Peter Oehler

KANDIS—a tool for construction of mixed analog/digital systems

The synthesis of electronic circuits on system level offers the possibility to find better locations of the A/D interfaces and to determine parameters like clock rates and bit widths. KANDIS, a tool for (K)construction of mixed ANalog/DIgital Systems, uses a structure-oriented expert system for these tasks. The main idea is the successive construction on functional and algorithmic blocks with different kinds of tools and the permanent exchange of resource limitations with constraint propagation.

A methodology for system-level synthesis of mixed-signal applications

This paper gives an overview of a methodology for the design of mixed-signal systems. The methods support the user in defining important system parameters such as sampling frequencies, bit widths, or the type of applicable analog-to-digital converters. This is done by a knowledge-based system, which calculates estimations for the resulting system properties. The methodology starts with an abstract specification of the intended behavior, which is mapped onto a block diagram. The block diagram can then be evaluated by knowledge-based methods and by simulation. The methods have been implemented as a prototypical design tool, which has been used for the design of several case studies.

Automotive System Design and Autosar

Automotive system design demands for new solutions for management of complexity and heterogeneity. Heterogeneity in automotive systems does not only cover different physical domains that are combined in a complex system. Heterogeneity in automotive systems also means optimized, proprietary solutions and interfaces. The fact that many tiers are involved, and many configurations have to be maintained is an increasing challenge. This chapter gives an overview of an approach to hide the heterogeneity behind a common and unique interface: AUTOSAR.