#include "main.h"

void CLK_SysTickDelay(uint32_t us)
{
    SysTick->LOAD = us * CyclesPerUs;
    SysTick->VAL  = (0x00);
    SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk;
    /* Waiting for down-count to zero */
    while((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) == 0);
}

void DelayUs(uint32_t us)
{
    while(us--)
    {
        CLK_SysTickDelay(1);
    }
}
void DelayMs(uint32_t ms)
{
    while(ms--)
    {
        CLK_SysTickDelay(1000);
    }
}