Debug is not executing in custom Nordic Board

[balaji]

Hi,

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 at fallowing two instruction.

0xFFFFFFFC 0000 MOVS r0,r0 0x00000000 FFFFFFFF DCD 0xFFFFFFFF ; ? Undefine.

but i checked same application with nordic evaluation board.

there debugging is working fine.

Kindly suggest us what will be issue in custom board.

Regards Balaji

[Ole Morten]

Based on your snippet above, it seems like your device tries to "run" non-written flash. Have you checked that you have actually flashed the softdevice to your chip? Please follow the debug steps from your other question.

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).