https://devzone.nordicsemi.com/f/nordic-q-a/5259/how-large-is-the-nrf51822-s-stackI&#39;m concerned about stack overflow as I consider using a linear fit function which declares 5 local variables as floats and accepts 5 pointers. 5floats * 4B/float + 5pointers * 4B /pointer =&gt; 40B?en-USTelligent Community 13Mon, 26 Jan 2015 14:35:41 GMThttps://devzone.nordicsemi.com/thread/18401?ContentTypeID=1Mon, 26 Jan 2015 14:35:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:465923bf-9cc6-4240-9967-b677ddbb6a9bHung Bui<p>I agree with Hoang, by default we declare 2KB of stack for application (in arm_startup_nrf51.s file) and it should be plenty of space for your variables. If you think the answer from Hoang is correct, please accept the answer.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/18400?ContentTypeID=1Fri, 23 Jan 2015 08:21:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2e6927ca-3ddb-44ed-b0d3-40f0ac4c0954Nguyen Hoan Hoang<p>No worries, there are plenty of space left for you to use. You can declare 10 times that without any problem.</p><div style="clear:both;"></div>