This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Hardware requirements

  • Micro USB cable

  • MIMXRT685-AUD-EVK board

  • Personal Computer

Board settings

Prepare the Demo

  1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) on the board

  2. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board.

  4. Launch the debugger in your IDE to begin running the demo.

Running the demo

The log below shows the output of the example in the terminal window. You could tap the sensor on board(U7) and see sensor read stops, each tap will generate a new IBI data print log “Received slave IBI request.”.

I3C master read sensor data example.

I3C master do dynamic address assignment to the sensor slave.
I3C master dynamic address assignment done, sensor address: 0x 8.

Sensor reset is done, re-assgin dynamic address.
I3C master dynamic address assignment done, sensor address: 0x 8.

Sensor Data: ACCEL X 11, Y -4, Z 2077; GYRO X -23, Y -36, Z 1171.
Sensor Data: ACCEL X 11, Y -2, Z 2075; GYRO X -23, Y -36, Z 1171.
Sensor Data: ACCEL X 15, Y -2, Z 2072; GYRO X -11, Y -17, Z 878.
Sensor Data: ACCEL X 17, Y -3, Z 2070; GYRO X 16, Y 9, Z 139.
......