This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Hardware requirements

• Mini/micro USB cable

• LPCXpresso55S36 board

• Personal Computer

Board settings

(pmux)VREF connect to 1.6V (3.3V * 15 /31). (nmux)J44-21(PIO1_14).

Prepare the Demo

1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) on the board.

2. Open a serial terminal on PC for OpenSDA 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. Reset the SoC and run the project.

Running the demo

When the demo runs successfully, the log would be seen on the terminal like:

CMP interrupt driver example. RED LED turn on.(pmux > nmux). RED LED turn off.(pmux < nmux).