MCE_Lester_1

#define BUTTON_1_2_PRESSED 0
#define BUTTON_1_PRESSED 4
#define BUTTON_2_PRESSED 8

#define LED_1  LATA.F0
#define LED_2  LATA.F1

#define EVERLOOP while (1)

#define FALSE 0
#define TRUE 1

#define STATE_LOW 0
#define STATE_HIGH 1

unsigned int _FreqLED;

unsigned int _ButtonPressed;

unsigned int _LedSelected;

unsigned int _PORTDValue;

void initMCU() {
  ANCON0 = ANCON1 = 0;

  TRISA = 0;

  TRISD = 12;

  LATA = LATD = 0;

  PORTA = PORTD = 0;

  _FreqLED = 0;

  _LedSelected = 1;
}

void delay(const unsigned int duration) {
  unsigned int ms = 0;

  EVERLOOP {
    delay_ms(1);

    ms++;

    if (PORTD != 12 || ms == duration) {
      break;
    }
  }
}

void oscLed1() {
  switch (_FreqLED) {
    case 0:
      LED_1 = STATE_LOW;
      break;

    case 1:
      LED_1 = STATE_HIGH;

      delay(2000);

      LED_1 = STATE_LOW;

      delay(2000);
      break;

    case 2:
      LED_1 = STATE_LOW;

      delay(1500);

      LED_1 = STATE_HIGH;

      delay(1500);
      break;

    case 3:
      LED_1 = STATE_HIGH;

      delay(1000);

      LED_1 = STATE_LOW;

      delay(1000);
      break;

    case 4:
      LED_1 = STATE_LOW;

      delay(750);

      LED_1 = STATE_HIGH;

      delay(750);
      break;

    case 5:
      LED_1 = STATE_HIGH;

      delay(500);

      LED_1 = STATE_LOW;

      delay(500);
      break;

    default:
      break;
  }
}

void oscLed2() {
  switch (_FreqLED) {
    case 0:
      LED_2 = STATE_LOW;
      break;

    case 1:
      LED_2 = STATE_HIGH;

      delay(2000);

      LED_2 = STATE_LOW;

      delay(2000);
      break;

    case 2:
      LED_2 = STATE_LOW;

      delay(1500);

      LED_2 = STATE_HIGH;

      delay(1500);
      break;

    case 3:
      LED_2 = STATE_HIGH;

      delay(1000);

      LED_2 = STATE_LOW;

      delay(1000);
      break;

    case 4:
      LED_2 = STATE_LOW;

      delay(750);

      LED_2 = STATE_HIGH;

      delay(750);
      break;

    case 5:
      LED_2 = STATE_HIGH;

      delay(500);

      LED_2 = STATE_LOW;

      delay(500);
      break;

    default:
      break;
  }
}

void main() {
  initMCU();

  EVERLOOP {
    if (_LedSelected == 1) {
      oscLed1();
    } else if (_LedSelected == 2) {
      oscLed2();
    }

    switch (PORTD) {
      case BUTTON_1_PRESSED:
        if (_ButtonPressed == FALSE) {
          _ButtonPressed = TRUE;

          if (_LedSelected == 1) {
            if (_FreqLED == 5) {
              _FreqLED = 0;
            } else {
              _FreqLED++;
            }
          } else {
            _LedSelected = 1;

            LED_2 = STATE_LOW;
          }
        }
        break;

      case BUTTON_2_PRESSED:
        if (_ButtonPressed == FALSE) {
          _ButtonPressed = TRUE;

          if (_LedSelected == 2) {
            if (_FreqLED == 5) {
              _FreqLED = 0;
            } else {
              _FreqLED++;
            }
          } else {
            _LedSelected = 2;

            LED_1 = STATE_LOW;
          }
        }
        break;

      case 12:
        _ButtonPressed = FALSE;
        break;

      default:
        break;
    }
  }
}