原创 单片机与12887

最近在对12887实时时钟芯片进行编程 编了蛮久了 基本的框架已经出来了 就差没有完善，剩下的以后再完善咯！

程序如下：#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit lcdrs="P3"^7;
sbit lcdrw="P3"^6;
sbit lcden="P3"^4;
sbit s1=P3^0;
sbit s2=P3^1;
sbit s3=P3^2;
sbit s4=P3^5;
sbit dscs="P1"^0;
sbit dsas="P1"^1;
sbit dsrw="P1"^2;
sbit dsds="P1"^3;
uchar count,s1num;
char miao,shi,fen;
char nian,yue,ri,xq;
uchar code table[]=" 2009-00-00 000";
uchar code table1[]="    00:00:00";
uchar code table2[][3]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
void delay(uint z)
{
  uint x,y;
for(x=z;x>0;x--)
   for(y=110;y>0;y--);
}

void write_com(uchar com)
{
  lcdrs="0";
  lcden="0";
  lcdrw="0";
  P0=com;
  delay(5);
  lcden="1";
  delay(5);
  lcden="0";
}
void write_date(uchar date)
{
  lcdrs="1";
  lcden="0";
  P0=date;
  delay(5);
  lcden="1";
  delay(5);
  lcden="0";
}void write_ds(uchar add,uchar date)
{
 
  dsas="1";
  dsds="1";
  dsrw="1";
  dscs="0";
  P2=add;
  dsas="0";
  dsrw="0";
  P2=date;
  dsrw="1";
  dsas="1";
  dscs="1";
 }

void uinit ()
{
  uint num;
  lcden="0";
 write_ds(0x0A,0x70);
 write_ds(0x06,4);
/* write_ds(0x0b,0x07);
 write_ds(0x02,11);
 write_ds(0x04,15);
 write_ds(0x07,30);
 write_ds(0x08,3);
 write_ds(0x09,9);*/
  write_com(0x38);
  write_com(0x0c);
  write_com(0x06);
  write_com(0x01);
  write_com(0x80);
  for(num=0;num<15;num++)
  {
   write_date(table[num]);
   delay(5);
  }
  write_com(0x80+0x40);
  for(num=0;num<12;num++)
  {
   write_date(table1[num]);
   delay(5);
  }
  }

void write_sfm(uchar add,uchar date)
{
  uchar shi ,ge;
  shi="date/10";
  ge="date"%10;
  write_com(0x80+0x40+add);
  write_date(0x30+shi);
  write_date(0x30+ge);
}
void writ_nyr(uchar add,uchar date)
{
  uchar shi,ge;
  shi="date/10";
  ge="date"%10;
  write_com(0x80+add);
  write_date(0x30+shi);
  write_date(0x30+ge);
}
void write_day(uchar date)
{
 uchar day,i;
 day=date;
 if(day<=7)
{  if(day==1){write_com(0x80+12);for(i=0;i<3;i++) write_date(table2[1]);}
   if(day==2) {write_com(0x80+12);for(i=0;i<3;i++) write_date(table2[2]);}
   if(day==3){write_com(0x80+12);for(i=0;i<3;i++) write_date(table2[3]);}
   if(day==4){write_com(0x80+12);for(i=0;i<3;i++) write_date(table2[4]);}
   if(day==5){write_com(0x80+12);for(i=0;i<3;i++) write_date(table2[5]);}
   if(day==6){write_com(0x80+12);for(i=0;i<3;i++) write_date(table2[6]);}
   if(day==7){write_com(0x80+12);for(i=0;i<3;i++) write_date(table2[7]);}
   }
}
 uchar read_ds(uchar add)
{
 uchar ds_date;
 dscs=0;
 dsas=1;
 dsds=1;
 dsrw=1;
 
 P2=add;
 dsas=0;
 dsds=0;
 P2=0xff;
 ds_date=P2;
 dsds=1;
 dsas=1;
 dscs=1;
 return ds_date;
}
void keyscan()
{
 
 if(s1==0) 
 {
  delay(5);
  if(s1==0)
  { s1num++;
   while(!s1);
   if(s1num==1)
   {
    write_ds(0x0A,0x70);
    write_com(0x80+0x40+10);
    write_com(0x0f);
   }
 }
   if(s1num==2)
   {
    write_com(0x80+0x40+7);
   }
   if(s1num==3)
   {
    write_com(0x80+0x40+4);
   }
   if(s1num==4)
   {
    s1num=0;
    write_com(0x0c);
     write_ds(0x0A,0x20);
   }