CubeMX Generating wrong GPIO configuration code for Input Capture

[VLe R.1]

Hi,

Beforehand, let me tell you my setup:

Board selected on CubeMX: STM32L100C-DISCO.

Input Capture with TIM2, Channel 2, Pin A1.

I've been working on a project where I have to measure frequency, so I setted up the Input Capture on Timer 2 as in the Picture:

After exporting the code, and implementing the functions as needed based on a tutorial I watched I didn't get any result out, nor any execution of the interrupt that should start at the capture event, what I noticed is that the GPIO pin is being declared as a alternate function push pull output instead of an input... is that ok?, you can watch that in this picture:

In case anyone is interested, this is the tutorial I followed: https://www.youtube.com/watch?v=de4tfSzXrGM&t=693s

Thanks in advance for your comments, I am not posting the code as I first would like to check that the way cube mx is showing the info as in the pictures is correct...

Víctor.

[waclawek.jan · Accepted solution]

>GPIO pin is being declared as a alternate function push pull output

>instead of an input... is that ok?, 

Yes.

When set as AF, the connected peripheral controls the actual direction of the pin, i.e. whether it's input or output.

JW

[VLe R.1]

Thank you very much for your answer, now I know the problem must reside somewhere else, I will post again in case I can't solve it by myself.

Víctor.