49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/mphal.h"
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#include "supervisor/port.h"
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#include "supervisor/shared/tick.h"
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#include "shared-bindings/time/__init__.h"
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uint64_t common_hal_time_monotonic_ms(void) {
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return supervisor_ticks_ms64();
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}
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uint64_t common_hal_time_monotonic_ns(void) {
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uint8_t subticks = 0;
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uint64_t ticks = port_get_raw_ticks(&subticks);
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// A tick is 976562.5 nanoseconds so multiply it by the base and add half instead of doing float
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// math.
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// A subtick is 1/32 of a tick.
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// 30518 is 1e9 / 32768
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return 976562 * ticks + ticks / 2 + 30518 * subticks;
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}
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void common_hal_time_delay_ms(uint32_t delay) {
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mp_hal_delay_ms(delay);
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}
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