System Installation
RUBY-D716VG2AR User’s Manual
3-27
printf("PIN 1,2,3,4 is output ; PIN 5,6,7,8 is input\n");
printf("GPIO 1 ---> GPIO 5\n");
printf("GPIO 2 ---> GPIO 6\n");
printf("GPIO 3 ---> GPIO 7\n");
printf("GPIO 4 ---> GPIO 8\n");
printf("GND xxxx VCC <===PWR/GND pins, DO NOT short them!\n");
printf("Test Begins...\n");
gpio_setdirection (0xF0);
gpio_write (0x00);
gpio_readpin (5, &d2);
delay (2);
if (d2 == 0)
printf ("GPIO 1->GPIO 5 test PASS !!! (pull low)\n");
else
printf ("GPIO 1->GPIO 5 test FAIL !!! (pull high) \n");
gpio_readpin (6, &d2);
delay (2);
if (d2 == 0)
printf ("GPIO 2->GPIO 6 test PASS !!! (pull low)\n");
else
printf ("GPIO 2->GPIO 6 test FAIL !!! (pull high)\n");
gpio_readpin (7, &d2);
delay (2);
if (d2 == 0)
printf ("GPIO 3->GPIO 7 test PASS !!! (pull low)\n");
else
printf ("GPIO 3->GPIO 7 test FAIL !!! (pull high)\n");
gpio_readpin (8, &d2);
delay (2);
if (d2 == 0)
printf ("GPIO 4->GPIO 8 test PASS !!! (pull low)\n");
else
printf ("GPIO 4->GPIO 8 test FAIL !!! (pull high)\n");
return
0;
}