26 lines
424 B
C
26 lines
424 B
C
/*
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* Copyright 2018 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "board.h"
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volatile static int msTicks = 0;
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void SysTick_Handler(void) {
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msTicks++;
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}
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void init_timer (void) {
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SysTick_Config(SystemCoreClock / 1000);
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}
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int get_time_in_us() {
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int us = ((SystemCoreClock / 1000) - SysTick->VAL) / (SystemCoreClock / 1000000);
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us += msTicks * 1000;
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return us;
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}
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