ra8835.c

GLCD WG320240C0-FMIVZ#000 driven by STR912FAW44.

// Parameters: unsigned char x, unsigned char y
// Return: none
// Description: Go to position.
//------------------------------------------------------------------------------
void Gotoxy(unsigned char x, unsigned char y)
{
  LCDCmdWrite(0x46);    //Set Cursor Address
  LCDDataWrite(x);
  LCDDataWrite(y);  
}
//------------------------------------------------------------------------------
// Function Name: LCDMemWrite
// Parameters: unsigned char x, unsigned char y
// Return: none
// Description: Go to position.
//------------------------------------------------------------------------------
void LCDMemWrite(unsigned char x, unsigned char y)
{
  LCDCmdWrite(0x46);    //Set Cursor Address
  LCDDataWrite(x);
  LCDDataWrite(y);  
  LCDCmdWrite(0x42);    //Write to memory
}
//------------------------------------------------------------------------------
// Function Name: InitDisplay
// Parameters: none
// Return: none
// Description: function to initialize the graphics display
//------------------------------------------------------------------------------
void InitDisplay(void)
{    
  LCDIOInit ();
  
  ResetDisplay();

  LCDCmdWrite(0x40);    //Writng into command register System set
  LCDDataWrite(0x30);	//P1  M0: Internal CG ROM
                        //    M1: CG RAM is 32 characters maximum
                        //    M2: 8-pixel character height
                        //    W/S: Two-panel drive
                        //    IV: No top-line compensation
  LCDDataWrite(0x87);	//P2  FX: Horizontal character size = 8 pixels
                        //    WF: Two-frame AC drive
  LCDDataWrite(0x07);   //P3  FY: Vertical character size = 8 pixels
  LCDDataWrite(0x27);	//P4  C/R: 39 display addresses per line
  LCDDataWrite(0x2f);	//P5  TC/R: Total address range per line = 
                        //    fOSC =  MHz, fFR =  Hz
  LCDDataWrite(0xEF);	//P6  L/F: 239 display lines
  LCDDataWrite(0x28);	//P7  APL: Virtual screen horizontal size is 40 addresses
  LCDDataWrite(0x00);	//P8  APH: Virtual screen horizontal size is 40 addresses

  LCDCmdWrite(0x44);    //Scrolling
  LCDDataWrite(0x00);	//P1  First screen block start address set to 0x0000
  LCDDataWrite(0x00);	//P2  First screen block start address set to 0x0000
  LCDDataWrite(0xef);	//P3  Display lines in first screen block = 240
  LCDDataWrite(0x00);	//P4  Second screen block start address set to 0x1000
  LCDDataWrite(0x10);	//P5  Second screen block start address set to 0x1000
  LCDDataWrite(0xef);	//P6  Display lines in second screen block = 240
  LCDDataWrite(0x00);	//P7  Third screen block start address set to 0x0000
  LCDDataWrite(0x00);	//P8  Third screen block start address set to 0x0000
  LCDDataWrite(0x00);	//P9  Fourth screen block start address set to 0x0000
  LCDDataWrite(0x00);	//P10 Fourth screen block start address set to 0x0000

  LCDCmdWrite(0x5a);    //HDOT
  LCDDataWrite(0x00);
  
  LCDCmdWrite(0x5b);        //OVERLAY
  LCDDataWrite(0x01);       //  MX 1, MX 0: Inverse video superposition
                        //  DM 1: First screen block is text mode
                        //  DM 2: Third screen block is text mode
  

  LCDCmdWrite(0x58);        //Display off
  LCDDataWrite(0x14);       //FC1, FC0: Flash cursor at 2 Hz
                        //FP1, FP0: First screen block ON
                        //FP3, FP2: Second and fourth screen blocks ON
                        //FP5, FP4: Third screen block ON

  ClearGraphics();
  ClearText();
  
  LCDCmdWrite(0x5d);        //Cursor type  CSRFORM
  LCDDataWrite(0x05);       //Horizontal cursor size = 6 pixels
  LCDDataWrite(0x88);       //Vertical cursor size = 9 pixels
  
  LCDCmdWrite(0x59);	// Display on
  LCDDataWrite(0x14);
  
  LCDCmdWrite(0x4c);        // Cursor direction  
}
//------------------------------------------------------------------------------
// Function Name: LCDChar
// Parameters: char Ch,unsigned short Line,unsigned short Pos
// Return: none
// Description: function to initialize the graphics display
//------------------------------------------------------------------------------
void LCDChar(char Ch,unsigned short Line,unsigned short Pos)
{
  unsigned char Lobyte = 0x00,Hibyte = 0x00;
  Line = Line * 40 + Pos;
  Lobyte = Line & 0xff;
  Hibyte = (Line>>8) & 0xff;
  LCDMemWrite(Lobyte,Hibyte);
  LCDDataWrite(Ch);
}
//------------------------------------------------------------------------------
// Function Name: LCDText
// Parameters: unsigned char ch,unsigned short lineno,unsigned short charpos
// Return: none
// Description: function to initialize the graphics display
//------------------------------------------------------------------------------
void LCDText(char *Str,unsigned short Line,unsigned short Pos)
{
  unsigned char Lobyte = 0x00,Hibyte = 0x00;
  Line = Line * 40 + Pos;
  Lobyte = Line & 0xff;
  Hibyte = (Line>>8) & 0xff;
  LCDMemWrite(Lobyte,Hibyte);
  while( *Str )
    LCDDataWrite(*Str++);
}
//------------------------------------------------------------------------------
// Function Name: LCDputPixel
// Parameters: unsigned short x,unsigned short y
// Return: none
// Description: function to initialize the graphics display
//------------------------------------------------------------------------------
void LCDputPixel(unsigned short x,unsigned short y,unsigned short status)
{
  unsigned char setbyte = 0;
  unsigned short addr  = 0x1000 + (40 * y) + (x/8); 
  
  Gotoxy((unsigned char)addr&0xff,(unsigned char)(addr>>8)&0xff);
  setbyte = LCDDataRead();  
  
  if(status)
    setbyte |= (1 << (7 - (x % 8)));
  else
    setbyte &= ~(1 << (7 - (x % 8)));
  
  LCDMemWrite(addr&0xff,(addr>>8)&0xff);
  LCDDataWrite(setbyte);
}
//------------------------------------------------------------------------------
// Function Name: LCDHorzLine
// Parameters: unsigned short left, unsigned short right,unsigned short row,unsigned short set
// Return: none
// Description: function to Draws a line into the display memory starting at 
//left going to right, on the given row. No runtime error checking is performed.  
//It is assumed that left is less than right.This is an indirect write routine.
//------------------------------------------------------------------------------
void LCDHorzLine(unsigned short left, unsigned short right,unsigned short row,unsigned short set)
{
  unsigned short addr,i;
  row = row*40;
  for(i=left;i<=right;i++)
  {
    addr = 0x1000 + row + i;
    LCDMemWrite(addr&0xff,(addr>>8)&0xff);
    if(set)
      LCDDataWrite(0xff);
    else
      LCDDataWrite(0x00);
  }
}
//------------------------------------------------------------------------------
// Function Name: LCDVertLine
// Parameters: unsigned short top, unsigned short bottom,unsigned short column,unsigned short set
// Return: none
// Description: function to Draws a vertical line into display memory starting 
//at the top going to the bottom in the given column. No runtime error checking 
//is performed. It is assumed that top is less than bottom and that the column 
//is in range.
//------------------------------------------------------------------------------
void LCDVertLine(unsigned short top, unsigned short bottom,unsigned short column,unsigned short set)
{
  unsigned short addr,i;
  top = top*40;
  bottom = bottom*40;
  for(i=top;i<bottom;i+=40)
  {
    addr = 0x1000 + i + column;
    LCDMemWrite(addr&0xff,(addr>>8)&0xff);
    if(set)
      LCDDataWrite(0x80);
    else
      LCDDataWrite(0x01);
  }
}
//------------------------------------------------------------------------------
// Function Name: LCDBox
// Parameters: unsigned short left, unsigned short top,unsigned short right, unsigned short bottom
// Return: none
// Description: function to Draw a box in display memory starting at the 
//left/top and going to the right/bottom. No runtime error checking is performed.
//It is assumed that left is less than right and that top is less than bottom.
//------------------------------------------------------------------------------
void LCDBox(unsigned short left, unsigned short top,unsigned short right, unsigned short bottom)
{
  // to draw a box requires two vertical lines
  LCDVertLine(top+1,bottom,left,1) ;
  LCDVertLine(top+1,bottom,right,0) ;
  // and two horizonal lines 
  LCDHorzLine(left,right,top,1) ;
  LCDHorzLine(left,right,bottom,1) ;
}
//------------------------------------------------------------------------------
// Function Name: LCDBox
// Parameters: unsigned short left, unsigned short top,unsigned short right, unsigned short bottom,unsigned short Fill
//Fill = 1/0
// Return: none
// Description: function to Fill a box in display memory starting at the 
//left/top and going to the right/bottom. No runtime error checking is performed.
//It is assumed that left is less than right and that top is less than bottom.
//------------------------------------------------------------------------------
void LCDFillBox(unsigned short left, unsigned short top,unsigned short right, unsigned short bottom,unsigned short Fill)
{
  unsigned short i;
  for(i=top;i<bottom;i++)
  LCDHorzLine(left,right,i,Fill);
}
//------------------------------------------------------------------------------
// Function Name: DisplayClock
// Parameters: None
// Return: none
// Description: Displays the Date & time on warning area
//------------------------------------------------------------------------------
void DisplayClock(void)
{
  //Read RTC Date
    RTC_GetDate(BINARY,&Gc.ActDate);    
    //Display RTC Date
    sprintf(Buffer,"%02d:%02d:%02d%02d",Gc.ActDate.day,Gc.ActDate.month,Gc.ActDate.century,Gc.ActDate.year);
    LCDText(Buffer,28,7);
    
    LCDText(Day[Gc.ActDate.weekday-1],28, 18);    

    //Read RTC Time
    RTC_GetTime(BINARY,&Gc.ActTime);    
    //Display RTC Time
    sprintf(Buffer,"%02d:%02d:%02d",(Gc.ActTime.hours>=13)?Gc.ActTime.hours-12:Gc.ActTime.hours,Gc.ActTime.minutes,Gc.ActTime.seconds);
    LCDText(Buffer,28,23);
    
    sprintf(Buffer,"%s",(Gc.ActTime.hours>=12)?"PM":"AM");
    LCDText(Buffer,28,32);
}    
//------------------------------------------------------------------------------
// Function Name: Draw screen
// Parameters: none
// Return: none
// Description: function to Draw screen
//------------------------------------------------------------------------------
void DrawScreen(void)
{
  CurrScreen = Screen ;
  PrevScreen = CurrScreen ;
  ClearGraphics();
  ClearText();  

  LCDBox(0,0,39,239);
  LCDBox(1,20,38,220);  
  LCDBox(2,40,37,200);
  LCDText("   Processor : STR912FAW44   ",11,6);
  LCDText("  LCD : WG320240C0-FMIVZ#000 ",13,6); 
  LCDText(" DISPLAY CONTROLLER : RA8835 ",17,6);
  LCDText("     IDE : IAR WORKBENCH     ",19,6);  
  LCDFillBox(4,60,35,180,1);
}