How to accurately set the interrupt period of the epit

[864535720]

Hello everyone
I use the official development board of IMX6Q, my operating system is linux3.14.52. Now, my epit timer is working, but I have a problem. I want to interrupt every 10us, but after I actually measured it, I found that the interrupt period is not 10us. I tried to modify the timer comparator. No matter how I set it, it is always inaccurate. Can you guide me?
look forward to your reply. Thank you

[Rita_Wang]

Hi,

You can not calculate the interrupt time accurately, as the Linux is not real-time operating system. You can consider the the QNX, VxWork real-time operating system.
Have a great day,
Rita

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[864535720]

Thank you for your answer. Our real-time requirements are not particularly high. Currently, the clock frequency is calculated, and the obtained timer trigger value can meet my requirements.