nRF Connect Breakpoint -> FATAL ERROR: Platform external interrupt

[Ingfu]

Hi,

I'm developing with nRF Connect SDK v2.9.0 in VS Code. I followed the exercise l1_e1 from the intermediate course. When I debug with breakpoints and the first breakpoint is hit, everything is fine. When I continue execution, the application crashes and the TF-M terminal shows

FATAL ERROR: Platform external interrupt (IRQn): 0x00000041
Platform Exception:

I use the nrf54L15 DK with cpuapp/ns target. What's the problem?

[Charles Manning]

Is there any resolution to this issue?

I am seeing exactly the same issue on nRF54L15 development kit. with the same target at exactly the same place in the same tutorial.

The issue only shows up when debugging and continuing from a break point.

In case it matters, I am using the following versions:
*** Booting nRF Connect SDK v3.1.1-e2a97fe2578a ***
*** Using Zephyr OS v4.1.99-ff8f0c579eeb ***

[Hung Bui]

Hi Charles, 
There could be a chance that TF-M may need to handle an interrupt and was stopped because of the debugger causing the failure to continue. 
Have you tried to print log instead of break and step in the code ? 
The ticket is a year old, please create a new ticket for your question.