DlnGpioPinPullupDisable() Function

The DlnGpioPinPullupDisable() deactivates an embedded pull-up resistor for the specified pin. For more information, read Pull-up/Pull-down Resistors.

Syntax

C/C++

DLN_RESULT DlnGpioPinPullupDisable(
    HDLN handle,
    uint8_t pin
 );

Parameters

handle: A handle to the DLN-series adapter.
pin: A number of the pin for which you want to disable a pull-up resistor.

Return Value

DLN_RES_SUCCESS (0x00): The function deactivated the pull-up resistor successfully.
DLN_RES_INVALID_PIN_NUMBER (0xAB): The pin number is not valid. Use the DlnGpioGetPinCount() function to find the maximum possible pin number.

Remarks

By default, pull-up resistors are active for GPIO pins. You can activate it manually by using the DlnGpioPinPullupEnable() function. To check the current configuration set for a pin, use the DlnGpioPinPullupIsEnabled() function.

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