Thanku sir.
I have used the following code from this site but making a little changes to it in order to get display on both rows of LCD & also shift them towards left.
But once the entire display is shifted to left, it doesnot re-displayes form the right (as in the case of original code to shift the display to right).
Text is displayed when the entire text is at its initial position & then it again starts moving left.
But once the entire display is shifted to left, it doesnot re-displayes form the right (as in the case of original code to shift the display to right).
Text is displayed when the entire text is at its initial position & then it again starts moving left.
// Program to display dynamic text on LCD
#include<reg51.h>
#define msec 50
sbit rs=P3^0; //Register select (RS)
sbit rw=P3^1; //Read write (RW) pin
sbit en=P3^6; //Enable (EN) pin
unsigned char commands[]={0x38,0x0E,0x01,0x06,’ ’}; //Command to be sent to LCD
unsigned char command[]={0x38,0x0E,0xc0,’ ’}; //Command to be sent to LCD
char name[]={“COLLEGE”}; //String to be displayed on LCD
char nam[]={“NAME”}; //String to be displayed on LCD
void delay(unsigned int time) //Time delay function
{
unsigned int i,j;
for(i=0;i<time;i++)
for(j=0;j<1275;j++);
}
void lcdcmd(unsigned char value) //Function for sending values to the command register of LCD
{
P2=value;
rs=0;
rw=0;
en=1;
delay(1);
en=0;
return;
}
void display(unsigned char value) //Function for sending values to the data register of LCD
{
P2=value;
rs=1;
rw=0;
en=1;
delay(1);
en=0;
return;
}
void main()
{
int i,j;
for(i=0;commands!=’ ’;i++) //Sending string to LCD
{
lcdcmd(commands);
delay(msec);
}
for(j=0;name[j]!=’ ’;j++)
{
display(name[j]);
delay(msec);
}
for(i=0;command!=’ ’;i++) //Sending string to LCD
{
lcdcmd(command);
delay(msec);
}
for(j=0;nam[j]!=’ ’;j++)
{
display(nam[j]);
delay(msec);
}
while(1)
{
lcdcmd(0x18); //Shift the entire display to left
delay(75);
}
}
also Im using AT89c51 so I want to use port P0 insted of port P2 in the above code. How to do that plz help.