xuat ra leb

[vuhoang8x]

Hi, Minh moi hoc voi PIC, minh da mua mot con PIC6F877A va lap trinh cho out ra portB. Nhung chang hieu sao con leb o portB cha sang j het.
Cao thu chi jup.
Code (Su dung CCS)

#use delay(clock=4000000) //dung thach anh 4Mhz

int main ()
{
set_tris_b(0x00);
output_b(0xFF);
while (TRUE)
{
output_low (PINB_7);
delay_ms (500);
output_high (PINB_7);
delay_ms (500);
}
}