Hardware requirements

  • USB Type-C cable

  • MCIMX93-EVK board

  • Personal Computer

Board settings

To make the example work, connections needed to be as follows:

MASTER                        connect to        SLAVE
Pin Name    Board Location                      Pin Name    Board Location
SCL         J1005 pin 3                         SCL         J1005 pin 3
SDA         J1005 pin 5                         SDA         J1005 pin 5
GND         J1005 pin 7                         GND         J1005 pin 7

Note

Please run the application in Low Power boot mode (without Linux BSP). The IP module resource of the application is also used by Linux BSP. Or, run with Single Boot mode by changing Linux BSP to avoid resource conflict.

Prepare the Demo

  1. Connect 12V~20V power supply and JLink Plus to the board, switch SW301 to power on the board

  2. Connect a USB Type-C cable between the host PC and the J1401 USB port on the target board.

  3. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  4. Download the program to the target board.

  5. Either re-power up your board or launch the debugger in your IDE to begin running the demo.

Tips: The I3C use the same PHY pin as LPI2C, Acore already use the i2c resource. Please test the function in “LOW POWER MODE” only.

Running the demo

The following message shows in the terminal if the example runs successfully.

I3C board2board polling example -- Master transfer.

Start to do I3C master transfer in I2C mode.
Master will send data :
0x 0  0x 1  0x 2  0x 3  0x 4  0x 5  0x 6  0x 7
0x 8  0x 9  0x a  0x b  0x c  0x d  0x e  0x f
0x10  0x11  0x12  0x13  0x14  0x15  0x16  0x17
0x18  0x19  0x1a  0x1b  0x1c  0x1d  0x1e  0x1f

Receive sent data from slave :
0x 0  0x 1  0x 2  0x 3  0x 4  0x 5  0x 6  0x 7
0x 8  0x 9  0x a  0x b  0x c  0x d  0x e  0x f
0x10  0x11  0x12  0x13  0x14  0x15  0x16  0x17
0x18  0x19  0x1a  0x1b  0x1c  0x1d  0x1e  0x1f


I3C master transfer successful in I2C mode .

I3C master do dynamic address assignment to the I3C slaves on bus.

I3C master dynamic address assignment done.

Start to do I3C master transfer in I3C SDR mode.

I3C master transfer successful in I3C SDR mode .