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Creating real-time ready systems with ACRN and Ubuntu

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At Embedded World 2020, we showed Ubuntu running in parallel with the real-time OS Zephyr, on top of ACRN. Zephyr is an RTOS developed under the Linux Foundation umbrella and backed by industry leaders like Intel, NXP and Linaro. It supports a wide range of hardware, from MCUs to x86 boards. For the demo, we use an Intel NUC where we reserve a core and a small amount of memory for Zephyr. Ubuntu 18.04 then uses the rest of the systems resources. ACRN takes control of the system on boot and then starts Zephyr and Ubuntu. We show how Zephyr is able to perform calculations at a constant rate, unaffected by the additional Ubuntu payload. Isolation of the two operating systems is guaranteed as fatal events on one OS do not affect the other, which shows the readiness for safety-critical systems.

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