utick_wakeup_peripheral#
Overview#
The purpose of this demo is to show wakeup from deep sleep mode using MicroTick timer. 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. The code of this demo has been prepared and updated for use with the MCUXpresso Configuration Tools (Pins/Clocks/Peripherals).
Supported Boards#
LPCXpresso51U68
Hardware requirements
Mini/micro USB cable
LPCXpresso51U68 board
Personal Computer
Board settings
Pin P0_21 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 Green LED on the board blinks and a CLKOUT signal can be seen on pin P0_21.
LPCXpresso54628
Hardware requirements
Micro USB cable
LPCXpresso54628 board
Personal Computer
Board settings
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.