128x64 KS0107/08 LCD

Hi everybody,

I am doing programming for 128x64 KS0107/08 Graphical LCD using Rabbit
2000 microprocessor. I am new to this LCD. I couldn't find how to make a
pixel on. I tried with the program as shown below.. But I am not getting
display.

On the other hand, I didn't know what will be character size, actually
what will be the procedure to know the size of a character..

Kindly suggest me any idea or a sample program to display a character...




#class auto

/* commands for port settings */
#define SET_RS() BitWrPortI(PDDR,&PDDRShadow,1,0) //SET RS
#define CLR_RS() BitWrPortI(PDDR,&PDDRShadow,0,0) //CLR RS
#define SET_EN() BitWrPortI(PDDR,&PDDRShadow,1,1) //SET EN
#define CLR_EN() BitWrPortI(PDDR,&PDDRShadow,0,1) //CLR EN
#define SET_CS1() BitWrPortI(PDDR,&PDDRShadow,1,2) //SET CS1
#define CLR_CS1() BitWrPortI(PDDR,&PDDRShadow,0,2)
//CLR CS1
#define SET_CS2() BitWrPortI(PDDR,&PDDRShadow,1,3) //SET CS2
#define CLR_CS2() BitWrPortI(PDDR,&PDDRShadow,0,3) //CLR CS2
#define LCD_CS1() CLR_CS2();SET_CS1();
#define LCD_CS2() SET_CS2();CLR_CS1();

/* commands for LCD */
#define DISPLAYON 0x3F /* display on */
#define SETPAGEADR 0xB8
/* x coordinate from 0-128 */
#define SETBYTEADR 0x40 /* y coordinate from 0-64 */
#define SETSTARTADR 0xC0 /* start line (z - address) */

/* function prototypes */
void LcdInit(void);
void LcdWriteCmd(unsigned char );
void LcdWriteData(unsigned char );
void LcdDelay(void);
void LcdClear(void);
void LcdSetXY(int , int );

unsigned int i,j,x,y,row,col;

void main(void) /* Main Function */
{
WrPortI ( PDFR,NULL,0x00 );
WrPortI ( PDDCR,NULL,0xFF );
WrPortI ( PDDDR,NULL,0xFF );

LcdInit();

LcdClear();

printf("\n MAIN LOOP");

for(row = 0; row < 8 ; row++ ) {
for(col = 0; col < 128 ; col++){
LcdSetXY(row,col);
LcdWriteData(0xFF);
}
}
LcdClear();

while(1);
}

void LcdInit(void) /* initialization of LCD */
{
printf("\n Init function ");

LCD_CS1();
LcdWriteCmd(DISPLAYON);

LCD_CS2();
LcdWriteCmd(DISPLAYON);
}

void LcdWriteCmd(unsigned char cmd) /* send command to LCD
*/
{
printf("\n IN CMD ");
CLR_RS();
WrPortI(PADR,&PADRShadow,(PADRShadow | cmd));
SET_EN();
LcdDelay();
CLR_EN();
}

void LcdWriteData(unsigned char data) /* send data to LCD
*/
{
printf("\n In DATA ");
SET_RS();
WrPortI(PADR,&PADRShadow,(PADRShadow | data));
SET_EN();
LcdDelay();
CLR_EN();
}

void LcdDelay(void) /* delay function */
{
for(i=0;i<10;i++){
for(j=0;j<50;j++);
}
}

void LcdClear(void) /* clear screen LCD */
{
for(x=0; x<8; x++){
for(y = 0; y < 128; y++){
LcdSetXY(x,y);
LcdWriteData(0x00);
}
}
}

void LcdSetXY(int x, int y) /* set pixel at a given pos.
*/
{
if( y < 64 ){
LCD_CS1();
if(x < 8)
LcdWriteCmd(SETPAGEADR | x);
LcdWriteCmd(SETBYTEADR | y);
}
else {
LCD_CS2();
if(x < 8)
LcdWriteCmd(SETPAGEADR | x);
LcdWriteCmd(SETBYTEADR | y);
}
}


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