I3C problem on MIMXRT685-EVK

[Srukonja]

Hello,

I'm using an MIMXRT685-EVK with the RT600 I3C Simple Master (REV 1) AN1279 example.

I'm encountering an false detection of SDA 'low' state after the Initialization. I've attached oscilloscope probe on the SDA pin and the pin is in 'high' state all the time.

There is an I3C --> MSTATUS --> STATE register showing otherwise and to be exact: SLVREQ

Reseting the error and status flags only clears the SLVSTART flag.

Is there an known issue on this dev. board or chip?

Any advice would suffice! Thx!

Mario

[Srukonja · Accepted solution]

PROBLEM SOLVED!

There was an issue with the pin initialization on my behalf, in the manner that the init function was skipped at boot.