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Results tagged with gpio-external-interrupt
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user 252859
Certain GPIO pins could be programmed as external interrupt source, through which external devices (such as RF modules, buttons, switches, etc.) could generate interrupts.
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How to detect the presence/ absence of a PWM signal on a GPIO pin?
I just want to set or clear a flag by detecting the presence or absence of a PWM signal with approximately >100 kHz frequency on a GPIO pin. I studied that a simple RC low pass filter can be used to c …
