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MMA8652FCR1 Problems with WHO AM I

Question asked by Kevin McDermot on Jul 24, 2017
Latest reply on Jul 24, 2017 by Kevin McDermot



Currently running a MMA8652FCR1 in a prototype system. We are basically looking to validate comms and then configure the device.


We are not getting the expected response from the WHO AM I register reading. I have attached a plot of the comms link. I2C is in normal mode and is operating at 98kHz based on the attached.


We have seen a similar, but incorrect, response from a few devices. Has anyone any experience of this?


Thanks in advance,