Nm02 nm module call sequence diagram and code interpretation independent of bus protocol

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1 NM Module call sequence diagram

Let's take a look at this picture first , Yes NM Network management has an overall overall control , Have a clear understanding of the modules involved .
The general idea or steps are as follows ：

1. ComM Sleep request initiated by the module 【Nm_NetworkRelease(nmChannel Handle) :Nm_ReturnType】
2. Because there are other nodes in the network that have no intention of sleeping , therefore NM The coordinator said that everyone can't sleep , Wait for other brother buses 【Nm coordinator “swallow” Own node is “ready to sleep” but cluster to be coordinated not thus NM must not “release bus communication”】.
3. Other buses are going to sleep .【Nm_RemoteSleepIndication(channel) + Nm_RemoteSleepIndication(channel)】
4. Each bus protocol starts to enter the sleep shutdown process in sequence .【par synchronous NM shutdow n】
   1）[CAN]： To specific CAN Protocol network management sends sleep instructions 【CanNm_NetworkRelease(nmChann