Response Time Analysis of Composable Micro-Protocols

Ventura, J. and Rodrigues, J. and Rodrigues, L.

Selected sections of this report will be published in the Proceedings of the 4th IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC 2001), Magdeburg, Germany, May, 2 - 4, 2001, pp 335-342.


The paper presents a generic framework to analyse the timing behavior of protocol graphs derived from the composition of micro-protocols. The model assumes that a protocol stack is composed of a set of protocol objects that interact through the exchange of events. A specific task is associated with each relevant protocol event and for each task, the periods and offsets are derived from a description of the interactions between adjacent protocols. To illustrate the use of the model, a stack of modular reliable group communication protocols for the CAN field-bus is analysed.

Also available extended report (gzip postscript), (pdf) .

Luís Rodrigues