Random Hard Fault during radio interrupt

RE: Random Hard Fault during radio interrupt

amesser — Thu, 25 Apr 2019 05:57:43 GMT

Thank you very much! I should have read the manuals better. Thanks for the hint, i'll change that then.

I think this can closed then. I'm still struggling with the UART, the device is found by my notebook, but i can't discover services and connect. Also I don't get any SD_IRQ on nrf side. But this is another issue i have to sort out a bit more before asking questions.

RE: Random Hard Fault during radio interrupt

Sigurd — Wed, 24 Apr 2019 21:43:52 GMT

Hi,

[quote user="amesser"]When a breakpoint hits in the debugger and i continue[/quote]

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 BLE events. This will cause the softdevice to assert, and put you in the error handler.

(PS: You should set this to 500ppm (NRF_CLOCK_LF_ACCURACY_500_PPM) when using the LF RC)

RE: Random Hard Fault during radio interrupt

amesser — Wed, 24 Apr 2019 19:30:37 GMT

I have reviewed the ble_uart example again and changed several things which were different. Now, the firmware is stable until a breakpoint hits:

When a breakpoint hits in the debugger and i continue, after some seconds I end up in nrf_fault handler with id=0x1, and various pc values: pc=0x12682 or pc=0x11c22.

RE: Random Hard Fault during radio interrupt

amesser — Wed, 17 Apr 2019 18:39:29 GMT

Hmm, image scaled to unreadability, another try:

/resized-image/__size/1040x0/__key/communityserver-discussions-components-files/4/hard_2D00_fault.png