Solved
STM32F3 pin external interrupt and Alternate Function mode
Posted on December 12, 2017 at 11:28
Hello,
I am using a STM32F334.
Is it possible to configure a pin in Alternate Function Mode (Timer input Channel for my project) and to use at the same time the pin as an external interrupt source ?
It seems to work properly in my project but I am surprised it does and could not find any information on this case in the Reference Manual. Is it unrecommended to do it ?
According to Reference Manual, external interrupts are handled through EXTI and SYSCFG_EXTICRx registers while mode of GPIO pin is handled through GPIOx_MODER registers which are not related.
Thank you,
#pin-configuration