https://devzone.nordicsemi.com/f/nordic-q-a/30884/does-the-s140-softdevice-use-the-fpuThese posts indicate there was a problem at least at one point with the S132 SoftDevice erroneously requiring FPU: https://devzone.nordicsemi.com/f/nordic-q-a/8133/nrf52-softdevice-s132-use-of-fpu https://devzone.nordicsemi.com/f/nordic-q-a/8125/nrf52en-USTelligent Community 13Tue, 27 Feb 2018 09:02:17 GMThttps://devzone.nordicsemi.com/thread/122063?ContentTypeID=1Tue, 27 Feb 2018 09:02:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:95b6f7d8-f241-4640-9447-db2871182980Sigurd<p>Hi,</p> <p>The SoftDevice does not use the ARM Cortex-M4 Floating-point Unit (FPU) and does not configure any floating-point registers. The issue in the post you linked to was caused by a bug in the&nbsp;<span>S132-SD.1.0.0.3_alpha 3 years ago, and&nbsp;was fixed in the next release.</span></p><div style="clear:both;"></div>