Abstract
In the paper, principle, analysis and results related to a special embedded hardware/software architecture designed to prevent the real-time software from both timing disturbances and interrupt overloads is presented. It is supposed that the software is driven by a real-time operating system and that the software is critical, so it is expected not to fail. The architecture is composed of an FPGA (MCU) utilized to run the hardware (software) part of a critical application. Novelty of the proposed architecture can be seen in the fact it is able to adapt interrupt service rates to the actual software load, the priority of a task being executed by the MCU and priorities of interrupts occured. The load and priority are monitored by the FPGA on basis of low-overhead signals produced by the MCU for minimizing impacts of the load-monitoring hardware to the software execution because of the monitoring process.
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Strnadel, J. (2013). Load-Adaptive Monitor-Driven Hardware for Preventing Embedded Real-Time Systems from Overloads Caused by Excessive Interrupt Rates. In: Kubátová, H., Hochberger, C., Daněk, M., Sick, B. (eds) Architecture of Computing Systems – ARCS 2013. ARCS 2013. Lecture Notes in Computer Science, vol 7767. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36424-2_9
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DOI: https://doi.org/10.1007/978-3-642-36424-2_9
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