https://devzone.nordicsemi.com/f/nordic-q-a/63371/using-segger-embedded-studio-for-nrf51822The most relevant thread on this topic is two years old. I do not want to use Keil as it is so costly and the project may not go anywhere. I am not interesting in using the command line - beyond my memorization capacity and a great source of frustrationen-USTelligent Community 13Sun, 05 Jul 2020 20:45:40 GMThttps://devzone.nordicsemi.com/thread/258480?ContentTypeID=1Sun, 05 Jul 2020 20:45:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d06e1281-11c4-4d31-ade2-df5708d14ac5J&#248;rgen Holmefjord<p>Hi,</p> <p>It is possible to use SES with nRF51, but SES support was not added to the latest SDK that supported nRF51. Please have a look at <a href="https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/segger-embedded-studio-a-cross-platform-ide">this tutorial</a>, it includes&nbsp;the instructions and files needed to get you started.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>