Single chip microcomputer dot matrix case loop display love and "亲" word

#include "main.h"


//define variables
unsigned char temp = 0xfe;
unsigned char KEY_NUM = 0;


unsigned char Display_word[4][4] = {
0x00,0x48,0x2A,0x8E,0xFB,0x0E,0x2A,0x48, //亲
0x0C,0x1E,0x3E,0x7C,0x7C,0x3E,0x1E,0x0C, //心
};






//********************************************************
//Main function
//********************************************************
void main()
{
unsigned int i;
unsigned char j,k;
while(1)
{
for(i = 0 ; i < 1000 ; i++)
{
temp = 0x7f;
for(j = 0 ; j < 2 ; j++) //Display the first two letters
{
for(k = 0 ; k < 4 ; k++) //One letter 4BYTE
{
Send_Byte(temp); //Column selection
Send_Byte(Display_word[j][k]); //Row data
LEDARRAY_LAT = 1; //Latch data
_nop_();

LEDARRAY_LAT = 0;
_nop_();
temp = (temp>>1)|0x80;
}
}
}


for(i = 0 ; i < 1000 ; i++)
{
temp = 0x7f;
for(j = 2 ; j < 4 ; j++) //Display the first two letters
{
for(k = 0 ; k < 4 ; k++) //One letter 4BYTE
{
Send_Byte(temp); //Column selection
Send_Byte(Display_word[j][k]); //Row data
LEDARRAY_LAT = 1; //Latch data
_nop_();

LEDARRAY_LAT = 0;
_nop_();
temp = (temp>>1)|0x80;
}
}
}


}
}


//********************************************************
//Send a byte of data
//****************************************************
void Send_Byte( unsigned char dat)
{
unsigned char i;
LEDARRAY_CLK = 0;
_nop_(); 
LEDARRAY_LAT = 0;
_nop_();


for( i = 0 ; i < 8 ; i++ )
{
if( dat&0x01)/*This is the bitwise AND operation in C language. dat is ANDed with 0000 0001.
              Then when the lowest bit of dat is not 0, it is if(1), which is true and the statement below if is executed.
  Otherwise, no matter what the other bits of dat are, if the last bit is 0, it is false and the corresponding statement is not executed. */
{
LEDARRAY_DI = 1; 
}
else
{
LEDARRAY_DI = 0;
}
LEDARRAY_CLK = 1; //Send data on rising edge
// _nop_();
LEDARRAY_CLK = 0;
// _nop_();

dat >>= 1; 
} 

}

#ifndef __MAIN_H__
#define __MAIN_H__


#include
#include


sbit LEDARRAY_LAT = P3^6;
sbit LEDARRAY_CLK = P3^5; 
sbit LEDARRAY_DI = P3^4;


//函数或者变量声明
extern void Delay_ms(unsigned int n);
extern void Send_Byte( unsigned char dat);


#endif