Howard Cai wrote:
Hi, List member:
I really need to set up the RTNET work so that I can use the the socket/UDP
interface in RTAI kernel real time task. (I do not care is hard real time
or soft real time at this moment, the first step is make my hard real
time task can do network IO with the outside - no real time host at this
time, since I only have one PC - I am doing some Qos experiment on the
processor level, not at the IO level at this moment)
My Goal is very simple at this stage:
** I can send/receive packets use UDP socket in RTAI kernel RTtask.
** No real time for now and on a single linux/rtai/rtnet machine.
** I guess in this case, regular linux network is fine as well, right?
!!!! Helps are greatly appreciated !!!!
I tried before, local RT interface is up running, but can not be in the
network.
RTPing outside did not work.
Check the real-time routing table on the sender side with "rtroute" to
see if the destination address has already been resolved. If not:
"rtroute solicit ..." will help.
Tonight I tried from the begin again.
Here is the detailed cmd procedure (I did)
Since I only have one RTAI/Rtnet station, I do "rtnet capture", while
the whole system seem become frozen.
Is RTAI running fine on your system (latency tests etc.)? Is your build
consistent? If in doubt, try rebuilding everything again and make sure
that you load the latest module binaries. If this doesn't help, please
try to find out which command in the rtnet script precisely causes the
lock-up (by adding some "echo I'm here" along the commands).
Thanks,
Jan
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