cheng.guanghui wrote:
On Friday 28 March 2008 07:10:56 pm Jan Kiszka wrote:
cheng.guanghui.ml wrote:
Hello:
        RTnet uses TDMA to avoid transmission collision. From the paper  (RTnet
– A Flexible Hard Real-Time Networking Framework) we could know that
every cycle could consist of sync slot, back sync slot, node1 slot, node2
slot, ..., node(n).
        I want to know how to schedule these slots assuming the these timeslots
are same without considering multiple slots per node.
        I don't find the explicit API to specify the slot priority in the rtnet
head files. But there are available 32 priorities in the head file.
Please have a look at RTNET_RTIOC_XMITPARAMS.
But how can the system guarantee the TDMA principle when the using the time out to control the synchronization communication and asynchronous communication? I mean basically the communication of two nodes is a local behavior but TDMA is a global behavior.

Sorry, I don't understand your question.

If your comment somehow relates to the priorities: They only apply locally, to the respective output queue. They have no impact on the global TDMA schedule.

Jan

Attachment: signature.asc
Description: OpenPGP digital signature

-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
_______________________________________________
RTnet-users mailing list
RTnet-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/rtnet-users

Reply via email to