pcf8563t.c

AVR单片机读写实时时钟芯片PCF8563源程序

/*****************************************************
	深圳市普泰科技公司 	http://www.pt-star.com
	深圳职业技术学院	http://www.szpt.edu.cn

功能目的:   I2C实时时钟示例程序

目标系统:   基于ATmega16L单片机

时钟频率：  1.000000 MHz

内存模式：  Small

外部存储器容量：0

数据堆栈容量：256

应用软件:   CodeWizardAVR V1.24.7e Standard                                               

版    本:   Version 1.0

时    间：  2006-08-01

作者:       LEE

说    明:   若用于商业用途，请保留此段文字或注明代码来源 

	深 圳 市 普 科 技 公 司 保 留 所 有 的 版 权
*********************************************************************/

#include <mega16.h>

// I2C Bus functions
#asm
   .equ __i2c_port=0x15 ;PORTC
   .equ __sda_bit=1
   .equ __scl_bit=0
#endasm
#include <i2c.h>

// PCF8563 Real Time Clock functions
#include <pcf8563.h>

// Alphanumeric LCD Module functions
#asm
   .equ __lcd_port=0x18 ;PORTB
#endasm
#include <lcd.h>

unsigned int year;
unsigned char date, month;
unsigned char hour, min,sec ;

void main(void)
{
// Declare your local variables here

// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTA=0x00;
DDRA=0x00;

// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTB=0x00;
DDRB=0x00;

// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTC=0x00;
DDRC=0x00;

// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTD=0x00;
DDRD=0x00;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

// I2C Bus initialization
i2c_init();

// PCF8563 Real Time Clock initialization
// Timer interrupt: Off
// Alarm interrupt: Off
// /INT pin pulses: Off
// CLKOUT pin frequency: 32768Hz
// Timer: Off
rtc_init(0,RTC_CLKOUT_32768,RTC_TIMER_OFF);

// LCD module initialization
lcd_init(8);  
rtc_set_date(1, 9, 06)  ;
rtc_set_time(0x12, 0, 0)  ;

	

while (1)
      {
      rtc_get_date(&date, &month, &year)  ;
      rtc_get_time(&hour, &min, &sec)      ;
      lcd_gotoxy(0,0);
      lcd_putchar((year%100)/10+0x30);
	  lcd_putchar(year%10+0x30);
	  lcd_putchar('-'); 
	  lcd_putchar(month/10+0x30);
	  lcd_putchar(month%10+0x30);
	  lcd_putchar('-'); 
	  lcd_putchar(date/10+0x30);
	  lcd_putchar(date%10+0x30);
	  lcd_gotoxy(0,1);
      lcd_putchar(hour/10+0x30);
	  lcd_putchar(hour%10+0x30);
	  lcd_putchar(':'); 
	  lcd_putchar(min/10+0x30);
	  lcd_putchar(min%10+0x30); 
	  lcd_putchar(':'); 
	  lcd_putchar(sec/10+0x30);
	  lcd_putchar(sec%10+0x30);
	    

      };
}