Modeling field bus communications for automotive applications

International audience; In this paper, we present a modeling platform using the SystemC-AMS language to simulate field bus communications in automotive applications. Our platform includes the model of an I/O controller IP (in this specific case an I²C controller) that interfaces a master microprocessor with its peripherals on the field bus. Our platform shows the execution of the embedded software and its analog response on the lines of the bus. Moreover, it also takes into account the influence of the circuits’ I/O by including their IBIS models in the SystemC-AMS description, as well as the bus lines imperfections. Finally, we present simulation results to validate our platform and show that the overhead introduced by SystemC-AMS over a pure digital SystemC simulation is about 10%