unsigned char i;

 unsigned char j; 

/*Port Definitions*/

int Max7219_pinCLK = 10;

int Max7219_pinCS = 9;

int Max7219_pinDIN = 8;

 

unsigned char disp1[38][8]={

{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0

{0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10},//1

{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2

{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3

{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4

{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5

{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6

{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7

{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8

{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9

{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A

{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B

{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C

{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D

{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E

{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F

{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G

{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H

{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I

{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J

{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K

{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L

{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M

{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N

{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O

{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P

{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q

{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R

{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S

{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T

{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U

{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V

{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W

{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X

{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y

{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z

};

 

 

 

void Write_Max7219_byte(unsigned char DATA) 

{   

            unsigned char i;

	    digitalWrite(Max7219_pinCS,LOW);		

	    for(i=8;i>=1;i--)

          {		  

             digitalWrite(Max7219_pinCLK,LOW);

             digitalWrite(Max7219_pinDIN,DATA&0x80);// Extracting a bit data

             DATA = DATA<<1;

             digitalWrite(Max7219_pinCLK,HIGH);

           }                                 

}

 

 

void Write_Max7219(unsigned char address,unsigned char dat)

{

        digitalWrite(Max7219_pinCS,LOW);

        Write_Max7219_byte(address);           //address，code of LED

        Write_Max7219_byte(dat);               //data，figure on LED 

        digitalWrite(Max7219_pinCS,HIGH);

}

 

void Init_MAX7219(void)

{

 Write_Max7219(0x09, 0x00);       //decoding ：BCD

 Write_Max7219(0x0a, 0x03);       //brightness 

 Write_Max7219(0x0b, 0x07);       //scanlimit；8 LEDs

 Write_Max7219(0x0c, 0x01);       //power-down mode：0，normal mode：1

 Write_Max7219(0x0f, 0x00);       //test display：1；EOT，display：0

}

 

 

 

void setup()

{

 

  pinMode(Max7219_pinCLK,OUTPUT);

  pinMode(Max7219_pinCS,OUTPUT);

  pinMode(Max7219_pinDIN,OUTPUT);

  delay(50);

  Init_MAX7219();

}

 

 

void loop()

{ 

   for(j=0;j<38;j++)

  {

   for(i=1;i<9;i++)

    Write_Max7219(i,disp1[j][i-1]);

   delay(500);

  } 		

}