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Code Issues Releases Activity

removed SYSTICK_DelayUs()

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OneOfEleven
2023-11-05 20:26:42 +00:00
parent b438d7a903
commit 465d7333e3
10 changed files with 43 additions and 65 deletions
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21
driver/systick.c
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@ -27,27 +27,6 @@ void SYSTICK_Init(void)
gTickMultiplier = 48;
}
void SYSTICK_DelayUs(const uint32_t Delay)
{
const uint32_t ticks = Delay * gTickMultiplier;
uint32_t i = 0;
uint32_t Start = SysTick->LOAD;
uint32_t Previous = SysTick->VAL;
do {
uint32_t Delta;
uint32_t Current;
do Current = SysTick->VAL;
while (Current == Previous);
Delta = (Current < Previous) ? -Current : Start - Current;
i += Delta + Previous;
Previous = Current;
} while (i < ticks);
}
void SYSTICK_Delay250ns(const uint32_t Delay)
{
const uint32_t ticks = (Delay * gTickMultiplier) >> 2;