MCUXpresso SDK Documentation

gpio_1_led_output

gpio_1_led_output#

Overview#

The GPIO Example project is a demonstration program that uses the KSDK software to manipulate the general-purpose outputs. The example is supported by the set, clear, and toggle write-only registers for each port output data register. The example take turns to shine the LED.

Supported Boards#

FRDM-KE02Z40M
Hardware requirements
  • Mini USB cable

  • FRDM-KE02z40m 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:

GPIO Driver example
The LED is blinking.

And you will find the LED RED is taking turns to shine.