case about nRF54L15 systemoff & gpio

[peter.min]

Hi,

When the nRF54L15 enters deep sleep (System OFF) mode by calling sys_poweroff, can the GPIO pins remain at a high level?

Kind regards,

Peter.Min

[Håkon Alseth]

Hi,

 

All nRF5-series devices retains the GPIO state while in sleep.

Please note that at the time of a wakeup condition occurs, this will cause a system reset.

This means that there is a small gap between the device being in reset until it starts to execute code again, where the pins are undefined.

 

It is highly recommended that you have external pull resistors for such a scenario.

 

Kind regards,

Håkon