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)