Can't disable softdevice

RE: Can't disable softdevice

Vidar Berg — Thu, 05 Dec 2024 07:55:10 GMT

Hello,

Yes, it is fine to remove this. This part of the example was made to demonstrate how you can skip boot validation of the app after waking up from System OFF sleep. That said, the softdevice does not affect the sleep current simply by being enabled, so you can achieve the same low power consumption by stopping the advertiser or disconnecting from any active connections.

RE: Can't disable softdevice

julian24 — Wed, 04 Dec 2024 18:54:32 GMT

Hello,

Oh, you're right, that was quite a silly mistake by me, I didn't notice due to brain burnout haha.

That observer is from the example buttonless DFU, would it be OK if i just deleted that line? So that my DK doesn't go into System OFF mode. Or how can you wake it up from deep sleep?

I was trying to disable softdevice because it was no longer necessary in that part of the code. I also thought it raised power consumption a little bit.

Thanks for your help, Vidar.

RE: Can't disable softdevice

Vidar Berg — Wed, 04 Dec 2024 12:42:10 GMT

Hello,

Your buttonless_dfu_sdh_state_observer() function is configured to enter System OFF mode (deep sleep) when it receives the NRF_SDH_EVT_STATE_DISABLED event. What is the purpose of disabling the Softdevice in your case?

Best regards,

Vidar