Re: Re: Arcnet drivers

I guess I should have referenced what I have already found concerning 
arcnet and real-time control. Doing a search on RTnet's mail list (a 
feature I would love for RTAI!), I came across this exchange:

http://www.mail-archive.com/[email protected]/msg00616.html

So someone before me has asked if RTAI + arcnet + RTnet is possible. 
Before blazing off into the trail of porting modules into RTnet, I 
didn't think it would be ridiculous to poll the communities of RTAI (and 
now Orocos) to see if this had already been accomplished - in today's 
world there is always someone who has done or is doing exactly what you 
are attempting. I have tried to contact Dario Dallefrate (original 
poster on RTnet about this topic) but have not recieved a response in 
over 2 weeks.

J.D.



NZG wrote:
> Let me say up front here that I'm a bit out of my realm.
>
> I am not making any claims of being an expert in the state of this field and 
> am just talking because I'm interested in reseaching some distributed real 
> time control stuff over ethernet myself.
> I don't want to offend anyone or start a flame war.
>
> That said,
>
>   
>> Well, "typically" is a bit of an overstatement :-) Comedi provides a lot of
>> drivers for AD/DA cards, but not for communication buses...
>>     
> What about RTNet?
> Admittadly I don't know much about Arcnet other than the general idea,
> but who does? It doesn't seem to have the same open community base.
>
> If all you need is deterministic ethernet integrated with Orocos, it seems to 
> me that the path of least resistance would be Orocos+RTNet+RTAI, which has 
> already been done in an open environment. 
>
> thx,
> NZG
>
>
>
> On Monday 30 January 2006 2:28 pm, Herman Bruyninckx wrote:
>   
>> On Mon, 30 Jan 2006, NZG wrote:
>>     
>>> Sure, but Comedi typically fills in that hardware hot spot right?
>>>       
>> Well, "typically" is a bit of an overstatement :-) Comedi provides a lot of
>> drivers for AD/DA cards, but not for communication buses...
>>
>>     
>>> On Monday 30 January 2006 12:53 pm, J.D. Yamokoski wrote:
>>>       
>>>> Thanks for the clarification. That was my understanding about Orocos
>>>> being hardware independent. I know others in the past have successfully
>>>> integrated RTAI and arcnet communication. I guess I was just
>>>> broadcasting to see if there was anyone paying attention to these lists
>>>> who has experience with this.
>>>>
>>>> Herman Bruyninckx wrote:
>>>>         
>>>>> On Mon, 30 Jan 2006, NZG wrote:
>>>>>           
>>>>>>> While I am spamming the mailing list, I thought I would start another
>>>>>>> thread about questions I have on arcnet card drivers. The problem is
>>>>>>> I am just about clueless when it comes to Linux and device drivers to
>>>>>>> begin with (I am a native windows programmer).
>>>>>>>               
>>>>>> I don't know much about Arcnet, but IMHO Orocos seems to be a more
>>>>>> popular choice for open robot control. (If someone disagree's here
>>>>>> please set me straight, I'm just getting into this field myself)
>>>>>>             
>>>>> Arcnet is about _hardware drivers_ for a particular type of
>>>>> communication channel; orocos is a set of libraries to control robots
>>>>> and machine tools, _independent_ of the hardware you use. These driver
>>>>> issues are what we call "hot spots" in the Orocos framework: _you_ have
>>>>> to fill them in for your particular hardware, because Orocos wants to
>>>>> remain hardware neutral.
>>>>>           
>> Herman
>>
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>
>