pinMode()

Initialization function

Configures the settings for DIO (General Purpose Digital IO) pins.

void pinMode(uint8_t u8pin, E_PIN_MODE mode)

This function allows configuration of the states of DIO0 to DIO19 and DO0,1 pins. For details on the configuration values, refer to the enumerated values of E_PIN_MODE in the DIO explanation and the DO explanation.

DO0 and DO1 are special-purpose pins and are generally used for other functions, but they can also be configured for output. However, these pins have hardware constraints, so caution is required when using them.

Both pins must be held at a HIGH level upon power-up. If the circuit configuration causes unstable voltage levels, it may result in the module failing to start.