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FXAS21002 gives WHO_AM_I as 0

Question asked by Efthymios Kalyviotis on Oct 8, 2017
Latest reply on Oct 9, 2017 by Efthymios Kalyviotis

Hello.

I am querying the FXAS21002 gyro via I2C interface for the WHO_AM_I register. I don't seem to get any result other than 0. Following is a screen shot from the logic analyzer.

What seems to me slightly strange is that after the 9th bit (the ACK) get transmitted, the SDA doesn't go high for some period of time before the address of the register gets transmitted. Is it possible that this is the problem I am facing?

 

If not, what might be the problem?

 

Thank you very much in advance.

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