https://devzone.nordicsemi.com/f/nordic-q-a/8452/using-rng-with-softdevice-disabledI have my devices programmed in a way, that they decide whether to enable SD and transmit via BLE or to keep it disabled and start operating using Gazell. In this case I need SD to be disabled and use RNG. Can I do it? Thanks in advance.en-USTelligent Community 13Thu, 30 Jul 2015 14:08:42 GMThttps://devzone.nordicsemi.com/thread/30774?ContentTypeID=1Thu, 30 Jul 2015 14:08:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3e6c4b39-aafd-427d-8ec1-729da0656f16Susheel Nuguru<p>Yes, when you disable stack, you cannot use its API anymore. Few exceptions, the ones defined in nrf_sdm.h and everything that is below SOC_SVC_BASE_NOT_AVAILABLE enum in nrf_soc.h. The exception in these is that they are used to enable/disable softdevice and some flash operations.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/30773?ContentTypeID=1Thu, 30 Jul 2015 13:52:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9b0bdd1b-e1de-44cb-af89-c035ff953bf2ImQ009<p>I see, so I have to access the registers directly? Thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/30772?ContentTypeID=1Thu, 30 Jul 2015 13:52:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:786d2b82-be4a-4058-bdd4-d2cc2dadf104Susheel Nuguru<p>YES :) Softdevice disable will mark all peripherals as unprotected, you can just consider that it doesn&#39;t exist except that it takes space in flash</p><div style="clear:both;"></div>