Arduino animation on 8 leds display

#include "LowPower.h"

unsigned char i;
 unsigned char j;
/*Port Definitions*/
int Max7219_pinCLK = 10;
int Max7219_pinCS = 9;
int Max7219_pinDIN = 8;


//make your own with http://blog.riyas.org/2013/12/online-led-matrix-font-generator-with.html
unsigned char disp1[6][8]={
{0x00,0x00,0x6c,0xfe,0xfe,0x7c,0x38,0x10},
{0x00,0x00,0x36,0x7f,0x7f,0x3e,0x1c,0x08},
{0x00,0x36,0x7f,0x7f,0x3e,0x1c,0x08,0x00},
{0x36,0x7f,0x7f,0x3e,0x1c,0x08,0x00,0x00},
{0x6c,0xfe,0xfe,0x7c,0x38,0x10,0x00,0x00},
{0x00,0x6c,0xfe,0xfe,0x7c,0x38,0x10,0x00},
};



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()
{
   //LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_OFF);
   for(j=0;j<6;j++)
  {
   for(i=1;i<9;i++)
    Write_Max7219(i,disp1[j][i-1]);
   delay(random(90, 200));
  }
}