https://devzone.nordicsemi.com/f/nordic-q-a/71715/freertos-compilation-issues-with-nrf52820Hello, I am working on nRF52820 custom development board with nRF5 SDK 17.0.2. I am using FreeRTOS and I experienced a lot of problems with compiling a simple project. I&#39;ve found the issue inside FreeRTOS port, but I cannot find any ticket system, soen-USTelligent Community 13Thu, 18 Feb 2021 12:14:32 GMThttps://devzone.nordicsemi.com/thread/295077?ContentTypeID=1Thu, 18 Feb 2021 12:14:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3169ef33-cb8a-4950-ab3e-0be002b6bc07Susheel Nuguru<p>Please take a look at the answers <a href="https://devzone.nordicsemi.com/f/nordic-q-a/48517/transferring-the-project-to-nrf52811-hardware---fpu-error">here</a>.</p> <p>Why did the include files you included had&nbsp;<span>__FPU_PRESENT&nbsp; flag set to 1?</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/294955?ContentTypeID=1Wed, 17 Feb 2021 18:31:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cca31f18-9ce5-404c-ac6c-30ea7f83a1f5www.FreeRTOS.org<p>If your device is a Cortex-M3 or a Cortex-M4 that does not have an FPU then use the port layer from <a href="https://github.com/FreeRTOS/FreeRTOS-Kernel/tree/main/portable/GCC/ARM_CM3">FreeRTOS/Source/portable/[compiler]/ARM_CM3</a>.</p> <p>If your device is a Cortex-M4 with an FPU or a Cortex-M7 then use the port layer from <a href="https://github.com/FreeRTOS/FreeRTOS-Kernel/tree/main/portable/GCC/ARM_CM4F">FreeRTOS/Source/portable/[compiler]/ARM_CM4F</a></p><div style="clear:both;"></div>