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

JeromeStCyr
JeromeStCyr New Member Posts: 1 ✭
edited November 2019 in UP board BIOS

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?

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  • mdostie
    mdostie New Member Posts: 4 ✭

    I don't think anybody knows the answer.

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  • Dan O'Donovan
    Dan O'Donovan Administrator, Moderator, Emutex Posts: 241 admin

    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

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