Catch HardFault

RE: Catch HardFault

Sigurd — Mon, 08 May 2023 07:34:42 GMT

Hi,

[quote userid="111887" url="~/f/nordic-q-a/99340/catch-hardfault/424153"]Unknown function at 0x00000A60[/quote]

0x00000A60 is the hardfault exception handler inside the MBR. It's normally forwarded to the main application, but will get trapped if breakpoint on hardfault is enabled in SES.
You can disable it like this:

RE: Catch HardFault

BvdP4Celsius — Mon, 08 May 2023 07:26:19 GMT

Hi Sigurd,

I had the lib already added to the project, the HARDFAULT_HANDLER_ENABLED is set in skf_config.h and app_config.h. The preprocessor define DEBUG_NRF was set. Running the program in Segger studio (debug mode) resulted in Unknown function at 0x00000A60

I am unable to set a breakpoint in the HardFault_process (looks like no code is generated here, optimization is set to off). HardFault_Handler is not called.
Is there anything else I forgot to set?

Regard,
Bob

RE: Catch HardFault

Sigurd — Thu, 04 May 2023 12:53:27 GMT

Hi,

When adding the HardFault handling library to your project

Add these to your projects:

$(SDK_ROOT)/components/libraries/hardfault/hardfault_implementation.c
$(SDK_ROOT)/components/libraries/hardfault/nrf52/handler/hardfault_handler_gcc.c (variant here depends on your toolchain)

And set HARDFAULT_HANDLER_ENABLED to 1 in sdk_config.h, and add DEBUG_NRF in your preprocessor definitions