detail. Then it applies the principles of interrupts processing to the design and implementation of interrupt-driven device drivers. These include drivers for timers, keyboard, UARTs and SD cards, and it demonstrates the device drivers by example programs. It explains the advantages of vectored interrupts over non-vectored interrupts. It shows how to configure the Vector Interrupt Controllers (VICs) for vectored interrupts, and demonstrates vectored interrupts processing by example programs. It also explains the principles and importance of nested interrupts and demonstrates nested interrupts processing by example programs.
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Wang, K.C. (2017). Interrupts and Exceptions Processing. In: Embedded and Real-Time Operating Systems. Springer, Cham. https://doi.org/10.1007/978-3-319-51517-5_3
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DOI: https://doi.org/10.1007/978-3-319-51517-5_3
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