how to put delay without using timers?

[Anand Krishnan]

Posted on April 06, 2017 at 15:58

.

[Tesla DeLorean]

Posted on April 06, 2017 at 17:20

Use DWT_CYCCNT ?

[Imen.D]

Posted on April 06, 2017 at 17:30

Hi

Krishnan.Anand

,

If you are HAL user, you can use HAL_Delay function.

Imen

[Tesla DeLorean]

Posted on April 06, 2017 at 17:53

That tends to use a TIM or SysTick, and a software based counter providing millisecond level granularity.

I sense the OP wants software spin loops, or sub-microsecond. The vague 'title as a question' leaves a lot to be desired. Ask better/smarter questions.

[S.Ma]

Posted on April 06, 2017 at 19:18

Be more explicit. What is the real need behind? As some say, please elaborate. Making delays without timer can bring exotic answers such as put a cap on a gpio, charge it with the gpio, then switch it as exti input to trigger an interrupt or even a stopped clock restart...

[shingadaddy]

Posted on April 06, 2017 at 23:33

For...

While...

Hold the reset button longer....

Exotic yes.

[antonius]

Posted on April 07, 2017 at 02:18

That will make a delay :

void Delay(int nTime)

{

    unsigned int i;

    unsigned long j;

    for(i = nTime;i > 0;i--)

        for(j = 1000;j > 0;j--);    

}

or

in CubeMX

1s delay = HAL_Delay(1000);

[Tesla DeLorean]

Posted on April 07, 2017 at 03:31

The use of the volatile keyword is strongly recommended so the compiler/optimizer doesn't fold the loop. These types of loops should generally be avoided

[antonius]

Posted on April 07, 2017 at 03:35

what does 'volatile keyword' mean ? do you mean nTime ?