Hardware requirements

  • Micro USB cable

  • LPCXpresso55S36 board

  • Personal Computer

Board settings

I3C one board:

  • Transfer data from MASTER_BOARD to SLAVE_BOARD of I3C interface, I3C0 pins of MASTER_BOARD are connected with I3C0 pins of SLAVE_BOARD

MASTER_BOARD        CONNECTS TO         SLAVE_BOARD
Pin Name   Board Location     Pin Name   Board Location
P0_9       J9-20              P0_9       J9-20
P0_24      J9-18              P0_24      J9-18
GND        J9-14              GND        J9-14

Connect the jumper resistor R554 2-3.

Prepare the Demo

  1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) 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. Press reset button to begin running the demo.

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.

Start to do I3C master transfer in I3C HDR mode.
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 I3C HDR mode.