LPC8xx Self Wakeup Timer (WKT) example

Detailed Description

Example description
The WKT example demonstrates using the Wake-up timer to wake-up the MCU from low power states.
When PIO0_6 pin is set to LOW level, the tests will be executed. The application will demonstrate the following 4 sequential low power states:
MCU_SLEEP,
MCU_DEEP_SLEEP,
MCU_POWER_DOWN,
MCU_DEEP_POWER_DOWN
The Red LED on the board will be toggling before the MCU enters low power state & after it wakes up from the low power state.

Special connection requirements
There are no special connection requirements for this example.

Build procedures:
LPC8xx example quickstart for IAR EWARM
LPC8xx example quickstart for Keil uVision4
LPC8xx example quickstart for Code Red Xpresso

Supported boards and board setup:
NXP Xpresso LPC812 board

Submitting LPCOpen issues:
Community support for LPCOpen

Macros
#define	TICKRATE_HZ   (10)/* 10 tick per second */
#define	WAKEUP_COUNT_5s   (5 * 10000) /* 5 seconds (using 10Khz clock) */

Functions
void	WKT_IRQHandler (void)
	Handle interrupt from Wake-up timer.
int	main (void)
	main routine for wake-up timer example

Macro Definition Documentation

#define TICKRATE_HZ   (10)/* 10 tick per second */

Definition at line 68 of file wkt.c.

#define WAKEUP_COUNT_5s   (5 * 10000) /* 5 seconds (using 10Khz clock) */

Definition at line 70 of file wkt.c.

Function Documentation

int main

(

void

)

main routine for wake-up timer example

Main program body.

Returns

Function should not exit

defined(CHIP_LPC175X_6X)

Definition at line 97 of file wkt.c.

void WKT_IRQHandler

(

void

)

Handle interrupt from Wake-up timer.

Returns

Nothing

Definition at line 88 of file wkt.c.