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[feat] add timer_delay_us function

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This commit is contained in:
zhji 2025-06-02 21:34:05 +08:00
parent 35186111b8
commit ab88fa8455
2 changed files with 8 additions and 0 deletions
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1
driver/inc/timer.h
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@ -21,6 +21,7 @@ uint32_t timer_count_h_read_raw(void);
void timer_start(void); void timer_start(void);
void timer_stop(void); void timer_stop(void);
int timer_is_stopped(void); int timer_is_stopped(void);
void timer_delay_us(uint32_t us);
void timer_alarm_set(uint8_t alarm_id, uint32_t alarm_count); void timer_alarm_set(uint8_t alarm_id, uint32_t alarm_count);
uint32_t timer_alarm_get(uint8_t alarm_id); uint32_t timer_alarm_get(uint8_t alarm_id);

7
driver/src/timer.c
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@ -44,6 +44,13 @@ int timer_is_stopped(void)
} }
} }
void timer_delay_us(uint32_t us)
{
uint64_t time = timer_count_read();
time += us;
while (timer_count_read() < time);
}
void timer_alarm_set(uint8_t alarm_id, uint32_t alarm_count) void timer_alarm_set(uint8_t alarm_id, uint32_t alarm_count)
{ {
if (alarm_id >= TIMER_ALARM_MAX) { if (alarm_id >= TIMER_ALARM_MAX) {