iMX8-MP I2C (Master) to Kinetis (MK81) I2C (Slave) unable to see slave address in i2cdetect

[Thiru_S]

Dear Team,

We have iMX8 I2C (Master) is conencted to Kinetis (MK81) I2C  (Slave),

K81 I2C is configured as a slave device (0x70). But unable to see the K81 slave address in iMX8 side using i2cdetect command, which is running with Yocto linux.

Note: iMX8 I2C port is I2C-3, MK81 I2C port is I2C0.

Please help me to access the K81 slave address in iMX8 side.

Thank you.

Kind Regards,

Thiru.

[brian14]

Hi @Thiru_S, 

Could you please share your command?

It is possibly related to the port you are trying to read please try port 2.
The I2C ports in Linux are enumerated as 0, 1, 2 ... and for the board are enumerated as 1, 2, 3 ...

I hope this information will be helpful. 

Have a great day!