Hardware requirements

• USB Type-C cable

• two MCIMX93AUTO-EVK boards

• J-Link Debug Probe

• 12V~20V power supply

• Personal Computer

Board settings

Connection as below:

MASTER(LPI2C1)                connect to        SLAVE(LPI2C1)
Pin Name    Board Location                      Pin Name    Board Location
SCL         J17 pin 16                          SCL         J17 pin 16
SDA         J17 pin 18                          SDA         J17 pin 18
GND         J17 pin 29                          GND         J17 pin 29

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 J-Link Debug Probe to the board, switch SW2 to power on the board.

2. Connect a USB Type-C cable between the host PC and the J26 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 example

Running the demo

When the example runs successfully, the following message is displayed in the terminal:

LPI2C board2board polling example -- Master transfer.
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  


End of LPI2C example .