Pic16f877a TỪ DỄ TỚi KhÓ

[ngkdong]

Cac ban giai thich dum, minh cung moi hoc PIC thoi, minh viet mot doan de thu giao dien PIC16F876A nhu sau:
#include <16F876A.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=24000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)
void main() {

printf("\r\n\Hello! \r\n");

do {
delay_ms(2000);
printf("\r\n\Running...\r\n");
} while (TRUE);
Chi vay thoi de thu giao dien voi PC, nhung khi minh nap PIC roi, dung tool Serial Port Monitor trong CCS C de giam sat thu, thi thay PIC luon goi ve rat nhieu dong Hello!, ma khong thay co dong Running...
Dung ra thi no chi goi lan luot 2 dong tren thoi va khong lam gi ca, nhung o day no cu goi lien tuc dong Hello!, doi khi bi loi ky tu nua chu.
Mong cac ban chi giao giup nhe.
}