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How can I read data thru a GPIO configuread as EXTI?

Question asked by AME on Jun 13, 2017
Latest reply on Jun 13, 2017 by AME

I'm trying to read an external ADC output.

The data are provided thru a DRDY pin.

When the DRDY falls, it generates an interruption in my STM32L1 (falling edge). Then, I must read the DRDY level eevery rising edge of a clock provide by the STM32L1 to the ADC.

Sould I configure the EXTI pin (PA3) in the callback function as input mode everytime the interrumption happens? (and then, before exiting to re-configure as EXTI)

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