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How fast can I counter using external interrupt?

Question asked by Shin KS on Jun 28, 2017

Hi everyone

I'm usging STM32F103VE @72Mhz

I wonder how fast can I counter using external interrupt?

These days I try to count clock signal by EXTI. ( clock signal is 10 Mhz) Is it possible?

If impossible then, what is limit frequence of EXTI?  (using STM32F103VE )

 

Thanks

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