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I2C pins

Rushit
Associate II

‎2023-06-22 10:42 PM

Hello,

I used STM32L031K6 Nucleo board.

When I Enable I2C it select by default PA10(SDA) & PA9(SCL) pins for Communication it not work, Then I change Pins for I2C PB7(SDA) & PB6(SCL) it work well.

so any additional configurations need for use PA10 & PA9 pins ? 

I2C Config.png

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4 REPLIES 4
Diane POMABIA
ST Employee

‎2023-06-23 05:58 AM

Hi @Rushit 

No additionnal Configuration required.  Can you confirm me that your GPIOs are in pull up mode?

Regards

Diane

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Rushit
Associate II

‎2023-06-25 11:32 PM - edited ‎2023-06-25 11:33 PM

Hi @Diane POMABIA 

Yes I try with software pull-up. But not work. 

 

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Diane POMABIA
ST Employee
In response to Rushit

‎2023-06-26 01:19 AM

Hi @Rushit 

Do you have possibility to share with me screen of SCL and SDA signal ?

Regards

Diane

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Rushit
Associate II
In response to henryrichards

‎2023-06-26 02:28 AM

is it any problem in PA10 & PA9 pins ?

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