Seven Segment Display Function

#include "seven_segment_display.h"

#define TIMER_RATE TMRS12_RATE_1MS

#define OUTPUT 0xFF

//data Port M2

//clock Port M3

void delay(unsigned int time_in_ms)

{

int time;

time = TMRS12_GetTime();

while((TMRS12_GetTime()-time) < time_in_ms); // wait for specified time

}

void ClockPulse( void)

{

unsigned int i = 0;

PTM = PTM | BIT3HI; //set port M2 to HI (clock line)

for (i=0; i<100; i++); //wait for at least 1ms

PTM = PTM & BIT3LO; //set port M2 to LO (clock line)

for (i=0; i<100; i++); //wait for at least 1ms

}

void DataHigh( void)

{

PTM = PTM | BIT2HI; // set data line high

ClockPulse(); // pulse clock

}

void DataLow ( void)

{

PTM = PTM & BIT2LO; // set data line low

ClockPulse(); // pulse clock

}

void ClearDisplay( void)

{

int i;

for(i = 0; i<8; i++) // set all segments of display to high (clear)

DataHigh();

}

void DisplayInit( void)

{

DDRM = DDRM | BIT2HI; // initialize M2 and M3 to be outputs

DDRM = DDRM | BIT3HI;

}

void Display(int Number) // display appropriate number

{

ClearDisplay();

if (Number == 11)

{

DataHigh();

DataHigh();

DataHigh();

DataHigh();

DataLow();

DataHigh();

DataHigh();

DataHigh();

}

if (Number == 9)

{

DataLow();

DataLow();

DataLow();

DataLow();

DataHigh();

DataLow();

DataLow();

DataHigh();

}

if (Number == 8)

{

DataLow();

DataLow();

DataLow();

DataLow();

DataHigh();

DataLow();

DataLow();

DataLow();

}

if (Number == 7)

{

DataHigh();

DataLow();

DataLow();

DataLow();

DataHigh();

DataLow();

DataHigh();

DataHigh();

}

if (Number == 6)

{

DataLow();

DataLow();

DataLow();

DataHigh();

DataHigh();

DataLow();

DataLow();

DataLow();

}

if (Number == 5)

{

DataLow();

DataLow();

DataLow();

DataHigh();

DataHigh();

DataLow();

DataLow();

DataHigh();

}

if (Number == 4)

{

DataLow();

DataLow();

DataHigh();

DataLow();

DataHigh();

DataLow();

DataHigh();

DataHigh();

}

if (Number == 3)

{

DataLow();

DataHigh();

DataLow();

DataLow();

DataHigh();

DataLow();

DataLow();

DataHigh();

}

if(Number == 2)

{

DataLow();

DataHigh();

DataLow();

DataLow();

DataHigh();

DataHigh();

DataLow();

DataLow();

}

if (Number == 1)

{

DataHigh();

DataHigh();

DataHigh();

DataLow();

DataHigh();

DataLow();

DataHigh();

DataHigh();

}

if (Number == 0)

{

DataHigh();

DataLow();

DataLow();

DataLow();

DataHigh();

DataLow();

DataLow();

DataLow();

}

printf("in display function: %i \r\n", Number);

}

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