https://devzone.nordicsemi.com/f/nordic-q-a/4466/nrf51-gazell-protocol-timingHello, once synchronized, what is the minimum time for exchanging acknowledged packet. according to datasheet : Timeslot periods The Gazell Link Layer supports the following minimum timeslot periods. 600us timeslot period, nRF51 Gazellen-USTelligent Community 13Mon, 17 Nov 2014 10:37:45 GMThttps://devzone.nordicsemi.com/thread/15849?ContentTypeID=1Mon, 17 Nov 2014 10:37:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e6eef59d-1763-4c33-9df2-c2e9822b2a33Asbj&#248;rn<p>Minimum 600 us for sending a packet and getting the ACK for it. But it&#39;s not possible to update the content of the ACK between you receive the original package and before you send the ACK. So if you need to respond to something in a package received, this won&#39;t get back to the device until the next ACK.</p> <p>The duration of the timeslots needs to be longer than it takes to send a package and receive the ACK. The duration depends on the on-air data rate used and packet length.</p> <p><a href="http://developer.nordicsemi.com/nRF51_SDK/doc/7.0.1/s110/html/a00112.html">developer.nordicsemi.com/.../a00112.html</a></p><div style="clear:both;"></div>