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#include "test.h"
#include "timer.c"
static void check_timer(void)
{
struct timer t;
CHECK(TIMER_CPS == 1000);
/* Check: init */
timer_init();
CHECK(TIMSK0 & (1 << OCIE0A));
CHECK(TIFR0 == (1 << OCF0A));
CHECK(TCCR0A & (1 << WGM01));
CHECK((TCCR0B & ((0 << CS02) | (1 << CS01) | (1 << CS00))) ==
((0 << CS02) | (1 << CS01) | (1 << CS00)));
CHECK(abs((long)F_CPU - (OCR0A * 64 * TIMER_CPS)) < ((long)F_CPU / 100));
/* Check: ISR */
_timer_count_now = 42;
TIMER0_COMPA_vect();
CHECK_EQ_UU(_timer_count_now, 43);
/* Check: get */
_timer_count_now = 42;
CHECK_EQ_UU(timer_now(), 42);
/* Check: ms to count */
CHECK_EQ_II(_timer_ms_to_count(50),
TIMER_CPS * 50 / 1000);
CHECK_EQ_II(_timer_ms_to_count(100),
TIMER_CPS * 100 / 1000);
CHECK_EQ_II(_timer_ms_to_count(1000),
TIMER_CPS * 1000 / 1000);
CHECK_EQ_II(_timer_ms_to_count(2000),
TIMER_CPS * 2000 / 1000);
/* Rounded (round up) */
// CHECK_EQ_II(_timer_ms_to_count(1), 1);
// CHECK_EQ_II(_timer_ms_to_count(2), 1);
/* Negative */
CHECK_EQ_II(_timer_ms_to_count(-50),
(_signed_timcnt_t)(TIMER_CPS * -50 / 1000));
CHECK_EQ_II(_timer_ms_to_count(-100),
(_signed_timcnt_t)(TIMER_CPS * -100 / 1000));
CHECK_EQ_II(_timer_ms_to_count(-1000),
(_signed_timcnt_t)(TIMER_CPS * -1000 / 1000));
CHECK_EQ_II(_timer_ms_to_count(-2000),
(_signed_timcnt_t)(TIMER_CPS * -2000 / 1000));
/* Rounded (round up) */
// CHECK_EQ_II(_timer_ms_to_count(-1), 0);
// CHECK_EQ_II(_timer_ms_to_count(-2), 0);
// CHECK_EQ_II(_timer_ms_to_count(-9), 0);
// CHECK_EQ_II(_timer_ms_to_count(-10), -1);
/* Check: count to ms */
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)0),
(int32_t)(1000 * 0 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)1),
(int32_t)(1000 * 1 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)50),
(int32_t)(1000 * 50 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)100),
(int32_t)(1000 * 100 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)10000),
(int32_t)(1000 * 10000 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)32767),
(int32_t)(1000 * 32767 / TIMER_CPS));
/* negative */
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)-1),
(int32_t)(1000 * -1 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)-50),
(int32_t)(1000 * -50 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)-100),
(int32_t)(1000 * -100 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)-10000),
(int32_t)(1000 * -10000 / TIMER_CPS));
CHECK_EQ_II(_timer_count_to_ms((_signed_timcnt_t)-32768),
(int32_t)(1000 * -32768 / TIMER_CPS));
/* Check: arm */
_timer_count_now = 42;
timer_arm(&t, 100);
CHECK_EQ_UU(t.count,
42u + (uint32_t)_timer_ms_to_count(100));
/* Check: add */
_timer_count_now = 42;
timer_arm(&t, 100);
timer_add(&t, 50);
CHECK_EQ_UU(t.count,
42u + (uint32_t)_timer_ms_to_count(100) +
(uint32_t)_timer_ms_to_count(50));
/* Check: count since */
_timer_count_now = 42;
timer_arm(&t, 0);
t.count = 42;
CHECK_EQ_II(_timer_count_since(&t),
(_signed_timcnt_t)0);
t.count = 43;
CHECK_EQ_II(_timer_count_since(&t),
(_signed_timcnt_t)-1);
t.count = 41;
CHECK_EQ_II(_timer_count_since(&t),
(_signed_timcnt_t)1);
t.count = (_timcnt_t)-42;
CHECK_EQ_II(_timer_count_since(&t),
(_signed_timcnt_t)84);
/* Check: ms since */
_timer_count_now = (_timcnt_t)_timer_ms_to_count(500);
timer_arm(&t, 0);
t.count = (_timcnt_t)_timer_ms_to_count(500);
CHECK_EQ_II(timer_ms_since(&t), 0);
t.count = (_timcnt_t)_timer_ms_to_count(600);
CHECK_EQ_II(timer_ms_since(&t), -100);
t.count = (_timcnt_t)_timer_ms_to_count(400);
CHECK_EQ_II(timer_ms_since(&t), 100);
t.count = (_timcnt_t)_timer_ms_to_count(-500);
CHECK_EQ_II(timer_ms_since(&t), 1000);
/* Check: expired */
_timer_count_now = (_timcnt_t)_timer_ms_to_count(500);
timer_arm(&t, 0);
t.count = (_timcnt_t)_timer_ms_to_count(500);
CHECK(timer_expired(&t));
t.count = (_timcnt_t)_timer_ms_to_count(600);
CHECK(!timer_expired(&t));
t.count = (_timcnt_t)_timer_ms_to_count(400);
CHECK(timer_expired(&t));
t.count = (_timcnt_t)_timer_ms_to_count(-500);
CHECK(timer_expired(&t));
}
int main(void)
{
check_timer();
return 0;
}
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