Software/Embedded_SW/Embedded/delay.c


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/*
 * delay.c - Delay in millisecond and microsecond functions
 *
 * Convert from SysCtlDelay in TivaWare library to milliseconds and microseconds delay.
 *
 *  Created on: Dec 13, 2018
 *      Author: avi
 */

#include <stdint.h>
#include <stdbool.h>
#include "driverlib/sysctl.h"
#include "Include.h"


void delayms(uint32_t ui32ms)
{
    //SysCtlClockGet();
    // 1 clock cycle = 1 / SysCtlClockGet() second
    // 1 SysCtlDelay = 3 clock cycle = 3 / SysCtlClockGet() second
    // 1 second = SysCtlClockGet() / 3
    // 0.001 second = 1 ms = SysCtlClockGet() / 3 / 1000

    SysCtlDelay(ui32ms * (SYS_CLK_FREQ / 3 / 1000));
}

void delayUs(uint32_t ui32Us)
{
    SysCtlDelay(ui32Us * (SYS_CLK_FREQ / 3 / 1000000));
}