90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
int MAXPINCLK = 10; // Define Digital Port 10
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int MAXPINCS = 9; // Define Digital Port 9
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int MAXPINDIN = 8; // Define Digital Port 8
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unsigned char x; //occupies bytes on the memory
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unsigned char y; //occupies bytes on the memory
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unsigned char disp1[38][8]={
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{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C}, //Char 0
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{0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10}, //Char 1
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{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E}, //Char 2
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{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0}, //Char 3
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{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8}, //Char 4
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{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0}, //Char 5
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{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0}, //Char 6
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{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8}, //Char 7
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{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E}, //Char 8
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{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E}, //Char 9
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{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22}, //Char A
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{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0}, //Char B
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{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0}, //Char C
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{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0}, //Char D
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{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C}, //Char E
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{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40}, //Char F
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{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C}, //Char G
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{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44}, //Char H
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{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C}, //Char I
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{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30}, //Char J
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{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24}, //Char K
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{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C}, //Char L
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{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81}, //Char M
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{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0}, //Char N
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{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C}, //Char O
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{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20}, //Char P
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{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D}, //Char Q
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{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21}, //Char R
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{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C}, //Char S
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{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8}, //Char T
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{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C}, //Char U
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{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18}, //Char V
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{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0}, //Char W
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{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41}, //Char X
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{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8}, //Char Y
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{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F}, //Char Z
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};
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void MX7219_WRITE_byte(unsigned char DATA) {
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unsigned char x;
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digitalWrite(MAXPINCS,LOW);
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for(x=8;x>=1;x--)
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{
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digitalWrite(MAXPINCLK,LOW);
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digitalWrite(MAXPINDIN,DATA&0x80);// Extracting a bit data
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DATA = DATA<<1;
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digitalWrite(MAXPINCLK,HIGH);
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}
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}
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void MX7219_WRITE(unsigned char address,unsigned char dat) {
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digitalWrite(MAXPINCS,LOW);
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MX7219_WRITE_byte(address); // The address code of the LED
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MX7219_WRITE_byte(dat); //The data figure on LED
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digitalWrite(MAXPINCS,HIGH);
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}
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void InitMAX7219(void) {
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MX7219_WRITE(0x09, 0x00); //Set decoding BCD
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MX7219_WRITE(0x0a, 0x03); //Set the brightness
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MX7219_WRITE(0x0b, 0x07); //Set scan & limit 8 LEDs
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MX7219_WRITE(0x0c, 0x01); //On power-down mode is 0，normal mode is 1
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MX7219_WRITE(0x0f, 0x00); //To test display 1 EOT，display 0
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}
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void setup() {
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pinMode(MAXPINCLK,OUTPUT);
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pinMode(MAXPINCS,OUTPUT);
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pinMode(MAXPINDIN,OUTPUT);
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delay(50);
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InitMAX7219();
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}
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void loop() {
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for(y=0;y<38;y++) {
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for(x=1;x<9;x++)
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MX7219_WRITE(x,disp1[y][x-1]);
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delay(500);
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}
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}
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