Tuesday, March 17, 2009

Scrolling LCD Display in CCS C




Most popular 2 x 16 LCD Display HD44780 chipset have a display memory up to 40 charactors.
]
Only 16 can display on a line. See the program for display the screen to the left or right shift operation .


#include <16f877.h>
#fuses XT,NOWDT,PUT,NOPROTECT,BROWNOUT,NOLVP
#use delay(clock=4000000)
#include "lcd.c"

void forword_dir(void)
{
lcd_send_byte(0, 0X18);
}

void backword_dir(void)
{
lcd_send_byte(0, 0X1E);
}
void main() {
int a,i;

lcd_init(); //lcd initialize
lcd_putc("\f"); //lcd clear
// lcd memory can hold up to 40 characters
lcd_putc(" http:// shibuvarkala . blogspot . com");

for(;;){
for(i = 0; i <>
{
backword_dir();
delay_ms(50); // scroll delay
}

for(i = 0; i <>
{
forword_dir();
delay_ms(50);
}
}
}


1 comment:

  1. Sir i have error on ur program.. may u help me... error showed on
    #include <16f877.h>
    #fuses XT,NOWDT,PUT,NOPROTECT,BROWNOUT,NOLVP
    #use delay(clock=4000000)
    #include "lcd.c"

    void forword_dir(void)
    {
    lcd_send_byte(0, 0X18);
    }

    void backword_dir(void)
    {
    lcd_send_byte(0, 0X1E);
    }
    void main() {
    int a,i;

    lcd_init(); //lcd initialize
    lcd_putc("\f"); //lcd clear
    // lcd memory can hold up to 40 characters
    lcd_putc(" http:// shibuvarkala . blogspot . com");

    for(;;){
    for(i = 0; i <> //<--- Here
    {
    backword_dir();
    delay_ms(50); // scroll delay
    }

    for(i = 0; i <> //<-- HERE
    {
    forword_dir();
    delay_ms(50);
    }
    }
    }

    ERROR SAID ' A NUMERIC EXPRESSION MUST APPEAR HERE'

    HELP ME

    ReplyDelete