In this paper, we present the mosartMCU, which is a hardware/software co-designed Microcontroller Unit (MCU) with Operating System (OS)-awareness. Here, we present how the OS-awareness is implemented in our mosartMCU, running on a Field Programmable Gate Array (FPGA). Further, we show some concepts based on the OS-awareness, solving issues that are inefficient or even not applicable to be handled in pure software solutions. The synthesize results present the impact of the OS-awareness in the hardware. Hereby, the resource utilization remains constant although the number of OS instances, as tasks or events, changes.
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