mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*
|
|
* Copyright (C) 2019 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 tests
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief Peripheral timer test application
|
|
*
|
|
* @author Kaspar Schleiser <kaspar@schleiser.de>
|
|
*
|
|
* @}
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "board.h"
|
|
#include "macros/units.h"
|
|
#include "thread.h"
|
|
#include "thread_flags.h"
|
|
|
|
#include "periph/timer.h"
|
|
|
|
/* recreate logic to obtain valid XTIMER_DEV used in xtimer.h, but don't include
|
|
* xtimer.h, as this leads to issues on some boards when the xtimer module is
|
|
* not used */
|
|
#ifndef XTIMER_DEV
|
|
# define XTIMER_DEV TIMER_DEV(0)
|
|
#endif
|
|
#ifndef XTIMER_HZ
|
|
# define XTIMER_HZ MHZ(1)
|
|
#endif
|
|
#ifndef XTIMER_WIDTH
|
|
# if(TIMER_0_MAX_VALUE) == 0xfffffful
|
|
# define XTIMER_WIDTH (24)
|
|
# elif (TIMER_0_MAX_VALUE) == 0xffff
|
|
# define XTIMER_WIDTH (16)
|
|
# else
|
|
# define XTIMER_WIDTH (32)
|
|
# endif
|
|
#endif /* !defined(XTIMER_WIDTH) */
|
|
|
|
#ifndef TEST_TIMER_FREQ
|
|
# define TEST_TIMER_DEV XTIMER_DEV
|
|
# define TEST_TIMER_FREQ XTIMER_HZ
|
|
# define TEST_TIMER_WIDTH XTIMER_WIDTH
|
|
#endif
|
|
|
|
#ifndef TEST_MAX_DIFF
|
|
#define TEST_MAX_DIFF (1000LU)
|
|
#endif
|
|
|
|
#if TEST_TIMER_WIDTH == 32
|
|
# define TEST_TIMER_MAX (0xFFFFFFFFLU)
|
|
#else
|
|
# define TEST_TIMER_MAX ((1UL << TEST_TIMER_WIDTH) - 1)
|
|
#endif
|
|
|
|
static void cb(void *arg, int chan)
|
|
{
|
|
(void)chan;
|
|
thread_flags_set(arg, 1);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
puts("\nTest for peripheral TIMER short timer_set()\n");
|
|
|
|
printf("This test tries timer_set() with decreasing intervals down to 0.\n"
|
|
"You should see lines like 'interval <n>: OK', followed by a success"
|
|
" message.\n"
|
|
"On failure, this test prints an error message.\n\n");
|
|
|
|
printf("testing periph_timer %u, freq %lu, bits = %u\n",
|
|
TEST_TIMER_DEV, TEST_TIMER_FREQ, TEST_TIMER_WIDTH);
|
|
timer_init(TEST_TIMER_DEV, TEST_TIMER_FREQ, cb, thread_get_active());
|
|
|
|
uint32_t interval = 16;
|
|
const unsigned max_repetitions = 128;
|
|
while (interval--) {
|
|
for (unsigned rep = 0; rep < max_repetitions; rep++) {
|
|
uint32_t before = timer_read(TEST_TIMER_DEV);
|
|
timer_set(TEST_TIMER_DEV, 0, interval);
|
|
while (!thread_flags_clear(1)) {
|
|
uint32_t diff = (timer_read(TEST_TIMER_DEV) - before)
|
|
& TEST_TIMER_MAX;
|
|
if (diff > TEST_MAX_DIFF) {
|
|
printf("ERROR: too long delay, aborted after %" PRIu32
|
|
" (TEST_MAX_DIFF=%lu) on repetition %u\n"
|
|
"TEST FAILED\n",
|
|
diff, TEST_MAX_DIFF, rep);
|
|
return EXIT_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
printf("interval %" PRIu32 ": OK\n", interval);
|
|
}
|
|
|
|
puts("\nTEST SUCCEEDED");
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|