topic Re: kStatus_LPI2C_ArbitrationLost (error 905) error in i.MX Processors

kStatus_LPI2C_ArbitrationLost (error 905) error

caleb — Thu, 10 Feb 2022 21:41:52 GMT

Note to future me, and anyone else who's getting the kStatus_LPI2C_ArbitrationLost error when attempting to use the I2C Peripheral.

If you're getting this ArbitrationLost error, with the I2C clock and data pins *only* doing a start condition, then immediately failing, it's likely because you don't have the "SoftwareInputOn' mode selected in the IOMUXC.

Re: kStatus_LPI2C_ArbitrationLost (error 905) error

caleb — Thu, 10 Feb 2022 21:43:14 GMT

Make sure you have called

IOMUXC_SetPinMux(IOMUXC_GPIO_11_LPI2C1_SDA, 1U); IOMUXC_SetPinMux(IOMUXC_GPIO_12_LPI2C1_SCL, 1U);

Re: kStatus_LPI2C_ArbitrationLost (error 905) error

SammyP — Sat, 16 Apr 2022 19:26:02 GMT

Thanks for this. I spent a few hours tracing the issue without success until I found this. It's real easy to overlook stuff when setting up basic peripherals on the i.MX because there is just so much stuff to configure.