单片机万年历程序设计与实现

#include <c8051f310.h>
#define uchar unsigned char 
#define uint unsigned int
sbit T_RST=P2^0;
sbit T_IO=P2^1;
sbit T_CLK=P3^4;
sbit DQ=P0^6;
sbit ACC0=ACC^0;
sbit ACC7=ACC^7;
sbit up=P3^1;
sbit down=P3^2;
sbit set=P3^0;
sbit key3=P3^3;
uchar v,s,d,f,g,k,l,flag,flag1;
uchar b,clock_ns,clock_ng,clock_ys,clock_yg,clock_rs,clock_rg,clock_ss,clock_sg,clock_fs,clock_fg,clock_ms,clock_mg,clock_ws,clock_wg;
char nian,yue,ri,date,hour,mie,sei,week,yue1,date1,x,z,m,n;
float temperature,h;             //温度保存在temperature里面
unsigned char tempH=0,tempL=0;
uchar clk_time[7],t[8];  //寄存器初始值
uchar code ledmap1[]={0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0x08,0xf9}; //年    月    日
uchar code ledmap2[]={0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9}; //时    分    秒
uchar code ledmap3[]={0x0f,0x1f,0x2f,0x3f,0x4f,0x5f,0x6f,0x7f,0x8f,0x9f}; //星期  周数  温度
unsigned code table[]={0x0f,0x1f,0x2f,0x3f,0x4f,0x5f,0x6f,0x7f,0x8f,0x9f};
uchar code table1[]={0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0x08,0xf9};
void delay(uchar a);
/********************************
函数功能：18b20延时子程序
入口参数：time
出口参数：
***************************/

void delay11(int i)
{
  while(--i);
}

/******************DS1302：写入操作(上升沿)*********************/ 
void write_byte(uchar da)
{
   uchar i;
   ACC=da;
   for(i=8;i>0;i--)
   { 
      T_IO=ACC0;
  T_CLK=0;     
      T_CLK=1;
      ACC=ACC>>1;
   }
}

/******************DS1302：读取操作（下降沿）*****************/
uchar read_byte(void)
{
   uchar i;
   for(i=0;i<8;i++)
   {
      ACC=ACC>>1;
  T_CLK = 1;
  T_CLK = 0;
      ACC7 = T_IO;
   }