#include "DotMatrix.h"


void setup() {
  // put your setup code here, to run once:
  DM_init();

  volatile unsigned int count = 0;
  //for led to turn on port_c = 1 & port_b/port_d = 0
  //*PORT_C controls led in column
  //*PORT_D & *PORT_B controls led in row
  while (1) {
    volatile char posi = 6;
    for (posi; posi >= 0; posi--) {//left to right
      for (count; count < 4; count++) {// delay
        dispA(posi);
      }
      count = 0;
      // delay(100);
      // for (count; count <15535; count++);// delay purpose
    }

  }
  // for (char i = 0; i < 8; i++) {
  //   delay(500);
  //   *PORT_C = *PORT_C << 1;
  // }

  // BottomRow();
}

void dispA(char posi) {
  switch (posi) {
    case 0:
      *PORT_C = 0x02;
      *PORT_D = 0x7F; *PORT_B = 0x03;
      delay(50);
      *PORT_C = 0x05;
      *PORT_D = 0xBF; *PORT_B = 0x03;
      delay(50);
      break;
    case 1:
      *PORT_C = 0x04;
      *PORT_D = 0x7F; *PORT_B = 0x03;
      delay(50);
      *PORT_C = 0x0A;
      *PORT_D = 0xBF; *PORT_B = 0x03;
      delay(50);
      break;
    case 2:
      *PORT_C = 0x08;
      *PORT_D = 0x7F; *PORT_B = 0x03;
      delay(50);
      *PORT_C = 0x14;
      *PORT_D = 0xBF; *PORT_B = 0x03;
      delay(50);
      break;
    case 3:
      *PORT_C = 0x10;
      *PORT_D = 0x7F; *PORT_B = 0x03;
      delay(50);
      *PORT_C = 0x28;
      *PORT_D = 0xBF; *PORT_B = 0x03;
      delay(50);
      break;
    case 4:
      *PORT_C = 0x20;
      *PORT_D = 0x7F; *PORT_B = 0x03;
      delay(50);
      *PORT_C = 0x50;
      *PORT_D = 0xBF; *PORT_B = 0x03;
      delay(50);
      break;
    case 5:
      *PORT_C = 0x40;
      *PORT_D = 0x7F; *PORT_B = 0x03;
      delay(50);
      *PORT_C = 0xA0;
      *PORT_D = 0xBF; *PORT_B = 0x03;
      delay(50);
      break;
    case 6:
      *PORT_C = 0x80;
      *PORT_D = 0x7F; *PORT_B = 0x03;
      delay(50);
      *PORT_C = 0x40;
      *PORT_D = 0xBF; *PORT_B = 0x03;
      delay(50);
      break;
  }
}

void loop() {
  // put your main code here, to run repeatedly:

}