pcf8563new.i

PCF8563的驱动程序

#pragma used+
sfrb TWBR=0;
sfrb TWSR=1;
sfrb TWAR=2;
sfrb TWDR=3;
sfrb ADCL=4;
sfrb ADCH=5;
sfrw ADCW=4;      
sfrb ADCSRA=6;
sfrb ADMUX=7;
sfrb ACSR=8;
sfrb UBRRL=9;
sfrb UCSRB=0xa;
sfrb UCSRA=0xb;
sfrb UDR=0xc;
sfrb SPCR=0xd;
sfrb SPSR=0xe;
sfrb SPDR=0xf;
sfrb PIND=0x10;
sfrb DDRD=0x11;
sfrb PORTD=0x12;
sfrb PINC=0x13;
sfrb DDRC=0x14;
sfrb PORTC=0x15;
sfrb PINB=0x16;
sfrb DDRB=0x17;
sfrb PORTB=0x18;
sfrb PINA=0x19;
sfrb DDRA=0x1a;
sfrb PORTA=0x1b;
sfrb EECR=0x1c;
sfrb EEDR=0x1d;
sfrb EEARL=0x1e;
sfrb EEARH=0x1f;
sfrw EEAR=0x1e;   
sfrb UBRRH=0x20;
sfrb UCSRC=0X20;
sfrb WDTCR=0x21;
sfrb ASSR=0x22;
sfrb OCR2=0x23;
sfrb TCNT2=0x24;
sfrb TCCR2=0x25;
sfrb ICR1L=0x26;
sfrb ICR1H=0x27;
sfrb OCR1BL=0x28;
sfrb OCR1BH=0x29;
sfrw OCR1B=0x28;  
sfrb OCR1AL=0x2a;
sfrb OCR1AH=0x2b;
sfrw OCR1A=0x2a;  
sfrb TCNT1L=0x2c;
sfrb TCNT1H=0x2d;
sfrw TCNT1=0x2c;  
sfrb TCCR1B=0x2e;
sfrb TCCR1A=0x2f;
sfrb SFIOR=0x30;
sfrb OSCCAL=0x31;
sfrb OCDR=0x31;
sfrb TCNT0=0x32;
sfrb TCCR0=0x33;
sfrb MCUCSR=0x34;
sfrb MCUCR=0x35;
sfrb TWCR=0x36;
sfrb SPMCR=0x37;
sfrb TIFR=0x38;
sfrb TIMSK=0x39;
sfrb GIFR=0x3a;
sfrb GICR=0x3b;
sfrb OCR0=0X3c;
sfrb SPL=0x3d;
sfrb SPH=0x3e;
sfrb SREG=0x3f;
#pragma used-

#asm
	#ifndef __SLEEP_DEFINED__
	#define __SLEEP_DEFINED__
	.EQU __se_bit=0x40
	.EQU __sm_mask=0xB0
	.EQU __sm_powerdown=0x20
	.EQU __sm_powersave=0x30
	.EQU __sm_standby=0xA0
	.EQU __sm_ext_standby=0xB0
	.EQU __sm_adc_noise_red=0x10
	.SET power_ctrl_reg=mcucr
	#endif
#endasm

typedef char *va_list;

#pragma used+

char getchar(void);
void putchar(char c);
void puts(char *str);
void putsf(char flash *str);

char *gets(char *str,unsigned int len);

void printf(char flash *fmtstr,...);
void sprintf(char *str, char flash *fmtstr,...);
void snprintf(char *str, unsigned int size, char flash *fmtstr,...);
void vprintf (char flash * fmtstr, va_list argptr);
void vsprintf (char *str, char flash * fmtstr, va_list argptr);
void vsnprintf (char *str, unsigned int size, char flash * fmtstr, va_list argptr);
signed char scanf(char flash *fmtstr,...);
signed char sscanf(char *str, char flash *fmtstr,...);

#pragma used-

#pragma library stdio.lib

#pragma used+

void delay_us(unsigned int n);
void delay_ms(unsigned int n);

#pragma used-

#asm
   .equ __i2c_port=0x15 ;PORTC
   .equ __sda_bit=1
   .equ __scl_bit=0
#endasm

#pragma used+
void i2c_init(void);
unsigned char i2c_start(void);
void i2c_stop(void);
unsigned char i2c_read(unsigned char ack);
unsigned char i2c_write(unsigned char data);
#pragma used-

unsigned  char  read_flag=0;
unsigned  char  get_time[8];         
unsigned  char  num[]="0123456789";
unsigned  char  fuhao[]="-";

unsigned  char         time[]=" Time: ";
unsigned  char        space[]="         ";
unsigned  char          zyi[]="Monday   ";
unsigned  char          zer[]="Tuesday  ";
unsigned  char         zsan[]="Wednesday";
unsigned  char          zsi[]="Thursday ";
unsigned  char          zwu[]="Friday   ";
unsigned  char         zliu[]="Saturday ";
unsigned  char          zmo[]="Sunday   ";

void put_s_no_enter(unsigned char *ptr)
{
while(*ptr)
{
putchar(*ptr++);
}
}

void Set_control(void)
{
i2c_start();
i2c_write(0xA2);  
i2c_write(0x01);
i2c_write(0x01);  
i2c_stop();
}

void  Set_timer(void)
{
i2c_start();
i2c_write(0xA2);  
i2c_write(0x0E);    
i2c_write(0x82);    
i2c_write(0x01);    
i2c_stop();
}

void Read_clock(unsigned char *p)
{
int i;
i2c_start();
i2c_write(0xA2);    
i2c_write(0x02);    
i2c_start();
i2c_write(0xA3);    
for (i=0;i<6;i++)
*(p+i) =i2c_read(1);
*(p+i) =i2c_read(0            );
i2c_stop();
}

void Set_clock()
{
i2c_start();
i2c_write(0xA2);
i2c_write(0x02);
i2c_write(0x00);
i2c_write(0x01);
i2c_write(0x14);
i2c_write(0x26);
i2c_write(0x04);
i2c_write(0x03);
i2c_write(0x09);
i2c_stop();
}

void pcf8563(void)
{

unsigned char  shiwei ,gewei ,value;                   

value=get_time[2];   
value=value>>4;
value=value&0x03;
shiwei=num[value];
putchar(shiwei);
value=get_time[2];
value=value&0x0f;
gewei=num[value]; 
putchar(gewei);
putchar(':');

value=get_time[1];   
value=value>>4;
value=value&0x07;
shiwei=num[value];
putchar(shiwei) ;
value=get_time[1];
value=value&0x0f;
gewei=num[value]; 
putchar(gewei);
putchar(':');

value=get_time[0];   
value=value>>4;
value=value&0x07;
shiwei=num[value];
putchar(shiwei) ;
value=get_time[0];
value=value&0x0f;
gewei=num[value]; 
putchar(gewei);

put_s_no_enter(fuhao);  

value=get_time[6];   
value=value>>4;
value=value&0x0f;
shiwei=num[value];
putchar(shiwei) ;
value=get_time[6];
value=value&0x0f;
gewei=num[value]; 
putchar(gewei);
putchar('/');

value=get_time[5];   
value=value>>4;
value=value&0x01;
shiwei=num[value];
putchar(shiwei) ;
value=get_time[5];
value=value&0x0f;
gewei=num[value]; 
putchar(gewei);
putchar('/');

value=get_time[3];   
value=value>>4;
value=value&0x03;
shiwei=num[value];
putchar(shiwei) ;
value=get_time[3];
value=value&0x0f;
gewei=num[value]; 
putchar(gewei);

put_s_no_enter(fuhao);  

value=get_time[4];   
value=value&0x07;
switch (value)
{
case 0 :  put_s_no_enter(zmo);break ;
case 1 :  put_s_no_enter(zyi);break ;
case 2 :  put_s_no_enter(zer);break ;
case 3 :  put_s_no_enter(zsan);break ;
case 4 :  put_s_no_enter(zsi);break ;
case 5 :  put_s_no_enter(zwu);break ;
case 6 :  put_s_no_enter(zliu);break ;
default :  put_s_no_enter(space);
}  
}

void send_data(void)
{                                 
put_s_no_enter(time)  ;  
pcf8563()              ;  
}

interrupt [3] void ext_int1_isr(void)
{

PORTA.2=!PORTA.2;
read_flag=1;
}

interrupt [9] void timer1_ovf_isr(void)
{

PORTA.1=!PORTA.1;
}

void main(void)
{

PORTA=0x00;
DDRA=0x0F;

PORTB=0x00;
DDRB=0x00;

PORTC=0x00;
DDRC=0x00;

PORTD=0x00;
DDRD=0x00;

TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;

TCCR1A=0x00;
TCCR1B=0x0B;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x16;
OCR1AL=0x7F;
OCR1BH=0x00;
OCR1BL=0x00;

ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

GICR|=0x80;
MCUCR=0x08;
MCUCSR=0x00;
GIFR=0x80;

TIMSK=0x04;

UCSRA=0x00;
UCSRB=0x08;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x2F;

ACSR=0x80;
SFIOR=0x00;

i2c_init();

#asm("sei")
PORTA.0=1   ;
PORTA.1=1 ;
PORTA.2=1 ;
PORTA.3=1 ;

PORTA.0=!PORTA.0;

delay_ms(50);
PORTA.3=!PORTA.3;

Read_clock(get_time);
send_data();
delay_ms(50);
Set_clock();
delay_ms(100);
Read_clock(get_time);
send_data();
delay_ms(100);
}