Representation of function variants for embedded system optimization and synthesis
Kai R. Richter, Dirk Ziegenbein, Rolf Ernst, Lothar Thiele, Jürgen Teich · 1999
Many embedded systems are implemented with a set of alternative function variants to adapt the system to different applications or environments. This paper proposes a novel approach for the coherent representation and selection of function variants in the different phases of the design process. In this context, the modeling of reconfiguration of system parts is supported in a natural way. Using a real example from the video processing domain, the approach is explained and validated. 1 Introduction Many embedded systems are implemented with a fixed core function and a set of alternative function variants to adapt the system to different applications or environments. Examples are TV sets which can be adapted to different standards or automotive control systems to be used in countries with different emission laws. Function variants are mutually exclusive, i. e. only one variant of a set of alternative functions is selected a time. There may be several of those variant sets in one embedde...