Re: [Xenomai-help] hello xenomai world?

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

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roland Tollenaar wrote:
> Hi Jan,
> 
>> See, you seem to manage choosing the complicated, non-standard way of
>> doing things first. Now try to solve your issues one by one, not in
>> arbitrary order.
> :)  Its not quite as arbitrary as it may seem.
> 
>> 1. Make your kernel boot fine, including all desired modules, without
>> having it issue any kind of error messages. Bootlogs are under /var/log,
>> just look into those files.
> All sorted out! Remember that the kernel was fine.  I could only
> realized that something was missing when I tried rtcanconfig and I
> could not find the /rtcan0 and /rtcan1. For someone entirely new to
> both xenomai and rt-can its not surprising this take place. I stuck as
> closely as possible to the default suggestion in the kernel config.
> AFAIK the virtual device was not selected.
> 

Feel free to write down some "first steps with CAN under Xenomai" once
you are through (=>wiki)! The virtual devices are not explicitly
documented yet. But making them default on the other hand is overkill,
because they are special to most users (with real hardware).

> 
>> 2. Check where you have installed the user space part. Default is
>> /usr/xenomai, and for a first run it's probably wise to keep this.
> Sorted! Absolutely, this is where I have had it installed all the
> time. It seems to be in perfect shape.
> 
>> 3. Check if you can build the examples repository. If you installed the
>> user space part to default location, it must work with only providing
>> the "make KSRC=<path-to-kernel-src>" as described in the Makefile.
>> Inside examples/native, you even just need to type "make".
> Well this is not quite the case. I install to the correct places
> actually I have from the start used the directories exactly as they
> are suggested int he documentation. I have jsut reinstalled and the
> make procedure seems fine. My install directory works and the programs
> therein are now all functioning. Even rtcongi rtcansend and rtcanrecv.
> Running make in /examples/native says
> 
> Invoke make like this: make /path to xeno-config/. Which is why I was
> going on about the config variables. I wil now try and find
> xeno-config if it exists and see how that works. On the other hand I
> don;t doubt that the application will compile. I need to find out what
> libraries to include for this particular one for the next steps. See
> later.

Ack, my bad. The example makefiles do not assume /usr/xenomai (or,
alternatively, /usr/xenomai/bin/xeno-config) as default for XENO. Will fix.

Meanwhile try "make XENO=/usr/xenomai".

> 
> The point being that 1, 2 and 3 have been completed in that order. To
> lay out the structure of what is planned next:
> 
> 4-Get a task ala trivial-task compiled into a qt C++ project. (for
> which I need to know what libraries are required)
> 
> 5-Write this task to read CAN messages ever 1 ms and write them to console.
> 
> 6-Get multiple tasks into the project running at different times
> 
> I do understand your consternation, I have been very verbose on this
> list today.

Your feedback is appreciated and helps improving things. Just a certain
part of your verbosity might have been avoidable by digging a bit deeper
and checking twice, no? :)

Jan


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