Formal Analysis of a Hardware Dynamic Task Dispatcher with CADP
Etienne Lantreibecq and Wendelin Serwe
Science of Computer Programming, Feb. 2014
Abstract: The complexity of multiprocessor architectures for mobile multi-media applications renders their validation challenging. In addition, to provide the necessary flexibility, a part of the functionality is realized by software. Thus, a formal model has to take into account both hardware and software. In this paper we report on the use of the CADP toolbox for the formal modeling and analysis of the DTD (Dynamic Task Dispatcher), a complex hardware block of an industrial hardware architecture developed by STMicroelectronics. The formal LNT model developed by an industry engineer was appropriate to discuss implementation details with the architect and enabled model-checking temporal properties expressed in MCL, which discovered a possible problem. We investigated the existence of the problem in the architect's C++ model using co-simulation of the C++ and the formal LNT models.