https://devzone.nordicsemi.com/f/nordic-q-a/47686/segger-undefined-symbol-endHi, I&#39;m trying to use a static library that I developed in example blinky app in segger studio and stuck in.First of all,I compiled my source code on debian with arm-none-eabi-gcc, -specs=rdimon.specs . Then I added the static lib to segger studio,en-USTelligent Community 13Mon, 10 Jun 2019 08:41:58 GMThttps://devzone.nordicsemi.com/thread/191789?ContentTypeID=1Mon, 10 Jun 2019 08:41:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:97d030cc-f12f-4d26-b216-127936d1be33grpnr<p>It seems one of my dependencies is not&nbsp;<span>compatible for nrf51 series.</span></p> <p><span>Thx for response</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/189037?ContentTypeID=1Fri, 24 May 2019 12:10:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c2545693-68fb-4f67-96b0-1b80c39c6e41Vidar Berg<p>Hi,</p> <p>I&#39;m not sure why the end symbol needs to be defined. But I would suggest that you try using the same compiler/linker flags that we use to build the uECC library in&nbsp;\nRF5_SDK_12.3.0_d7731ad\external\micro-ecc\nrf51_armgcc\armgcc&nbsp;</p> <p>Segger projects which include this library can be found in SDK 14.2.0 and later, but only for the nRF52 series.&nbsp;</p><div style="clear:both;"></div>