You are required to read and agree to the below before accessing a full-text version of an article in the IDE article repository.

The full-text document you are about to access is subject to national and international copyright laws. In most cases (but not necessarily all) the consequence is that personal use is allowed given that the copyright owner is duly acknowledged and respected. All other use (typically) require an explicit permission (often in writing) by the copyright owner.

For the reports in this repository we specifically note that

  • the use of articles under IEEE copyright is governed by the IEEE copyright policy (available at http://www.ieee.org/web/publications/rights/copyrightpolicy.html)
  • the use of articles under ACM copyright is governed by the ACM copyright policy (available at http://www.acm.org/pubs/copyright_policy/)
  • technical reports and other articles issued by M‰lardalen University is free for personal use. For other use, the explicit consent of the authors is required
  • in other cases, please contact the copyright owner for detailed information

By accepting I agree to acknowledge and respect the rights of the copyright owner of the document I am about to access.

If you are in doubt, feel free to contact webmaster@ide.mdh.se

Support for Hierarchical Scheduling in FreeRTOS


Note:

Awarded IEEE-ies scholarship for this paper.

Publication Type:

Conference/Workshop Paper

Venue:

16th IEEE International Conference on Emerging Technologies and Factory Automation

Publisher:

IEEE


Abstract

This paper presents the implementation of hierarchical scheduling framework HSF on an open source real-time operating system FreeRTOS to support the temporal isolation of a number of real-time components (or applications) on a single processor. The goal is to achieve predictable integration and reusability of independently developed components or tasks. It presents the initial results of the HSF implementation by running it on an AVR 32-bit board EVK1100. The paper addresses the fixed-priority preemptive scheduling at both global and local scheduling levels. It describes the detailed design of HSF with the emphasis of doing minimal changes to the underlying FreeRTOS kernel and keeping its API intact. Finally it provides (and compares) the results for the performance measures of periodic and deferrable servers with respect to the overhead of the implementation.

Bibtex

@inproceedings{Inam2155,
author = {Rafia Inam and Jukka M{\"a}ki-Turja and Mikael Sj{\"o}din and Mohammad Ashjaei and Sara Afshar},
title = {Support for Hierarchical Scheduling in FreeRTOS},
note = {Awarded IEEE-ies scholarship for this paper.},
month = {September},
year = {2011},
booktitle = {16th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA11)},
publisher = {IEEE},
url = {http://www.es.mdu.se/publications/2155-}
}