Abstract
Complex vehicle applications and the need of reducing the number of processing units are giving audience to virtualization on multicore devices. Such solution offers flexibility, but it is challenging in terms of timing predictability and resources partitioning. This explains why timing analysis is a crucial topic for Functional Safety. A knowledge of tasks and their behavior, applied at debug or runtime, allows balancing resources, refining scheduling and understanding the issues of a safety critical system. In the paper, we present the Execution Tracing Unit (ETU), a hardware support to AUTOSAR Run-Time Interface (ARTI), whose scope is to define an interface between tracing and analysis tools. The hardware element introduces a limited overhead if synthetized for an xczu9eg FPGA device. Meanwhile, simulations demonstrated that the peripheral is able to manage occurring software items with a very fast activation rate (an average of 4 clock cycles between two subsequent activations).
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Cosimi, F., Tronci, F., Saponara, S., Gai, P. (2023). Analysis, Design and Synthesis of an Execution Tracing Unit (ETU) Based on AUTOSAR Run-Time Interface (ARTI). In: Berta, R., De Gloria, A. (eds) Applications in Electronics Pervading Industry, Environment and Society. ApplePies 2022. Lecture Notes in Electrical Engineering, vol 1036. Springer, Cham. https://doi.org/10.1007/978-3-031-30333-3_11
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DOI: https://doi.org/10.1007/978-3-031-30333-3_11
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