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examples: timers: add timer_periodic_wakeup example

dev/timer
Kaspar Schleiser 7 years ago
parent
commit
c44c022ac4
  1. 9
      examples/timer_periodic_wakeup/Makefile
  2. 37
      examples/timer_periodic_wakeup/main.c

9
examples/timer_periodic_wakeup/Makefile

@ -0,0 +1,9 @@
APPLICATION = timer_periodic_wakeup
RIOTBASE ?= $(CURDIR)/../..
BOARD ?= native
USEMODULE += xtimer
QUIET ?= 1
FEATURES_REQUIRED += periph_timer
include $(RIOTBASE)/Makefile.include

37
examples/timer_periodic_wakeup/main.c

@ -0,0 +1,37 @@
/*
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup xtimer_examples
* @{
*
* @file
* @brief example application for setting a periodic wakeup
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
*
* @}
*/
#include <stdio.h>
#include "xtimer.h"
/* set interval to 1 second */
#define INTERVAL (1000000U)
int main(void)
{
uint32_t last_wakeup = xtimer_now();
while(1) {
xtimer_usleep_until(&last_wakeup, INTERVAL);
printf("slept until %"PRIu32"\n", xtimer_now());
}
return 0;
}
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