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Thread: Teensy 3.6 CPU in Thumb or ARM mode?

  1. #1

    Teensy 3.6 CPU in Thumb or ARM mode?

    Is the CPU of the Teensy 3.6 Board running in Thumb mode or in ARM mode ?

  2. #2
    Senior Member PaulStoffregen's Avatar
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    Nov 2012
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    20,057
    Thumb mode. Technically, Thumb2.

    It's Cortex-M4. The Cortex-M processors are always thumb mode. They never operate in ARM mode instructions.

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