Can LinuxCNC run on ARM platform(BBB)
23 Sep 2019 00:38 #145899
by shameless
Can LinuxCNC run on ARM platform(BBB) was created by shameless
Hello,everyone!
First,I want to make sure that if LinuxCNC can run on ARM platform.
I have successfully transplanted Linux kernel (version:3.8.13) and xenomai (version:2.6.3) ,and tested the performance of xenomai(latency).It's really good.
But the latency-test in LinuxCNC is very terrible and shows" Using POSIX non-realtime". When installing linuxcnc, configure in the debian directory will also show "your kernel xenomai is not known". what‘s wrong？
First,I want to make sure that if LinuxCNC can run on ARM platform.
I have successfully transplanted Linux kernel (version:3.8.13) and xenomai (version:2.6.3) ,and tested the performance of xenomai(latency).It's really good.
But the latency-test in LinuxCNC is very terrible and shows" Using POSIX non-realtime". When installing linuxcnc, configure in the debian directory will also show "your kernel xenomai is not known". what‘s wrong？
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23 Sep 2019 06:52 #145919
by pl7i92
Replied by pl7i92 on topic Can LinuxCNC run on ARM platform(BBB)
the interpreter only reacts on RT access so standard kernals wont work
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23 Sep 2019 06:56 #145921
by tommylight
Replied by tommylight on topic Can LinuxCNC run on ARM platform(BBB)
>For BBB you should use Machinekit, there should be ready made images for that probably.
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24 Sep 2019 07:24 #146045
by shameless
Replied by shameless on topic Can LinuxCNC run on ARM platform(BBB)
I used the .img file,and burned it to SD card.But BBB won't start successfully.Is there anything that I should do.
By the way,does machinekit have the documention similar to LinuxCNC?
By the way,does machinekit have the documention similar to LinuxCNC?
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25 Sep 2019 23:42 #146205
by andypugh
Note: I haven't done this for a long time.
But I think that LinuxCNC should work with Xenomai. It isn't the Debian configuration stage, but the LinuxCNC configuration stage.
./configure --with-realtime=path-to-xemonai
There are many instances of the word "xenomai" in the configure script: github.com/LinuxCNC/linuxcnc/blob/master/src/configure.ac
Replied by andypugh on topic Can LinuxCNC run on ARM platform(BBB)
I have successfully transplanted Linux kernel (version:3.8.13) and xenomai (version:2.6.3) ,and tested the performance of xenomai(latency).It's really good.
But the latency-test in LinuxCNC is very terrible and shows" Using POSIX non-realtime". When installing linuxcnc, configure in the debian directory will also show "your kernel xenomai is not known". what‘s wrong？
Note: I haven't done this for a long time.
But I think that LinuxCNC should work with Xenomai. It isn't the Debian configuration stage, but the LinuxCNC configuration stage.
./configure --with-realtime=path-to-xemonai
There are many instances of the word "xenomai" in the configure script: github.com/LinuxCNC/linuxcnc/blob/master/src/configure.ac
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27 Sep 2019 02:04 #146312
by shameless
Replied by shameless on topic Can LinuxCNC run on ARM platform(BBB)
Yes,I hope that LinuxCNC work with Xenomai.You think that LinuxCNC embed with xenomai can run on BBB,don't you?
When I run on X86 platform,I configure in Debian directory(./configure uspace),it will show "successfully configured for 'uspace'-'uspace+xenomai".But it won't show "xenomai" on ARM platform.
In your opinion,I should configure in src directory directly.And "path-to-xenomai" is that the path where I install the xenomai.Which I understand should be okey？
Anyway，thank you！
When I run on X86 platform,I configure in Debian directory(./configure uspace),it will show "successfully configured for 'uspace'-'uspace+xenomai".But it won't show "xenomai" on ARM platform.
In your opinion,I should configure in src directory directly.And "path-to-xenomai" is that the path where I install the xenomai.Which I understand should be okey？
Anyway，thank you！
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27 Sep 2019 14:50 #146400
by andypugh
Replied by andypugh on topic Can LinuxCNC run on ARM platform(BBB)
I don't really know anything about the LinuxCNC / xenomai / Beaglebone combination.
But I think by searching the configure file foe the word "xenomai" you should be able to work out what the script is looking for, and where it is looking.
One hint I will offer, is to check through the generated file (config.h ? I think? (I am not at a LinuxCNC machine at the moment) and check that the kernel version string is properly " delimited.
But I think by searching the configure file foe the word "xenomai" you should be able to work out what the script is looking for, and where it is looking.
One hint I will offer, is to check through the generated file (config.h ? I think? (I am not at a LinuxCNC machine at the moment) and check that the kernel version string is properly " delimited.
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