View : 25 Download: 0

Evaluations of hardware and software-based context switching methods in cortex-M3 for embedded applications

Title
Evaluations of hardware and software-based context switching methods in cortex-M3 for embedded applications
Authors
Choi H.Park S.
Ewha Authors
박상수
SCOPUS Author ID
박상수scopus
Issue Date
2015
Journal Title
International Journal of Smart Home
ISSN
1975-4094JCR Link
Citation
vol. 9, no. 2, pp. 111 - 122
Keywords
Context switchingCortex-M3Embedded systemPendSVSoftware trapuC/OS-II
Publisher
Science and Engineering Research Support Society
Indexed
SCOPUS scopus
Abstract
In contrast to the previous ARM microprocessor, the ARM Cortex-M3 processor provides a method for accelerating context switching, which is supported by dedicated hardware logic vis a software interrupt (or trap). In general, it is expected that retaining the context of a task using hardware will reduce the context switching time, but it is also known that software interrupts or traps incur their own overheads. In this study, we propose an algorithm for analyzing the performance of context switching methods in uC/OS-II the Cortex-M3. According to our experimental analysis, we obtained the same results using the algorithm in an ideal state and in a real application. We expect that the algorithms and experimental results described in this study may help embedded system designers by providing quantitative measures in the context switching time of Cortex-M3 using a real-world application. © 2015 SERSC.
DOI
10.14257/ijsh.2015.9.2.10
Appears in Collections:
엘텍공과대학 > 컴퓨터공학과 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE