STM32G071R8T6 GPIO - input issue on PA4

[MPF]

Hi,

We have a custom board with a STM32G071R8T6TR, PA4 is configured as input but it does not work.

All other inputs on the boards are working correct but PA4 is a problem.

If we configure PA4 as an output it works fine, we toggle hi/lo, we have checked IDR for PA4 and the IDR does not change which is a problem, it does that when we toggle PA5 and PA6 hi/lo the IDR for PA5 and PA6 change.

If PA4 is configured as input and we change input hi/lo there is no change in IDR either.

We have cheked MODER is correct.

What do we miss here or could this be a defect STM32 MCU ?

Kind regards

Morten

[MPF]

Hi Richard,

Thank you for input. GPIO_LCKR bits are all 0 for all GPIO pins.

/MPF

[MPF · Accepted solution]

Hi,

We found the problem, its a problem with the MCU, in other similar products we don't see the issue.

We will replace the MCU.

BR
Morten