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[FAQ] EK-TM4C123GXL: How to resolve unexpected behavior on pins PD0, PD1, PB6, and/or PB7

Ralph Jacobi
Guru*** 134925 points
Part Number: EK-TM4C123GXL

Observed Issue: One or more of PD0, PD1, PB6, and/or PB7 are exhibiting unexpected behavior when trying to use them for any functionality.

  • 0
    TI__Guru*** 134925 points

    Solution: The EK-TM4C123GXL has a pair of zero ohm resistors populated which tie together:

    • PD0 with PB6
    • PD1 with PB7

    These resistors are used only to support the Airmouse example that works in conjunction with the BOOSTXL-SENSHUB BoosterPack.

    They can be removed to allow the GPIO to operate independently as long as that example is not being currently used.