STSPIN32F0251 J6 J7 J8 Used to select Hall 2-3 or sensorless 2-4. What is 2-1 for ? What U3 used for.

[ADani.2]

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[Laurent Ca...]

Dear @ADani.2​ 

Dead you have a look on the datasheet?

https://www.st.com/resource/en/datasheet/stspin32f0251.pdf

Best regards

==

Laurent Ca...

[ADani.2]

I looked at data sheet.

Can not understand  What is 2-1 for ? What U3 used for.

Thank you,