I3C demo for ICM-42688 not working on LCPXpresso860MAX

[tinmancp]

Using the SDK 2.16 with MCUXpresso V11.10, the master_read_sensor_icm42688p is not working.  When run is attempted, in the terminal window, only the following is shown:

     I3C master read sensor data example.

     I3C master do dynamic address assignment to the sensor slave.

In the i3c_master_read_sensor_icm42688p.c, the line 228 is causing the main() to jump to an infinite loop due to result having the value of 0x1EDE (7902)

     if (result != kStatus_Success)

Tracing back up, it would appear the line is the generating the bad value:
result = I3C_WriteSensor(0x7E, 0x06, NULL, 0);

Is there something special that need to be done on the LCPXpresso860MAX board or some special configuration that need to be set within MCUXpresso?

[Harry_Zhang]

Hi @tinmancp 

If you use the LCPXpresso860MAX board,

There is no ICM-42688-P (DNP)on the board.

The schematic shows  ICM-42688-P as DNP.

So I3C demo for ICM-42688 not working on LCPXpresso860MAX.

Hope this will help you.

BR

Hang

[tinmancp]

Fair enough.

It may be a good idea to either update the readme.md or C file stating the ICM42688P needs to be populated for the demo to work.  Or better yet, provide a different SKU where the ICM42688P is populated.

[Harry_Zhang]

Hi @tinmancp 

Thank you for your suggestion. I will report it to the SDK team.

BR

Hang

[tinmancp]

It doesn't appear to be a hardware issue.  Running the i3c_polling_b2b_transfer_master and i3c_polling_b2b_transfer_slave, the output to the terminals show the I3C is working as expected.