https://devzone.nordicsemi.com/f/nordic-q-a/56817/softdevice-merge-into-debug-fwHello everyone. I have made the next solution for merging softdevice into debug fw. i &#39;ve added the next lines in ld script MEMORY { SD_FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x27000 SD_RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x2260 .....en-USTelligent Community 13Thu, 23 Jan 2020 07:53:41 GMThttps://devzone.nordicsemi.com/thread/230489?ContentTypeID=1Thu, 23 Jan 2020 07:53:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:886e4698-2b9e-4ef8-9cb3-b0917daa24aaVidar Berg<p>Hi,</p> <p>I have never tried to link in a binary image, but as a troubleshooting step, I would suggest to read out the memory from 0x0-0x27000 after you have loaded your merged binary, then repeat this with the original Softdevice hex and compare the results.</p> [quote user=""]But debug stops in undefined space after i call ble_stack_init()[/quote] <p>&nbsp;Not sure what you mean by undefined. Is the program counter inside the Softdevice&#39;s memory range?</p><div style="clear:both;"></div>