readAnalog() on Nucleo F746ZG problem

[xRadx]

Hi,
as in the subject
it seems that while using the above board - analogRead(PA3) returns value of approx 3k all the time, regardless of the voltage supplied to A0 pin.

But the same code works correctly on Nucleo F767ZI board.

[fpistm]

Hi @xRadx
I've tested and it works as expected.
Using analogRead(A0); or analogRead(PA3);

[xRadx]

Did you try to supply it with different voltages and seen the values are changing?

[fpistm]

Did you try to supply it with different voltages and seen the values are changing?

Yes put 0V get 0 and 3.3V get 1023.

[fpistm]

Are you sure you selected the right Board part number in the menu?

[xRadx]

Yes, I am sure. I will check again later on and submit the code and results. But I already checked like 3 times and all time the same issue

[fpistm]

So probably an hardware issue.

[fpistm]

Could you tell me what is the board version? You should have a sticker with mbxxxxxx

[fpistm]

Looking at the schematics available, it seems there is only one and PA3 is well 10 available on the Ardunio UNO connector.
So no issue. The only issue I can see is an hardware issue with this specific pin. Burned ?
Is other analog pins works? Does it working as standard GPIO ? ...