Thanks for your replay!
I use the 802.15.4 Stack with JN5168，first endDevice active scan the coordinator's channel, then I want send data to coordinator without association process!
I have another device with JN5148, it can send data without association to my coordinator device, so I want to know how to do this?
Hi Liang Guo,
Unfortunately, the JN5148 is no longer manufacture and is not recommended for new design. It is not supported.
If you are working on JN5168 the ToF is not supported as well.