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1812=4.5x3.2

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sec11  equ  10h
sec12  equ  11h
min11  equ  12h
min12  equ  13h
hour11 equ  14h
hour12 equ  15h
day11  equ  16h
day12  equ  17h
month11  equ  18h
month12  equ  19h
year11   equ  1ah
year12   equ  1bh
year13   equ  1ch
year14   equ  1dh
TEMP     EQU  1EH
N_DAY    EQU  1FH
shu2    equ  20h
adress2 equ  21h
ADRESS1  EQU  23H
SHU1    EQU   24H
SHU3    EQU   25H
TEMP11  EQU  26H
TEMP12  EQU  27H
N_DAY11  EQU  28H
N_DAY12 EQU  29H
N_MONTH11  EQU  2AH
N_MONTH12  EQU  2BH
N_MONTH  EQU    2CH
huan     equ    2dh
SCLK bit  90h
io   bit   91h
RST  bit   92h
sec  data  60h
min   data  61h
hour  data  62h
date data  63h
month  data  64h
day    data  65h

year1  DATA  66H
year2   data  67h

int_min equ   68h
int_hour  equ  69h
int_date   equ  6ah
int_month  equ  6bh
int_year1   equ  6ch
int_day    equ  6dh

start_year EQU 01; ¶¨Òå²éѯ±íÆðʼÄê·Ý,01--199 ±íʾ1901-2099 Äê
;ÒÔÏÂÈýµ¥ÔªÎªÐèת»»µÄ¹«ÀúÈÕÆÚÊÇ×Ó³ÌÐòµÄÈë¿ÚÊý¾Ý
time_year DATA 66h
time_month DATA 64h ;BIT7 ±íʾÊÀ¼Í,Ϊ1 ±íʾ19 ÊÀ¼Í,Ϊ0 ±íʾ20 ÊÀ¼Í
time_date DATA 63h
;ÒÔÏÂÈýµ¥Ôª´æת»»ºóÅ©ÀúÈÕÆÚÓëÈë¿Úµ¥ÔªÖصþ,ÈçÒª±£ÁôÈë¿ÚÐÅÏ¢,ÇëÖض¨Òå³ö¿ÚµØÖ·
CONvert_yeAr DATA 33h
CONvert_mONth DATA 34h ;BIT7 Ϊ1 ±íʾÈòÔÂ
CONvert_dAte DATA 35h
temp_Byte1 DATA 37h
temp_Byte2 DATA 38h
temp_Byte3 DATA 39h
temp_Byte4 DATA 3Ah
temp_Byte5 DATA 3Bh
time_week DATA  65h ;ÐÇÆÚÌì³ö¿Ú
;ÒÔÏÂΪ¹«ÀúתũÀú×Ó³ÌÐò



org  0000h

   mov p0,#0ffh
   mov  6eh,#00h
   mov  int_min,#59h
   mov  int_hour,#23h
   mov  int_date,#12h
   mov  int_month,#11h
   mov  int_year1,#04h
   mov  int_day,#07h
   mov  temp,#00h
   mov  year2,#20h
   MOV  SP,#74H

;DS1302¶Áд³ÌÐò
;**************


     lcall  init

start: mov  70h,hour
       mov  71h,min
       ;mov  day,time_week
       mov  r0,#sec
       mov  r7,#7
       setb  psw.5
       lcall  rwrtc
       lcall  kEY
      
       LCALL  CONvert
       lcall  GetWeek
       LCALL  TRUN
        ;LCALL  DINGSHI
       LCALL  DISP1
       LCALL  DISP3

       ljmp  start
rwrtc: mov  b,#10000001b
       jb   psw.5,rwrtc1
       mov   b,#10000000b
rwrtc1:clr  sclk
       nop
       setb  rst
       mov   r6,#8
       mov   a,b
rwrtc2:clr  sclk
       rrc  a
       mov  io,c
       nop
       setb  sclk
       djnz  r6,rwrtc2
       mov  r6,#8
       jnb  psw.5,rwrtc4
rwrtc3:clr sclk
       nop
       mov   c,io
       rrc   a
       setb  sclk
       djnz  r6,rwrtc3
       mov  @r0,a
       sjmp  rwrtc6
rwrtc4:mov  a,@r0
rwrtc5:clr  sclk
       rrc  a
       mov  io,c
       nop
       setb sclk
       djnz  r6,rwrtc5
rwrtc6:inc  r0
       mov  a,b
       add  a,#02h
       mov  b,a
       clr  rst
       nop
       clr  sclk
       djnz  r7,rwrtc1
    RET

WRRTC:  CLR  SCLK
        NOP
        SETB  RST
        NOP
        NOP
        MOV   R7,#2
WRRTC1: MOV  R6,#8
        MOV  A,@R0
        CLR  C
wrrtc2: CLR  SCLK
        RRC  A
        MOV  IO,C
        nop
        SETB  SCLK
        DJNZ   R6,WRRTC2
        INC  R0
        djnz  r7,wrrtc1
        clr    rst
        nop
        clr   sclk
        ret


 init:
      CLR  SCLK
      CLR  RST
      MOV  SEC,#10001110b
      MOV  MIN,#00000000b
      MOV  R0,#SEC
      LCALL  wrrtc
      MOV  SEC,#10010000b
      MOV  MIN,#10100101b
      MOV  R0,#SEC
      LCALL  wrrtc
      MOV   R0,#SEC
      MOV  SEC,#10000000b
      MOV  MIN,#00000000b
      lcall  writer_f
      lcall  writer_sh
      lcall  writer_date
      lcall  writer_yue
      lcall  writer_nian
      ret

writer_f:LCALL  wrrtc
      mov  r0,#sec
      mov  sec,#82h
      mov  min,int_min
      lcall  wrrtc
       ret

writer_sh:mov  sec,#10000100b
      mov  min,int_hour
      mov  r0,#sec
      lcall  wrrtc
        ret
writer_yue:mov   sec,#88h
      mov   min,int_month
      mov   r0,#sec
      lcall  wrrtc
         ret
writer_nian:mov  sec,#8ch
      mov  min,int_year1
      mov  r0,#sec
      lcall  wrrtc
      ret
writer_date:mov  sec,#86h
            mov  min,int_date
            mov  r0,#sec
            lcall  wrrtc
      RET

 ;********0***************
 ;BCDת»»
 TRUN:
      MOV  A,SEC
      MOV  B,#10H
      DIV  AB
      MOV  SEC12,A
      MOV  SEC11,B

      MOV  A,MIN
      MOV  B,#10H
      DIV   AB
      MOV  MIN12,A
      MOV  MIN11,B

      MOV  A,HOUR
      MOV  B,#10H
      DIV  AB
      MOV  HOUR12,A
      MOV  HOUR11,B

      MOV  A,date
      MOV  B,#10H
      DIV  AB
      MOV  DAY12,a
      MOV  DAY11,b

      MOV  A,MONTH
      MOV  B,#10H
      DIV  AB
      MOV  MONTH12,A
      MOV  MONTH11,B

      MOV  A,year1
      MOV  B,#10H
      DIV  AB
      MOV  YEAR12,A
      MOV  YEAR11,B

      MOV  A,YEAr2
      MOV  B,#10H
      DIV  AB
      MOV  YEAR14,A
      MOV  YEAR13,b
      MOV  A,35h
      MOV  B,#10H
      DIV  AB
      MOV  N_DAY12,A
      MOV  N_day11,B

      MOV  A,34h
      MOV  B,#10H
      DIV  AB
      MOV  N_MONTH12,A
      MOV  N_MONTH11,B

      MOV  A,TEMP
      MOV  B,#10H
      DIV  AB
      MOV  TEMP12,A
      MOV  TEMP11,B


          RET

 ;ÑÓʱ³ÌÐò
 ;********************

 DEALY:MOV R5,#01h
 DEL1: MOV R2,#07dH
 DEL2:NOP
      NOP
      DJNZ  R2,DEL2
      DJNZ  R5,DEL1
      RET
;ÏÔʾ³ÌÐò
;***********************
DENG:MOV  P2,#0FFH
     MOV  A,#00H
     MOV  SBUF,A
     JNB  TI,$
     CLR  TI

     MOV  P2,ADRESS2
     MOV  A,SHU2
     MOV  SBUF,A
     JNB  TI,$
     CLR  TI

     MOV  A,#00H
     MOV  SBUF,A
     JNB   TI,$
     CLR  TI
     LCALL  DEALY
     MOV  P2,#0FFH
     RET
DENG1:MOV P2,#0FFH
     MOV  A,SHU1
     MOV  SBUF,A
     JNB  TI,$
     CLR  TI

     MOV  P2,#0FFH
     mov  a,#00h
     MOV  SBUF,a
     JNB  TI,$
     CLR TI

     MOV  P2,ADRESS1
     MOV  A,SHU3
     MOV  SBUF,A
     JNB  TI,$
     CLR  TI
     LCALL  DEALY
     RET
DISP1:
      MOV  R3,#0bFH
      MOV  R4,#06H
      MOV  R0,#10H

DISP2:MOV  A,@R0
      MOV  DPTR,#TAB
      MOVC  A,@A+DPTR
      MOV  SHU2,A
      inc  r0
      MOV  A,R3
      Rr   A
      MOV  R3,A
      MOV  ADRESS2,A
      LCALL  DENG
      DJNZ   R4,DISP2
      mov  a,day
      mov  dptr,#xing
      movc  a,@a+dptr
      mov  shu2,a
      mov  adress2,#0bfh
      lcall  deng
         RET
DISP3:MOV  R3,#0FEH
      MOV  R4,#08H

      MOV  R1,#24H
DISP4:MOV  A,@R0
      MOV  DPTR,#TAB
      MOVC  A,@A+DPTR
      MOV   SHU3,A
      INC  r0
      MOV  A,@R1
      MOVC  A,@A+DPTR
      MOV  SHU1,A
      INC  R1
      MOV  A,R3
      RR  A
      MOV   R3,A
      MOV  ADRESS1,A
      LCALL  DENG1
      DJNZ  R4,DISP4
            RET
;********************************

;¼üÅ̳ÌÐò

;********************************
key:jb  p1.3,s2

s1:  lcall disp1
     lcall  disp3
     jnb  p1.3,s1
     mov  a,6eh
     inc  a
     mov 6eh,a
dianliang1:cjne  a,#01h,dianliang2
            mov  p0,#0feh
            ret
dianliang2:cjne  a,#02h,dianliang3
           mov  p0,#0fch
            ret
dianliang3:cjne  a,#03h,dianliang4
           mov  p0,#0f8h
             ret
dianliang4:cjne  a,#04h,dianliang5
           mov  p0,#0f0h
            ret
dianliang5:cjne  a,#05h,mie
            mov  p0,#0e0h
            ret
mie:cjne  a,#06h,out
    mov  06eh,#00h
    mov  p0,#0ffh
     ret

 out:       ret
s2:jb  p3.3,s3
shang:acall  disp1
   acall  disp3
   jnb  p3.3,shang
   mov   a,temp
   inc  a
   mov  temp,a
   cjne  a,#01h,out
   mov  a,6eh
   cjne  a,#05h,out
   mov   r0,#sec
   mov   sec,#0c0h
   mov   min,70h
   lcall  wrrtc
   mov  r0,#sec
   mov  sec,#0c2h
   mov  min,71h
   lcall  wrrtc
   ret
   

s3:    jb  p3.2,out
       MOV  R7,#05H
 xian: MOV  6FH,R7
       lcall  disp1
       lcall  disp3
       MOV  R7,6FH
       DJNZ  R7,XIAN
jia: mov  a,6eh
     cjne  a,#01h,pan2
    LJMP  jia_SH
pan2:cjne  a,#02h,pan3
   LJMP  jia_F
pan3:cjne  a,#03h,pan4
    LJMP jia_nian
pan4:cjne  a,#04h,pan5
    ljmp  jia_yue
pan5:cjne  a,#05h,out
    ljmp  jia_ri

     ret

jia_f:mov  a,int_min
     inc  a
     da     a
     mov  int_min,a
     cjne  a,#60h,diao_jf
     mov   int_min,#00h
diao_jf:
        lcall  writer_f
        lcall  chxie_ds1302
           ret
jia_sh:
       mov  a,int_hour
       inc  a
       da    a
       mov  int_hour,a
       cjne  a,#24h,diao_jsh
       mov  int_hour,#00h
diao_jsh:
         lcall  writer_sh
         lcall  chxie_ds1302

         ret
jia_ri:mov  a,int_date
       inc  a
       da  a
       mov  int_date,a
       MOV  A,MONTH
       clr  c
       mov  R7,#0f8h
       addc  a,R7
       jc   hou
qian: mov  a,month
      mov  b,#02h
      div  ab
      mov  a,b
      rrc  a
      jc   dayue
xiaoyue:mov  a,int_date
        cjne  a,#31h,diao_jri
        mov   int_date,#01h
        sjmp  diao_jri
dayue:mov  a,int_date
      cjne  a,#32h,diao_jri
      mov  int_date,#01h
      sjmp  diao_jri
hou: mov a,month
     mov  b,#02h
     div  ab
     mov  a,b
     rrc  a
     jc   xiaoyue
     sjmp  dayue

diao_jri:
         lcall  writer_date
         lcall  chxie_ds1302
            ret
jia_yue:mov  a,int_month
        inc   a
        da  a
        mov   int_month,a
        cjne   a,#13h,diao_jyue
        mov  int_month,#01h
diao_jyue:
         lcall  writer_yue
        lcall  chxie_ds1302
    ret
jia_nian:mov  a,int_year1
         inc  a
         da  a
         mov  int_year1,a
          cjne  a,#99h,diao_jnian
          mov  int_year1,#00h
diao_jnian:
           lcall  writer_nian
           lcall  chxie_ds1302
  ret

;**************************************
;¹«Å©ÀúËã·¨
;*************************************

CONvert: MOV A,time_year ;½«ÄêÔÂÈÕת»¯ÎªHEX ¸ñʽ
MOV B,#16
DIV AB
MOV CONvert_yeAr,B
MOV B,#10
MUL AB
ADD A,CONvert_yeAr
MOV CONvert_yeAr,A
MOV A,time_month
MOV C,ACC.7
MOV f0,C ;f0ÔÝ´æÊÀ¼Í±êÖ¾,½öÓÃÓÚÊý¾Ý±í¶¨Î»
CLR ACC.7
JNB ACC.4,CON_02

CLR ACC.4 ;ACC.4 Ϊ1 ±íʾ´óÓÚ10 ÔÂ
ADD A,#10
CON_02: MOV CONvert_mONth,A
MOV A,time_date
MOV B,#16
DIV AB
MOV CONvert_dAte,B
MOV B,#10
MUL AB
ADD A,CONvert_dAte
MOV CONvert_dAte,A
MOV dptr,#mONth_dAtA ;ÒÔ϶¨Î»±¾ÄêÊý¾ÝÔÚ±í¸ñÖеÄλÖÃ
MOV A,CONvert_yeAr
JB f0,CON_06 ;µ±Ç°Îª19 ÊÀ¼ÍÄêÌøת
ADD A,#100 ;´Ó19 ÊÀ¼ÍÆð¶¨Òå±í¸ñÆðʼÄê,20 ÊÀ¼ÍÒª¼Ó100 Äê
CON_06: CLR C
SUBB A,#stArt_yeAr
MOV B,#3 ;±í¸ñÿÄê3 ×Ö½Ú
MUL AB
ADD A,dpl
MOV dpl,A
MOV A,B
ADDC A,dph
MOV dph,A
MOV A,#2
MOVC A,@A+dptr ;¶Á±¾Äê±í¸ñ×îºóÒ»×Ö½Ú(´º½ÚÈÕÆÚ)
CLR ACC.7 ;ACC.7 ÊÇÈòÄêµÚ13 ¸öÔ´óС,Ôڴ˲»ÓÃ
MOV B,#32
DIV AB
MOV temp_Byte1,A ;´º½ÚÔ·Ý
MOV temp_Byte2,B ;´º½ÚÈÕ
; ÒÔϼÆË㵱ǰÈÕÆÚ¾àÔªµ©ÌìÊý
MOV temp_Byte3,#0 ;Éè¾àÔªµ©ÌìÊý¸ßλΪ0
MOV A,CONvert_mONth
CJNE A,#10,CON_08
CON_08: JC CON_09 ;9ÔÂÒÔÇ°ÈÕ×ÓÊýСÓÚ256 Ìì,¸ß×Ö½ÚΪ0(9 Ô·ݹýÈ¥µÄÕûÔÂΪ8 ¸öÔÂ)
MOV temp_Byte3,#1
CON_09: MOV A,CONvert_yeAr
ANL A,#03h ;ACC Ϊ³ý4 µÄÓàÊý
JNZ CON_10 ;ת³£Äê´¦Àí
; Äê³ý4 ÓàÊýΪ0 ÊÇÈòÄê
MOV A,CONvert_mONth

LCALL get_ruN_dAys_lOw ;È¡µÃÈòÄê¹ýÈ¥ÔµÄÌìÊýµÄµÍ×Ö½Ú
SJMP CON_12
CON_10: MOV A,CONvert_mONth
LCALL get_dAys_lOw ;È¡µÃ³£Äê¹ýÈ¥ÔµÄÌìÊýµÄµÍ×Ö½Ú
CON_12: MOV B,CONvert_dAte
DEC B ;ÒòΪÈÕÆÚ´Ó1 ÈÕÆð,¶ø²»ÊÇ0 ÈÕÆð
ADD A,B ;¹ýÈ¥µÄÕûÔÂÌìÊý¼Óµ±ÔÂÌìÊý
MOV temp_Byte4,A
JNC CON_14
INC temp_Byte3 ;temp_Byte3,temp_Byte4 ·Ö±ðΪ¹«ÀúÄê¹ýÈ¥µÄÌìÊýµÄ¸ßµÍ×Ö½Ú
; ÒÔÏÂÇ󴺽ھàÔªµ©ÌìÊý,Òò¿Ï¶¨Ð¡ÓÚ256 ÌìËùÒÔÖ»ÓÃÒ»×Ö½Ú±íʾ
CON_14: MOV A,temp_Byte1
LCALL get_dAys_lOw ;´º½Ú²»»áÔÚ3 Ô·Ý,²»Óÿ¼ÂÇÈòÄê
DEC A ;ÒòΪÈÕÆÚ´Ó1 ÈÕÆð
ADD A,temp_Byte2
MOV temp_Byte5,A ;temp_Byte5,Ϊ´º½Ú¾àÔªµ©ÌìÊý
MOV A,CONvert_mONth
CJNE A,temp_Byte1,CON_20 ;ת»»Ô