why the reset flags are the same?

[Manlio]

when I enter the system off mode then used a GPIO to wake up the IC, the "RESETREAS" register show "Reset due to wake-up from OFF mode when wakeup is triggered from the DETECT signal from GPIO".

But when I cut off the power of IC, then connect the Power, the "RESETREAS" register also show "Reset due to wake-up from OFF mode when wakeup is triggered from the DETECT signal from GPIO".

why?

I need to differentiate the two reset. How to do?

I used the "ble_app_proximity" of SDK.

Thanks!

[Ole Morten]

Unfortunately, there is an issue with the RESETREAS on revision CA/C0 of the chip, which is documented in the PAN. The suggested workaround is to write to the GPREGRET register before entering system off, and then check this value to know whether it was a power-on-reset or a wake from off.