Stepper Motor Board with ZDev

#include <board.h>
#include <gpio.h>
#include <delay.h>

#define MAX_PIN 4
#define ON 1
#define OFF 0

int pins[] = {GPIO2_0, GPIO2_2, GPIO2_1, GPIO2_3};

void stepper_init(void)
{
        int i;

        for (i = 0; i < MAX_PIN; i++) {
                gpio_enable_pin(pins[i]);
                gpio_direction_output(pins[i], OFF);
                gpio_set_pin(pins[i], OFF);
        }
}

int main(void)
{
        int i, j;

        board_init();
        delay_init();
        gpio_init();

        stepper_init();

        i = 0;
        j = 1;

        while (1) {
                gpio_set_pin(pins[i], ON);
                gpio_set_pin(pins[j], ON);

                mdelay(1000);

                gpio_set_pin(pins[i], OFF);
                gpio_set_pin(pins[j], OFF);

                i = (i + 1) % MAX_PIN;
                j = (j + 1) % MAX_PIN;
        }

        return 0;
}