Hardware requirements

  • Mini/micro USB cable

  • FRDM_K22F board

  • Personal Computer

Board settings

This example project does not call for any special hardware configurations. Although not required, the recommendation is to leave the development board’s jumper settings and configurations in default state when running this example.

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 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 example.

Running the demo

These instructions are displayed/shown on the terminal window:

FTM example to output combined complementary PWM signals on two channels

You will see a change in LED brightness if an LED is connected to the FTM pin
If no LED is connected to the FTM pin, then probe the signal using an oscilloscope

  • Red led and green led will change brightness.