SD132 NRF52 gcc debugging

[Martin]

Hi

I'm trying to port my firmware to the NRF52 DK, but I'm having trouble getting it to work. Could you give me a hint based on the stack trace below, what the problem might be?

Thread #1 <main> (Suspended : Signal : SIGTRAP:Trace/breakpoint trap)	
	0x20001248	
	<signal handler called>() at 0xfffffff9	
	0xf5bbf576	
	0x1000000	

I'm using

• SEGGER J-Link GDB Server V5.12g
• gcc 5.4 q2
• Eclipse Mars

Everything works fine for the NRF51 DK... This is driving me crazy..

Thanks for your hints in advance!

[Martin]

These are my ld-file settings:

MEMORY
    {
      FLASH (rx) : ORIGIN = 0x1f000, LENGTH = 0x61000
      RAM (rwx) :  ORIGIN = 0x20002080, LENGTH = 0xdf80
    }

The output of nrfjprog readregs is

R0:   0x0001E0D1
R1:   0x20001248
R2:   0x00002000
R3:   0x00000000
R4:   0x10001000
R5:   0x00000000
R6:   0x00000000
R7:   0x0001E0D1
R8:   0x00000000
R9:   0x00000000
R10:  0x00000000
R11:  0x00000000
R12:  0x00000000
SP:   0x20001230
LR:   0xFFFFFFF9
PC:   0x20001248
xPSR: 0x61000003
MSP:  0x20001230
PSP:  0x00000000

Meanwhile I also tried to compile with gcc 4.9 and 5.2 without success. The symptoms stay the same... :-(