CanOpen communication with Qt on udoo Neo

Discussion in 'UDOO NEO' started by Sassus-Bourda, Mar 17, 2016.

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  1. graugans

    graugans Administrator Staff Member

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    You have a recommendation for a 3.3V Type. I found one from TI and another one from Maxim

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    graugans, Apr 4, 2016
    #21
  2. jas-mx

    jas-mx Active Member

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    Tested the SN65HVD230 , see the other thread to save repeating myself.
     
    jas-mx, Apr 4, 2016
    #22
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  3. Sassus-Bourda

    Sassus-Bourda Member

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    Hello guys,

    I'm stuck with the example of the qtserialbus example. When i try to compile the program directcly on my udoo quad board but the console display : Unknown module in QT:serialbus..

    Any advices?
     
    Sassus-Bourda, Apr 13, 2016
    #23
  4. modjo

    modjo Active Member

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    Probably you don't have the qtserialbus build, what distro you use ?
     
    modjo, Apr 14, 2016
    #24
  5. Sassus-Bourda

    Sassus-Bourda Member

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    Problem solved i didn't used the good Qt version.

    Now I have my can example working! Next step is to set up the can pinout with the device tree editor but i don't understand how I neded to plug the gnd..

    Another things you use a can tranceiver it's an obligation to test? because I just have an usb "bridge" for can.

    Thanks for your follow up
     
    Sassus-Bourda, Apr 14, 2016
    #25
  6. graugans

    graugans Administrator Staff Member

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    You probably have a peak or ixxat USB bridge they have CAN high/low signals so you'll need the transceiver but take a 3.3v type!!!

    When connecting two can TTL boards there is an application note from Siemens how to do this.

    You'll need to connect GND of both ends because CAN high/low is based on GND


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    graugans, Apr 14, 2016
    #26
  7. Sassus-Bourda

    Sassus-Bourda Member

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    Hi,

    How can I add a can bakend in the Qt serial bus example?

    I use an usb bridge with the FTDI drivers so the library install is not detect by the program.

    Thanks in advance
     
    Sassus-Bourda, Apr 25, 2016
    #27
  8. modjo

    modjo Active Member

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    Hi, qtserialbus support only 3 backend for the moment. I don't know what CAN adaptator you use but check my previous link. In my case, i use peak can on Windows OS and socketCan on Neo. You can find more information in Qt doc ...
     
    modjo, Apr 26, 2016
    #28
  9. Sassus-Bourda

    Sassus-Bourda Member

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    Hi, thanks for your answer.

    Yes I see in Qt doc that only 3 backends are supported but I thought that with the fonction plugins() in QCanBus class I was able to add a new backend...
     
    Sassus-Bourda, Apr 26, 2016
    #29
  10. Sassus-Bourda

    Sassus-Bourda Member

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    Hi,

    How can I install the 5.6 version of Qt in the udubuntu OS?

    Thanks
     
    Sassus-Bourda, May 27, 2016
    #30
  11. jas-mx

    jas-mx Active Member

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    If you asking for the NEO then you need to build (cross compile) it yourself. I don't think there are instructions specifically for the Neo, the nearest is the for the Quad/Dual.
     
    jas-mx, May 27, 2016
    #31
  12. graugans

    graugans Administrator Staff Member

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    What are you planning to do? I can provide a qt5 Yocto image + toolchain for cross devel

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    graugans, May 27, 2016
    #32
  13. Sassus-Bourda

    Sassus-Bourda Member

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    It could be awesome !

    I plan to test the can bus example provide by Qt v5.6 on my udoo board to communicate with my pc.
     
    Sassus-Bourda, May 27, 2016
    #33
  14. Sassus-Bourda

    Sassus-Bourda Member

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    So can you provide me what you says please Graugans it could be very useful for me.

    Thanks in advance
     
    Sassus-Bourda, May 31, 2016
    #34
  15. graugans

    graugans Administrator Staff Member

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    graugans, May 31, 2016
    #35
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  16. Sassus-Bourda

    Sassus-Bourda Member

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    Thanks a lot !

    A question about the image on window how can I put the image on an SD Card? Usualy I used the program win32DiskManager but it with .img files.

    Thanks in advance
     
    Sassus-Bourda, Jun 3, 2016
    #36
  17. graugans

    graugans Administrator Staff Member

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    You can use it anyway

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    graugans, Jun 3, 2016
    #37
  18. Sassus-Bourda

    Sassus-Bourda Member

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    Hi,

    I have those errors when I try to build my program :

    General message :
    Cannot read /opt/poky/2.1/sysroots/cortexa9hf-neon-poky-linux-gnueabi/usr/lib/qt5/mkspecs/oe-device-extra.pri: No such file or directory

    Compiler output :
    erreur : [.obj/MyClassName.o] Error 127

    Can you help me please?

    Pierre
     
    Sassus-Bourda, Jun 21, 2016
    #38
  19. graugans

    graugans Administrator Staff Member

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    I had a flu the last few days I try to check. The oe-device-extra.pri shouldn't be needed

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    graugans, Jun 21, 2016
    #39
  20. Sassus-Bourda

    Sassus-Bourda Member

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    OK I hope you good now !

    Let me know if you resolve this error I can't find anything yet to resolve it by myself.

    Thanks in advance,

    Pierre
     
    Sassus-Bourda, Jun 21, 2016
    #40
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