Hardware requirements

• Type-C USB cable

• FRDM-MCXL255 board

• Personal Computer

Board settings

Make sure you have solder bridges SJ1 and SJ2 set to

• 2-1 for the main core (cm33)

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

The following lines are printed to the serial terminal when the demo program is executed. If you press the SW2, then ‘SW2 is pressed’ is shown on the terminal window.

Press SW2 to turn on/off a LED
SW2 is pressed
SW2 is pressed