https://devzone.nordicsemi.com/f/nordic-q-a/39174/i-do-not-want-use-advertising-random-delay-0ms-to-10msHello, I&#39;m using the nrf15822 chip and am using the ble_app_uart example from nrf5_sdk_12.2.0. I know softdevice will automatically generate random numbers through RNG and use advRandom from 0ms to 10ms. so I do not want to use the advRandom delayen-USTelligent Community 13Fri, 05 Oct 2018 01:18:39 GMThttps://devzone.nordicsemi.com/thread/151744?ContentTypeID=1Fri, 05 Oct 2018 01:18:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:996f1f25-ac0e-4768-b171-dc345bedcfbaUDG<p>Thank you for your answer.</p> <p>I know that advDelay is to prevent collision of different beacons. I want to synchronize these beacons. <br />I want to do some testing by controlling advDelay</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/151645?ContentTypeID=1Thu, 04 Oct 2018 11:35:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cc3a2588-daec-4f46-8436-6c19ba773e13tesc<p>Hi,</p> <p>This random delay, also known as advDelay, is &quot;a pseudo-random value with a range of 0 ms to 10 ms,&quot; as mandated by the Bluetooth Core Specification Version 5.0, Vol 6, Part B, Section 4.4.2.2.1. It is an integral part of the SoftDevice and cannot be configured. (In fact, by removing the delay the SoftDevice would no longer comply with the BLE specification and it would not pass qualification with the Bluetooth SIG.)</p> <p>May I ask why you want to remove the delay? There may be other solutions to the underlying issue.</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>