STM32 MCUs Boards and hardware tools

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STM32L412RBT, IO damaged very easily?

Hi, I'm using STM32L412RBT, LQFP64pin. As the attached schematic, we are using some GPIO's as BTN inputs. But, unfortunately, the GPIO got damaged very easily without special reason. The pin voltage stuck at 1.0 ~ 1.7V when the button is not presse...

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taz1000 by Associate III
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Hi,I am using STM32L431CCT6 MCU in my design. I have space limitation on my PCB and did not place pull up/pull down resistors on unused pins. Is there a problem? What is the recommendation here?

 My boot up time is about 30mSec. I would like to know how the pins behave during boot up. Does it behave as high impedance i/p or as o/p sourcing/sinking current? In my design I am shorting two IO pins. Is there a chance during boot up one can sourc...

SG.13 by Associate
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