mình tham khảo code như thế này, viết bằng ccs , báo lỗi, mấy bạn giúp mình với, đang làm đồ án cái lịch vạn niên
Code:
#include <16f877a.h>
#include <def_877a.h>
#fuses nowdt,noprotect,nolvp,hs,xt
#use delay(clock=4000000)
#use i2c(master,slow,sda=pin_c4,scl=pin_c3)
// cac dinh nghia
#define status rd4;
#define mode rd5;
#define increase rd6;
#define decrease rd7;
#define led1 ra0;
#define led2 ra1;
#define led3 ra2;
#define led4 ra3;
#define led5 ra4;
#define led6 ra5;
#define led7 re0;
#define led8 re1;
//khai bao cac bien
int8 sec,min,hour,dow,month,year;
const unsigned char maled[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
int8 sec1,sec2,min1,min2,date1,hour1,hour2,dow;
int8 day,date2,month1,month2,year1,year2,year3,year4;
void hienthi1(void);
void hienthi2(void);
void update_time(void);
void set_time(void);
void set_min(void);
void set_hour(void);
void set_day(void);
void set_date(void);
void set_month(void);
void set_year(void);
void main()
{
set_tris_A(0x00);
set_tris_b(0x01);
set_tris_d(0xff);
set_tris_e(0x00);
porta=porte=0xff;
while(1)
{
update_time();
if(status==0)
{hienthi2();}
if(mode==0)
{set_time();}
}
}
void update_time(void)
{
i2c_start();
i2c_write(0xd0); //gui dia chi cua slave
i2c_write(0x00); //thiet lap lai con tro
i2c_Stop();
i2c_start();
i2c_write(0xd1);
sec=i2c_read(0);
min=i2c_read(1);
hour=i2c_read(2);
dow=i2c_read(3);
date=i2c_read(4);
month=i2c_read(5);
year=i2c_read(6);
i2c_stop();
/////thuc hien chuyen doi
sec1=(sec&0x0f);
sec2=(sec&0x70)>>4;
min1=(min&0x0f);
min2=(min&0x70)>>4;
hour1=(sec&0x0f);
hour2=(sec&0x30)>>4;
day=(dow&0x07);
date1=(date&0x0f);
date2=(date&0x30)>>4;
month1=(sec&0x0f);
month2=(sec&0x10)>>4;
yeardv=(year&0x0f);
yearch=(year&0xf0)>>4;
}
//-------------Hien thi sec-min-hour--------------
void hienthi1()
{
portb=maled[sec1); led6=0; delay_us(100); led6=1;
portb=maled(sec2); led5=0; delay_us(100); led5=1;
portb=maled[min1); led4=0; delay_us(100); led4=1;
portb=maled(min2); led3=0; delay_us(100); led3=1;
portb=maled[hour1);led2=0; delay_us(100); led2=1;
portb=maled(hour2);led1=0; delay_us(100); led1=1;
portb=maled[day); led8=0; delay_us(100); led8=1;
}
//------------Hien thi day-date-month-year
void hienthi2()
{
int16 i=0;
while(status==0)
{
}
while(i<600)
{
portb=maled(date1);led1=0; delay_us(100); led1=1;
portb=maled(date2);led2=0; delay_us(100); led1=1;
portb=maled(month1);led3=0; delay_us(100); led3=1;
portb=maled(month2);led4=0; delay_us(100); led4=1;
portb=maled(year1);led8=0; delay_us(100); led8=1;
portb=maled(year2);led7=0; delay_us(100); led7=1;
portb=maled(0x01); led6=0;delay_us(100); led6=1;
portb=maled(0x02); led5=0;delay_us(100); led5=1;
i++;
}
}
void update_ds1307(void)
{
int8 data=0; //luu tru du lieu tam thoi de gui vao ds1307
i2c_start();
i2c_write(0xd0);
i2c_start(0x00);// ghi du lieu bat dau tu vi tri 00
data=sec1+(sec2<<4);
data=data&0b01111111;
i2c_write(data);
data=min1+(min2<<4);
i2c_write(data);
hour=hour1+(hour2<<4);
i2c_write(data);
data=day;
i2c_write(data);
data=date1+(date2<<4);
i2c_write(data);
data=month1+(month2<<4);
i2c_write(data);
data=year1+(year2<<4);
i2c_write(data);
data=0x00;
i2c_write(data);
i2c_stop();
}
void set_time(void)
{
set_year(void);
set_month(void);
set_date(void);
set_day(void);
set_hour(void);
set_min(void);
set_sec(void);
while(mode==0)
{
}
update_ds1307();
}
void set_year(void)
{
while(mode==0)
{
}
do
{
if(increase==0)
{
while(increase==0)
{
}
year1++;
if((year2==9) & (year1==10))
{
year1=year2=0;
}
if(year1==10)
{
year2++;year1=0;
}
}
if(decrease==0)
{
while(decrease==0)
{
}
year1--;
if((year2==0) & (year1==255))
{year1=year2=9;}
if(year1==255)
{year1=9,year2--;};
}
portb=0x02; led5=0; delay_us(200); led5=1;
portb=0x00; led6=0; delay_us(200); led6=1;
portb=maled[year2]; led7=0; delay_us(200); led7=1;
portb=maled[year1]; led8=0; delay_us(200); led8=1;
}
while(mode==1);
}
void set_month(void)
{
while(mode==0){}
do
{
if(increase==0)
{
while(increase==0)
{
}
month1++;
if((month2==1) & (month1==3))
{
month1=1;month2=0;
}
if(month1==10)
{
month2++;month1=0;
}
}
if(decrease==0)
{
while(decrease==0)
{
}
month1--;
if((month2==0) & (month1==0))
{month1=2;month2=1;}
if(month1=0)
{month1=9,month2--;};
}
portb=maled[month2]; led3=0; delay_us(200); led3=1;
portb=maled[month1]; led4=0; delay_us(200); led4=1;
}
while(mode==1);
}
void set_date(void)
{
while(mode==0)
{
}
do
{
if(increase==0)
{
while(increase==0){}
date1++;
if((date2==3)& (date1==2))
{
date2=0;date1=1
}
if(date1==10)
{date2++;date1=0;}
}
if(decrease==0)
{
while(decrease==0){}
date1--;
if((date2==0)&(date1==0))
{
date2=3;;date1=1;
}
if(date1==255);
{date2--,date1=9;}
}
portb=maled[date2]; led1=0;delay_us(200);led1=1;
portb=maled[date1]; led2=0;delay_us(200);led2=1;
}
while(mode==1);
}
void set_day(void)
{
while(mode==0){}
do
{
if(increase==0)
{
while(increase==0){}
day++;
if(day==8)
{day=1;}
}
if(decrease==0)
{
while(decrease==0){}
day--;
if(day==255)
{day=7;}
}
portb=maled[day]; led8=0;delay_us(200);led8=1;
}
while(mode==1);
}
void set_hour(void)
{
while(mode==0){}
do
{
if(increase==0)
{
while(increase==0){}
hour1++;
if((hour2==2)&(hour1==4))
{hour2=0;hour1=0;}
if(hour1==1)
{hour2++;hour1=0}
}
if(decrease==0)
{
while(decrease==0)
{}
hour1--;
if((hour2==0)&(hour1==255))
{hour2=2;hour1=3;}
if(hour1==255)
{hour2--;hour1=9;}
}
portb=maled[hour2];led1=0;delay_us(200);led1=1;
portb=maled[hour1];led2=0;delay_us(200);led2=1;
}
while(mode==1);
}
void set_min(void)
{
while(mode==0){}
do
{
if(increase==0)
{
while(increase==0){}
min1++;
if((min2==5)&(min1==10))
{min2=0;min1=0;}
if(min1==10)
{min2++;min1=0}
}
if(decrease==0)
{
while(decrease==0)
{}
min1--;
if((min2==0)&(min1==255))
{min2=5;min1=9;}
if(min1==255)
{min2--;min1=9;}
}
portb=maled[min2];led3=0;delay_us(200);led3=1;
portb=maled[min1];led3=0;delay_us(200);led4=1;
}
while(mode==1);
}