单片机--ds1302

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ds1302.h

#include "myhead.h"#define ds1302_sec_add            0x80      //??êy?Yµ??·#define ds1302_min_add            0x82      //·?êy?Yµ??·#define ds1302_hr_add               0x84        //ê±êy?Yµ??·#define ds1302_date_add           0x86      //è?êy?Yµ??·#define ds1302_month_add          0x88      //??êy?Yµ??·#define ds1302_day_add            0x8a      //D??úêy?Yµ??·#define ds1302_year_add           0x8c      //?êêy?Yµ??·#define ds1302_control_add      0x8e        //????êy?Yµ??·#define ds1302_charger_add      0x90                     #define ds1302_clkburst_add     0xbeunsigned char timebuf[3] = {17,59,5};unsigned char datebuf[3] = {16,8,17};unsigned char daybuf = 3;unsigned char writebuf[3] = {0};unsigned char readbuf[3] = {0};unsigned char disbuf[3] = {0};unsigned char writebuf1[3] = {0};unsigned char readbuf1[3] = {0};unsigned char disbuf1[3] = {0};unsigned char writebuf2 = 0;unsigned char readbuf2 = 0;unsigned char disbuf2 = 0;// void ds1302_write_byte(unsigned char addr,unsigned char byte)// {//    unsigned char i;//  //    addr = addr & 0xfe;//     SCK = 0;//     RST = 0;//     RST = 1;//     for(i = 0;i < 8;i++)//    {//            IO = addr & 0x01;//            SCK = 0;//            SCK = 1;//            addr >>= 1;//      }//      //      for(i = 0;i < 8;i++)//    {//            IO = byte & 0x01;//            SCK = 0;//            SCK = 1;//            byte >>= 1;//      }//          //      SCK = 0;//      RST = 0;// }unsigned char ds1302_read_byte(unsigned char addr){      unsigned char i;      unsigned char temp;      addr = addr & 0xfe;    SCK = 0;    RST = 0;    RST = 1;      addr = addr + 1;    for(i = 0;i < 8;i++)      {              IO = addr & 0x01;              SCK = 0;              SCK = 1;              addr >>= 1;        }        for(i = 0;i < 8;i++)        {              SCK = 1;              SCK = 0;              temp >>= 1;              if(IO)                {                      temp += 0x80;                }        }        RST = 0;        return temp;}// void ds1302_write_time()// {//    unsigned char i;//    unsigned char temp;//    unsigned char temp1;//  //    for(i = 0;i < 3;i++)//     {//            temp = timebuf[i] / 10;//            temp1 = timebuf[i] % 10;//         writebuf[i] = (temp << 4) | temp1;           //      }//      ds1302_write_byte(ds1302_control_add,0x00);//      ds1302_write_byte(ds1302_hr_add,writebuf[0]);//      ds1302_write_byte(ds1302_min_add,writebuf[1]);//      ds1302_write_byte(ds1302_sec_add,writebuf[2]);//      ds1302_write_byte(ds1302_control_add,0x80);// }void ds1302_read_time(){      unsigned char i;      unsigned char temp;      unsigned char temp1;      readbuf[0] = ds1302_read_byte(ds1302_hr_add);      readbuf[1] = ds1302_read_byte(ds1302_min_add);      readbuf[2] = ds1302_read_byte(ds1302_sec_add);      for(i = 0;i < 3;i++)      {              temp = readbuf[i] >> 4;              temp1 = readbuf[i] & 0x0f;              disbuf[i] = temp * 10 + temp1;        }}void lcd_dis_time1(){      unsigned char lcdbuf[9] = {0};    lcdbuf[0] = (disbuf[0] / 10) + 0x30;    lcdbuf[1] = (disbuf[0] % 10) + 0x30;    lcdbuf[2] = ':';    lcdbuf[3] = (disbuf[1] / 10) + 0x30;    lcdbuf[4] = (disbuf[1] % 10) + 0x30;    lcdbuf[5] = ':';    lcdbuf[6] = (disbuf[2] / 10) + 0x30;    lcdbuf[7] = (disbuf[2] % 10) + 0x30;        lcd_dis_str(0,0,lcdbuf);}// void ds1302_write_day()// {//      writebuf2 = daybuf % 10;//  //      ds1302_write_byte(ds1302_control_add,0x00);//      ds1302_write_byte(ds1302_day_add,writebuf2);//      ds1302_write_byte(ds1302_control_add,0x80);// }void ds1302_read_day(){      readbuf2 = ds1302_read_byte(ds1302_day_add);        disbuf2 = readbuf2 & 0x0f;}void lcd_dis_day(){    switch(disbuf2)      {              case 0x01:                {                      lcd_dis_str(13,1,"Mon");                      break;                }                case 0x02:                {                      lcd_dis_str(13,1,"Tue");                      break;                }                case 0x03:                {                      lcd_dis_str(13,1,"Wed");                      break;                }                case 0x04:                {                      lcd_dis_str(13,1,"Thu");                      break;                }                case 0x05:                {                      lcd_dis_str(13,1,"Fri");                      break;                }                case 0x06:                {                      lcd_dis_str(13,1,"Sat");                      break;                }                case 0x07:                {                      lcd_dis_str(13,1,"Sun");                      break;                }        }}// void ds1302_write_date()// {//    unsigned char i;//    unsigned char temp;//    unsigned char temp1;//  //    for(i = 0;i < 3;i++)//     {//            temp = datebuf[i] / 10;//            temp1 = datebuf[i] % 10;//         writebuf1[i] = (temp << 4) | temp1;          //      }//      ds1302_write_byte(ds1302_control_add,0x00);//      ds1302_write_byte(ds1302_year_add,writebuf1[0]);//      ds1302_write_byte(ds1302_month_add,writebuf1[1]);//      ds1302_write_byte(ds1302_date_add,writebuf1[2]);//      ds1302_write_byte(ds1302_control_add,0x80);// }void ds1302_read_date(){      unsigned char i;      unsigned char temp;      unsigned char temp1;      readbuf1[0] = ds1302_read_byte(ds1302_year_add);      readbuf1[1] = ds1302_read_byte(ds1302_month_add);      readbuf1[2] = ds1302_read_byte(ds1302_date_add);      for(i = 0;i < 3;i++)      {              temp = readbuf1[i] >> 4;              temp1 = readbuf1[i] & 0x0f;              disbuf1[i] = temp * 10 + temp1;        }}void lcd_dis_date(){      unsigned char lcdbuf[9] = {0};    lcdbuf[0] = (disbuf1[0] / 10) + 0x30;    lcdbuf[1] = (disbuf1[0] % 10) + 0x30;    lcdbuf[2] = '-';    lcdbuf[3] = (disbuf1[1] / 10) + 0x30;    lcdbuf[4] = (disbuf1[1] % 10) + 0x30;    lcdbuf[5] = '-';    lcdbuf[6] = (disbuf1[2] / 10) + 0x30;    lcdbuf[7] = (disbuf1[2] % 10) + 0x30;        lcd_dis_str(0,1,lcdbuf);}void ds1302(){         unsigned char flag = 1;    unsigned char key;        lcd_init();      //ds1302_write_time();      //ds1302_write_date();     //ds1302_write_day();      while(flag)        {              ds1302_read_time();              ds1302_read_date();              ds1302_read_day();              lcd_dis_time1();              lcd_dis_date();              lcd_dis_day();            key = key_scan();        if(0xe7 == key)                {                      lcd_init();                      lcd_over();                      flag = 0;                               }                           }}

ds1302.h

#ifndef _DS1302_H#define _DS1302_Hextern void ds1302_write_byte(unsigned char addr,unsigned char byte);extern unsigned char ds1302_read_byte(unsigned char addr);//extern void ds1302_write_time();extern void ds1302_read_time();extern void lcd_dis_time1();//extern void ds1302_write_day();extern void ds1302_read_day();extern void ds1302_dis_day();//extern void ds1302_write_date();extern void ds1302_read_date();extern void lcd_dis_date();extern void ds1302();#endif

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