lv_tick.h

Typedefs

typedef uint32_t (*lv_tick_get_cb_t)(void)

typedef void (*lv_delay_cb_t)(uint32_t ms)

Functions

void lv_tick_inc(uint32_t tick_period)

You have to call this function periodically

参数:

tick_period -- the call period of this function in milliseconds

uint32_t lv_tick_get(void)

Get the elapsed milliseconds since start up

返回:

the elapsed milliseconds

uint32_t lv_tick_elaps(uint32_t prev_tick)

Get the elapsed milliseconds since a previous time stamp

参数:

prev_tick -- a previous time stamp (return value of lv_tick_get() )

返回:

the elapsed milliseconds since 'prev_tick'

void lv_delay_ms(uint32_t ms)

Delay for the given milliseconds. By default it's a blocking delay, but with lv_delay_set_cb() a custom delay function can be set too

参数:

ms -- the number of milliseconds to delay

void lv_tick_set_cb(lv_tick_get_cb_t cb)

Set the custom callback for 'lv_tick_get'

参数:

cb -- call this callback on 'lv_tick_get'

void lv_delay_set_cb(lv_delay_cb_t cb)

Set a custom callback for 'lv_dalay_ms'

参数:

cb -- call this callback in 'lv_dalay_ms'

struct lv_tick_state_t

Public Members

uint32_t sys_time

uint8_t sys_irq_flag

lv_tick_get_cb_t tick_get_cb

lv_delay_cb_t delay_cb