51 single chip microcomputer 8X8 dot matrix screen circularly moves left

Use timer 0 interrupt to control 8x8 dot matrix screen to shift left in a loop

#include

#include

typedef unsigned char u8;

typedef unsigned int u16;

sbit SRCLK=P3^6;

sbit RCLK=P3^5;

sbit SER=P3^4;

u16 i,k;

u16 time;

u8 code ledduan[][8]={{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x24},     

                      {0x00,0x00,0x00,0x00,0x00,0x00,0x24,0x6c},    

                      {0x00,0x00,0x00,0x00,0x00,0x24,0x6c,0xff},    

                      {0x00,0x00,0x00,0x00,0x24,0x6c,0xff,0xff}, 

                      {0x00,0x00,0x00,0x24,0x6c,0xff,0xff,0x6c},    

                      {0x00,0x00,0x24,0x6c,0xff,0xff,0x6c,0x24},     

                      {0x00,0x24,0x6c,0xff,0xff,0x6c,0x24,0x00},     

                    {0x24,0x6c,0xff,0xff,0x6c,0x24,0x00,0x00},

                      {0x6c,0xff,0xff,0x6c,0x24,0x00,0x00,0x00},

                      {0xff,0xff,0x6c,0x24,0x00,0x00,0x00,0x00},

{0xff,0x6c,0x24,0x00,0x00,0x00,0x00,0x00},

{0x6c,0x24,0x00,0x00,0x00,0x00,0x00,0x00},

{0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00},};

u8 code ledwei[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};

void delay(u16 i)

{

while(i--);

}

void timer0init()

{

TMOD=0x01;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

ET0=1;

TR0=1;

EA=1;

}

void Hc595SendByte(u8 dat)

{

u8a;

SRCLK=0;

RCLK=0;

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

{

SER=dat>>7;

dat<<=1;

SRCLK=1;

_nop_();

_nop_();

SRCLK=0;

}

RCLK=1;

_nop_();

_nop_();

RCLK=0;

}

void main()

{

timer0init();

{

while(1)

{

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

{

  P0=ledwei[i];

  Hc595SendByte(ledduan[k][i]);

  delay(50);

  Hc595SendByte(0x00);

}

}

}

}

void timer0() interrupt 1

{

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

time++;

{

if(time>=5)

{

k++;

time=0;

}

if(k>12)

{

k=0;

}

}

}