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79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
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* Copyright (C) 2013 INRIA
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* Copyright (C) 2014 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup tests
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* @{
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*
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* @file
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* @brief Hwtimer test application
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*
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* @author Oliver Hahm <oliver.hahm@inria.fr>
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* @author Ludwig Ortmann <ludwig.ortmann@fu-berlin.de>
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*
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* @}
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*/
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#include <stdio.h>
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#include "hwtimer.h"
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#include "thread.h"
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#define BASE_DELAY (1000UL * 1000UL)
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#define DELTA_DELAY (10UL * 1000UL)
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#define MSGLEN 12 // == strlen("callback %2i")
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char msg[MSGLEN * HWTIMER_MAXTIMERS]; // == [callback 1\0callback 2\0...]
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void callback(void *ptr)
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{
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puts((char *) ptr);
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}
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int main(void)
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{
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puts("hwtimer test application...");
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puts("");
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puts(" Timers should print \"callback x\" once when they run out.");
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printf(" The order for x is 1, n-1, n-2, ..., 2 where n is the number of available hardware timers (%u on this platform).\n", HWTIMER_MAXTIMERS);
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puts(" In 1 second, one timer should fire every second/100 until all timers have run out.");
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puts(" Additionally the message \"hwtimer set.\" should be printed once 1 second from now.");
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puts("");
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puts("Setting timers:");
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puts("");
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unsigned long delay = BASE_DELAY + ((HWTIMER_MAXTIMERS - 1) * DELTA_DELAY);
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/* make the first timer first to fire so timers do not run out linearly */
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char *msgn = msg;
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snprintf(msgn, MSGLEN, "callback %2x", 1);
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hwtimer_set(HWTIMER_TICKS(BASE_DELAY), callback, (void *) msgn);
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printf("set %s\n", msgn);
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/* set up to HWTIMER_MAXTIMERS-1 because hwtimer_wait below also
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* needs a timer */
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for (int i = 1; i < (HWTIMER_MAXTIMERS - 1); i++) {
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msgn = msg + (i * MSGLEN);
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delay -= DELTA_DELAY;
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snprintf(msgn, MSGLEN, "callback %2x", i + 1);
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hwtimer_set(HWTIMER_TICKS(delay), callback, (void *) msgn);
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printf("set %s\n", msgn);
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}
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puts("");
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puts("All timers set.");
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puts("");
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hwtimer_wait(HWTIMER_TICKS(BASE_DELAY));
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puts("hwtimer set.");
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thread_sleep();
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return 0;
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}
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