29 lines
562 B
C++
29 lines
562 B
C++
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/**
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* @file systick.cpp
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* @brief SysTick 时基模块实现。
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*/
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#include "main.h"
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#include "sys/systick.h"
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volatile uint32_t SysTickTimer::s_ms = 0U;
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void SysTickTimer::onInterrupt()
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{
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s_ms++;
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}
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void SysTickTimer::delayMs(uint32_t ms)
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{
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uint32_t start = s_ms;
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while((s_ms - start) < ms) { }
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}
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void SysTickTimer::initMs()
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{
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SystemCoreClockUpdate();
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SysTick_Config(SystemCoreClock / 1000U);
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}
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/* ----- 中断入口 C 包装 ---------------------------------------------- */
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void SysTick_Handler(void) { SysTickTimer::onInterrupt(); }
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