What is the exact meaning of''the EXTI can detect an external line with a pulse width shorter than the internal APB2 clock period'' in STM32F1
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‎2017-12-28 04:31 AM
Please if anyone can explain this to me!Thanks in advance.
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‎2017-12-29 03:10 AM
A minimum pulse width on EXTI is enough to trigger the interrupt. This minimum pulse width is not dependant an th APB2 clock frequency,
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‎2017-12-29 09:28 AM
But is likely dependent on the resychronizer at the pin.
Up vote any posts that you find helpful, it shows what's working..
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‎2017-12-29 03:15 PM
Clive,
this has been discussed a couple of months ago, and as Edison from the ST Prague support group confirmed, EXTI is surprisingly asynchronous.
Jan
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‎2018-01-17 03:38 PM
Just plugging in the link:
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‎2018-01-18 04:22 AM
Thank you all for helping me !!