Interfacing Graphics LCD (GLCD) With 8051 Microcontroller by Displaying String on It123

Interfacing Interfacing Graphics Graphics LCD (GLCD) with 8051 Microcontro Microcontroller ller by Disp... Disp...

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How to display string on Graphics LCD

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/*Program to print text on Graphics LCD*/

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#include #include #define dport P2 #include "font.h" #include "font2.h" sbit sbit sbit sbit sbit

rs=P1^0; rw=P1^1; en=P1^2; cs1=P1^3; cs2=P1^4;

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unsigned char c; unsigned char z=0; void ctrloff() { rs=0; rw=0; en=0; cs1=0; cs2=0; } //DELAY FUNCTION void delay(unsigned int j) {

03 07 2012 12 49

Interfacing Graphics LCD (GLCD) with 8051 Microcontroller by Disp...

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unsigned int i; for(i=0;i
//0x40 represents Column 0

//0x40 represents Column 0

void setpage(unsigned char x) { ctrloff();

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dport= 0xb8|x; cs1=1; cs2=1; rs=0; rw=0; en=1; _nop_(); en=0;


//0xb8 represents Page 0

} //Function to Scroll Strings void setstartline(unsigned char z) { ctrloff(); dport=0xc0|z; //0xc0 represents Line 0 cs1=1; cs2=1; rs=0; rw=0; en=1; _nop_(); en=0; } void lcddata(unsigned char *value,unsigned int limit) { unsigned int i; for(i=0;i127) return; } }

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void lcdputs1(unsigned char y,unsigned char x,unsigned char *str) { unsigned char i; unsigned int a; setcolumn(y); setpage(x); for(i=0;str[i]!=0;i++) { a=(*(str+i)); a*=8; lcddata(&Character8x8[a],8); } } void lcdputs2(unsigned char y,unsigned char x,unsigned char *str) { unsigned char i; unsigned int a; setcolumn(y); setpage(x); for(i=0;str[i]!=0;i++) { a=(*(str+i)-32); a*=5; lcddata(&font5x7[a],5); } } void clrlcd() { unsigned char i,j; for (i=0;i < 8;i++) { setpage(i); setcolumn(0); for (j= 0 ;j < 128; j++) lcddata(&z,1); } } unsigned unsigned unsigned unsigned

char char char char

ar0[]="*************** "; ar1[]="ENGINEERSGARAGE"; ar2[]="Inspiring Creations ar3[]="************** ";

";

void main() { unsigned char i; clrlcd(); displayon(); setcolumn(0); setpage(0); lcdputs1(0,1,ar0); lcdputs1(0,2,ar1); lcdputs2(0,3,ar2); lcdputs1(0,4,ar3);

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nterfacing Graphics LCD (GLCD) with 8051 Microcontroller by Disp...


delay(65000); delay(65000); for(i=0;i<5;i++) { displayoff(); delay(65000); displayon(); delay(65000); delay(65000); } i=0; while(1) { setstartline(i++); delay(40000); }

//Function to Scroll Strings

}

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Interfacing Graphics LCD (GLCD) With 8051 Microcontroller by Displaying String on It123

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