Difference of Connect/Detach debugger

[JIYEON]

Hi,

When a board is connected to debugger, It works well for 2 hours.

But when it is detached debugger, It looks like stuck to POWER_CLOCK_IRQn after 4~6 min after power on.

There could be any difference when attached/detached debugger?

Since it is same SW and board, I am so confused:(

[JONATHAN LL]

Hi,

When a board is connected to debugger, It works well for 2 hours.

 Does it stop working after 2 hours when connected?


Is it a custom board?


How have you connected the debugger?


What powers the board? (when no debugger is connected)


Regards,
Jonathan

[JIYEON]

It still works after 2 hours.

It is custom board. Jlink debugger was used. And Board was power by USB when both connected and detached debugger. 

Fortunately problem is fixed by below.

https://devzone.nordicsemi.com/f/nordic-q-a/75262/restart-system-from-qdec_irqhandler

But I am still curious Is there could be difference by debugger connection?

[JONATHAN LL]

JIYEON said:

But I am still curious Is there could be difference by debugger connection?

 I am not aware of any issues other then if you do not connect it correctly regardless of debugger type. 


In debug mode all clocks and regulator are enabled. So that that can explain why it works with the debugger connected and not when you remove the debugger. 


Regards,
Jonathan