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

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. Boot Linux BSP to u-boot, and load M core image from SD card to run. (Put the image into SD card before.) => load mmc 1:1 0x80000000 /sdk20-app.bin => cp.b 0x80000000 0x201e0000 0x20000 => bootaux 0x1ffe0000 0

Running the demo

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

LPI2C board2board EDMA example -- Slave 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

End of LPI2C example .