how i2c2 is working on udoo neoexternal banks?

hello,

I read https://www.udoo.org/docs-neo/Hardware_&_Accessories/I2C_bus.html document, and in I2C2 section they mention 2 i2c header
J6 ->15 (SDA) 14(SCL)
J5 ->37 (SDA) 36(SCL)

so pin 15-14 working file but when I connect my i2c sensors sda and scl pins to 37 and 36 it not working why??
I used a9 core

 

Good question. I don't know either. Just use the other one (or the pins in the J10 Brick connector)

 

look I share udoo neo schematic
In the J5 section there are no i2c2 pins mention. 36 and 35 pins set as SD4_DA2 or DA3
so I think I should do some pin muxing on this pin for use as i2c?

 

I've spent hours trying to make a display works using the J5 pins hahahaha
Just changed the pins and now it's working!!!
Thanks!

 

@brunotm Just changed the pins means are you used J6 PIns??

 

Yes! If you want to use the J5 ->37 (SDA) 36(SCL), I think you should use the Device Tree Editor.