mirrors/uv-k5-firmware-custom
0
Fork 0
mirror of https://github.com/OneOfEleven/uv-k5-firmware-custom.git synced 2025-06-19 14:48:03 +03:00
Code Issues Releases Activity

fix compile warning

Browse Source
This commit is contained in:
OneOfEleven
2023-11-03 19:51:27 +00:00
parent e2e030aed4
commit fca972a2f2
10 changed files with 105 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
driver/systick.c
View File

@ -27,19 +27,44 @@ void SYSTICK_Init(void)
gTickMultiplier = 48;
}
void SYSTICK_DelayUs(uint32_t Delay)
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;
const uint32_t ticks = Delay * gTickMultiplier;
uint32_t i = 0;
uint32_t Start = SysTick->LOAD;
uint32_t Previous = SysTick->VAL;
do {
uint32_t Current;
uint32_t Delta;
while ((Current = SysTick->VAL) == Previous) {}
Delta = (Current < Previous) ? -Current : Start - Current;
i += Delta + Previous;
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;
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);
}