Svenska ElektronikForumet

Kod: Markera allt

//*** function dispFig ***
//*** Takes a character ((-2)-9), a display number
//*** and wether a dot should be displayed or not. 
//*** -1 is a minus sign and -2 is no LEDs lit.
//*** All displays are reset before setting the new display.
void dispFig(int figure, int displayNo, int dot)
{
    //pins to segments
    //RB8 = g
    //RB7 = f
    //RB6 = e
    //RB5 = d
    //RC5 = c
    //RC4 = b
    //RC3 = a
    //RA2 = dp
    //DISP1-5 = RB9, RC6-9


    //resetting all displays ground connections
    _RB9 = 0;
	_RC6 = 0;
	_RC7 = 0;
	_RC8 = 0;
	_RC9 = 0;


    switch (displayNo)
    {
    case 1:
        _RB9 = 1;
        break;
    case 2:
        _RC6 = 1;
        break;
    case 3:
        _RC7 = 1;
        break;
    case 4:
        _RC8 = 1;
        break;
    case 5:
        _RC9 = 1;
        break;
    default:
        break;
    }


    //sets the different display leds
    switch (figure)
    {
    case -1: //-sign
    {
        _RB8 = 1;
        _RC3 = _RC4 = _RC5 = _RB5 = _RB6 = _RB7  = 0;
        break;
    } //empty, no leds lit
    case -2:
    {
        _RC3 = _RC4 = _RC5 = _RB5 = _RB6 = _RB7 = _RB8 = 0;
        break;
    }
    case 0:
    {
        _RB8 = 0;
        _RC3 = _RC4 = _RC5 = _RB5 = _RB6 = _RB7  = 1;
        break;
    }
    case 1:
    {
        _RC3 = _RB5 = _RB6 = _RB7 = _RB8 = 0;
        _RC4 = _RC5 = 1;
        break;
    }
    case 2:
    {
        _RC5 =_RB7 = 0;
        _RC3 = _RC4 = _RB5 = _RB6 = _RB8 = 1;
        break;
    }
    case 3:
    {
        _RB6 = _RB7 = 0;
        _RC3 = _RC4 = _RC5 = _RB5  = _RB8 = 1;
        break;
    }
    case 4:
    {
        _RC3 = _RB5 = _RB6 = 0;
        _RC4 = _RC5 = _RB7 = _RB8 = 1;
        break;
    }

    case 5:
    {
        _RC4 = _RB6 = 0;
        _RC3 = _RC5 = _RB5  = _RB7 = _RB8 = 1;
        break;
    }

    case 6:
    {
        _RC4 =  0;
        _RC3 =  _RC5 = _RB5 = _RB6 = _RB7 = _RB8 = 1;
        break;
    }

    case 7:
    {
        _RB5 = _RB6 = _RB7 = _RB8 = 0;
        _RC3 = _RC4 = _RC5 = 1;
        break;
    }
    case 8:
    {
		_RB5 = _RB6 = _RB7 = _RB8 = _RC3 = _RC4 = _RC5 = 1;
        break;
    }
    default:
    {
        break;
    }
    }


    if (dot)
        _RA4 = 1;
    else
        _RA4 = 0;




    return;
}

Kod: Markera allt

#define NUMBER_DIGITS 5

byte Buffer[NUMBER_DIGITS]; // Avsätt en buffer där varje byte motsvarar ett displaymodul. I detta fall 5 bytes.
* Startat en timer-interrupt på 70Hz * antal tecken, i detta fall alltså 350Hz.

#define DIGIT_0 RB9
#define DIGIT_1 RC6
#define DIGIT_2 RC7
#define DIGIT_3 RC8
#define DIGIT_4 RC9
#define SEG_A   RC3
#define SEG_B   RC4
#define SEG_C   RC5
#define SEG_D   RB5
#define SEG_E   RB6
#define SEG_F   RB7
#define SEG_G   RB8
#define SEG_DP  RA2

// All skrivning till displayen görs vid att lägga rätt data i buffern, utläsningen sker då i timer-interrupten.

Timer_ISR:
static byte Counter, Show;
; Gör allt som behövs för att rensa interrupt-flagga och så, ger lite tid till att döda ghosting
  DIGIT_0 = 0; Nolla alla siffror
  DIGIT_1 = 0; Nolla alla siffror
  DIGIT_2 = 0; Nolla alla siffror
  DIGIT_3 = 0; Nolla alla siffror
  DIGIT_4 = 0; Nolla alla siffror
  Show = Buffer[Counter++];
  if(Counter >= NUMBER_DIGITS) Counter = 0;
  if(Show & 0x01) SEG_A = 1;
  else SEG_A = 0;
  if(Show & 0x02) SEG_B = 1;
  else SEG_B = 0;
  if(Show & 0x04) SEG_C = 1;
  else SEG_C = 0;
  if(Show & 0x08) SEG_D = 1;
  else SEG_D = 0;
  if(Show & 0x10) SEG_E = 1;
  else SEG_E = 0;
  if(Show & 0x20) SEG_F = 1;
  else SEG_F = 0;
  if(Show & 0x40) SEG_G = 1;
  else SEG_G = 0;
  if(Show & 0x80) SEG_DP = 1;
  else SEG_DP = 0;
  switch(Counter)
    { // Remember that it's counted up
    case 0: DIGIT_4 = 1; break;
    case 1: DIGIT_0 = 1; break;
    case 2: DIGIT_1 = 1; break;
    case 3: DIGIT_2 = 1; break;
    case 4: DIGIT_3 = 1; break;
    }

Kod: Markera allt

int main()
{
    init();

    while (1)
    {
   dispFig(7, 2, 0);
    }
    return 0;
}

Kod: Markera allt

int main()
{
    long int j;
    init();

    while (1)
    {
   dispFig(7, 2, 0);
for (j = 0; j < 1000; j++)
{
}
	dispFig(8, 1, 0);
for (j = 0; j < 1000; j++)
{
}

    }
    return 0;
}

Kod: Markera allt

int main()
{
    init();

    while (1)
    {
   dispFig(7, 2, 0);
    }
    return 0;
}

Kod: Markera allt

int main()
{
    long int j;
    init();

    while (1)
    {
   dispFig(7, 2, 0);
	for (j = 0; j < 1000; j++)
	{
	}
   dispFig(8, 1, 0);
	for (j = 0; j < 1000; j++)
	{
	}

    }
    return 0;
}

Kod: Markera allt

    case 6:
    {
        _RC4 =  0;
		__delay32(100);
        _RC3 = 1; 
		__delay32(100);
		_RC5 = 1;
		__delay32(100);
		_RB5 = 1;
		__delay32(100);
		_RB6 = 1;
		__delay32(100);
		_RB7 = 1;
		__delay32(100);
		_RB8 = 1;
        break;
    }