https://devzone.nordicsemi.com/f/nordic-q-a/1791/nrf51-development-without-mdk-armThis is my first time working on Nordic-made IC. My previous experience is on PIC which has its own compiler (relatively cheap at 200$). I&#39;m shifting to nRF51822 development kit and I recently read a document about development with GCC and Eclipseen-USTelligent Community 13Tue, 04 Mar 2014 18:48:43 GMThttps://devzone.nordicsemi.com/thread/7824?ContentTypeID=1Tue, 04 Mar 2014 18:48:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:add11062-5d48-4160-ac62-0aba0ceab9aeomega<p>Thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/7823?ContentTypeID=1Tue, 04 Mar 2014 18:47:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:819011f6-190e-4df9-8e68-5f21a664b4edcocoa<p>Absolutely no.</p> <p>Nordic EK board has onboard a debugger (Segger Jlink) , here is the <a href="http://www.segger.com/jlink-software.html">link</a>.</p> <p>Download Segger sw and start to code, flash and debug, all for free.</p> <p>-c</p><div style="clear:both;"></div>