40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
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.
|
||
|
||
Toolchain supported
|
||
===================
|
||
- IAR embedded Workbench 9.20.2
|
||
- Keil MDK 5.36
|
||
- GCC ARM Embedded 10.3.1
|
||
- MCUXpresso 11.5.0
|
||
|
||
Hardware requirements
|
||
=====================
|
||
- Micro USB cable
|
||
- LPCXpresso55s69 board
|
||
- Personal Computer
|
||
|
||
Board settings
|
||
==============
|
||
1. Pin P19_2 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 sleep mode.
|
||
The MicroTick timer wakes up the device.
|
||
|
||
After wake up：
|
||
|
||
(1)the red LED on the board blinking.
|
||
(2)CLKOUT signal changing can be seen on pin P19_2.And the frequency of output signal will double.
|
||
|
||
If the demo run successfully, you will see the log from debug console:
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
Utick wakeup demo start...
|
||
Wakeup from sleep mode...
|
||
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|