blob: 62b694a7cf29b7eb261faae7d7956d34ec6d3d8b [file] [log] [blame]
Deokgyu Yang2c7e86b2020-04-28 10:56:11 +09001/*
2 * blink.c:
3 * Simple "blink" test for the Quick2Wire interface board.
4 *
5 * Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
6 ***********************************************************************
7 * This file is part of wiringPi:
8 * https://projects.drogon.net/raspberry-pi/wiringpi/
9 *
10 * wiringPi is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * wiringPi is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
22 ***********************************************************************
23 */
24
25#include <stdio.h>
26#include <wiringPi.h>
27
28#define LED 1
29
30int main (void)
31{
32
33// Enable the on-goard GPIO
34
35 wiringPiSetup () ;
36
37 printf ("Raspberry Pi - Quick2Wire Mainboard LED Blink Test\n") ;
38
39 pinMode (LED, OUTPUT) ;
40
41 for (;;)
42 {
43 digitalWrite (LED, HIGH) ;
44 delay (500) ;
45 digitalWrite (LED, LOW) ;
46 delay (500) ;
47 }
48
49 return 0 ;
50}