Hardware requirements

• Type-C USB cable

• FRDM-MCXL255 board

• Personal Computer

Board settings

Make sure you have solder bridges SJ1, SJ2, SJ6 and SJ20 set to

• 2-1 for the main core (cm33)

• 2-3 for AON core (cm0+)

Prepare the Demo

Note: MCUXpresso IDE project default debug console is semihost

1. Connect a Type-C USB cable between the host PC and the MCU-Link 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

When the demo runs successfully, the log would be seen on the MCU-Link terminal like:

Lpuart functional interrupt example
Board receives characters then sends them out
Now please input: