https://devzone.nordicsemi.com/f/nordic-q-a/752/debug-is-not-executing-in-custom-nordic-boardHi, We have Nordic custom board. flashing simple c program to custom board is done fine. cant able to get expected result. so we tried for step by step debugging. but when i start debugging , debugging is not start from main. it is hanged aten-USTelligent Community 13Mon, 28 Oct 2013 09:31:28 GMThttps://devzone.nordicsemi.com/thread/3800?ContentTypeID=1Mon, 28 Oct 2013 09:31:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c5255790-eae1-410d-b4f5-54318f6fcb7cOle Morten<p>Based on your snippet above, it seems like your device tries to &quot;run&quot; non-written flash. Have you checked that you have actually flashed the softdevice to your chip? Please follow the debug steps from your <a href="https://devzone.nordicsemi.com/index.php/how-to-test-the-radio-on-the-hardware#reply-2361">other question</a>.</p> <p>You can also try to just flash blinky to your chip, and make sure that runs, when placed at address 0x0 (not 0x14000, which would require a softdevice to be programmed).</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/3799?ContentTypeID=1Sat, 26 Oct 2013 20:09:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:048e0f1c-7c36-4fd7-959c-73411a0b7a21cocoa<p>DCD should be a Keil assembler directive .</p> <p>Here need a help from a windows/Keil guy.</p> <p>-c</p><div style="clear:both;"></div>