C program to print text on 2x16 LCD display using PIC 16f877a micro-controller
#include <htc.h>
__CONFIG(0x3F3A);
#define rs RC0
#define rw RC1
#define en RC2
#define lcd PORTD
void lcd_ini();
void lcd_cmd(unsigned char cmd);
void lcd_data(unsigned char data);
void lcd_str(unsigned char *str);
void delay();
void main()
{
TRISC=0;
TRISD=0;
lcd_ini();
lcd_cmd(0x82);
lcd_str("I AM CAPTAIN");
lcd_cmd(0XC0);
lcd_str("NEEL
JACKSPARROW");
while(1);
}
void lcd_ini()
{
lcd_cmd(0x38);
delay();
lcd_cmd(0x0E);
delay();
lcd_cmd(0x01);
delay();
lcd_cmd(0x06);
delay();
}
void lcd_cmd(unsigned char cmd)
{
lcd=cmd;
rs=0;
rw=0;
en=1;
delay();
en=0;
}
void lcd_data(unsigned char data)
{
lcd=data;
rs=1;
rw=0;
en=1;
delay();
en=0;
}
void delay()
{
unsigned int i=5000;
while(i--);
}
void lcd_str(unsigned char *str)
{
unsigned char i=0;
while(str[i]!=0)
lcd_data(str[i++]);
}
Proteus
Simulated design:
< click on the image for enlarged view >
