Examining and Supporting Multi-Tasking in EV3OSEK

Nils Hölscher; Kuan-Hsun Chen; Georg von der Brüggen; Jian-Jia Chen

Examining and Supporting Multi-Tasking in EV3OSEK

Nils Hölscher, Kuan-Hsun Chen, Georg von der Brüggen, Jian-Jia Chen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

Lego Mindstorms Robots are a popular platform for graduate level researches and college education purposes. As a portation of nxtOSEK, an OSEK standard compatible real-time operation system, EV3OSEK inherits the advantages of nxtOSEK for experiments on EV3, the latest generation of Mindstorms robots. Unfortunately, the current version of EV3OSEK still has some serious errors. In this work we address task preemption, a common feature desired in every RTOS. We reveal the errors in the current version and propose corresponding solutions for EV3OSEK that fix the errors in the IRQ-Handler and the task dispatching properly, thus enabling real multi-tasking on EV3OSEK. Our verifications show that the current design flaws are solved. Along with this work, we suggest that researchers who performed experiments on nxtOSEK should carefully examine if the flaws presented in this paper affect their results.

Original language	English
Title of host publication	Proceedings of OSPERT 2018
Subtitle of host publication	14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications
Editors	Heechul Yun, Adam Lackorzynski
Place of Publication	Lawrence, KS
Publisher	University of Kansas
Pages	25-30
Number of pages	6
Publication status	Published - 2018
Externally published	Yes
Event	14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications, OSPERT 2018 - Barcelona, Spain Duration: 3 Jul 2018 → 3 Jul 2018 Conference number: 14

Workshop

Workshop	14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications, OSPERT 2018
Abbreviated title	OSPERT 2018
Country/Territory	Spain
City	Barcelona
Period	3/07/18 → 3/07/18

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@inproceedings{7ceb3a92cf9942a1b74c90f33ad63302,

title = "Examining and Supporting Multi-Tasking in EV3OSEK",

abstract = "Lego Mindstorms Robots are a popular platform for graduate level researches and college education purposes. As a portation of nxtOSEK, an OSEK standard compatible real-time operation system, EV3OSEK inherits the advantages of nxtOSEK for experiments on EV3, the latest generation of Mindstorms robots. Unfortunately, the current version of EV3OSEK still has some serious errors. In this work we address task preemption, a common feature desired in every RTOS. We reveal the errors in the current version and propose corresponding solutions for EV3OSEK that fix the errors in the IRQ-Handler and the task dispatching properly, thus enabling real multi-tasking on EV3OSEK. Our verifications show that the current design flaws are solved. Along with this work, we suggest that researchers who performed experiments on nxtOSEK should carefully examine if the flaws presented in this paper affect their results.",

author = "Nils H{\"o}lscher and Kuan-Hsun Chen and {von der Br{\"u}ggen}, Georg and Jian-Jia Chen",

year = "2018",

language = "English",

pages = "25--30",

editor = "Heechul Yun and Adam Lackorzynski",

booktitle = "Proceedings of OSPERT 2018",

publisher = "University of Kansas",

address = "United States",

note = "14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications, OSPERT 2018, OSPERT 2018 ; Conference date: 03-07-2018 Through 03-07-2018",

}

Hölscher, N, Chen, K-H, von der Brüggen, G & Chen, J-J 2018, Examining and Supporting Multi-Tasking in EV3OSEK. in H Yun & A Lackorzynski (eds), Proceedings of OSPERT 2018: 14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications. University of Kansas, Lawrence, KS, pp. 25-30, 14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications, OSPERT 2018, Barcelona, Spain, 3/07/18.

Examining and Supporting Multi-Tasking in EV3OSEK. / Hölscher, Nils; Chen, Kuan-Hsun; von der Brüggen, Georg et al.
Proceedings of OSPERT 2018: 14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications. ed. / Heechul Yun; Adam Lackorzynski. Lawrence, KS: University of Kansas, 2018. p. 25-30.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Examining and Supporting Multi-Tasking in EV3OSEK

AU - Hölscher, Nils

AU - Chen, Kuan-Hsun

AU - von der Brüggen, Georg

AU - Chen, Jian-Jia

N1 - Conference code: 14

PY - 2018

Y1 - 2018

N2 - Lego Mindstorms Robots are a popular platform for graduate level researches and college education purposes. As a portation of nxtOSEK, an OSEK standard compatible real-time operation system, EV3OSEK inherits the advantages of nxtOSEK for experiments on EV3, the latest generation of Mindstorms robots. Unfortunately, the current version of EV3OSEK still has some serious errors. In this work we address task preemption, a common feature desired in every RTOS. We reveal the errors in the current version and propose corresponding solutions for EV3OSEK that fix the errors in the IRQ-Handler and the task dispatching properly, thus enabling real multi-tasking on EV3OSEK. Our verifications show that the current design flaws are solved. Along with this work, we suggest that researchers who performed experiments on nxtOSEK should carefully examine if the flaws presented in this paper affect their results.

AB - Lego Mindstorms Robots are a popular platform for graduate level researches and college education purposes. As a portation of nxtOSEK, an OSEK standard compatible real-time operation system, EV3OSEK inherits the advantages of nxtOSEK for experiments on EV3, the latest generation of Mindstorms robots. Unfortunately, the current version of EV3OSEK still has some serious errors. In this work we address task preemption, a common feature desired in every RTOS. We reveal the errors in the current version and propose corresponding solutions for EV3OSEK that fix the errors in the IRQ-Handler and the task dispatching properly, thus enabling real multi-tasking on EV3OSEK. Our verifications show that the current design flaws are solved. Along with this work, we suggest that researchers who performed experiments on nxtOSEK should carefully examine if the flaws presented in this paper affect their results.

M3 - Conference contribution

SP - 25

EP - 30

BT - Proceedings of OSPERT 2018

A2 - Yun, Heechul

A2 - Lackorzynski, Adam

PB - University of Kansas

CY - Lawrence, KS

T2 - 14th Annual Workshop on Operating Systems Platforms for Embedded Real-Time Applications, OSPERT 2018

Y2 - 3 July 2018 through 3 July 2018

ER -

Examining and Supporting Multi-Tasking in EV3OSEK

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Workshop

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