LPC17xx/40xx RTC example

Detailed Description

Example description
This example shows how to use the RTC, generate periodic interrupts, and use the alarm interrupt.

The RTC is configured to generate an interrupt on each second field register change. An interrupt is also configured when certain alarm field values match the time field values. The LEDs will toggle states based on the RTC events. You can also use a terminal program with the UART to monitor RTC time and events.

Special connection requirements

• Embedded Artists' LPC1788 Developer's Kit:
  
• Embedded Artists' LPC4088 Developer's Kit:
  There are no special connection requirements for this example.
  
• LPCXpresso LPC1769:
  Need to connect with base board for using RS232/UART port.
  

Build procedures:
LPC17xx/40xx example quickstart for Keil uVision4
LPC17xx/40xx example quickstart for IAR EWARM
LPC17xx/40xx example quickstart for Code Red Xpresso

Supported boards and board setup:
Embedded Artists' LPC1788 Developer's Kit
Embedded Artists' LPC4088 Developer's Kit
NXP Xpresso LPC1769 board

Submitting LPCOpen issues:
Community support for LPCOpen

Functions
static void	showTime (IP_RTC_TIME_T *pTime)
void	RTC_IRQHandler (void)
	RTC interrupt handler.
int	main (void)
	Main entry point.

Variables
static volatile bool	fIntervalReached
static volatile bool	fAlarmTimeMatched
static volatile bool	On0
static volatile bool	On1

Function Documentation

int main

(

void

)

Main entry point.

Main program body.

Returns

Nothing

Definition at line 134 of file rtc.c.

void RTC_IRQHandler

(

void

)

RTC interrupt handler.

Returns

Nothing

Definition at line 104 of file rtc.c.

static void showTime ( IP_RTC_TIME_T *  pTime )

static

Definition at line 85 of file rtc.c.

Variable Documentation

volatile bool fAlarmTimeMatched

static

Definition at line 73 of file rtc.c.

volatile bool fIntervalReached

static

Definition at line 72 of file rtc.c.

volatile bool On0

static

Definition at line 74 of file rtc.c.

volatile bool On1

static

Definition at line 74 of file rtc.c.