[phapdp]

cái này là code:
#include <18f4680.h>
#include <def_877a.h>
#FUSES NOWDT, XT, NOPUT, NOPROTECT, NODEBUG, NOBROWNOUT, NOLVP, NOCPD, NOWRT
#use delay(clock=12000000)
#include <lcd_lib_4bit.c>
void main()
{
set_tris_c(0b11111000);
LCD_Init();
LCD_SetPosition(0x00+4);
Printf(LCD_putchar,"TAN PHAP");
LCD_putcmd(0xC0);
LCD_SetPosition(0x40+1);
Printf(LCD_putchar,"DTVT09C TEXTLCD");
}
test phần cứng sao lại ko ra chữ gì hêt