Re: [Xenomai-help] HELP!!

[Jan Kiszka <jan.kiszka@domain.hid>]

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Roland Tollenaar wrote:
> Hi Jan,
> 
>> Maybe you missed the separated lists? rtnet-user-at-lists.sourceforge.net
> 
> I did. Sorry. I think you even mentioned it before. Sorry again.
> 
>>
>> But note in advance that RTnet for I/O coupling requires RTnet I/O
>> coupler that you cannot buy as there are no commercial ones. You would
>> have to embed it on your own. Maybe you then rather want to use the
>> Ethercat MasterLibrary with RTnet to attach Ethercat I/O nodes.
> 
> This looks like it may be a break. I had just found ethercat before this
> mail came in. By the look of things (very early) the hardware (Beckhoff)
> will give the IO and according to the vendor (who I have limited faith
> in by now) should make the time.
> 
> According to the same vendor (whom I have limited faith in) I can use
> the standard ethernet hardware in PC's for ethercat. Unlike Powerlink
> (B&R whom I am at war with and also have limited faith in :)) which
> requires a special powerlink card.
> 
> But my next problem will be to get xenomai to work with ethercat. You
> say I can try using the Ethercat Master library with RTnet. But why
> would I need RTnet? How will the layering look in this case? IOW what
> functionality will the ethernet master library provide and what will the
> RTnet provide?
> 
> Has anyone done this before?

[being in a hurry]
Check the links on www.rtnet.org to the related project at FMTC. They
even have mailing lists for detail questions.

The setup will be: Xenomai (basis) + RTnet (RT-NIC driver, core network
stack) + EML (userspace lib with Ethercat master code) + Your App
(linked against Xenomai and EML).

Jan




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