Hardware requirements

• Type-C USB cable

• MCX-W71-EVK Board

• Personal Computer

Board settings

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

EVK board:

MASTER(I3C0)                  connect to        SLAVE(I3C0)
Pin Name    Board Location                      Pin Name    Board Location
SCL         J2  pin 1                           SCL         J2  pin 1
SDA         J2  pin 3                           SDA         J2  pin 3
GND         J2  pin 7                           GND         J2  pin 7

Other jumpers keep default configuration.

Prepare the Demo

1. Connect a USB cable between the host PC and the EVK board J14.

2. Open a serial terminal on PC for the serial device with these settings:

   • 115200 baud rate

   • 8 data bits

   • No parity

   • One stop bit

   • No flow control

3. Download the program to the target board.

4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

The following lines are printed to the serial terminal when the demo program is executed.

I3C board2board polling example -- Slave transfer.

Check I3C master I2C transfer.
Slave received data :
0x 1  0x20  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 I2C transfer finished.

Check I3C master I3C SDR transfer.
Slave received 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  
I3C master I3C SDR transfer finished.

Check I3C master I3C HDR transfer.
Slave received 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  
I3C master I3C HDR transfer finished.