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hcvoort
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PostPosted: Fri Oct 28, 2016 11:58 am |
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Joined: Fri Jun 05, 2015 8:17 am Posts: 15
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Dear Edwin,
Is it possible to leverage the rela time capabilities of Xenomai for codesys on a beagle bone?
BR,
Carsten
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Edwin Schwellinger
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PostPosted: Fri Oct 28, 2016 8:02 pm |
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Joined: Mon Sep 05, 2005 9:42 am Posts: 3570
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Hi, why not using rt_preemt patched kernel instead of using xenomai? BR Edwin
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hcvoort
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PostPosted: Fri Oct 28, 2016 8:46 pm |
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Joined: Fri Jun 05, 2015 8:17 am Posts: 15
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Hi Edwin,
Thanks for the suggestion. To my knowledge though Xenomai is more hard RT than rt_preempt, isn't it? Could you therefor answer on my previous question if Xenomai can be used in user and or kernel mode?
BR,
Carsten
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Edwin Schwellinger
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PostPosted: Sat Oct 29, 2016 7:00 am |
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Joined: Mon Sep 05, 2005 9:42 am Posts: 3570
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Hi, yes it is right, but from my experiance there are not many applications out there which really not could deal with rt_preemt patched kernel and really need Xenomai. For this runtime release from store it is not possible to use with Xenomai.
BR Edwin
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hcvoort
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PostPosted: Mon Oct 31, 2016 2:53 pm |
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Joined: Fri Jun 05, 2015 8:17 am Posts: 15
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Hi Edwin,
Thanks for your quick response. Will the runtime be suitable for use with Xenomai in future releases?
BR,
Carsten
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Edwin Schwellinger
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PostPosted: Mon Oct 31, 2016 11:29 pm |
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Joined: Mon Sep 05, 2005 9:42 am Posts: 3570
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Hello, At the moment not planned. BR Edwin
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hcvoort
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PostPosted: Mon Apr 03, 2017 7:51 pm |
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Joined: Fri Jun 05, 2015 8:17 am Posts: 15
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Hi Edwin,
Is it possible to create a xenomai 3 capable codesys in one of the future releases? With the current rt_preempt I get around 70-80 us jitter under load. I am using the setup with a BBB industrial with a task cycle time of 1ms. The current jitter results in 'unpleasant' behaviour in our haptic setup.
BR,
Carsten Voort
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Edwin Schwellinger
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PostPosted: Tue Apr 04, 2017 4:27 am |
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Joined: Mon Sep 05, 2005 9:42 am Posts: 3570
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Hi Carsten, still not planned at the moment.
BR Edwin
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