RAM retention of Softdevice RAM region

RE: RAM retention of Softdevice RAM region

Pascal Künzi — Wed, 22 May 2019 11:48:21 GMT

Hi Simon

Thanks for your quick reply. I already thought that the Softdevice initializes its own RAM region but I couldn't find any information on that.

I will just use the system ON mode instead then.

The current consumption is gonna be a little higher, but it will work.

Best regards,

Pascal

RE: RAM retention of Softdevice RAM region

Simonr — Wed, 22 May 2019 10:21:44 GMT

Hi Pascal

Retaining the SoftDevice RAM region is pointless, as the SoftDevice will reinitialize after system OFF regardless, as it is considered a RESET when awoken, which means NVIC/RTC/TIMER etc. will have to be reinitialized as well, even if you retain full RAM. So it will not be possible to accomplish what you want here.

This case has an example on how to implement RAM retention.

Best regards,

Simon

RE: RAM retention of Softdevice RAM region

Andy — Wed, 22 May 2019 09:04:36 GMT

What's wrong with setting the contents on wake up?