I2C deadlock imx6 imx8

[dhty2015]

Hi,All

I used the board customized by imx8mq and developed the code from imx8mq_evk.Encountered a problem: reboot when the i2c SDA pulled down after failed to restore the i2c lethal lock.

I observed the board of imx8mq_evk, and there was no reset pin of PTN5110.So how does it avoid this problem?Did you control the power?

thank you so mach~~

[igorpadykov]

Hi dhty2015

could you try to reproduce issue on i.MX8M EVK reference board with Demo Images from

i.MX Software | NXP 

it should not lock as board was designed to remove power (voltage source) to all

components on the board in the event of a processor reset.

Best regards
igor
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[dhty2015]

我现在在uboot中控制了与之相关的电源，复位时，会局部重上电。这样问题就解决了。

感谢你的回复！