31 lines
633 B
C
31 lines
633 B
C
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/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-12-16 Meco Man add usleep
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include <unistd.h>
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unsigned int sleep(unsigned int seconds)
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{
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rt_tick_t delta_tick;
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delta_tick = rt_tick_get();
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rt_thread_delay(seconds * RT_TICK_PER_SECOND);
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delta_tick = rt_tick_get() - delta_tick;
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return seconds - delta_tick/RT_TICK_PER_SECOND;
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}
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int usleep(useconds_t usec)
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{
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rt_thread_mdelay(usec / 1000u);
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rt_hw_us_delay(usec % 1000u);
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return 0;
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}
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