#include <12F675.h>
#device adc=8

#FUSES NOWDT                 	//No Watch Dog Timer
#FUSES INTRC_IO              	//Internal RC Osc, no CLKOUT
#FUSES NOCPD                 	//No EE protection
#FUSES NOPROTECT             	//Code not protected from reading
#FUSES MCLR                  	//Master Clear pin enabled
#FUSES PUT                   	//Power Up Timer
#FUSES BROWNOUT              	//Reset when brownout detected

#use delay(clock=4000000)       // setup for internal 4mghz oscillator
#define LCD_DC   PIN_A0		// setup pin names for easy coding
#define LCD_RST   PIN_A1
#define ADC_IN   PIN_A2
#define LCD_DAT   PIN_A4
#define LCD_CLK   PIN_A5

void writecommand(int command);  // declare function names for compiler
void writedata(int data);
void cursorxy (byte x, byte y);
void clearram(void);
void initpic(void);
void initlcd(void);

int temp;

void main()
 {
 long int lcdram;

 initpic();
 initlcd();
 clearram();


// This is where the code goes to do stuff!
// here is a simple example

 cursorxy (3,3);	// set the cursor to position x=3 and y-3
 writedata(255);	// write a solid byte of all 8 bits

// Thats all im giving you for now!

 while(1);
 }

void writecommand(int command)
{
output_low(LCD_DC);                          // byte is a command it is read with the eight SCLK pulse
for (temp=8;temp>0;temp--)
   {
   output_low(LCD_CLK);
   if ((command&0x80)==0)
      {
      output_low(LCD_DAT);
      }
   else
      {
      output_high(LCD_DAT);
      }
   output_high(LCD_CLK);
   command=command<<1;
   }
}

void writedata(int data)
{
output_high(LCD_DC);
for (temp=8;temp>0;temp--)
   {
   output_low(LCD_CLK);
   if ((data&0x80)==0)
      {
      output_low(LCD_DAT);
      }
   else
      {
      output_high(LCD_DAT);
      }
   output_high(LCD_CLK);
   data=data<<1;
   }
}

void cursorxy (byte x, byte y)          // Nokia LCD Position cursor
{
writecommand(0x40|(y&0x07));
writecommand(0x80|(x&0x7f));
}

void clearram(void)
 {
 long int lcdram;

 cursorxy(0,0);
 for (lcdram=504;lcdram>0;lcdram--)
   writedata(0);                          // write all 504 LCDRAM addresses.
 }

VOID initpic(void)
 {
 setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
 setup_timer_1(T1_DISABLED);
 setup_comparator(NC_NC);
 setup_vref(FALSE);
 }

void initlcd(void)
 {
 output_low(LCD_RST); // reset LCD
 delay_ms(100);        // Wait 100ms
 output_high(LCD_RST);// release from reset

 writecommand(0x21);		// Activate Chip and H=1.
 writecommand(0xC2);		// Set LCD Voltage to about 7V.
 writecommand(0x13);		// Adjust voltage bias.
 writecommand(0x20);		// Horizontal addressing and H=0.
 writecommand(0x09);		// Activate all segments.
 clearram();			   // Erase all pixel on the lcdram.
 writecommand(0x08);		// Blank the Display.
 writecommand(0x0C);		// Display Normal.
 cursorxy(0,0);		   // Cursor Home.
 }