Hardware requirements

• Micro USB cable

• MCIMX7ULP-EVK board

• J-Link Debug Probe

• 5V power supply

• Oscilloscope or voltmeter

• Personal Computer

Board settings

No special settings are required.

Please note this application can’t support running with Linux BSP!

Prepare the Demo

1. Connect 5V power supply and J-Link Debug Probe to the board, switch SW1 to power on the board.

2. Connect a micro USB cable between the host PC and the J6 USB port on the target board.

3. Open a serial terminal with the following settings:

   • 115200 baud rate

   • 8 data bits

   • No parity

   • One stop bit

   • No flow control

4. Download the program to the target board.

5. Either press the reset button on your board or launch the debugger in your IDE to begin running the example.

Running the demo

When the example runs successfully, the following message is displayed in the terminal: If you press the VOL+, the “VOL+ is pressed” is shown on the terminal window. If no LED is connected to the pin on the board, please use one oscilloscope or voltmeter to touch the J11-1 then you can see the voltage change when press the VOL+.

 GPIO Driver example


 Press VOL+ to turn on/off a LED

 VOL+ is pressed
 ......