tôi viết theo cách này thì chương trình nó không chịu chạy
Code:
;XAC DINH VI TRI LED TRAM
MOVLW 0X23
MOVWF FSR
MOVLW .3
MOVWF TEMP
SO_SANH
DECF FSR, F
;XAC DINH POINT_OFF TRAM: ;NHIETmax DUOC THIET LAP DO THAO TAC BAN PHIM
MOVLW B'11110000' ;NHIETmax : NAM TRONG 4 BIT CAO
ANDWF INDF, W ;NHIETdoduoc: NAM TRONG 4 BIT THAP
MOVWF POINT_ONOFF ;POINT_ONOFF = NHIETmax
SWAPF POINT_ONOFF, F
;LUU Y :NEU POINT_ONOFF=15 THI XOA POINT_ONOFF=0
MOVLW 0X0F
XORWF POINT_ONOFF, W
BTFSC STATUS, Z
CLRF POINT_ONOFF
MOVLW B'00001111'
ANDWF INDF, W ;NHIETdoduoc = 4 BIT THAP
SUBWF POINT_ONOFF, W ;POINT_ONOFF - NHIETdoduoc
BTFSS STATUS, C
GOTO OFF_RELAY ;C=0 POINT_ONOFF < NHIETdoduoc
;C=1 POINT_ONOFF >= NHIETdoduoc
BTFSS STATUS, Z ;NEU : NHIETdoduoc = POINT_ONOFF THI Z=1
GOTO ON_RELAY ;POINT_ONOFF > NHIETdoduoc
;THOAT RA TIEP TUC XET LED CAP DUOI
DECFSZ TEMP, F
GOTO SO_SANH
ON_RELAY
....
GOTO EXIT_RELAY
OFF_RELAY
....
EXIT_RELAY RETURN