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YBAYR.1
Associate III
October 24, 2023
Solved

How to make standby mode pin stay low

I am using stm32f302r8t6 microcontroller. In standby mode, the pins on port A are high, which should not be the case for the card I designed. For the stm32f302r8t6 microcontroller, I should keep one pin on port A low in standby mode.

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TDK
TDKBest answer
October 24, 2023

In standby mode, almost all pins are high impedance. You need an external resistor to give the pin a defined state when in standby mode.

TDK_0-1698167019937.png

If it's the WKUP pin, you can configure it to have a pulldown.

 

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4 replies

TDK
TDKBest answer
October 24, 2023

In standby mode, almost all pins are high impedance. You need an external resistor to give the pin a defined state when in standby mode.

TDK_0-1698167019937.png

If it's the WKUP pin, you can configure it to have a pulldown.

 

"If you feel a post has answered your question, please click ""Accept as Solution""."
YBAYR.1
YBAYR.1Author
Associate III
October 25, 2023

Is there any way I can keep the a11 and a12 pin low? without making any hardware changes

for microcontroller stm32f302r8t6 


Thank you for your answer..

TDK
October 25, 2023

They aren't WKUP pins, so no.

"If you feel a post has answered your question, please click ""Accept as Solution""."