GPIOS: Toggle one pin using port function

Toggle a pin logic state, for this example we assume we don not know if there is an led connected to pin 9 port gpio2 (but is there), for that reason we are only use the device tree definitions in file zephyr/dts/common/nordic/nrf54l_05_10_15.dtsi , as with any other peripheral we need to get a device descriptor structure.

main.c

/* Include libraries */
#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>

/* get the node identifier from its label, in this case will be gpio@50400 for port 2 */
#define GPIO2_NODE DT_NODELABEL( gpio2 )

int main( void )
{
    /* Get the device descriptor for port 2 */
    const struct device *gpio2 = DEVICE_DT_GET( GPIO2_NODE );
    
    /* Configure pin 9 as output */
    gpio_pin_configure( gpio2, 9, GPIO_OUTPUT);
    
    while(1)
    {
        /* Toggle pin 9 from port 2 using a port function */
        gpio_pin_toggle( gpio2, 9 );
        /* 300ms Delay */
        k_msleep( 300 );
    }
    return 0;
}

prj.conf

# Disable optimizations
CONFIG_NO_OPTIMIZATIONS=y
# Include GPIO driver in system config ( Kconfig )
CONFIG_GPIO=y