Contiki-NG
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blink.c
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1/*
2 * Copyright (c) 2007, Swedish Institute of Computer Science.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the Institute nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * This file is part of the Contiki operating system.
30 *
31 */
32
33/**
34 * \file
35 * A quick program that blinks the LEDs
36 * \author
37 * Adam Dunkels <adam@sics.se>
38 */
39
40#include "contiki.h"
41#include "dev/leds.h"
42/*---------------------------------------------------------------------------*/
43PROCESS(blink_process, "Blink");
44AUTOSTART_PROCESSES(&blink_process);
45/*---------------------------------------------------------------------------*/
46PROCESS_THREAD(blink_process, ev, data)
47{
48 PROCESS_EXITHANDLER(goto exit;)
50
51 while(1) {
52 static struct etimer et;
55 leds_on(LEDS_ALL);
58 leds_off(LEDS_ALL);
59 }
60
61 exit:
62 leds_off(LEDS_ALL);
64}
65/*---------------------------------------------------------------------------*/
#define CLOCK_SECOND
A second, measured in system clock time.
Definition clock.h:103
#define LEDS_ALL
The OR mask representation of all device LEDs.
Definition leds.h:195
static bool etimer_expired(struct etimer *et)
Check if an event timer has expired.
Definition etimer.h:201
void etimer_set(struct etimer *et, clock_time_t interval)
Set an event timer.
Definition etimer.c:177
#define PROCESS(name, strname)
Declare a process.
Definition process.h:307
#define PROCESS_EXITHANDLER(handler)
Specify an action when a process exits.
Definition process.h:254
#define PROCESS_BEGIN()
Define the beginning of a process.
Definition process.h:120
#define PROCESS_WAIT_EVENT_UNTIL(c)
Wait for an event to be posted to the process, with an extra condition.
Definition process.h:157
#define PROCESS_END()
Define the end of a process.
Definition process.h:131
#define PROCESS_THREAD(name, ev, data)
Define the body of a process.
Definition process.h:273
Header file for the LED HAL.
A timer.
Definition etimer.h:79