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You are here: Home / Replies / Well, in theory that is the

Well, in theory that is the

|

Microcontroller › 8051 › 16×2 LCD Skipping Alphabetic Letters (b,d,f,h,j etc.) – AT89C5131A › Well, in theory that is the

December 21, 2012 at 8:50 pm #8870
guyd
Participant

Well, in theory that is the problem…

but for some reason, the problem still extist.

 

the code:

 

 

//Program to display String on LCD

#include<reg52.h>

#define lcd_data_pin P2

sbit rs=P3^0; // Register select pin
sbit rw=P3^1; // Read write pin
sbit en=P3^2; // Enable pin
void delay(unsigned int msec)    //delay function
{
int i,j;
for(i=0;i<msec;i++)
for(j=0;j<1275;j++);
}
void lcd_command(unsigned char comm) // function to send command to LCD
{
lcd_data_pin=comm;
en=1;
rs=0;
rw=0;
delay(1);
en=0;
}
void lcd_data(unsigned char disp)    // function to send data on LCD
{
lcd_data_pin=disp;
en=1;
rs=1;
rw=0;
delay(20);
en=0;
}

lcd_dataa(unsigned char *disp)    // function to send string to LCD
{
int x;
for(x=0;disp[x]!=0;x++)
{
lcd_data(disp[x]);

}
}

void lcd_ini()     //Function to inisialize the LCD
{
lcd_command(0x38);   
delay(5);
lcd_command(0x0F);       
delay(5);
lcd_command(0x80);
delay(5);
 

}
void main()
{
while(1){
lcd_ini();
lcd_dataa(“A B :a;a”);

}
}

 

 

Result: LCD Displays “A!C!;a;a”

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