This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Hardware requirements

  • Type-C USB cable

  • FRDM-MCXN947 board

  • Personal Computer

  • USB to TTL converter

Board settings

Connect the USB to TTL converter to FRDM-MCXN947 board. FRDM-MCXN947 UART pins:

  • TX of USB2COM to J8-9(P0_12)

  • RX of USB2COM to J8-12(P0_13)

Prepare the Demo

Note: MCUXpresso IDE project default debug console is semihost

  1. Connect a type-c USB cable between the PC host and the MCU-Link USB port (J17) on the board

  2. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 7 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 interrupt example with seven data bits
Board receives 8 characters then sends them out
Now please input: