单片机的时分秒的c语言,89c51 C语言单片机 时钟程序

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谁可以帮忙在这个程序里加个闹钟程序

刚学不懂 顺便讲解一下 谢了

#include

#include

unsigned char code digit[10]={"0123456789"};

sbit DATA=P1^1;

sbit RST=P1^2;

sbit SCLK=P1^0;

void delaynus(unsigned char n)

{

unsigned char i;

for(i=0;i

}

void Write1302(unsigned char dat)

{

unsigned char i;

SCLK=0;

delaynus(2);

for(i=0;i<8;i++)

{

DATA=dat&0x01;

delaynus(2);

SCLK=1;

delaynus(2);

SCLK=0;

dat>>=1;

}

}

void WriteSet1302(unsigned char Cmd,unsigned char dat)

{

RST=0;

SCLK=0;

RST=1;

delaynus(2);

Write1302(Cmd);

Write1302(dat);

SCLK=1;

RST=0;

}

unsigned char Read1302(void)

{

unsigned char i,dat;

delaynus(2);

for(i=0;i<8;i++)

{

dat>>=1;

if(DATA==1)

dat|=0x80;

SCLK=1;

delaynus(2);

SCLK=0;

delaynus(2);

}

return dat;

}

unsigned char ReadSet1302(unsigned char Cmd)

{

unsigned char dat;

RST=0;

SCLK=0;

RST=1;

Write1302(Cmd);

dat=Read1302();

SCLK=1;

RST=0;

return dat;

}

void   Init_DS1302 (void)

{

WriteSet1302(0x8e,0x00);

WriteSet1302(0x80,((0/10)<<4|(0%10)));

WriteSet1302(0x82,((10/10)<<4|(10%10)));

WriteSet1302(0x84,((9/10)<<4|(9%10)));

WriteSet1302(0x86,((29/10)<<4|(29%10)));

WriteSet1302(0x88,((12/10)<<4|(12%10)));

WriteSet1302(0x8c,((9/10)<<4|(9%10)));

}

sbit RS=P2^0;

sbit RW=P2^1;

sbit E=P2^2;

sbit BF=P0^7;

void delay1ms()

{

unsigned char i,j;

for(i=0;i<10;i++)

for(j=0;j<33;j++);

}

void delaynms(unsigned char n)

{

unsigned char i;

for(i=0;i

delay1ms();

}

bit BusyTest(void)

{

bit result;

RS=0;

RW=1;

E=1;

_nop_();

_nop_();

_nop_();

_nop_();

result=BF;

E=0;

return result;

}

void WriteInstruction(unsigned char dictate)

{

while(BusyTest()==1);

RS=0;

RW=0;

E=0;

_nop_();

_nop_();

P0=dictate;

_nop_();

_nop_();

_nop_();

_nop_();

E=1;

_nop_();

_nop_();

_nop_();

_nop_();

E=0;

}

void WriteAddress(unsigned char x)

{

WriteInstruction(x|0x80);

}

void WriteData(unsigned char y)

{

while(BusyTest()==1);

RS=1;

RW=0;

E=0;

P0=y;

_nop_();

_nop_();

_nop_();

_nop_();

E=1;

_nop_();

_nop_();

_nop_();

_nop_();

E=0;

}

void LcdInitiate(void)

{

delaynms(15);

WriteInstruction(0x38);

delaynms(5);