time synchronization across different nodes in a mesh network, single hop as well as multi hop.

[khosla]

I am working on time synchronizations between different nodes in a mesh network. I have earlier worked on the radio and the ppi examples given. I wish to generate time stamps at each send and receive events between two different nodes for which i am using the nRF radio along with two crystal oscillators, 16 M XOSC as well as 32.768 KHz XOSC with quartz crystal. Could you let me know that if i am using the ppi with the radio functionality, how do i define the two nodes in my code between which i want to send packets. then can i extend this case for n nodes too.

[Hung Bui]

Please attach your code as a text file. Please have look again at your comment above, how would you expect me to read what you pasted ?

You still haven't described clearly enough what you are planing to do and what the difficulties you have. Please try to follow the tutorial and get back if you have issues.

[khosla]

main.c

This is the code i would be using for my work. I looked at the link you gave me. But it would be good if u could see mine and lemme know whether its appropriate enough. As far as the main problem is concerned, my task is synchronizing all events in a mesh network. I need to timestamp the events using hardware timers. Then once i have the time values, i can verify them by sniffing packets on air and seeing results on the Logic Analyzer. Then getting the data out from the board to the pc. Using certain algorithms to estimate the drift and the offset variations with regard to the time events recorded. Hope this will clarify your queries.