LCD显示不完整-blackwinter的回答

15条回答

2019-07-16 04:15

本帖最后由 blackwinter 于 2017-12-25 16:38 编辑

人中狼发表于 2017-12-25 16:10
最好把代码贴上来，下载是要扣积分的

S_SET  BIT P1.0
M_SET BIT P1.1
H_SET BIT P1.2
RESET BIT P1.3
D_SET BIT P1.4
YUE_SET BIT P1.5
Y_SET BIT P1.6
RS    BIT P2.4
RW    BIT P2.5
EN    BIT P2.6
SJ       EQU P0
SECOND  EQU  30H
MINUTE  EQU  31H
HOUR EQU  32H
TCNT EQU  34H
YEAR_H  EQU  35H
YEAR_L  EQU  36H
MONTH EQU  37H
DAT    EQU  38H
      ORG  00H
      SJMP START
      ORG  0BH
      LJMP  INT_T0
START:
         MOV  HOUR,#0
         MOV  MINUTE,#0
         MOV  SECOND,#0
         MOV  TCNT,#0
         MOV  YEAR_H,#20
      MOV  YEAR_L,#17
         MOV  MONTH,#0
         MOV  DAT,#0
         MOV  TMOD,#01H
         MOV  TH0,#3CH
         MOV  TL0,#0B0H
         MOV  IE,#82H
         SETB  TR0

A1: LCALL  DISPLAY
      MOV P1,#0FFH
      JNB S_SET,S1
      JNB M_SET,S2
      JNB H_SET,S3
      JNB D_SET,S4
      JNB YUE_SET,T5
      JNB Y_SET,T6
      JNB RESET,START
      LJMP A1
T5:       LJMP S5
T6: LJMP S6
S1:    LCALL DELAY
      JB S_SET,A1
      INC SECOND
      LCALL DISPLAY
      MOV A,SECOND
      CJNE A,#60,J0
      MOV SECOND,#0
      LJMP K1
J0:JB S_SET,A1
LCALL  DISPLAY
SJMP  J0
S2:    LCALL DELAY
      JB M_SET,A1
K1: INC MINUTE
      MOV A,MINUTE
      CJNE A,#60,J1
      MOV MINUTE,#0
      LJMP K2
J1:JB M_SET,A1
LCALL  DISPLAY
SJMP  J1
S3: LCALL DELAY
      JB    H_SET,A1
K2:    INC HOUR
      MOV A,HOUR
      CJNE A,#24,J2
      MOV HOUR,#0
   LJMP K3
J2:JB H_SET,V6
LCALL  DISPLAY
SJMP  J2
V6:LJMP  A1
S4:    LCALL DELAY
      JB D_SET ,V7
K3:    INC DAT
      MOV A,DAT
      CJNE  A,#31,J3
      MOV DAT,#0
   LJMP K4
V7:LJMP A1
J3:JB D_SET,V1
LCALL  DISPLAY
SJMP  J3
V1:LJMP A1
S5:    LCALL DELAY
      JB YUE_SET ,V2
K4:    INC MONTH
      MOV A,MONTH
      CJNE  A,#12,J4
      MOV MONTH,#0
   LJMP  K5
V2:LJMP A1
J4:JB YUE_SET,V3
LCALL  DISPLAY
SJMP  J4
V3:LJMP  A1
S6:    LCALL DELAY
      JB Y_SET ,V4
K5:       INC YEAR_L
         MOV A,YEAR_L
      CJNE  A,#99,J5
      MOV YEAR_L,#0
   INC YEAR_H
   MOV A,YEAR_H
      CJNE  A,#99,J5
   MOV YEAR_H,#0
      LJMP  A1
V4:LJMP A1
J5:JB Y_SET,V5
LCALL  DISPLAY
SJMP  J5
V5:LJMP A1

INT_T0: MOV  TH0,#3CH
      MOV  TL0,#0B0H
      INC  TCNT
MOV A,TCNT
CJNE A,#20,RETUNE
INC  SECOND
MOV  TCNT,#0
MOV  A,SECOND
CJNE  A,#60,RETUNE
INC  MINUTE
MOV SECOND,#0
MOV A,MINUTE
CJNE  A,#60,RETUNE
INC  HOUR
MOV  MINUTE,#0
MOV  A,HOUR
CJNE A,#24,RETUNE
INC  DAT
MOV  HOUR,#0
MOV  TCNT,#0
MOV  A,DAT
CJNE A,#31,RETUNE
INC  MONTH
MOV  DAT,#0
MOV  A,MONTH
CJNE A,#12,RETUNE
INC  YEAR_L
MOV  MONTH,#0
MOV A,YEAR_L
CJNE A,#99,RETUNE
MOV YEAR_L,#0
INC  YEAR_H
MOV A,YEAR_H
CJNE A,#99,RETUNE
MOV YEAR_H,#0

RETUNE:RETI

DISPLAY:LCALL initial ;是LCD初始化
      LCALL    DISPLAY1
MOV SJ,#01H
LCALL ENABLE
LCALL    DELAY
RET
initial:MOV SJ,#38H
LCALL ENABLE
MOV SJ,#08H
LCALL ENABLE
MOV SJ,#01H
LCALL ENABLE
MOV SJ,#06H
LCALL ENABLE
MOV SJ,#0CH
LCALL ENABLE
LCALL    DELAY
RET
DISPLAY1:  MOV SJ,#80H
   ACALL ENABLE
         MOV       A,YEAR_H
   MOV B,#10
         DIV AB
   ADD       A,#30H
   MOV A,B
   ADD A,#30H
   LCALL XIESJ
   MOV A,YEAR_L
   MOV B,#10
   DIV AB
   ADD A,#30H
LCALL XIESJ
MOV A,B
ADD A,#30H
LCALL XIESJ
MOV A,#2DH
      LCALL XIESJ

MOV A,MONTH
MOV B,#10
DIV AB
ADD A,#30H
      LCALL XIESJ
MOV A,B
ADD A,#30H
LCALL    XIESJ
MOV A,#2DH
LCALL    XIESJ

MOV A,DAT
MOV B,#10
DIV AB
ADD A,#30H
      LCALL  XIESJ
MOV A,B
ADD A,#30H
      LCALL XIESJ
      MOV SJ,#0C0H
LCALL    ENABLE
MOV A,HOUR
MOV B,#10
DIV AB
ADD A,#30H
      LCALL XIESJ
MOV A,B
ADD A,#30H
LCALL XIESJ
      MOV A,#3AH
LCALL XIESJ

MOV A,MINUTE
MOV B,#10
DIV AB
ADD A,#30H
LCALL    XIESJ
MOV A,B
ADD A,#30H
CALL XIESJ
MOV A,#3AH
LCALL    XIESJ

MOV A,SECOND
MOV B,#10
DIV AB
ADD A,#30H
LCALL    XIESJ
MOV A,B
ADD A,#30H
LCALL    XIESJ
      MOV A,#73H
LCALL    XIESJ
MOV A,#20H
LCALL    XIESJ
ENABLE: CLR RS
CLR RW
SETB EN
LCALL DELAY
CLR      EN
RET
XIESJ:
MOV SJ,A
SETB RS
CLR RW
SETB EN
LCALL DELAY
CLR      EN
RET

DELAY: MOV R6,#5
D1: MOV R7,#250
   DJNZ R7,$
   DJNZ R6,D1
   RET
   END

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