Improving flexibility and fault-management in CAN-based "Shared-Clock" architectures

Authors:
Muhammad Amir;Michael J. Pont
Affiliations:
Embedded Systems Research Group, University of Leicester, University Road, Leicester LE1 7RH, UK;Embedded Systems Research Group, University of Leicester, University Road, Leicester LE1 7RH, UK
Venue:
Microprocessors & Microsystems
Year:
2013

Citing 8
Cited 0

Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment

Journal of the ACM (JACM)
Patterns for time-triggered embedded systems: building reliable applications with the 8051 family of microcontrollers

Patterns for time-triggered embedded systems: building reliable applications with the 8051 family of microcontrollers
CAN for Critical Embedded Automotive Networks

IEEE Micro
A Columbus' Egg Idea for CAN Media Redundancy

FTCS '99 Proceedings of the Twenty-Ninth Annual International Symposium on Fault-Tolerant Computing
An Analysable Bus-Guardian for Event-Triggered Communication

RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
Designing embedded systems using patterns: a case study

Journal of Systems and Software - Special issue: Computer systems
Two novel shared-clock scheduling algorithms for use with 'Controller Area Network' and related protocols

Microprocessors & Microsystems
Erratum: Comments on: "Two novel shared-clock scheduling algorithms for use with 'Controller Area Network' and related protocols"

Microprocessors & Microsystems

Quantified Score

Hi-index	0.00

Visualization

Abstract

The Controller Area Network (CAN) protocol is widely employed in distributed control systems in a number of sectors (including automotive, industrial, medical and satellite systems). In many such sectors, predictable behavior is a key consideration: such a characteristic is usually associated with time-triggered (TT) system architectures rather than with event-triggered solutions which are more common in CAN systems. Previous studies have illustrated how TT ''Shared-Clock'' (S-C) algorithms can be used in conjunction with commercial-off-the-shelf (COTS) microcontrollers for creating reliable distributed control systems at low cost. In such studies, it has generally been assumed that S-C designs will be implemented using a bus topology on a CAN network. Such designs met cost requirements but certain flexibility/reliability issues predominantly presented by their bus topology have made their use controversial in safety-critical applications. In this paper, we demonstrate that the use of a Shared-Clock protocol with a novel CAN-based star topology synthesized from COTS components can improve the flexibility and reliability of CAN-based S-C designs without significantly increasing costs.