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Is there any timer which does not affect linux os operation?

Question asked by George Fukutomi on Jul 8, 2016
Latest reply on Jul 11, 2016 by George Fukutomi

Dear all,

 

Currently, my customer has planned the option part relevant to the automotive.

The product has an input for getting to know automotive speed.

When faster, the pulse period is 1ms.

 

They want to count the pulse period by Linux on i.MX7D.

It seems that Linux OS always uses GPT at least.

 

Is there any timer which does not affect linux os operation?

And, Is there any way OS gets to know a pulse period count, using a hardware timer?

 

Best Regards,

George

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