https://devzone.nordicsemi.com/f/nordic-q-a/50971/openthread-with-free-rtos---cc310-mbedtls-cryptoHi all, I am successfully using Openthread for an application on the nrf52840. As the application is growing I&#39;m thinking about utilizing a RTOS. Therefore, I am currently looking into Zephyr and FreeRTOS (which I already used for other projects). en-USTelligent Community 13Thu, 15 Aug 2019 08:16:16 GMThttps://devzone.nordicsemi.com/thread/204232?ContentTypeID=1Thu, 15 Aug 2019 08:16:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e2d8f650-5105-4638-842b-936a88e1ad3aSusheel Nuguru<p>Hi Thomas,</p> <p>I have been working a lot with FreeRTOS but I haven&#39;t tried it with CC310.&nbsp;</p> <p>I need to ask the experts of OpenThread to comment on this thread(not sure when they can response). But my initial thoughts</p> <p>1) The power consumption would go a bit higher than without RTOS (about 50-80uA) for the bookkeeping of the FreeRTOS kernel itself.</p> <p>2) In theory, yes. CC310 is treated like a peripheral to CortexM4 and FreeRTOS can work with different peripherals. I have also heard about the limitation of nRF&nbsp; CC310 libraries unable to work in a multi-thread context, but I do not know the specifics of it. As I haven&#39;t tried this combo myself, I never had the need to dig into it.</p><div style="clear:both;"></div>