Up Board (Not UP2) I2C can not be set at 100KHz

JeromeStCyr

Hi all,
I changed the speed of my I2C (I2C-5 or hardware I2C-1) in the bios from 400 KHz to 100 KHz and changed the mode from ACPI to PCI. I still have my I2C at 400 KHz when I probe. I tested it with 4 Up Board. It worked only for one of them. Can anyone help me?

mdostie

I don't think anybody knows the answer.

Dan O'Donovan

Hi folks
We've just published some Ubuntu and Yocto kernel updates to enable this option for the UP board. After updating your kernel, changing the speed in the BIOS menu should now take effect.
Best regards,
-Dan