2021-07-27 12:51 AM
are the GPIOs at HI-z? pulled up? or Pulled down?
this is very important to me, I don't want to enable any circuit at start up.
2021-07-27 07:13 AM
Generally, they are in high impedance mode with no pullup/pulldown. Pins used for SWD/JTAG programming are the exception. The reference manual will provide this information in the GPIO registers section.
2021-07-28 09:51 PM
I tried to find it at the datasheet or application note, nothing about it.
where can I find explanation about it?
2021-07-29 12:37 AM
As TDK said:
The reference manual will provide this information in the GPIO registers section.
JW
2021-08-04 04:05 AM
Hi @IGAL TALOR ,
The application note STM32 GPIO configuration for hardware settings and low-power consumption (AN4899) should be useful for you.
-Amel
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