nrf_log_process() causes mcu crash

[Liny]

I recently encountered a MCU crash problem. I think it is related to NRF_ LOG_ Process (). I used the simulation to catch the following scenarios. MCU crashes at this time.

Please help me analyze the possible problem. Thank you.

NOTE ：

i use #define NRF_LOG_DEFERRED 1，and added code in main（），as follows：

while（1）

{

UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());

}

i am very glad to receive your answer，thanks！

 

[Jared]

Hi,

Can you follow the instructions in this thread to activate the Hardfault handling library. Next, can you rerun the application and see if a more detailed log is printed when the application stops?

regards

Jared

[Liny]

"Can you follow the instructions in this thread to activate the Hardfault handling library"

sorry,i can't understand it,can you describe it in more detail?

it seem likes crash in "strlen()"function, and seem like "acess to illegal memory",do you have any suggestion to solve this problem?

[Jared]

Hi,

The hardfault library will print out more info about what that is causing this to fault. You have to enable the hardfault library first by:

1. Enabling HARDFAULT_HANDLER_ENABLED  in sdk_config.h by setting it to 1.
2. Add  hardfault_implementation.c and hardfault_handler_gcc.c from \components\libraries\hardfault to your project.

Do you see a more verbose log being printed now?

regards

Jared 

[Rafalino]

I have exactly the same issue:

Liny said:

it seem likes crash in "strlen()"function, and seem like "acess to illegal memory",do you have any suggestion to solve this problem?

nRF52840,  SDK 17.0.2, SEGGER 6.20a.

Is there any fix/workaround ?