DlnGpioPinEnable() Function

The DlnGpioPinEnable() function connects a pin to the GPIO module.

Syntax

C/C++

DLN_RESULT DlnGpioPinEnable(
    HDLN handle,
    uint8_t pin
);

Parameters

handle: A handle to a DLN-series adapter.
pin: A number of the pin that you want to configure.

Return Value

DLN_RES_SUCCESS (0x00): The function successfully connected the pin to the GPIO module.
DLN_RES_INVALID_PIN_NUMBER (0xAB): The pin number is not valid. Use the DlnGpioGetPinCount() [1] function to find the maximum possible pin number.
DLN_RES_PIN_IN_USE (0xA5): Another module uses the pin and the GPIO module cannot use it. Use the DlnGetPinCfg() [2]function to get the name of module using the pin.

Remarks

If you have not changed the configuration settings for the pin which you want to configure as a GPIO, it will have the default configuration. See Digital Input Events [3] for details.

The DlnGpioPinEnable() function is declared in the dln_gpio.h file.