#include

#include

//unsigned char segout[8]={0,1,2,3,4,5,6,7}; //8列

unsigned char segout[8]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}; //8列

unsigned char code tab[]={

0x00,0x6C,0x92,0x82,0x44,0x28,0x10,0x00

};

sbit LATCH = P1^0;

sbit SRCLK= P1^1;

sbit SER = P1^2;

//公共端信號控制

sbit LATCH_B = P2^2;

sbit SRCLK_B= P2^1;

sbit SER_B= P2^0;

void DelayUs2x(unsigned char t)

{

while(--t);

}

void DelayMs(unsigned char t)

{

while(t--)

{

//大致延時1mS

DelayUs2x(245);

DelayUs2x(245);

}

}

void SendByte(unsigned char dat)

{

unsigned char i;

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

{

SRCLK=0;

SER=dat&0x80;

dat<<=1;

SRCLK=1;

}

}

void Send2Byte(unsigned char dat1,unsigned char dat2)

{

SendByte(dat1);

SendByte(dat2);

}

void Out595(void)

{

LATCH=1;

_nop_();

LATCH=0;

}

void SendSeg(unsigned char dat)

{

unsigned char i;

for(i=0;i<8;i++) //發(fā)送字節(jié)

{

SRCLK_B=0;

SER_B=dat&0x80;

dat<<=1;

SRCLK_B=1;

}

LATCH_B=1; //鎖存

_nop_();

LATCH_B=0;

}

void main()

{

unsigned char i;

while(1)

{

for(i=0;i<8;i++) //8列顯示

{

SendSeg(segout[i]);

Send2Byte(~tab[i],0xff);

Out595();

DelayMs(1);

Send2Byte(0xff,0xff);//delay(10); //防止重影

Out595();

}

}

}