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nrf52dk: added examples

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This commit is contained in:
Wojciech Bober 2016-01-09 14:44:58 +01:00
parent d39ad95db5
commit 38481c513d
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examples/nrf52dk/timer-test/timer-test.c Normal file
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/**
* \file
* Tests related to clocks and timers
* This is based on clock_test.c from the original sensinode port
*
* \author
* Zach Shelby <zach@sensinode.com> (Original)
* George Oikonomou - <oikonomou@users.sourceforge.net> (rtimer code)
* Wojciech Bober <wojciech.bober@nordicsemi.no> (nRF52 DK adaptation)
*
*/
/**
* \addtogroup nrf52dk-examples Demo projects for nRF52 DK
* @{
*/
#include "contiki.h"
#include "sys/clock.h"
#include "sys/rtimer.h"
#include "dev/leds.h"
#include "nrf_delay.h"
#include <stdio.h>
/*---------------------------------------------------------------------------*/
#define TEST_CLOCK_DELAY_USEC 1
#define TEST_RTIMER 1
#define TEST_ETIMER 1
/*---------------------------------------------------------------------------*/
static struct etimer et;
#if TEST_CLOCK_DELAY_USEC
static rtimer_clock_t start_count, end_count, diff;
#endif
#if TEST_ETIMER
static clock_time_t count;
#endif
#if TEST_RTIMER
static struct rtimer rt;
static clock_time_t ct_now;
rtimer_clock_t rt_now, rt_until;
static volatile rtimer_clock_t rt_now_cb;
static volatile clock_time_t ct_cb;
#endif
static uint8_t i;
/*---------------------------------------------------------------------------*/
PROCESS(clock_test_process, "Clock test process");
AUTOSTART_PROCESSES(&clock_test_process);
/*---------------------------------------------------------------------------*/
#if TEST_RTIMER
void
rt_callback(struct rtimer *t, void *ptr)
{
rt_now_cb = RTIMER_NOW();
ct_cb = clock_time();
}
#endif
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(clock_test_process, ev, data)
{
PROCESS_BEGIN();
etimer_set(&et, 2 * CLOCK_SECOND);
PROCESS_YIELD();
printf("RTIMER_SECOND=%d CLOCK_SECOND=%d\n", RTIMER_SECOND, CLOCK_SECOND);
#if TEST_CLOCK_DELAY_USEC
printf("=======================\n");
printf("TEST clock_delay_usec()\n");
printf("=======================\n");
i = 1;
while(i < 7) {
start_count = RTIMER_NOW();
clock_delay_usec(10000 * i);
end_count = RTIMER_NOW();
diff = end_count - start_count;
printf("difference [usec]: %ld\n", 10000 * i - (diff*(1000000/RTIMER_SECOND)));
i++;
}
#endif
#if TEST_RTIMER
printf("=======================\n");
printf("TEST rtimer\n");
printf("=======================\n");
i = 0;
while(i < 5) {
etimer_set(&et, 2 * CLOCK_SECOND);
rt_now = RTIMER_NOW();
ct_now = clock_time();
rt_until = rt_now + RTIMER_SECOND;
printf("now [ticks]: %lu until[ticks]: %lu\n", rt_now, rt_until);
if (rtimer_set(&rt, rt_until, 1, rt_callback, NULL) != RTIMER_OK) {
printf("Error setting\n");
}
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
printf("rtimer difference [ticks]: %ld\n", RTIMER_SECOND - (rt_now_cb - rt_now));
printf("clock difference [ticks]: %ld\n", CLOCK_SECOND - (ct_cb - ct_now));
i++;
}
#endif
#if TEST_ETIMER
printf("=======================\n");
printf("TEST etimer\n");
printf("=======================\n");
i = 0;
while(i < 5) {
etimer_set(&et, i*CLOCK_SECOND);
count = clock_time();
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
etimer_reset(&et);
printf("difference [ticks]: %lu\n", i*CLOCK_SECOND - (clock_time() - count));
leds_toggle(LEDS_RED);
i++;
}
#endif
printf("Done!\n");
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/**
* @}
*/