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.

[khosla]

button.txtHi if i use the same code for both the transmitter and receiver, as u saw in the earlier paper i sent u, there would be confusion regarding whether node 1 is transmitting to node 2 or node 2 is transmitting back to 1. Since there are 2 transmit and 2 receive events taking place in one full cycle as per the figure. How to fix this? Probably one way could be that in the main function, i define which button ticks corresponding to which node. But how to define it in the code.

The second thing that i need to load the timestamp in the packet just before it is sent, where exactly the timestamp value loaded should be shown in my case ?

mainc.txt

[khosla]

more or less in this manner. i have modified my code lately.

but this seems feasible. will try to get the samples and see how it goes.then, i will get back.

Thanks!!!