Real Time Counter Example Application main file. More...

Macros
#define	GPIO_TOGGLE_TICK_EVENT (8)

#define	GPIO_TOGGLE_COMPARE_EVENT (9)

#define	LFCLK_FREQUENCY (32768UL)

#define	RTC_FREQUENCY (8UL)

#define	COMPARE_COUNTERTIME (3UL)

#define	COUNTER_PRESCALER ((LFCLK_FREQUENCY/RTC_FREQUENCY) - 1) /* f = LFCLK/(prescaler + 1) */

Functions
static void	lfclk_config (void)
	Function starting the internal LFCLK XTAL oscillator.

static void	rtc_config (void)
	Function for configuring the RTC with TICK to 100Hz and COMPARE0 to 10 sec.

static void	gpio_config (void)
	Function for Configuring PIN8 and PIN9 as outputs.

void	RTC0_IRQHandler ()
	: Function for handling the RTC0 interrupts. Triggered on TICK and COMPARE0 match.

int	main (void)
	Function for application main entry.

Detailed Description

This file contains the source code for a sample application using the Real Time Counter (RTC).

Use board setup A for this example.

Macro Definition Documentation

#define GPIO_TOGGLE_TICK_EVENT (8)

Pin number to toggle when there is a tick event in RTC.

#define GPIO_TOGGLE_COMPARE_EVENT (9)

Pin number to toggle when there is compare event in RTC.

#define LFCLK_FREQUENCY (32768UL)

LFCLK frequency in Hertz, constant.

#define RTC_FREQUENCY (8UL)

Required RTC working clock RTC_FREQUENCY Hertz. Changable.

#define COMPARE_COUNTERTIME (3UL)

Get Compare event COMPARE_TIME seconds after the counter starts from 0.