How can GPIO pins be set to High drive?

[T_Sano]

I want to set the Drive strength of pin 6 of GPIO to High drive.
In this case, how should the 5th argument of the nrf_gpio_cfg () function be set?

[Amanda Hsieh]

Hi, 

The drive strength is set in the GPIO PIN_CNF[n] register, field DRIVE:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fgpio.html&anchor=register.PIN_CNF-0 

Here's an example for setting H0H1 with the help from nrf_gpio.h:

nrf_gpio_cfg(
pin_number,
NRF_GPIO_PIN_DIR_OUTPUT,
NRF_GPIO_PIN_INPUT_DISCONNECT,
NRF_GPIO_PIN_NOPULL,
NRF_GPIO_PIN_H0H1,
NRF_GPIO_PIN_NOSENSE);

Regards,
Amanda

[T_Sano]

Thanks for your cooperation.
I understand that I should set the 5th argument to NRF_GPIO_PIN_H0H1.