Hardware requirements

  • Type-C USB cable

  • FRDM-MCXW71 Board

  • Personal Computer

Board settings

Prepare the Demo

  1. Connect a USB cable between the host PC and the FRDM board J10.

  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.

  5. The J12 Pin 1 (ADC0_A6) on EVK board is used to monitor the voltage. The VREFO 1.8v is used as the ADC reference.

Running the demo

The log below shows the output of the demo in the terminal window:

LPADC Temperature Measurement Example
ADC Full Range: 65536
Please press any key to get temperature from the internal temperature sensor.
Current temperature: 22.319
Current temperature: 22.319
Current temperature: 22.319
Current temperature: 22.319
Current temperature: 22.707
Current temperature: 22.707
Current temperature: 22.707
Current temperature: 22.707