Title: Interrupt nesting method based on time slice in embedded software

Authors: Yingjie Wang; Kuanjiu Zhou; Jie Pan; Mingchu Li

Addresses: Software School, Dalian University of Technology, Dalian 116620, China; College of Information Engineering, Dalian University, Dalian 116622, China; Liaoning Provincial Key Laboratory of Ubiquitous Network and Service Software, Dalian 116620, China ' Software School, Dalian University of Technology, Dalian 116620, China; Liaoning Provincial Key Laboratory of Ubiquitous Network and Service Software, Dalian 116620, China ' Software School, Dalian University of Technology, Dalian 116620, China ' Software School, Dalian University of Technology, Dalian 116620, China; Liaoning Provincial Key Laboratory of Ubiquitous Network and Service Software, Dalian 116620, China

Abstract: This paper proposed an interrupt handler with a time slice, which is enabled to complete the executing sections of low priority interrupt within the time period of the time slice. This method could not only reduce the numbers of interrupt threads rotations but also save the space to record the interruption scene for interrupt execution. The experimental part used the two types of interrupt handlers by the ordinary queuing model and inserting time slices consecutively, to simulate two-priority interrupt processing in a system. The comparison of simulation experiments shows that: the interrupt handler with time slices could obviously reduce the rotation number of interrupt handling thread switched, thereby saving the space for the interruption of site preservation and providing a reference for further research on the interruption of embedded systems.

Keywords: interrupt priority; interrupt time slice; queuing model.

DOI: 10.1504/IJICT.2020.108962

International Journal of Information and Communication Technology, 2020 Vol.17 No.2, pp.107 - 128

Received: 14 May 2019
Accepted: 17 Jul 2019

Published online: 09 Jul 2020 *

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