cannot clear BBF flag in the MSR of I2C

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cannot clear BBF flag in the MSR of I2C

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Alan_Shen
Contributor I

hello,

I found BBF flag in the MSR of I2C (S32K314)cannot be cleared once it is set. 

I tried to switch SDA and SLC to GPIO mode and pull up, and set the RST flag in MCR. but all failed.

any code can I refer to ?

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

depends which device is holding bus low, anyway you can refer to below thread for more info about bus recovery
https://community.nxp.com/t5/S32K/S32K-IIC-Communication-Error-Recovery/td-p/1618763

BR, Petr

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