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Missing or unknown device (-24)

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by jsmith2307, Jan 29, 2012.

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  1. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    Do you have all of your jumpers installed? My AMC 1.5 has one up in the right corner. See picture. And in the lower right it looks like it may need one?
    there is a jumper by the switches too that I can't see.

    untitled.jpg

    Sure, if you want to send it to me and have it programmed, just IM me for my address buddy! :cheers:

    yobuddy
    yobuddy, Feb 11, 2012
    #21
  2. jsmith2307

    jsmith2307 Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Joyrider, Motion platform
    Jumpers? I have only three on my board, should I have four?
    jsmith2307, Feb 11, 2012
    #22
  3. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    Wire jumpers Highlighted in RED.

    Side by Side.jpg

    yobuddy
    yobuddy, Feb 11, 2012
    #23
  4. jsmith2307

    jsmith2307 Member

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    My Motion Simulator:
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    Thanks, maybe this will be my ticket! I checked my board there is not a place to put a jumper at that spot. My board v1.5 was updated 13-8-2008, is there another?
    jsmith2307
    jsmith2307, Feb 11, 2012
    #24
  5. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    The closer I look at it; you may just be using a newer layout than mine.
    Feel free to send the chip for programming if you’re stuck buddy!

    yobuddy
    yobuddy, Feb 11, 2012
    #25
  6. jsmith2307

    jsmith2307 Member

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    My Motion Simulator:
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    Yeah, I started freaking out, but I saw a v1.5b with a jumper, in that area. The footprint is a little different. Yes, I will send the chip tomorrow or Monday. :clap:
    jsmith2307
    jsmith2307, Feb 11, 2012
    #26
  7. jsmith2307

    jsmith2307 Member

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    My Motion Simulator:
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    Greetings,
    I am still trying to figure out this board... aside from getting a bad batch of atmegas, I think my zeners are positioned correctly (see pic). My crystal appears smaller than the ones used in your boards, could this be it? I'm getting my atmega checked out by Yobuddy, I should hear something in 3 or 4 days.:( DSC04701.JPG

    Attached Files:

    jsmith2307, Feb 13, 2012
    #27
  8. kbssa

    kbssa New Member

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    I am having the sema problem as you, I tryed wtih 24mhz crystal but not success missing or unknown device, so I chenged to 18432mhz crystal and nothig again.

    I have tested all the board conections and it is allright, I dont know what could be.

    I will try to with another chip, i am using a usb converter, if anyone know how to make a serial cable let me know so I will make one to see if the problem is the cable.
    kbssa, Feb 14, 2012
    #28
  9. tronicgr

    tronicgr

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    Well... seeing this thread confirm's my thoughts for kits with pre-programmed microcontroller.

    Actually yesterday I finalized my bootloader code that allows simple users to upgrade the firmware without the hassle of using any programmer circuit or ponyprog anymore. It works great over USB-serial and has a simple GUI on the pc side!!


    Thanos


    PS. (lol... posted in wrong thread before... too early in the morning)
    tronicgr, Feb 14, 2012
    #29
  10. jsmith2307

    jsmith2307 Member

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    Greetings,
    Another quick question. I have a combination of metal film type and carbon resistors, on the AVR could that be the problem? It is reaching, a little, I know. Yobuddy, the crystal thing did not work, Thanks for trying, back to the drawing board. :?
    jsmith2307
    jsmith2307, Feb 15, 2012
    #30
  11. rafael_design

    rafael_design Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    This is the error-free cable style :D

    IMG_3516.JPG
    IMG_3517.JPG
    db9.jpg
    IMG_3515.JPG



    There are two important things to notice:
    1 - Make this cable long enough. I made mine too short and regret about it.
    2 - Make a solder job better than mine lol

    regards,
    rafael.
    rafael_design, Feb 15, 2012
    #31
  12. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    Resistors are so cheep, why not try it?
    Or the chip will be there soon man!
    yobuddy
    yobuddy, Feb 15, 2012
    #32
  13. jsmith2307

    jsmith2307 Member

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    My Motion Simulator:
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    Man, I think you are right! I'll have the whole thing rebuilt. But it bugs me I can't chase this thing down. The chip should be here by Friday. :)
    jsmith2307
    jsmith2307, Feb 15, 2012
    #33
  14. kbssa

    kbssa New Member

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    kbssa, Feb 15, 2012
    #34
  15. jsmith2307

    jsmith2307 Member

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    Hi There,
    Check your zener orientation one looks off! :yippiee:
    jsmith2307
    jsmith2307, Feb 15, 2012
    #35
  16. kbssa

    kbssa New Member

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    jsmith2307 found an error on my board !

    The orientation of zener is wrong

    Thanks man for help !
    kbssa, Feb 15, 2012
    #36
  17. jsmith2307

    jsmith2307 Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Joyrider, Motion platform
    Anything I can do. Good Luck!! :cheers:
    jsmith2307
    jsmith2307, Feb 15, 2012
    #37
  18. kbssa

    kbssa New Member

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    I don't believe that !!!

    tI was only the zener man, now it is working !!

    I hope you can solve your problem too

    Thanks a lot jsmith2307
    kbssa, Feb 15, 2012
    #38
  19. jsmith2307

    jsmith2307 Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, Joyrider, Motion platform
    Ongoing delemma, yesterday, I tried replacing all of the carbon resistors to metal film resistors, 13 in all.
    Nothing changed.... Today I plan on replacing the capacitors...., somethings got to give. :?
    jsmith2307
    jsmith2307, Feb 16, 2012
    #39
  20. kbssa

    kbssa New Member

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    Nothing yet ??
    kbssa, Feb 17, 2012
    #40
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