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66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
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/**
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* @file lv_hal_tick.h
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* Provide access to the system tick with 1 millisecond resolution
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*/
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#ifndef LV_HAL_TICK_H
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#define LV_HAL_TICK_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#ifdef LV_CONF_INCLUDE_SIMPLE
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#include "lv_conf.h"
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#else
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#include "../../lv_conf.h"
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#endif
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#include <stdint.h>
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/*********************
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* DEFINES
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*********************/
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#ifndef LV_ATTRIBUTE_TICK_INC
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#define LV_ATTRIBUTE_TICK_INC
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#endif
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* You have to call this function periodically
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* @param tick_period the call period of this function in milliseconds
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*/
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LV_ATTRIBUTE_TICK_INC void lv_tick_inc(uint32_t tick_period);
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/**
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* Get the elapsed milliseconds since start up
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* @return the elapsed milliseconds
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*/
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uint32_t lv_tick_get(void);
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/**
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* Get the elapsed milliseconds since a previous time stamp
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* @param prev_tick a previous time stamp (return value of systick_get() )
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* @return the elapsed milliseconds since 'prev_tick'
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*/
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uint32_t lv_tick_elaps(uint32_t prev_tick);
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/**********************
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* MACROS
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**********************/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LV_HAL_TICK_H*/
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