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CFAG240128L-STI-TZ not working properly

mallik

New member
hello,pl help me.....i dont know how to send a single character to CFAG240128L-STI-TZ....

this is my c code......

Code:
#include <AT89S8253.H>

/*   P3 is connected to a LED Bar to visualise the current LCD status
   P1 and P0 ist connected with the LCD
*/

void writedatum(void);
void writecommand(void);
void delay(unsigned int zeit);
void statuscheck(void);
void statuscheck_Automode(void);

sbit RST  = P1^0;  //Reset low aktiv
sbit CD   = P1^4;  //CD=0 Datenregister CD=1 StatusCommandregister
sbit CE   = P1^3;  //Display Enable low aktiv
sbit R_D  = P1^2;  //Display read low aktiv
sbit W_R  = P1^1;  //Display write low aktiv  

sbit FS   = P2^2;
sbit RV   = P2^3;
#define LCD_WIDTH        240
#define LCD_HEIGHT       128
#define FONT_WIDTH       0x06
#define FONT_HEIGHT      0x08

int i,n;   
unsigned char LCD_Status;
unsigned char Daten[14] = {0x19,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x00};													//{0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,
						  														// 0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,
						  														//0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x00};
//**********Functionen*****************

void statuscheck(void)
{   
   do {
   P0 = 0xff;   //P0 must be set high because the LCD can only pull it to low
   CD = 1;
   R_D = 0;
   CE = 0;      
   delay(5);
   LCD_Status = P0;
   CE = 1;
   R_D = 1;
   LCD_Status &= 0x03;
 //	P2 = LCD_Status;
   } while (LCD_Status != 0x03);


      
}

void statuscheck_Automode(void)
{   
   do {
   P0 = 0xff;   //P0 must be set high because the LCD can only pull it to low
   CD = 1;
   R_D = 0;
   CE = 0;      
   delay(5);
   LCD_Status = P0;
   
   CE = 1;
   R_D = 1;
   LCD_Status &= 0x08;
 //  P3 = LCD_Status;
   } while (LCD_Status != 0x08);
}

void writedatum (void)
{   
   CD = 0;
   W_R = 0;
   CE = 0;
   delay(5);
   CE = 1;
   W_R = 1;
   CD = 1; 
}

void writecommand (void)
{   
   CD = 1;
   W_R = 0;
   CE = 0;
   delay(5);
   CE = 1;
   W_R = 1;
   CD = 1; 
}



void delay(unsigned int zeit) 
{
     for (; zeit >0; zeit--);   
}

 void main()
{
   //Reset
   P2 = 0x00;
   RST = 0;
      delay(5000);
   RST = 1;
//   statuscheck();
   
   
   
   //Set graphics home adresse to 0x0000
   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x42;
   writecommand();


   //Set text home address to 0x1400
   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x14;
   writedatum();
   
   statuscheck();
   P0 = 0x40;
   writecommand();


   //Set graphics area to 0x1E;
   statuscheck();
   P0 = 0x1e;
   writedatum();

   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x40;
   writecommand();


   //Set text area to 0x1E;
   statuscheck();
   P0 = 0x1e;
   writedatum();

   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x41;
   writecommand();


   //Set OR mode
   
   statuscheck();
   P0 = 0x80;
   writecommand();

    //Set cur mode
   
   statuscheck();
   P0 = 0xA0;
   writecommand();

   

   //Set address pointer
   statuscheck();
   P0 = 0x00;
   writedatum();

   statuscheck();
   P0 = 0x00;
   writedatum();

   statuscheck();
   P0 = 0x24;
   writecommand();
   

   //****Delet Display RAM***************************
   //Auto inc on
   statuscheck();
   P0 = 0xb0;
   writecommand();

   
   for(i=0;i<819;i++)
   {
  	 statuscheck_Automode();
   	 P0 = 0x00;
   	 writedatum();
   }

   //*****Send data to display*******   
   
   //Set Text on, Graphics off, Cursor off
   statuscheck();
   P0 = 0x94;
   writecommand();
   
   //Set address pointer
   statuscheck();
   P0 = 0x00;
   writedatum();

   statuscheck();
   P0 = 0x14;
   writedatum();

   statuscheck();
   P0 = 0x24;
   writecommand();
   
   for(n=0;n<10;n++)
   {
      for(i=0;i<10;i++)
      {
	      statuscheck_Automode();
		  P0 = 0x19;                              //Daten [i];        
	      writedatum();
	  }
	  	  
   }

	   //Auto inc on
	   statuscheck();
	   P0 = 0xb2;
	   writecommand();

   		while(1);
}
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Last edited by a moderator:

mallik

New member
CFAG240128L-STI-TZ
1)i have using microcontroler at82S8253 to interfacing Toshiba T6993C,i have displayed the text ,like 99998888 to LCD ,but when i switched off and switched on +5v supply data has to be changing like 888888888 or something,even though i send 99998888.
2)and i need display single text for perticular place in LCD
3)and how to display my own created to display LCD


Code:
#include 

/*   P3 is connected to a LED Bar to visualise the current LCD status
   P1 and P0 ist connected with the LCD
*/

void writedatum(void);
void writecommand(void);
void delay(unsigned int zeit);
void statuscheck(void);
void statuscheck_Automode(void);

sbit RST  = P1^0;  //Reset low aktiv
sbit CD   = P1^4;  //CD=0 Datenregister CD=1 StatusCommandregister
sbit CE   = P1^3;  //Display Enable low aktiv
sbit R_D  = P1^2;  //Display read low aktiv
sbit W_R  = P1^1;  //Display write low aktiv  

sbit FS   = P2^2;
sbit RV   = P2^3;
#define LCD_WIDTH        240
#define LCD_HEIGHT       128
#define FONT_WIDTH       0x06
#define FONT_HEIGHT      0x08

int i,n;   
unsigned char LCD_Status;
unsigned char Daten[14] = {0x19,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x00};													//{0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,
						  														// 0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,
						  														//0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x00};
//**********Functionen*****************

void statuscheck(void)
{   
   do {
   P0 = 0xff;   //P0 must be set high because the LCD can only pull it to low
   CD = 1;
   R_D = 0;
   CE = 0;      
   delay(5);
   LCD_Status = P0;
   CE = 1;
   R_D = 1;
   LCD_Status &= 0x03;
 //	P2 = LCD_Status;
   } while (LCD_Status != 0x03);


      
}

void statuscheck_Automode(void)
{   
   do {
   P0 = 0xff;   //P0 must be set high because the LCD can only pull it to low
   CD = 1;
   R_D = 0;
   CE = 0;      
   delay(5);
   LCD_Status = P0;
   
   CE = 1;
   R_D = 1;
   LCD_Status &= 0x08;
 //  P3 = LCD_Status;
   } while (LCD_Status != 0x08);
}

void writedatum (void)
{   
   CD = 0;
   W_R = 0;
   CE = 0;
   delay(5);
   CE = 1;
   W_R = 1;
   CD = 1; 
}

void writecommand (void)
{   
   CD = 1;
   W_R = 0;
   CE = 0;
   delay(5);
   CE = 1;
   W_R = 1;
   CD = 1; 
}



void delay(unsigned int zeit) 
{
     for (; zeit >0; zeit--);   
}

 void main()
{
   //Reset
   P2 = 0x00;
   RST = 0;
      delay(5000);
   RST = 1;
//   statuscheck();
   
   
   
   //Set graphics home adresse to 0x0000
   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x42;
   writecommand();


   //Set text home address to 0x1400
   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x14;
   writedatum();
   
   statuscheck();
   P0 = 0x40;
   writecommand();


   //Set graphics area to 0x1E;
   statuscheck();
   P0 = 0x1e;
   writedatum();

   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x40;
   writecommand();


   //Set text area to 0x1E;
   statuscheck();
   P0 = 0x1e;
   writedatum();

   statuscheck();
   P0 = 0x00;
   writedatum();
   
   statuscheck();
   P0 = 0x41;
   writecommand();


   //Set OR mode
   
   statuscheck();
   P0 = 0x80;
   writecommand();

    //Set cur mode
   
   statuscheck();
   P0 = 0xA0;
   writecommand();

   

   //Set address pointer
   statuscheck();
   P0 = 0x00;
   writedatum();

   statuscheck();
   P0 = 0x00;
   writedatum();

   statuscheck();
   P0 = 0x24;
   writecommand();
   

   //****Delet Display RAM***************************
   //Auto inc on
   statuscheck();
   P0 = 0xb0;
   writecommand();

   
   for(i=0;i<819;i++)
   {
  	 statuscheck_Automode();
   	 P0 = 0x00;
   	 writedatum();
   }

   //*****Send data to display*******   
   
   //Set Text on, Graphics off, Cursor off
   statuscheck();
   P0 = 0x94;
   writecommand();
   
   //Set address pointer
   statuscheck();
   P0 = 0x00;
   writedatum();

   statuscheck();
   P0 = 0x14;
   writedatum();

   statuscheck();
   P0 = 0x24;
   writecommand();
   
   for(n=0;n<10;n++)
   {
      for(i=0;i<10;i++)
      {
	      statuscheck_Automode();
		  P0 = 0x19;                              //Daten [i];        
	      writedatum();
	  }
	  	  
   }

	   //Auto inc on
	   statuscheck();
	   P0 = 0xb2;
	   writecommand();

   		while(1);
}
 
Last edited:
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