floating point math with SDK 15 and nRF52840https://devzone.nordicsemi.com/f/nordic-q-a/36429/floating-point-math-with-sdk-15-and-nrf52840I am using a three axis mems sensor and will need to computer trig functions. If I use the math.h in the Segger Embedded Studio will it use the floating point hardware in the nRF52840 ?en-USTelligent Community 13Mon, 23 Jul 2018 20:56:27 GMTRE: floating point math with SDK 15 and nRF52840https://devzone.nordicsemi.com/thread/141045?ContentTypeID=1Mon, 23 Jul 2018 20:56:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:69357f98-e0ee-435d-a1b8-84c3f24851f3weightwatcherphil<p>thank you</p><div style="clear:both;"></div>RE: floating point math with SDK 15 and nRF52840https://devzone.nordicsemi.com/thread/140711?ContentTypeID=1Thu, 19 Jul 2018 14:44:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:89b7b9be-229f-4d47-b16f-5bc7e5150c2fMartin Lesund<p>Hi Philip,</p> <p>In the file &quot;system_nrf52840.c&quot; you can see:<br /><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-a4ae85a613894d8b973df6c4432fdf06/pastedimage1532011267440v1.png" alt=" " /></p> <p>and from &quot;project options&quot;:</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-a4ae85a613894d8b973df6c4432fdf06/pastedimage1532011491046v2.png" alt=" " /></p><div style="clear:both;"></div>RE: floating point math with SDK 15 and nRF52840https://devzone.nordicsemi.com/thread/140112?ContentTypeID=1Tue, 10 Jul 2018 17:07:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59662f1e-9766-4b6e-b521-e38a09d6a824weightwatcherphil<p>The file is shown below.&nbsp; The question is that when Nordic built the BLE examples for the nRF52840 processor did they make sure the Segger Embedded Studio uses the FPU.</p> <p>&nbsp;</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-a4ae85a613894d8b973df6c4432fdf06/pastedimage1531242441325v1.png" alt=" " /></p><div style="clear:both;"></div>RE: floating point math with SDK 15 and nRF52840https://devzone.nordicsemi.com/thread/140111?ContentTypeID=1Tue, 10 Jul 2018 08:38:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4f1e38bc-7472-4bd2-aaad-a081e9e632c5Martin Lesund<p>Hi Philip,</p> <p>Where do you have this math.h file from?</p> <p>(<a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52840.ps%2Fcpu.html&amp;cp=2_0_0_3_0" target="_blank" rel="noopener noreferrer">CPU documentation nRF52840)</a></p><div style="clear:both;"></div>