1302.h

12864液晶显示多功能电子时钟

/*文件描述：时钟处理函数集，作头文件用
 *端口说明：clock_RST  P3.3
 			clock_DAT  P3.4
            clock_CLK  P3.5
*/
#include <reg52.h>
#include <intrins.h>

//定义端口
sbit clock_RST = P3^3;
sbit clock_DAT = P3^4;
sbit clock_CLK = P3^5;

unsigned char  sec;
unsigned char  min;
unsigned char  hour;
unsigned char  day;
unsigned char  mon;
unsigned char  week;
unsigned char  year;

void clock_out(unsigned char dd)
{
	unsigned char i;
	ACC=dd;
	for(i=0;i<8;i++)
	{
		if(ACC&0x01==1)
		 clock_DAT=1;
		 else clock_DAT=0;
		 clock_CLK=0;
		 clock_CLK=1;
		 ACC=dd>>1;
    }
}

unsigned char clock_in(void)
{
	unsigned char i;
	ACC=0;
	for(i=0;i<8;i++)
	{
		ACC=ACC >>1;
		if(clock_DAT==1)
			ACC|=0x80;
		clock_CLK=1;
		clock_CLK=0;
	}
	return ACC;
}

void write_clock(unsigned char ord,unsigned char dat)
{
	clock_CLK = 0;
	clock_RST = 0;
	clock_RST = 1;
	clock_out(ord);
	clock_out(dat);
	clock_RST=0;
	clock_CLK=1;
}

unsigned char read_clock(unsigned char ord)
{
	unsigned char temp,dat;
	clock_CLK=0;
	clock_RST=0;
	clock_RST=1;
	clock_out(ord);
	temp = clock_in();
	clock_RST=0;
	clock_CLK=1;
	dat=temp>>4;
	temp=temp&0x0f;
	dat=temp+dat*10;
	return dat;
}
void init_1302(void)
{
	write_clock(0x8e,0x00);
	write_clock(0x8c,0x08);
	write_clock(0x8a,0x01);
	write_clock(0x88,0x0b);
	write_clock(0x86,0x14);
	write_clock(0x84,0x00);
	write_clock(0x82,0x00);
	write_clock(0x80,0x00);
	write_clock(0x90,0xa5);
	write_clock(0x8e,0x80);
}
void read_clocks(void)
{
	sec=read_clock(0x80);
	min=read_clock(0x82);
	hour=read_clock(0x84);
	day=read_clock(0x86);
	mon=read_clock(0x88);
	week=read_clock(0x8a);
	year=read_clock(0x8c);
}