Code Mplab

[tallht]

PROCESSOR 16F877A
INCLUDE <P16F877A.INC>

;**************************
COUNT1 EQU 08h
COUNT2 EQU 09h
COUNT3 EQU 0AH

;**************************

BSF STATUS,RP0
CLRF TRISB
BCF STATUS,RP0
START
MOVLW d'18'
MOVWF PORTB
CALL DELAY
MOVLW d'0'
MOVWF PORTB
CALL DELAY
;**************************
DELAY

LOOP1
DECFSZ COUNT1,1
GOTO LOOP1
DECFSZ COUNT2,1
GOTO LOOP1
DECFSZ COUNT3,1
GOTO LOOP1
RETURN
GOTO START
END


cho em hoi chut ah:doan code tren em viet theo chi dan cua 1 tutorial tai tu picvietnam.com,muc dich la lam cho den led nhap nhay nhung sao khi em nap vao pic thi led chang nhap nhay gi het ma 2 con led chi sang hoai thoi! em coi hoai ma chang hieu tai sao het! giup em voi cac huynh ! da ta!
thach anh la 4Mhz
em co dinh kem hinh va tutorial theo do ah!