Abstract
The Unified Modeling Language (UML) is now widely accepted by the software community. More recently, UML has attracted attention as a unification language for systems description combining both hardware and software components. First, it has been recognized that electronic systems design can no longer be seen as an isolated hardware design activity. In addition, recent advances in tools supporting high level hardware synthesis from electronic system level languages, which are predominantly based on C/C++, open new perspectives for automatic code generation from UML models and opportunities to enhance the link between a high level specification and a concrete hardware/software implementation. Finally, UML has become a general purpose language which can be customized for specific purposes, such as the modelization of electronic systems. This chapter presents recent advances of the UML language applied to System-on-Chip (SoC) and hardware-related embedded systems design. In particular, several examples of specific UML customizations (UML profiles) relevant for SoC design are summarized. Various approaches associating UML with existing hardware/software design languages are presented. The question of tool support and association with well-known simulation environments, such as MATLAB/Simulink, is addressed as well. A concrete example of a UML profile for hardware/software co-modeling and code generation for hardware/software co-simulation is presented in more details for illustration purposes.
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