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#include <reg52.h>
#include "LCD1602.h"
#include "IIC.h"
#define uchar unsigned char
#define uint unsigned int
uchar flags = 1; //1秒定时标志
static uchar cnt = 0; //用来记录中断次数，设置的中断定时为1ms，中断200次即一秒钟
unsigned char \*weeklist[7]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
unsigned char write_buff[8],read_buff[8];
//-----------延时用于稳定-------------
void delay\_kk(uint k)
{
while(k--);
}
//-----------时间预设定值---------
void time\_init()
{
iic\_send\_add\_byte(0x02,0x30); //0秒
iic\_send\_add\_byte(0x03,0x26); //0分钟
iic\_send\_add\_byte(0x04,0x11); //0小时
iic\_send\_add\_byte(0x05,0x04); //3号
iic\_send\_add\_byte(0x06,0x02); //week
iic\_send\_add\_byte(0x07,0x01); //1月 20世纪的
iic\_send\_add\_byte(0x08,0x22); //2022年
}
//----------------PCF8563初始化-----------------
void pcf\_init()
{
iic\_send\_add\_byte(0x00,0x00); //启动时钟
}
//----------------BCD转10进制-----------
uchar bcd\_dec(uchar bat)
{
// uchar temp1,temp2,tol;
// temp1=bat&0x0f;
// temp2=(bat&0xf0)>>4;
// tol=temp2\*10+temp1;
return ( (bat/16\*10) + (bat%16) );
//return tol;
}
//------------LCD1602显示：年,月,日,小时,分钟,秒,
void display\_time(uchar sec,min,hour,day,mon,year,unsigned char \*week)
{
LCD\_Write\_String(1,0,"20");
LCD1602\_WriteData(year/10 +'0');
LCD1602\_WriteData(year%10 +'0');
LCD1602\_WriteData('-');
LCD1602\_WriteData(mon/10 + 0x30);
LCD1602\_WriteData(mon%10 + 0x30);
LCD1602\_WriteData('-');
LCD1602\_WriteData(day/10 + 0x30);
LCD1602\_WriteData(day%10 + 0x30);
LCD\_Write\_String(13,0,week);
LCD1602\_WriteCom(0xc0 + 4);//第二行第四列
LCD1602\_WriteData(hour/10 + '0');
LCD1602\_WriteData(hour%10 + '0');
LCD1602\_WriteData(':');
LCD1602\_WriteData(min/10 + 0x30);
LCD1602\_WriteData(min%10 + 0x30);
LCD1602\_WriteData(':');
LCD1602\_WriteData(sec/10 + 0x30);
LCD1602\_WriteData(sec%10 + 0x30);
}
void TimeInit()
{
EA = 1; //打开中断总开关
ET0 = 1; //打开T0中断开关
TMOD = 0x01; //设置定时器工作在模式1
TH0=(65536-5000)/256; //高四位寄存器的值；//5000us=5ms
TL0=(65536-5000)%256; //低四位寄存器的值；
TR0 = 1; //允许定时器T0工作
}
void main()
{
uchar sec,min,hour,day,mon,year,week,sec1,min1,hour1,day1,mon1,year1,\*week1;
//PCF8563读出的变量和代转换成的十进制变量
TimeInit();
LCD1602\_Init();
// iic\_send\_add\_byte(0x00,0x20); // 关闭时钟
// delay\_kk(1000);
// time\_init(); //时钟芯片初始时间设置
// pcf\_init();
delay\_kk(1000);
while(1)
{
if(flags){
ReadData1(0x02,0x07,read_buff) ;/\*多字节\*/
sec = 0x7f&read_buff[0];//秒
min = 0x7f&read_buff[1] ;
hour = 0x3f&read_buff[2];
day = 0x3f&read_buff[3];//日期
week = 0x07&read_buff[4];//周不需要BCD转码
mon = 0x1f&read_buff[5];//月份
year = 0xff&read_buff[6] ;
sec1=bcd\_dec(sec);//将读取的BCD码秒转换成十进制秒以便运算
min1=bcd\_dec(min);
hour1=bcd\_dec(hour);
day1=bcd\_dec(day);
mon1=bcd\_dec(mon);
year1=bcd\_dec(year);
week1 = weeklist[week];
// switch(week-1){
// case 6: week1="Sat";break;
// case 5: week1="Fri";break;
// case 4: week1="Thu";break;
// case 3: week1="Wes";break;
// case 2: week1="Tue";break;
// case 1: week1="Mon";break;
// case 0: week1="Sun";break;
// }
flags=0;
}
display\_time(sec1,min1,hour1,day1,mon1,year1,week1); //LCD1602显示时间
}
}
void InterruptTimer0() interrupt 1
{
TH0=(65536-5000)/256; //高四位寄存器的值；//5000us=5ms
TL0=(65536-5000)%256; //低四位寄存器的值；
cnt++; //中断次数计数值加1
if(cnt>=200) //中断次数达到200次即为1秒
{
cnt = 0; //清零，重新记录中断次数
flags = 1; //设置1秒定时标志位1
}
}
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