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

  • Mini/Micro USB cable

  • FRDM-K32L2A4S board

  • Voltmeter

  • Personal Computer

Board settings

To measure the DAC output, connect J4-11 to positive of Voltmeter

Prepare the Demo

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

  2. Open a serial terminal on PC for OpenSDA serial device with these 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.

  5. A multimeter may be used to measure the DAC output voltage.

Running the demo

When the demo runs successfully, the log would be seen on the OpenSDA terminal like:

DAC basic Example.
Please input a value (0 - 4095) to output with DAC: 200
Input value is 200
DAC out: 200

Then user can measure the DAC output pin to check responding voltage.