Dnia Czwartek, 7 Marca 2013 16:47 Jan Kiszka <jan.kis...@siemens.com> napisał(a) > On 2013-03-07 15:44, Mariusz Janiak wrote: > > Dear all, > > > > I would like to implement the RTnet protocol on a small a microcontroler. > > As far, I have working a TDMA discipline which is able to synchronize with > > a master (PC with Xenomai). Also, I have working non rt UDP stack > > implemented on top of the FreeRTOS. In the next step I plan to send a UDP > > frames through a RTmac. > > Sounds cool. :) > > > At this point I have small uncertainty, how whole ethernet frame containing > > a RT UDP looks like? I assume that sending a standard UDP frame in a node > > slot is not a point. Is the > > following frame correct? > > > > ---------------------------------------------------------------------------------------------------------- > > | | | | > > | | > > | Ethernet header | RTmac header | IP header | UDP header | DATA | > > | | | | > > | | > > ---------------------------------------------------------------------------------------------------------- > > > > Ethertype = 0x9021 > > > > If this is a RT UDP frame, how looks like RTmac header: > > - Type = ???, > > - Version = 0x02, > > - Flags = 0x01 ??? > > > > Could you please shed light on this issue? > > RT packets do not come with an RTmac header. That is only used to > encapsulate and tunnel non-RT packets (and for RTmac control packets, of > course). > > You can find more information in rtnet/Documentation/*.spec.
Hi Jan, I have read these documents many times, maybe I have missed something important. Ok, I formulate my question in the different way: Is a RT UDP/IP frame different then a standard UDP/IP frame? Mariusz ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
