https://devzone.nordicsemi.com/f/nordic-q-a/54814/is-fds-intialized-by-ble-stackHello, I wanted to know how to syncrhonize the FDS_INIT event coming from the FDS. Indeed, it seems FDS is intialized by BLE stack but i want to use it before BLE starts so that&#39;s why i have called &quot;fds_init&quot; but then, i can see two FDS_INIT event comingen-USTelligent Community 13Thu, 28 Nov 2019 16:53:28 GMThttps://devzone.nordicsemi.com/thread/222660?ContentTypeID=1Thu, 28 Nov 2019 16:53:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1e253ce4-6b03-4edb-8c8b-425ea5c26991Aurele<p>yes, it is exactly what i&#39;m doing, i give a semaphore when i receive this event so that the initialization can continue. But i noticed some conflicts (hardfault) if i wanted to write in the FDS&nbsp;at the same time this FDS_INIT is triggered ...</p> <p>But i will&nbsp;add a delay to be sure</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/222321?ContentTypeID=1Wed, 27 Nov 2019 11:28:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5842a003-ba80-4980-ad6c-4d1fc5c085a9Susheel Nuguru<p>I think the easiest way, for now, is to safely ignore the second FDS_INIT event without any side-affects. You app can remember in a variable that FDS is properly initialized the first time and just ignore the second event after that.</p><div style="clear:both;"></div>