https://devzone.nordicsemi.com/f/nordic-q-a/35932/enabling---gnu-in-uvision-causes-sd-crashHello, We are porting legacy application to the nrf52840. We are using Keil uVision 5. The legacy code is using some gcc ideas and extensions so we are forced to use --gnu as an argument for the compile. Enabling the --gnu causes the Softdeviceen-USTelligent Community 13Fri, 29 Jun 2018 11:46:34 GMThttps://devzone.nordicsemi.com/thread/138265?ContentTypeID=1Fri, 29 Jun 2018 11:46:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:95164e34-d10d-485e-b220-931d23cb4ae2karidavidsson<p>I forgot the compiler is the ARM compiler version 5.</p><div style="clear:both;"></div>