Diff: KS0108.cpp

Revision:

0:135b9a0a816e

Child:

1:a368f2688222

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/KS0108.cpp	Tue Jan 04 18:35:28 2011 +0000
@@ -0,0 +1,822 @@
+#include "KS0108.h"     
+#include <math.h>
+
+/*Constructor, initializes the lcd on the respective pins.
+ *
+ *@param pins 
+ *@param databus
+ */
+KS0108::KS0108 (PinName _RST,PinName _DI, PinName _RW, PinName _E, PinName _CS2, PinName _CS1, PinName DB0, PinName DB1, PinName DB2, PinName DB3, PinName DB4, PinName DB5, PinName DB6, PinName DB7)
+    : DB(DB0,DB1,DB2,DB3,DB4,DB5,DB6,DB7),RST (_RST),DI(_DI), RW(_RW), E(_E), CS2(_CS2), CS1(_CS1) {
+   
+    DB.output();      
+    CS1.output(); CS2.output();    
+    RST.write(0);
+    wait_us(10);  
+    RST.write(1);                     //reset screen
+     E.write(0);                       
+    ClearScreen();                     //clear display
+    WriteInstruction(LCD_ON, BOTH);     //turn on lcd       
+}
+
+
+/*Write instruction to the specific controller.
+ *
+ *@param Command command to send
+ *@param side controller side can be LEFT or RIGHT
+ *@return none
+ *
+ */
+void  KS0108::WriteInstruction(unsigned int Command,unsigned int side){
+    E.write(0); 
+    DI.write(0);
+    RW.write(0);
+        
+    SelectSide(side);
+
+    wait(0.0000003); // 300ns
+    E.write(1);
+    DB.output();
+    DB.write(Command);        
+    wait(0.0000001);
+    E.write(0);
+}
+
+/*Write data to the controller. 
+ *
+ *@param data data to send
+ *@param side controller side can be LEFT or RIGHT
+ *
+ *@return none
+ */
+void  KS0108::WriteData(unsigned int data,unsigned char side){
+       E.write(0); 
+    DI.write(1);
+    RW.write(0);
+    
+    SelectSide(side);
+
+    wait(0.0000003); // 300ns
+    E = 1;
+    DB.output();
+    DB.write(data);     
+    wait(0.0000001);
+    E = 0;
+}
+
+/*Write data to the screen on specific page and column 
+ *
+ *@param page page varies from0-7 for each side
+ *@param col col varies from 0-64 for each side 
+ *@param data info to be written on given coordinates
+ *@return none
+ *
+ */
+void KS0108::WriteDataColPag(unsigned int page, unsigned int col,  unsigned int data){
+    
+    SelectSide(NONE);  
+    col     = col%SCREEN_WIDTH;
+    page    = page%8;
+
+    if(col<(SCREEN_WIDTH/2)){
+    SelectSide(LEFT);           
+    WriteInstruction(LCD_SET_PAGE|page,LEFT);     
+    WriteInstruction(LCD_SET_ADD|col,LEFT);            //set page and column position
+    WriteData(data,LEFT);                            //output data to D0-D7
+    }else{
+    
+    SelectSide(RIGHT);
+    col -= (SCREEN_WIDTH/2);     
+    WriteInstruction(LCD_SET_PAGE|page,RIGHT);     
+    WriteInstruction(LCD_SET_ADD|col,RIGHT);        //set page and column position
+    WriteData(data,RIGHT);                            //output data to D0-D7
+    }    
+                           
+    SelectSide(NONE);
+}
+
+/*Read data from diplay
+ *
+ *@param none
+ *@return data
+ *
+ */
+unsigned int KS0108::ReadData(){
+   unsigned int data;
+   DB.input();
+   DI.write(1);
+
+   RW.write(1);
+   E.write(1);
+   wait(0.00000045);
+      
+   data = DB.read();
+   wait(0.0000001);
+   E.write(0);   
+   DB.output();
+   
+   return data;     
+}
+
+/*Read status of display , and check if it's busy
+ *
+ *@param none
+ *@return status status of display
+ * 
+ */
+unsigned int KS0108::ReadStatus(){
+   unsigned int status;
+   DB.input();
+ 
+   DI.write(0);
+   
+   RW.write(1);
+   E.write(1);
+   wait(0.00000045);
+      
+   status = DB.read();
+   E.write(0);
+   wait(0.0000001);
+   DB.output();
+   
+   return status;     
+}
+
+/*Read status of display
+ *
+ *@param side controller side can be LEFT or RIGHT
+ *@return none
+ *
+ */
+void KS0108::SelectSide(unsigned char side){
+    if(side==LEFT)
+        {CS1.write(1);CS2.write(0);}
+    else if(side==RIGHT)
+        {CS1.write(0);CS2.write(1);}
+    else if (side==BOTH)
+        {CS1.write(1);CS2.write(1);}
+    else if (side==NONE)
+        {CS1.write(0);CS2.write(0);}
+}
+
+/*Clears display
+ *
+ *@param none
+ *@return none
+ *
+ */
+void KS0108::ClearScreen(){
+     for (int col=0;col<128;col++) {
+        for (int page=0;page<8;page++)
+        {
+            WriteDataColPag(page,col,WHITE);
+        }
+    }
+}     
+
+
+/*******************************************************************************************/      
+
+
+/*Set pixel to specific location on the screen.  
+ *@param x page varies from 0-128 
+ *@param y col varies from 0-64 
+ *@param color color of pixel, can be BLACK or WHITE
+ *@return none
+ *
+ */  
+void KS0108::SetPixel(unsigned int x,  unsigned int y,  unsigned int color){    
+  
+  unsigned int position;
+   
+  SelectSide(NONE);
+  WriteInstruction(LCD_SET_ADD,NONE);    
+  
+  if(x>=64){           
+  WriteInstruction(LCD_SET_PAGE|(y/8),RIGHT);
+  WriteInstruction(LCD_SET_ADD|x,RIGHT);
+  position = ReadData();            //dummy read 
+  position = ReadData();            //actual read 
+  WriteInstruction(LCD_SET_ADD|x,RIGHT);
+  if(color==WHITE)                                
+  WriteData(position&(~(1<<(y%8))),RIGHT);         //    draw a white pixel
+  else                                            
+  WriteData(position|(1<<(y%8)),RIGHT);
+  wait_us(450);
+  }else{ 
+  WriteInstruction(LCD_SET_PAGE|(y/8),LEFT);
+  WriteInstruction(LCD_SET_ADD|x,LEFT);  
+  position = ReadData();            //dummy read 
+  position = ReadData();            //actual read 
+  WriteInstruction(LCD_SET_ADD|x,LEFT);
+  if(color==WHITE)                                
+  WriteData(position&(~(1<<(y%8))),LEFT);              
+  else                                            
+  WriteData(position|(1<<(y%8)),LEFT);
+  
+  wait_us(450);
+
+  }
+
+}       
+
+
+/*Draw a filled reactangle 
+ *
+ *@param Xaxis1 
+ *@param Yaxis1 
+ *@param Xaxis2 
+ *@param Yaxis2 
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::FullRectangle(unsigned int Xaxis1, unsigned int Yaxis1, unsigned int Xaxis2 ,unsigned int Yaxis2,unsigned int color){
+           
+    for(unsigned int i=Xaxis1;i<=Xaxis2;i++){
+        for(unsigned int j=Yaxis1;j<=Yaxis2;j++){
+            SetPixel(i,j,color);
+        } 
+    }   
+}  
+
+/*Draw an empty rectangle 
+ *@param Xaxis1 
+ *@param Yaxis1 
+ *@param Xaxis2 
+ *@param Yaxis2 
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::EmptyRectangle(unsigned int Xaxis1,unsigned int Yaxis1, unsigned int Xaxis2,unsigned int Yaxis2,unsigned int color){
+      unsigned int CurrentValue;
+
+    /* Draw the two horizontal lines */
+      for (CurrentValue = 0; CurrentValue < Xaxis2 - Xaxis1+ 1; CurrentValue++) 
+      {
+        SetPixel(Xaxis1 + CurrentValue, Yaxis1,color);
+        SetPixel(Xaxis1 + CurrentValue, Yaxis2,color);
+    }
+      
+      /* draw the two vertical lines */
+      for (CurrentValue = 0; CurrentValue < Yaxis2 - Yaxis1 + 1; CurrentValue++)    
+      {
+        SetPixel(Xaxis1, Yaxis1 + CurrentValue,color);
+        SetPixel(Xaxis2, Yaxis1 + CurrentValue,color);
+    }
+}
+
+/*Draw a rectangle with round corners
+ *@param Xaxis1 
+ *@param Yaxis1 
+ *@param Xaxis2 
+ *@param Yaxis2 
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::RoundRectangle(unsigned int x, unsigned int y, unsigned int width, unsigned int height, unsigned int radius, unsigned int color) {
+      int tSwitch, x1 = 0, y1 = radius;
+      tSwitch = 3 - 2 * radius;
+    
+    while (x1 <= y1) {
+        SetPixel(x+radius - x1, y+radius - y1, color);
+        SetPixel(x+radius - y1, y+radius - x1, color);
+
+        SetPixel(x+width-radius + x1, y+radius - y1, color);
+        SetPixel(x+width-radius + y1, y+radius - x1, color);
+        
+        SetPixel(x+width-radius + x1, y+height-radius + y1, color);
+        SetPixel(x+width-radius + y1, y+height-radius + x1, color);
+
+        SetPixel(x+radius - x1, y+height-radius + y1, color);
+        SetPixel(x+radius - y1, y+height-radius + x1, color);
+
+        if (tSwitch < 0) {
+            tSwitch += (4 * x1 + 6);
+        } else {
+            tSwitch += (4 * (x1 - y1) + 10);
+            y1--;
+        }
+        x1++;
+    }
+          
+    HLineShort(x+radius,y, width-(2*radius), color);                // top
+    HLineShort(x+radius,y+height, width-(2*radius),  color);        // bottom
+    VLineShort(x,y+radius,height-(2*radius), color);                // left
+    VLineShort(x+width, y+radius,height-(2*radius),  color);        // right
+}
+
+/*Draw a horizontal line
+ *@param Xaxis1 
+ *@param Xaxis2 
+ *@param Yaxis 
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::HLine(unsigned int Xaxis1, unsigned int Xaxis2 ,unsigned int Yaxis,unsigned int color){
+    FullRectangle(Xaxis1,Yaxis,Xaxis2,Yaxis,color);
+
+}
+
+/*Draw a horizontal line
+ *@param Xaxis1 
+ *@param Xaxis2 
+ *@param Yaxis 
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::HLineShort(unsigned int Xaxis, unsigned int Yaxis,unsigned int width ,unsigned int color){
+    FullRectangle(Xaxis,Yaxis,Xaxis+width,Yaxis,color);
+
+} 
+
+/*Draw a horizontal line
+ *@param Xaxis1 
+ *@param Xaxis2 
+ *@param Yaxis 
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */ 
+void KS0108::VLine(unsigned int Xaxis, unsigned int Yaxis1 ,unsigned int Yaxis2,unsigned int color){
+    FullRectangle(Xaxis,Yaxis1,Xaxis,Yaxis2,color);    
+}
+
+/*Draw a horizontal line
+ *@param Xaxis1 
+ *@param Xaxis2 
+ *@param Yaxis 
+ *@param color can be BLACK or WHITE
+ *@return none
+ * 
+ */
+void KS0108::VLineShort(unsigned int Xaxis,unsigned int Yaxis, unsigned int height ,unsigned int color){
+    FullRectangle(Xaxis,Yaxis,Xaxis,Yaxis+height,color);
+
+}
+
+/*
+ *Draws a line from x,y at given degree from inner_radius to outer_radius.
+ *@param Xaxis1 
+ *@param Xaxis2 
+ *@param Yaxis 
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::DegreeLine(unsigned int x, int y,unsigned int degree,unsigned int inner_radius,unsigned int outer_radius, unsigned int color){
+  int fx,fy,tx,ty;
+  fx = x + dfloor(inner_radius * sin(degree * 3.14 / 180));
+  fy = y - dfloor(inner_radius * cos(degree * 3.14 / 180));
+  tx = x + dfloor(outer_radius * sin(degree * 3.14 / 180));
+  ty = y - dfloor(outer_radius * cos(degree * 3.14 / 180));
+  SlantyLine(fx,fy,tx,ty,color);
+}
+
+/*
+ *Round a double
+ *@param double 
+ *@return value 
+ *
+ */
+double KS0108::dfloor( double value ) {
+  
+  if (value < 0.0)
+    return ceil( value );
+  else
+    return floor( value );
+    
+}
+
+/*
+ *Draws a line from x,y at given degree from inner_radius to outer_radius.
+ *@param lX1   x coordinate of one side
+ *@param lY1   y coordinate of one side
+ *@param lX2   x coordinate of other side
+ *@param lY2   y coordinate of other side
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::SlantyLine(unsigned int lX1, unsigned int lY1, unsigned int lX2,unsigned int lY2,unsigned int color){
+    long lError, lDeltaX, lDeltaY, lYStep, bSteep;       
+    
+    // A steep line has a bigger ordinate.
+    
+    if(((lY2 > lY1) ? (lY2 - lY1) : (lY1 - lY2)) > ((lX2 > lX1) ? (lX2 - lX1) : (lX1 - lX2))){
+        bSteep = 1;
+    }else {
+        bSteep = 0;
+    }
+        
+    // If line is steep, swap the X and Y coordinates.
+    if(bSteep){
+        lError = lX1;
+        lX1 = lY1;
+        lY1 = lError;
+        lError = lX2;
+        lX2 = lY2;
+        lY2 = lError;
+    }
+
+   
+    // If the starting X coordinate is larger than the ending X coordinate,
+    // then swap the start and end coordinates.
+    if(lX1 > lX2){
+        lError = lX1;
+        lX1 = lX2;
+        lX2 = lError;
+        lError = lY1;
+        lY1 = lY2;
+        lY2 = lError;
+    }
+        
+    // Compute the difference between the start and end coordinates in each    axis.      
+    lDeltaX = lX2 - lX1;
+    lDeltaY = (lY2 > lY1) ? (lY2 - lY1) : (lY1 - lY2);
+                                                                   
+    lError = -lDeltaX / 2;          // Initialize the error term to negative half the X delta.
+     
+    if(lY1 < lY2){           // Determine the direction to step in the Y axis when required.
+        lYStep = 1;
+    }else{
+        lYStep = -1;
+    }
+        
+    for(; lX1 <= lX2; lX1++){    // Loop through all the points along the X axis of the line.
+        
+        // See if this is a steep line.
+        
+        if(bSteep){
+            
+            // Plot this point of the line, swapping the X and Y coordinates.
+            
+            SetPixel(lY1, lX1,color);
+        }
+        else {           // Plot this point of the line, using the coordinates as is.            
+            SetPixel(lX1, lY1,color);
+        }                     
+        
+        // Increment the error term by the Y delta.
+        
+        lError += lDeltaY; 
+                    
+        if(lError > 0){        // See if the error term is now greater than zero.
+                     
+            lY1 += lYStep;        // Take a step in the Y axis.
+                                                                       
+            lError -= lDeltaX;     // Decrement the error term by the X delta.
+        }
+    }
+}
+
+
+/*
+ *Draws a line from x1,y1 to x2,y2
+ *@param lX1   x coordinate of one side
+ *@param lY1   y coordinate of one side
+ *@param lX2   x coordinate of other side
+ *@param lY2   y coordinate of other side
+ *@param color can be BLACK or WHITE
+ *@return none 
+ *
+ */
+void KS0108::Line(unsigned int x1, unsigned int  y1, unsigned int  x2, unsigned int  y2, unsigned int color){
+unsigned int  deltax, deltay, x,y, steep;
+int lerror, ystep;
+
+    steep = absDiff(y1,y2) > absDiff(x1,x2);   //check slope
+
+    if ( steep ){
+        swap(x1, y1);
+        swap(x2, y2);
+    }
+
+    if (x1 > x2){
+        swap(x1, x2);
+        swap(y1, y2);
+    }
+
+    deltax = x2 - x1;
+    deltay = absDiff(y2,y1);  
+    lerror = deltax / 2;
+    y = y1;
+    if(y1 < y2) ystep = 1;  else ystep = -1;
+
+    for(x = x1; x <= x2; x++){
+        if (steep) SetPixel(y,x, color); else SetPixel(x,y, color);
+           lerror -= deltay;
+        if (lerror < 0){
+            y = y + ystep;
+            lerror += deltax;
+        }
+    }
+}
+
+/*
+ *Draws an empty circle centered a x,y with radius R and specific color.
+ *@param lX1   x coordinate of one side
+ *@param lY1   y coordinate of one side
+ *@param lX2   x coordinate of other side
+ *@param lY2   y coordinate of other side
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ */
+void KS0108::EmptyCircle(unsigned int CenterX, unsigned int CenterY, unsigned int Radius,unsigned int color){
+  unsigned int y=0, x=0, d = 0;
+  int part; 
+  d = CenterY - CenterX;
+  y = Radius;
+  part = 3 - 2 * Radius;
+
+  while (x <= y) { 
+    SetPixel(CenterX + x, CenterY + y,color);  
+    SetPixel(CenterX + x, CenterY - y,color);
+    SetPixel(CenterX - x, CenterY + y,color);    
+    SetPixel(CenterX - x, CenterY - y,color);
+    SetPixel(CenterY + y - d, CenterY + x,color); 
+    SetPixel(CenterY + y - d, CenterY - x,color);
+    SetPixel(CenterY - y - d, CenterY + x,color);
+    SetPixel(CenterY - y - d, CenterY - x,color); 
+
+    if (part < 0) part += (4 * x + 6);
+    else {
+      part += (4 * (x - y) + 10);
+      y--;
+    }
+    x++;
+  }
+
+}  
+
+/*
+ * Circle fill Code is merely a modification of the midpoint
+ * circle algorithem which is an adaption of Bresenham's line algorithm
+ * http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
+ * http://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm
+ * Adapted from arduino lib
+ *
+ *@param  CenterX
+ *@param CenterY
+ *@param Radius
+ *@param color 
+ */ 
+void KS0108::FullCircle(unsigned int CenterX, unsigned int CenterY, unsigned int Radius,unsigned int color){  
+
+int f = 1 - Radius;
+int ddF_x = 1;
+int ddF_y = 2 * Radius;             //changed sign of -2
+unsigned int x = 0;
+unsigned int y = Radius;      
+    
+     //Fill in the center between the two halves
+     
+    Line(CenterX, CenterY-Radius, CenterX, CenterY+Radius, color);
+ 
+    while(x < y){
+        if(f >= 0)
+        {
+            y--;
+            ddF_y += 2;
+            f += ddF_y;
+        }
+        x++;
+        ddF_x += 2;
+        f += ddF_x;    
+
+        /*
+         * Now draw vertical lines between the points on the circle rather than
+         * draw the points of the circle. This draws lines between the 
+         * perimeter points on the upper and lower quadrants of the 2 halves of the circle.
+         */
+
+        Line(CenterX+x, CenterY+y, CenterX+x, CenterY-y, color);
+        Line(CenterX-x, CenterY+y, CenterX-x, CenterY-y, color);
+        Line(CenterX+y, CenterY+x, y+CenterX, CenterY-x, color);
+        Line(CenterX-y, CenterY+x, CenterX-y, CenterY-x, color);
+      }
+}                 
+
+
+/*
+ *Draws a line from x,y at given degree from inner_radius to outer_radius.
+ *@param lX1   x coordinate of one side
+ *@param lY1   y coordinate of one side
+ *@param lX2   x coordinate of other side
+ *@param lY2   y coordinate of other side
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ * Ported the algorithm found at http://homepage.smc.edu/kennedy_john/belipse.pdf
+ * 
+ */
+void KS0108::PlotEllipse(long CX, long  CY, long XRadius,long YRadius, int color) {
+
+
+  long X, Y;
+  long XChange, YChange;
+  long EllipseError;
+  long TwoASquare,TwoBSquare;
+  long StoppingX, StoppingY;
+  TwoASquare = 2*XRadius*XRadius;
+  TwoBSquare = 2*YRadius*YRadius;
+  X = XRadius;
+  Y = 0;
+  XChange = YRadius*YRadius*(1-2*XRadius);
+  YChange = XRadius*XRadius;
+  EllipseError = 0;
+  StoppingX = TwoBSquare*XRadius;
+  StoppingY = 0;
+
+  while ( StoppingX >=StoppingY ) //first set of points,y'>-1
+  {
+    Plot4EllipsePoints(CX,CY,X,Y,color);
+    Y++;
+    StoppingY=StoppingY+ TwoASquare;
+    EllipseError = EllipseError+ YChange;
+    YChange=YChange+TwoASquare;
+    if ((2*EllipseError + XChange) > 0 ) {
+      X--;
+      StoppingX=StoppingX- TwoBSquare;
+      EllipseError=EllipseError+ XChange;
+      XChange=XChange+TwoBSquare;
+    }
+  }
+
+  Y = YRadius;
+  X = 0;
+  YChange = XRadius*XRadius*(1-2*YRadius);
+  XChange = YRadius*YRadius;
+  EllipseError = 0;
+  StoppingY = TwoASquare*YRadius;
+  StoppingX = 0;
+
+  while ( StoppingY >=StoppingX ) //{2nd set of points, y'< -1}
+  {
+    Plot4EllipsePoints(CX,CY,X,Y,color);
+    X++;
+    StoppingX=StoppingX + TwoBSquare;
+    EllipseError=EllipseError+ XChange;
+    XChange=XChange+TwoBSquare;
+    if ((2*EllipseError + YChange) > 0 ) {
+      Y--;
+      StoppingY=StoppingY- TwoASquare;
+      EllipseError=EllipseError+ YChange;
+      YChange=YChange+TwoASquare;
+    }
+  }
+} 
+
+
+/*
+ *Helper function for drawing an ellipse.
+ *@param CX   x coordinate of one side
+ *@param CY   y coordinate of one side
+ *@param X   x coordinate of other side
+ *@param Y   y coordinate of other side
+ *@param color can be BLACK or WHITE
+ *@return none
+ *
+ * Portted the algorithm found at http://homepage.smc.edu/kennedy_john/belipse.pdf
+ * 
+ */
+void KS0108::Plot4EllipsePoints(long CX,long  CY, long X, long Y, int color){
+  SetPixel(CX+X, CY+Y, color); //{point in quadrant 1}
+  SetPixel(CX-X, CY+Y, color); //{point in quadrant 2}
+  SetPixel(CX-X, CY-Y, color); //{point in quadrant 3}
+  SetPixel(CX+X, CY-Y, color); //{point in quadrant 4}
+}
+
+/***********************************************************************************/
+
+/*
+ *Draws an image on screen.
+ *@param PictureData  128x64 image array
+ *@return none
+ *
+ * 
+ */
+void KS0108::FullScreenBMP (unsigned char *PictureData){
+    unsigned int Page=0;
+      unsigned int Column=0;
+      
+    // Draw left side of the picture 
+    SelectSide(LEFT);
+      for (Page = 0; Page < 8; Page++){                     /* loop on the 8 pages */            
+              WriteInstruction(LCD_SET_PAGE | Page,LEFT); /* Set the page */
+              for (Column = 0; Column < 64; Column++)
+            WriteData(PictureData[(128*Page)+Column],LEFT);
+    }
+    
+    // Draw right side of the picture
+    SelectSide(RIGHT);
+      for (Page = 0; Page < 8; Page++){                     /* loop on the 8 pages */
+    
+              WriteInstruction(LCD_SET_PAGE| Page,RIGHT); /* Set the page */
+              for (Column = 64; Column < 128; Column++)
+            WriteData(PictureData[(128*Page)+Column],RIGHT);
+    }    
+}
+
+   
+/******************************************************************************************/
+
+/*
+ *Moves cursor to x,y.
+ *@param x   x coordinate
+ *@param y   y coordinate 
+ *@return none
+ * 
+ */
+void KS0108::CursorXY(unsigned int x, unsigned int y){   
+  if( (x > SCREEN_WIDTH-1) || (y > SCREEN_HEIGHT-1) )    // exit if coordinates are not legal
+    return;  
+
+  if(y<(SCREEN_WIDTH/2)){
+  SelectSide(LEFT);
+  WriteInstruction(LCD_SET_PAGE|(y/8),RIGHT);
+  WriteInstruction(LCD_SET_ADD|x,RIGHT);
+  }else{ 
+  SelectSide(RIGHT); 
+  WriteInstruction(LCD_SET_PAGE|(y/8),RIGHT);
+  WriteInstruction(LCD_SET_ADD|x,RIGHT); 
+  }     
+}
+
+/*
+ *Print a char on the specified coordinates
+ *@param page   row coordinate 
+ *@param col   y coordinate 
+ *@param c   character from systemfont
+ *@return none
+ *
+ * 
+ */ 
+void KS0108::Putc (int page, int col,unsigned char c) {
+    if (c>31 && c<127){
+    for(int i=0;i<5;i++){
+        WriteDataColPag(page,col+i,System5x7[((c-32)*5+i)+6]);
+     }
+    }
+}
+
+
+/*
+ *Print a string on the specified coordinates.
+ *@param x   row coordinate 
+ *@param y   y coordinate 
+ *@param str   character string 
+ *@return none
+ *
+ * 
+ */
+void KS0108::PutString(unsigned int x, unsigned int y,char* str){
+
+    while(*str != 0){
+     Putc(x,y,*str);
+     str++;
+     y+=System5x7[2];
+    }
+
+}
+
+
+
+/*
+ *Print a float on the specified coordiantes.
+ *@param val float number
+ *@param x  row coordinate
+ *@param y  y coordinate
+ *@return none
+ *
+ * 
+ */
+void KS0108::PrintFloat(float val, unsigned int x,unsigned int y){
+   char buf[20] = {};  // prints up to 20 digits         
+   sprintf(buf,"%f",val);
+   PutString(x,y,buf);
+
+}
+
+/*
+ *Print an integer on th specified coordinates.
+ *@param val integer number
+ *@param x row coordinate
+ *@param y column coordinate 
+ *@return none
+ * 
+ */
+void KS0108::PrintInteger(int val,unsigned int x,unsigned int y){
+   char buf[20] = {};  // prints up to 20 digits         
+   sprintf(buf,"%d",val);
+   PutString(x,y,buf);
+}
+
+
+
+