68 lines
881 B
C
68 lines
881 B
C
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#include "drv_tick.h"
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//===============time====================
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#define MAIN_PERIOD_MS (20)
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uint32_t tick_ms = 0;
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uint32_t tick_us = 0;
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volatile uint32_t tick_count_200Hz = 0;
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void tick_init(void)
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{
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HAL_TIM_Base_Start_IT(&HTIMER_HANDLE);
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}
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void tick_count(void)
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{
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tick_ms += 1;
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tick_us += 1000;
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if(!(tick_ms % MAIN_PERIOD_MS))
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{
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tick_count_200Hz += 1;
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}
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}
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uint32_t get_msec(void)
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{
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return tick_ms;
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}
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uint32_t get_usec(void)
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{
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return tick_us + HTIMER_HANDLE.Instance->CNT;
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}
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void delay_usec(uint32_t ticks_usec)
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{
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uint32_t tick0;
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uint32_t tick1;
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uint32_t dtick;
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tick0 = get_usec();
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do
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{
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tick1 = get_usec();
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if (tick1 >= tick0)
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{
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dtick = tick1 - tick0;
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}
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else
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{
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dtick = (0xFFFFFFFF - tick0) + tick1;
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}
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} while (dtick < ticks_usec);
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}
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