MCUXpresso SDK Documentation
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Hardware requirements

Hardware requirements#

  • Type-C USB cable

  • FRDM-MCXL255 board

  • Personal Computer

Board settings#

LPI2C:

             MASTER(I2C0)       connect to      SLAVE(I2C0)
Pin Name     Board Location     Pin Name        Board Location
LPI2C0_SCL   J5-5               LPI2C0_SCL      J5-5
LPI2C0_SDA   J5-6               LPI2C0_SDA      J5-6
GND          J5-8               GND             J5-8

Make sure you have solder bridges SJ1 and SJ2 set to

  • 2-1 for the main core (cm33)

Prepare the Demo#

  1. Connect a USB Type-C cable between the host PC and the MCU-Link USB port (J16) on the target 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. 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.

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 .
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