how much KOhm is the pullup or pulldown resistor o... - STMicroelectronics Community

Posted on December 02, 2012 at 18:26

typedef enum

{.......

GPIO_Mode_IPD = 0x28,

GPIO_Mode_IPU = 0x48,

......

}GPIOMode_TypeDef;

hello forum,

I have two questions ;

1) do the above settings make the GPIO pin Input ?

2) if I adjust the GPIO pins according to above settings

how much KOhm is the pullup or pulldown resistor of GPIO pins ?

thanks

#gpio-pullup-pulldown

1 REPLY 1

Posted on December 02, 2012 at 18:48

IPU Stands for Input Pulled Up,so yes an input.

The Pull Up/Down value is in the manual, nominally 40K (30-50 across process corners). See ''I/O static characteristics''

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