About the cause of reset

[takashina hiroki]

SDK: 15.3.0
Device: EYSHJNZWZ (nRF52832)

Is there a way to know the cause of the reset?

I connect the PC to the device and run it in debug mode.
However, nothing is written to the log when the reset occurs.
I want to know what caused the reset.

[Hung Bui]

Hi Takashina, 

It's possible to know the cause of the last reset. In your code you can check the register RESETREAS to know the reset reason. Please have a look at section 18.6 in the NRF52 product specification. 

However, it's most likely a reset when there is an assertion. Please follow this guide on how to set your device to debug mode and get the assertion reason printed out on the log: https://devzone.nordicsemi.com/question/60125/my-device-is-freezing-and-restarting/#60126

[takashina hiroki]

Thank you for answering.
I will try it.