hi sunil,
In flexray , communication cycle is divided in mainly in to two parts static segment ( time triggered ) and dynamic segment( event triggered but can have time triggered portions).
By time triggered means , messages are always sent at a particular time every cycle. In flexray static segment
there can be some N no. of static slots every communication cycle( a static slot is the a subpart of static segment and each
slot is of same length in time). If a node "A" is sending some message "A" at a slot no. say 10 every communication cycle , then this message will be on bus a this time i.e slot no.10 only and no other node and send any message at this slot. In other words this slot no. 10 is assigned to message "A" transmitted my node "A".
Even triggered: This kind of messages are sent in Dynamic segment. This messages are not cyclic and are transmitted
only when some event occurs. For eg. node A requests for a diagnostic request to node B ( ECU ID) in a dynamic segment in a com cycle.node B will respond to this request in next com cycle in dynamic segment. So these kind of communication is not cyclic and are some event based.
if you have more questions please feel free to ask.... the details are vast in flexray technology.
Thanks
Redevil