STM32G070CBT6 0.7V on input pin PD0 with external 10k pullup.

[transistor]

Hello i use STM32G070CBT6 with PD0 and others pins.

PD0 as input pin with no internal pull-up/down with extrenal 10k pullup gives only 0.7V, when i set the pin to output and set state to high there is 3.3V.

Where is the problem?

 

[TDK]

What else is PD0 connected to externally? Show your schematic. Likely something externally is pulling it down. Enable the internal pullup/pulldown to quantify the change in the output level.

[transistor]

 

 

PD1 and PD2 are connected in the same way and they work right.

[gbm]

PD0 is one of UCPD pins. Either connect PD1 to GND or disable the default operation in software. The topic was discussed many times.

[Andrew Neil]

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@gbm wrote:

The topic was discussed many times.

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Indeed.

@transistor - some examples:

https://community.st.com/t5/stm32-mcus-products/stm32g071-portd-pullups/m-p/881555

https://community.st.com/t5/stm32-mcus-products/stm32g0b0-writing-to-pd1-affects-pd0/m-p/699254

[transistor]

I used deactive dead battery pull-up. Thanks for help.