How to make text scroll on my 2x16 LCD?

[Guest]

I am using a PIC millennium board and a PIC16F628. How can I make a text string scroll on the display?

My code:



#include "16F628.H"

#fuses INTRC,NOBROWNOUT,NOMCLR,NOWDT,NOPROTECT,NOLVP,NOPUT

#use delay (clock=4140000)

// Velger baud-rate og hvilke pinner som skal benyttes som RX og TX
#use rs232(baud=9600, xmit=PIN_A3,rcv=PIN_A2)

// Definerer SDA og SCL i hovedprogrammet.
#define SDA_PIN PIN_A1
#define SCL_PIN PIN_A0
#use i2c(master,sda=SDA_PIN, scl=SCL_PIN)

#include "lcd_rfo.c"
#include "2416_rfo.c"

//Globale variabler
char const text[26]="Stor blindtest av juleol!";
int tegn;
byte teller;

void main(void)
{
unsigned long j;

lcd_init(); //Initierer LCD
lcd_putc("\fSystem ready...\n"); //Sender en oppstartsmelding til LCD
printf("System ready...\n"); //Sender en oppstartsmelding til serieporten
delay_ms(2000); //Meldingen st�r i 2 sekunder
lcd_putc('\f'); //Sletter oppstartsmeldingen p� LCD

//Initierer EEPROM
init_ext_eeprom();

// Skriver data (byte for byte) til EEPROM
for(j=0; j<26;j++)
{
write_ext_eeprom(0, j, text[j]);
delay_ms(10);
//printf("\n\rLagrer data i page 0 : offset %lu",j);
} // for

//puts("\n\rFerdig."); // Skriver en melding til serieporten
lcd_putc("DATA FRA EEPROM:");
lcd_putc('\n');
for ( teller=0; teller<26;teller++)
{
tegn=read_ext_eeprom(0, teller);
lcd_putc(tegn);
} // for
delay_ms(2000);

} // main

[Mark]

Write the text to the display
Wait
Write the text starting with the second char to the display
Wait
Write the text starting with the third char to the display
wait
and so on...

[PCM programmer]

If you want to make the text scroll sideways, I have the following
routine from one of my programs. The lcd_send_byte() function
is in the CCS lcd.c driver file. The 0x18 value is a command
to scroll left, that works with standard LCD displays.
See this link for a list of commands:
http://www.geocities.com/dinceraydin/lcd/commands.htm

//-----------------------------------------------------------------------
// Scroll the lcd display 1 position left.
// After you're done scrolling, and want to enter new text, be sure to
// do a lcd_putc("\f"). This will clear the LCD and put the cursor in
// the upper left corner.

void lcd_scroll_left(void)
{

lcd_send_byte(0, 0x18);

}