SVCALL sd_softdevice_enable not returning

[MarcK]

Dear community,

I was working with a modified code based on an example for switching the leds on/off in a Mesh BLE network. Everything was working well until I tried to modify it to add a provisioner role. Then it starts stopping at this line:

SVCALL(SD_SOFTDEVICE_ENABLE, uint32_t, sd_softdevice_enable(nrf_clock_lf_cfg_t const * p_clock_lf_cfg, nrf_fault_handler_t fault_handler));

I tried to come back to the code when it was working but nothing change.

I read all discussions in this forum related to this issue and I implement this change WITHOUT any success:

• Change of the clock parameters
• Change of the RAM start
• Check of the SDK/SoftDevice version

Maybe my debugging experience is limited... but it quite hard to understand where the issue comes from. Here what I can provide you 

• the fault_handler returns result 0x000275a5. This value is copied in r1 (ldr r1, =0x000275a5).
• With a project which works well, I have noticed that the fault_handler is 0xffffffff and the operation in assembly is ldr r1, =0x00028EOD

I am wondering what mean this value 0x000275a5?

Maybe I need to modify the operation with ldr r1, =0x00028EOD? If yes, where to change this operation?

Please do not hesitate if you have any other ideas.

[Mttrinh]

Hi,

I'm not sure what that value means. Try setting the define DEBUG in your preprocessor definitions. Do you see any error codes in your debug terminal? Can you provide some logs I can take a look at?

[MarcK]

Hi,

Can you advise on the setting of DEGUG in preprocessor definitions please? Here is a picture of my configuration.

Sorry but my problem is that I do not see any error code in debug terminal.

This is the only thing I can see:

[MarcK]

Ok it works. I put myself in Debug mode and moved line by line by putting breakpoints. I was able to move forward a little bit more at each restart and finally I deleted all breakpoints and test to launch the full application and it worked. I do not understand what did wrong. I hope it will not happen again... Thanks.

[Mttrinh]

Glad it worked out for you :)