#include <SPI.h>
 //引脚定义
int cs=9;

//字模数组
byte heart[]={0xFF,0xC3,0xCF,0x87,0xBF,0x99,0xC3,0xFF};
byte smile[]={0x42,0xe7,0x42,0x00,0x81,0x42,0x3C,0x00};

  
void setup(){
  pinMode(cs,OUTPUT);
  SPI.begin();
  Init_MAX7219();
  Serial.begin(9600);//设定波特率为9600

}

void loop(){

  
    for(byte i=1;i<9;i++){//段码
    
        Write_Max7219(i,smile[i-1]);
      
    }
    delay(1000);
  
 
    for(byte i=1;i<9;i++){//段码
      
        Write_Max7219(i,heart[i-1]);
      
    }
    delay(1000);
  
}

 

void Write_Max7219(byte address, byte dat){//digNum从0开始
    digitalWrite(cs,0);
    SPI.transfer(address);
    SPI.transfer(dat);
    
    digitalWrite(cs,1);
}

 
void Init_MAX7219(void)
{
 
  Write_Max7219(0x09, 0x00);    //译码方式：BCD码
  Write_Max7219(0x0a, 0x01);  //亮度 
  Write_Max7219(0x0b, 0x07);  //扫描界限；8个数码管显示
  Write_Max7219(0x0c, 0x01);    //掉电模式：0，普通模式：1
  Write_Max7219(0x0f, 0x00);
  
  delay(10); 
}