NRF52840 Fatal Error doesn't stop debugger

[Miguel Ferreira]

Hi,

I`m working on a custom board. I have been playing around with it for a couple of months, but just recently stumble upon a strange behavior. This is a custom device where the NRF52840 communicates wit an NRF9160  - its using the SLM application. While debugging the NRF52840 I noticed that the debugger keeps running without stopping, however if I pause the debug session it will point me to a Fatal Error (see image attached).  What could be the meaning of this ? If eventually the system reset during the debug session it would throw a Fatal Error and could be the reason why it doesn't trigger the error automatically ? Also, as you can see from the image, the call stack doesn't help me much understating the origin of the error.

Thanks!

[Miguel Ferreira]

Hi,

I figure out the issue, it was the UART I was using to communicate with the NRF91. I was using the wrong accessing the wrong buffer array, however it would just trigger the error later (dont know why) which was leading me into the wrong direction. Will close the ticket now.