MCUXpresso SDK Documentation

Hardware requirements#

  • Mini USB cable

  • USB to TTL converter

  • FRDM-MCXC242 board

  • Personal Computer

Board settings#

Connect the USB to TTL converter to FRDM-MCXC242 board. FRDM-MCXC242 UART pins:

  • TX of USB2COM to J1-5

  • RX of USB2COM to J1-7

  • GND of USB2COM to J2-14

Prepare the Demo#

  1. Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.

  2. Connect the USB to TTL converter to PC host.

  3. Open a serial terminal on PC for the USB to TTL converter with these settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  4. Download the program to the target board.

  5. Reset the SoC and run the project.

Running the demo#

When the demo runs successfully, the log would be seen on the UART Terminal port which connected to the USB2COM like:

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