https://devzone.nordicsemi.com/f/nordic-q-a/114548/thread-stack-sizing-why-powers-of-2This is kind of just a general question out of curiosity. Is there a functional reason to ensure that all stack sizes are powers of 2? I&#39;ve seen it throughout many examples and also it was mentioned in DevAcademy, but no reasoning was given. It seemsen-USTelligent Community 13Fri, 06 Sep 2024 19:25:14 GMThttps://devzone.nordicsemi.com/thread/501595?ContentTypeID=1Fri, 06 Sep 2024 19:25:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:01f5013b-2fec-4230-b156-2183573dd612Turbo J<p>MPU only supports power-of-2 region sizes and very few regions, so you need a power-of-2 size when using it for stack protections.</p> <p>Otherwise feel free to explore stack size - but keep in mind that stack overflows can be difficult to detect correctly.</p> <p>I&#39;ve used a 24KB stack for an MP3 decoder thread once - there are no other limits to stack size other than alignment.</p><div style="clear:both;"></div>