Debugging 'ble_app_hids_keyboard_pca10040_s132' example

[rakesh_hirur]

Hi,

I am working on Keyboard HID example application. I am trying to 'step into' the code (debugging) to understand  the working of the code. But the example ends up in app_error_fault_handler. The example works fine when running freely. So my question is why is the execution ending up in the app_error_fault_handler in debug mode?

Thanks in advance.

[Jørgen Holmefjord]

Hi,

This question have been answered countless times before. It is not possible to step-debug the application when the softdevice is running. The debugger will halt the CPU, preventing the softdevice from handling timing critical events. This will cause the softdevice to assert, and put you in the error handler. 

You can look into Segger Monitor Mode Debugging if you want to debug the application with softdevice. A tutorial can be found here.

Best regards,
Jørgen