If you remove the external components for the keypad (capacitors, resistors, push buttons, TVS; can just remove components from the MCU to the resistor, isolating the MCU GPIO) and simply probe the MCU pin, do
If you remove the external components for the keypad (capacitors, resistors, push buttons, TVS; can just remove components from the MCU to the resistor, isolating the MCU GPIO) and simply probe the MCU pin, do you still encounter this issue where calling GPIO_PinOutSet or ...