The software architecture of a critical embedded control system generally consists of a set of multi-periodic communicating tasks. In order to be able to describe such a system, we define the notion of semaphore precedence constraint, which supports multi-rate communications that follow regular repetitive patterns. We propose a feasibility test for EDF and we study three implementations, for periodic task sets related by such extended precedences on monoprocessor architectures.
Published in:
Emerging Technologies & Factory Automation (ETFA), 2011 IEEE 16th Conference on
Date of Conference: 5-9 Sept. 2011