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