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STM32L0 GPIOA_MODER A4 default value

Uwe Bonnes
Principal III
Posted on January 06, 2015 at 11:20

Hello,

the STM32L0 series sets nearly all GPIO to analog mode as default. This does make sense opposed to the ''default to input'' on other family that may result in high current draw with floating inputs. Only Port A pin 4, 13 and 14 have other defaults. For pin 13 and 14 this is for the SWD function. However I don't see why PA4 is treated different than the rest of the pins?

Any explanation?

#stm32l0 #gpioa4-default-mode
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