Giao tiep LCD4bit

#include <16f877.h>
#include <stdio.h>
#fuses XT,NOWDT,NOPROTECT,NOLVP,HS,NODEBUG,NOPROTECT,NOWRT,NOPUT,NOBROWNOUT,NOCPD
#use delay(clock=20000000)
 
#use fast_io(D)
#use fast_io(A)
#use fast_io(E)
 
#byte PORTA = 0x05
#byte PORTD = 0x08
#byte PORTE = 0x09
#bit RE1 = PORTE.1
#bit RE2 = PORTE.2
 
#bit RA2 = PORTA.2
#bit RA3 = PORTA.3
#bit RA4 = PORTA.4
 
 
#bit RD4 = PORTD.4
#bit RD5 = PORTD.5
#bit RD6 =...