Hardware requirements

  • Type-C USB cable

  • MCXW72-LOC Board

  • Personal Computer

Board settings

No special is needed.

Prepare the Demo

  1. Connect a USB cable between the host PC and the LOC board J3.

  2. Open a serial terminal on PC for the 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.

Running the demo

The following lines are printed to the serial terminal when the demo program is executed.

VREF example
ADC Full Range: 65536
Default (Factory) trim value is :15

Use trim value: 0
ADC conversion result: 21607
Expected voltage on VREF_OUT: 1.000V
Actual voltage on VREF_OUT: 1.006V

Use trim value: 1
ADC conversion result: 23732
Expected voltage on VREF_OUT: 1.100V
Actual voltage on VREF_OUT: 1.104V

Use trim value: 2
ADC conversion result: 25934
Expected voltage on VREF_OUT: 1.200V
Actual voltage on VREF_OUT: 1.207V

Use trim value: 3
ADC conversion result: 28097
Expected voltage on VREF_OUT: 1.300V
Actual voltage on VREF_OUT: 1.308V

Use trim value: 4
ADC conversion result: 30306
Expected voltage on VREF_OUT: 1.400V
Actual voltage on VREF_OUT: 1.410V

Use trim value: 5
ADC conversion result: 32433
Expected voltage on VREF_OUT: 1.500V
Actual voltage on VREF_OUT: 1.509V

Use trim value: 6
ADC conversion result: 34704
Expected voltage on VREF_OUT: 1.600V
Actual voltage on VREF_OUT: 1.615V

Use trim value: 7
ADC conversion result: 36801
Expected voltage on VREF_OUT: 1.700V
Actual voltage on VREF_OUT: 1.713V

Use trim value: 8
ADC conversion result: 39008
Expected voltage on VREF_OUT: 1.800V
Actual voltage on VREF_OUT: 1.815V

Use trim value: 9
ADC conversion result: 41139
Expected voltage on VREF_OUT: 1.900V
Actual voltage on VREF_OUT: 1.915V

Use trim value: 10
ADC conversion result: 43264
Expected voltage on VREF_OUT: 2.000V
Actual voltage on VREF_OUT: 2.013V

Use trim value: 11
ADC conversion result: 45413
Expected voltage on VREF_OUT: 2.100V
Actual voltage on VREF_OUT: 2.113V