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Thread: Teensy 3.2 compile problem

  1. #1
    Junior Member
    Join Date
    Feb 2018

    Teensy 3.2 compile problem

    Hello! I am completely new here and I have one problem.

    I following tutorial on youtube: and now I trying "12:02 Part 2-3 Playing Samples" When I export code and paste in arduino compiler I have error:

    Error code:

    C:\Users\Vukasin\AppData\Local\Temp\arduino_build_949578/core\core.a(main.cpp.o): In function `main':
    C:\Program Files (x86)\Arduino2018\hardware\teensy\avr\cores\teensy3/main.cpp:51: undefined reference to `setup'
    C:\Program Files (x86)\Arduino2018\hardware\teensy\avr\cores\teensy3/main.cpp:53: undefined reference to `loop'
    collect2.exe: error: ld returned 1 exit status
    Error compiling for board Teensy 3.2 / 3.1.
    Previous sketch "test hardware" with bip bip sound working fine.

    Can anyone helps meee

    Thank you!

  2. #2
    Senior Member+ MichaelMeissner's Avatar
    Join Date
    Nov 2012
    Ayer Massachussetts
    As the linker error says, you need to define two functions:
    • setup -- This is called once to allow you to initialize things;
    • loop -- This is called to do the stuff you want to do, and it is called continiously.

  3. #3
    Senior Member+ manitou's Avatar
    Join Date
    Jan 2013
    I suspect in pasting in the export from the gui, you deleted the latter part of the example sketch. Start again with a fresh copy of example "12:02 Part 2-3 Playing Samples" -- you'll see it has a setup() and loop(). Be careful as you paste in the export data from the gui.

  4. #4
    Junior Member
    Join Date
    Feb 2018
    Yes yes! there is a problem! I successfully compile this time! I thought code from export is enough, but now I saw mail idea what is export from GUI and what a must programming in arduino ide. Thank you very much Michael and Manitou for your time. Cya

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