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Thread: Suggestion for minor 3.x upgrade, 3.x.1 ish

  1. #1
    Senior Member
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    May 2015
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    Suggestion for minor 3.x upgrade, 3.x.1 ish

    The restore blink mode if program button held for 15 seconds would be a great upgrade if it fits in the old boot loader chip the next time you build a new batch.

  2. #2
    Senior Member PaulStoffregen's Avatar
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    Nov 2012
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    20,752
    Would you believe I've been considering doing this for some time. The main challenge is making a small enough LED blink program with enough USB functionality to respond to Arduino's auto-reboot request. On Teensy 4.0 the restore program is permanently burned into the top 4K of the flash chip, so it doesn't need to consume space inside the bootloader chip.

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