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This commit adds cpu, platform and example files, providing support for running Contiki on TI's cc2538 DK
184 lines
5.5 KiB
C
184 lines
5.5 KiB
C
/*
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* Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup cc2538-examples
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* @{
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*
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* \defgroup cc2538-timers cc2538dk Timer Test Project
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*
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* This example tests the correct functionality of clocks and timers.
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*
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* More specifically, it tests clock_seconds, rtimers, etimers and
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* clock_delay_usec.
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*
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* This is largely-based on the same example of the cc2530 port.
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* @{
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*
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* \file
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* Tests related to clocks and timers
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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 <stdio.h>
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/*---------------------------------------------------------------------------*/
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#define TIMER_TEST_CONF_TEST_CLOCK_DELAY_USEC 1
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#define TIMER_TEST_CONF_TEST_RTIMER 1
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#define TIMER_TEST_CONF_TEST_ETIMER 1
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#define TIMER_TEST_CONF_TEST_CLOCK_SECONDS 1
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/*---------------------------------------------------------------------------*/
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static struct etimer et;
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#if TIMER_TEST_CONF_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 TIMER_TEST_CONF_TEST_CLOCK_SECONDS
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static unsigned long sec;
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#endif
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#if TIMER_TEST_CONF_TEST_ETIMER
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static clock_time_t count;
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#endif
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#if TIMER_TEST_CONF_TEST_RTIMER
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static struct rtimer rt;
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rtimer_clock_t rt_now, rt_for;
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static clock_time_t ct;
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#endif
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static uint8_t i;
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/*---------------------------------------------------------------------------*/
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PROCESS(timer_test_process, "Timer test process");
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AUTOSTART_PROCESSES(&timer_test_process);
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/*---------------------------------------------------------------------------*/
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#if TIMER_TEST_CONF_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 = RTIMER_NOW();
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ct = clock_time();
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printf("Task called at %lu (clock = %lu)\n", rt_now, ct);
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}
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#endif
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(timer_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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#if TIMER_TEST_CONF_TEST_CLOCK_DELAY_USEC
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printf("-----------------------------------------\n");
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printf("clock_delay_usec test, (10,000 x i) usec:\n");
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printf("N.B. clock_delay_usec is more accurate than rtimers\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("Requested: %u usec, Real: %lu rtimer ticks = ~%lu us\n",
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10000 * i, diff, diff * 1000000 / RTIMER_SECOND);
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i++;
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}
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#endif
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#if TIMER_TEST_CONF_TEST_RTIMER
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printf("-----------------------------------------\n");
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printf("Rtimer Test, 1 sec (%u rtimer ticks):\n", RTIMER_SECOND);
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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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printf("=======================\n");
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ct = clock_time();
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rt_now = RTIMER_NOW();
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rt_for = rt_now + RTIMER_SECOND;
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printf("Now=%lu (clock = %lu) - For=%lu\n", rt_now, ct, rt_for);
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if(rtimer_set(&rt, rt_for, 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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i++;
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}
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#endif
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#if TIMER_TEST_CONF_TEST_ETIMER
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printf("-----------------------------------------\n");
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printf("Clock tick and etimer test, 1 sec (%u clock ticks):\n",
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CLOCK_SECOND);
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i = 0;
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while(i < 10) {
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etimer_set(&et, CLOCK_SECOND);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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etimer_reset(&et);
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count = clock_time();
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printf("%lu ticks\n", 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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#if TIMER_TEST_CONF_TEST_CLOCK_SECONDS
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printf("-----------------------------------------\n");
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printf("Clock seconds test (5s):\n");
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i = 0;
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while(i < 10) {
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etimer_set(&et, 5 * CLOCK_SECOND);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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etimer_reset(&et);
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sec = clock_seconds();
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printf("%lu seconds\n", sec);
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leds_toggle(LEDS_GREEN);
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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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*/
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