Hardware requirements

• Micro USB cable

• LPCXpresso54628 board

• Personal Computer

Board settings

1. Pin P3_12(j12-9) is used as a CLKOUT signal. Connect this pin to an Oscilloscope for viewing the signal.

Running the demo

The demo sets the MicroTick Timer as a wake up source and puts the device in deep-sleep mode. The MicroTick timer wakes up the device. After wake up the LED3 on the board blinks and a CLKOUT signal can be seen on pin P3_12. The demo is not recommended to use debug mode In MCUXpresso, POWER_EnterDeepSleep () will kill the debug session.