Linux/AM3358: I2C1 Not working properly in uboot and Linux

sarfaraz shaikh

Part Number: AM3358

Tool/software: Linux

We have a custom board. we can power 2 ways like in beaglebone black .via USB and direct DC voltage.

Now the issue is from uboot when I probe i2c dev 1

when the board is connected on USB power I can communicate to the I2C dev on bus 1 but when I connect the board on DC power then I am unable to connect to I2C dev 1 . The I2C slave is not detected when on DC power and it gets detected when on USB.

Same is the case with Linux

Thanks,

over 6 years ago

0 Yordan Kovachev over 6 years ago

TI__Guru**** 161600 points

Hi,

Is it possible to share the relevant part of the schematic?
This is not observed on BBB. Also which Processor SDK Linux version are you using?

Best Regards,
Yordan

0 sarfaraz shaikh over 6 years ago in reply to Yordan Kovachev

Expert 1536 points

I investigated and found that the issue was with my hardware.

Thanks,

0 Yordan Kovachev over 6 years ago in reply to sarfaraz shaikh

TI__Guru**** 161600 points

Thanks for the update. I am closing this thread.

Best Regards,
Yordan

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Linux/AM3358: I2C1 Not working properly in uboot and Linux