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STM32F765 : default configuration for Wake up pin

chrisPyres66
Associate III

Hello,

I use PA2 pin to wake up from standby mode with a STM32F765 MCU.

I am a bit confused because it is wrotten in HAL Manual (UM1905) at the page 607 : This pin is forced in input pull-down configuration and is active on rising edges.

If i let the pin not connected and whatever the choosen polarity , the mcu is waken up from standby mode without any voltage.

To get worked, I have to solder a pull down resistor at the input.

My problem is i want to be waken up with a uart frame and the default state is high state which gives consumption (1Mohm => 3.3uA).

Could you confirm my tests are ok because i did not find any information in any manual !

Thanks,

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