Ïðèìåð ïðîãðàììû íà ÿçûêå Àñåìáëåð
; ÏÐÎÃÐÀÌÌÀ DS1307.ASM
;
; ÝÒÀ ÏÐÎÃÐÀÌÌÀ ÎÒÂÅ×ÀÅÒ ÍÀ ÊÎÌÀÍÄÛ ÏÐÈÍßÒÛÅ ÏÎ ÏÎÑËÅÄÎÂÀÒÅËÜÍÎÌÓ
; ÏÎÐÒÓ ÄËß ÓÑÒÀÍÎÂÊÈ ÄÀÒÛ/ÂÐÅÌÅÍÈ ÒÀÊ ÆÅ ÊÀÊ ÄÀÍÍÛÅ RAM Â DS1307,
; Ñ ÈÑÏÎËÜÇÎÂÀÍÈÅÌ DS5000  ÊÀ×ÅÑÒÂÅ ÊÎÍÒÐÎËËÅÐÀ
;
CR EQU 0DH
LF EQU 0AH
MCON EQU 0C6H
PCON EQU 087H
TA EQU 0C7H
SCL BIT P1.0
SDA BIT P1.1
TRIG BIT P1.2
DS1307W EQU 0D0H
DS1307R EQU 0D1H
FLAGS DATA 20H
LASTREAD BIT FLAGS.0
_12_24 BIT FLAGS.1
PM_AM BIT FLAGS.2
OSC BIT FLAGS.3
SQW BIT FLAGS.4
ACK BIT FLAGS.5
BUS_FAULT BIT FLAGS.6
_2W_BUSY BIT FLAGS.7
BITCOUNT DATA 21H
BYTECOUNT DATA 22H
BYTE DATA 23H
CSEG AT 0
AJMP START
;
CSEG AT 30H
;**************************************************************
;
;*** ÇÄÅÑÜ ÏÐÎÈÑÕÎÄÈÒ ÑÁÐÎÑ ÄËß ÇÀÏÓÑÊÀ ÏÐÎÃÐÀÌÌÛ****
;
;**************************************************************
START:
MOV TA,#0AAH ; ÂÐÅÌÅÍÍÎÉ
MOV TA,#55H ; ÄÎÑÒÓÏ.
MOV PCON,#0 ; ÑÁÐÎÑ ÑËÅÄßÙÅÃÎ ÒÀÉÌÅÐÀ.
MOV MCON,#0F8H ; ÂÛÊËÞ×ÅÍÈÅ CE2 ÄËß
; ÄÎÑÒÓÏÀ Ê ÏÀÌßÒÈ.
MOV SP,#70H ; ÏÎÇÈÖÈß ÑÒÅÊÀ ÏÐÅÂÛØÀÅÒ
; ÁÓÔÅÐ.
MOV IE,#0
MOV TMOD,#20H ; ÈÍÈÖÈÀËÈÇÈÐÎÂÀÍÈÅ
MOV TH1,#0FAH ; ÏÎÑËÅÄÎÂÀÒÅËÜÍÎÃÎ ÏÎÐÒÀ
MOV TL1,#0FAH ; ÄËß ÑÊÎÐÑÒÈ 9600
ORL PCON,#80H ; ÁÎÄ.
MOV SCON,#52H
MOV TCON,#40H
;MOV R0,#0
;MOV R1,#0
;DJNZ R0,$
;DJNZ R1,$–2
SETB SDA ; ÎÁÅÑÏÅ×ÈÂÀÅÒ ÂÛÑÎÊÎÅ ÑÎÑÒÎßÍÈÅ SDA
LCALL SCL_HIGH ; ÎÁÅÑÏÅ×ÈÂÀÅÒ ÂÛÑÎÊÎÅ ÑÎÑÒÎßÍÈÅ SCL
CLR ACK ; ÑÁÐÀÑÛÂÀÍÈÅ ÔËÀÃΠÑÎÑÒÎßÍÈß
CLR BUS_FAULT
CLR _2W_BUSY
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; ÝÒÎ ÖÈÊË «ÂÅÄÓÙÅÃλ ÊÎÍÒÐÎËËÅÐÀ
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
MASTER_CONTROLLER:
MOV BYTECOUNT,#10H
FORM_FEED: MOV A,#LF ; Î×ÈÑÒÊÀ ÝÊÐÀÍÀ ÄËß ÃËÀÂÍÎÃÎ
; ÌÅÍÞ
LCALL WRITE_DATA
DJNZ BYTECOUNT,FORM_FEED
MOV DPTR, #TEXT0 ; ÏÎÌÅÑÒÈÒÜ ÎÑÍÎÂÍÎÅ ÌÅÍÞ
; ÍÀ ÝÊÐÀÍ
LCALL WRITE_TEXT
MOV DPTR, #TEXT3
LCALL WRITE_TEXT
LCALL READ_DATA
CLR ACC.5 ; ÏÅÐÅÂÅÑÒÈ ACC Â ÂÅÐÕÍÈÉ
; ÐÅÃÈÑÒÐ
CJNE A,#’A’,NOTA ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ ÓÑÒÀÍÎÂÊÈ
; ×ÀÑÎÂ
LCALL SET_CLOCKM
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTA:
CJNE A,#’B’,NOTB ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ SET RAM
; È
LCALL SET_RAM ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ READ RAM
LCALL READ_RAM
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTB:
CJNE A,#’C’,NOTC ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ READ CLOCK
LCALL READ_CLOCK
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTC:
CJNE A,#’D’,NOTD ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ READ RAM
LCALL READ_RAM
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTD: CJNE A,#’E’,NOTE ; ÂÛÇÂÀÒÜ ÓÏÐÀÂËÅÍÈÅ OSC
CLR OSC ; ÑÁÐÎÑ ÔËÀÃÀ OSC – ÂÊË.
LCALL OSC_CONTROL
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTE: CJNE A,#’F’,NOTF ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ ÓÏÐÀÂËÅÍÈß OSC
SETB OSC ; ÓÑÒÀÍÎÂÈÒÜ ÔËÀÃ OSC – ÂÛÊË.
LCALL OSC_CONTROL
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTF: CJNE A,#’G’,NOTG ; ÂÛÇÂÀÒÜ ÓÏÐÀÂËÅÍÈÅ SWQ
CLR SQW ; ÑÁÐÎÑ ÔËÀÃÀ SQW – ÂÊË.
LCALL SQW_CONTROL_1HZ
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTG: CJNE A,#’G’,NOTH ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ ÓÏÐÀÂËÅÍÈß SWQ
CLR SQW ; ÑÁÐÎÑ ÔËÀÃÀ SQW – ÂÊË.
LCALL SQW_CONTROL_1HZ
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTH: CJNE A,#’H’,NOTI ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ ÓÏÐÀÂËÅÍÈß SWQ
CLR SQW ; ÑÁÐÎÑ ÔËÀÃÀ SQW – ÂÊË.
LCALL SQW_CONTROL_4KHZ
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTI: CJNE A,#’I’,NOTJ ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ ÓÏÐÀÂËÅÍÈß SWQ
CLR SQW ; ÑÁÐÎÑ ÔËÀÃÀ SQW – ÂÊË.
LCALL SQW_CONTROL_8KHZ
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTJ: CJNE A,#’J’,NOTK ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ ÓÏÐÀÂËÅÍÈß SWQ
CLR SQW ; ÑÁÐÎÑ ÔËÀÃÀ SQW – ÂÊË.
LCALL SQW_CONTROL_32KHZ
JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
NOTK: CJNE A,#’K’,NOTL ; ÂÛÇÂÀÒÜ ÔÓÍÊÖÈÞ ÓÏÐÀÂËÅÍÈß SWQ
SETB SQW ; ÓÑÒÀÍÎÂÈÒÜ ÔËÀÃ SQW – ÂÛÊË.
LCALL SQW_CONTROL_1HZ
JMP MASTER_CONTROLLER
NOTL: CJNE A,#’L’,NOTM
LCALL SET_RAM_UNQ
LCALL READ_RAM
NOTM: JMP MASTER_CONTROLLER ; ÂÅÐÍÓÒÑß Â ÃËÀÂÍÎÅ ÌÅÍÞ
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÏÎÑÛËÀÅÒ ÑÎÑÒÎßÍÈÅ START
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SEND_START:
SETB _2W_BUSY ; ÏÎÊÀÇÛÂÀÅÒ, ×ÒÎ ÂÛÏÎËÍßÅÒÑß
; ÄÂÓÕÏÐÎÂÎÄÍÀß ÎÏÅÐÀÖÈß
CLR ACK ; ÑÁÐÀÑÛÂÀÅÒ ÔËÀÃÈ ÑÎÑÒÎßÍÈß
CLR BUS_FAULT
JNB SCL,FAULT ; ÏÐÎÂÅÐßÅÒ ØÈÍÓ
JNB SDA,FAULT ; ÍÀ×ÀËÎ ÑÎÑÒÎßÍÈß START
SETB SDA
LCALL SCL_HIGH ; SDA
CLR SDA
;
LCALL DELAY ; SCL ^START
CLR SCL
RET
FAULT:
SETB BUS_FAULT ; ÓÑÒÀÍÀÂËÈÂÅÒ ÑÎÑÒÎßÍÈÅ ÎØÈÁÊÈ
RET ; È ÂÛÕÎÄÈÒ ÈÇ ÏÎÄÏÐÎÃÐÀÌÌÛ
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÏÎÑÛËÀÅÒ ÑÎÑÒÎßÍÈÅ STOP
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SEND_STOP:
CLR SDA ; SDA
LCALL SCL_HIGH
SETB SDA ; SCL ^STOP
CLR _2W_BUSY
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÏÎÑÛËÀÅÒ ÎÄÈÍ ÁÀÉÒ Â DS1307
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SEND_BYTE:
MOV BITCOUNT,#08H ; ÓÑÒÀÍÀÂËÈÂÀÅÒ ÑרÒ×ÈÊ ÍÀ 8 ÁÈÒÎÂ
SB_LOOP:
JNB ACC.7,NOTONE ; ÏÐÎÂÅÐßÅÒ ÐÀÂÅÍ ËÈ ÁÈÒ 7 ACC 1
SETB SDA ; ÓÑÒÀÍÀÂËÈÂÀÅÒ SDA  ÂÛÑÎÊÎÅ ÑÎÑÒÎßÍÈÅ
JMP ONE
NOTONE:
CLR SDA ; ÑÁÐÀÑÛÂÀÅÒ SDA (0)
ONE:
LCALL SCL_HIGH ; ÏÅÐÅÕÎÄ ÍÀ SCL ÈÇ ÍÈÇÊÎÃÎ Â ÂÛÑÎÊÎÅ
RL A ; ÑÄÂÈÃ ÂËÅÂÎ ACC ÍÀ 1 ÁÈÒ
CLR SCL ; ÏÅÐÅÕÎÄ ÍÀ SCL ÈÇ ÂÛÑÎÊÎÃÎ Â ÍÈÇÊÎÅ
DJNZ BITCOUNT,SB_LOOP ; ÖÈÊË ÄËß 8 ÁÈÒ
SETB SDA ; ÓÑÒÀÍÀÂËÈÂÀÅÒ ÍÀ SDA ÂÛÑÎÊÎÅ ÑÎÑÒ.
; ÄËß ÈÌÏÓËÜÑÀ ÏÎÄÒÂÅÐÆÄÅÍÈß ÏÐȨÌÀ
LCALL SCL_HIGH ; ÏÅÐÅÕÎÄ ÍÀ SCL ÈÇ ÍÈÇÊÎÃÎ Â ÂÛÑÎÊÎÅ
CLR ACK ; ÑÁÐÎÑ ÔËÀÃÀ ÏÎÒÂÅÐÆÄÅÍÈß ÏÐȨÌÀ
JNB SDA,SB_EX ; ÏÐÎÂÅÐÊÀ ÍÀ ÏÎÒÂÅÐÆ. ÈËÈ ÍÅÏÎÄÒÂÅÐÆ.
SETB ACK ; ÓÑÒÀÍÎÂÊÀ ÔËÀÃÀ ÏÎÄÒÂÅÐÆÄÅÍÈß ÄËß
; ÍÅÏÎÄÒÂÅÐÆÄÅÍÈß
SB_EX:
LCALL DELAY ; ÇÀÄÅÐÆÊÀ ÎÏÅÐÀÖÈÈ
CLR SCL ; ÏÅÐÅÕÎÄ ÍÀ SCL
; ÈÇ ÂÛÑÎÊÎÃÎ Â ÍÈÇÊÎÅ
LCALL DELAY ; ÇÀÄÅÐÆÊÀ ÎÏÅÐÀÖÈÈ
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ×ÈÒÀÅÒ ÎÄÈÍ ÁÀÉÒ ÈÇ DS1307
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
READ_BYTE:
MOV BITCOUNT,#008H ; ÓÑÒÀÍÀÂËÈÂÀÅÒ ÑרÒ×ÈÊ ÍÀ 8 ÁÈÒ
; ÄÀÍÍÛÕ
MOV A,#00H
SETB SDA ; ÏÅÐÅÂÎÄÈÒ SDA Â ÂÛÑÎÊÎÅ ÄËß
; ÎÑÂÎÁÆÄÅÍÈß ËÈÍÈÈ
READ_BITS:
LCALL SCL_HIGH ; ÏÅÐÅÕÎÄ SCL ÈÇ ÂÛÑÎÊÎÃÎ Â ÍÈÇÊÎÅ
MOV C,SDA ; ÏÐÅÍÅÑÒÈ ÁÈÒ ÄÀÍÍÛÕ Â ÁÈÒ
; ÏÅÐÅÍÎÑÀ \
RLC A ; ÑÄÂÈÍÓÒÜ ÜÈÒ ÏÅÐÅÍÎÑÀ Â ACC.0
CLR SCL ; ÏÅÐÅÕÎÄ SCL ÈÇ ÍÈÇÊÎÃÎ Â ÂÛÑÎÊÎÅ
DJNZ BITCOUNT,READ_BITS ; ÖÈÊË ÄËß 8 ÁÈÒ
JB LASTREAD,ACKN ; ÏÐÎÂÅÐÈÒÜ ÏÐÎ×ÈÒÀÍ
; ÏÎÑËÅÄÍÈÉ ÁÀÉÒ ?
CLR SDA ; ÅÑËÈ Ñ×ÈÒÀÍ ÍÅ ÏÎÑËÅÄÍÈÉ,
; ÒÎ ÁÈÒ ÏÎÒÂÅÐÆÄÅÍÈß
ACKN:
LCALL SCL_HIGH ; ÈÌÏÓËÜÑ SCL ÄËß ÏÅÐÅÕÎÄÀ
; ÁÈÒÀ ÏÎÄÒÂÅÐÆÄÅÍÈß
CLR SCL ; ÈËÈ ÍÅ ÏÎÄÒÂÅÐÆÄÅÍÈß
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÏÅÐÅÂÎÄÈÒ ËÈÍÈÞ SCL  ÂÛÑÎÊÎÅ ÑÎÑÒÎßÍÈÅ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SCL_HIGH:
SETB SCL ; ÓÑÒÀÍÎÂÊÀ SCL Â ÂÛÑÎÊÎÅ
JNB SCL,$ ; ÖÈÊË ÏÎÊÀ SCL  ÂÛÑÎÊÎÌ ÑÎÑÒÎßÍÈÈ
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÄÅËÀÅÒ ÇÀÄÅÐÆÊÓ ÍÀ ØÈÍÅ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
DELAY:
NOP ; ÇÀÄÅÐÆÊÀ
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÏÎÄÏÐÎÃÐÀÌÌÀ ÇÀÄÅÐÆÊÈ Â 4 ÖÈÊËÀ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
DELAY_4:
NOP ; ÇÀÄÅÐÆÊÀ
NOP
NOP
NOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÅÒ ×ÀÑÛ ( ÐÓ×ÍÓÞ)
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SET_CLOCKM:
MOV R1,#2EH ; ÓÑÒÀÍÀÂ. R1 Â ÑÂÅÐÕÎÏÅÐÀÖÈÎÍÍÎÌ ÎÇÓ
; ÄËß ÄÀÒÛ\ÂÅÐÌÅÍÈ
MOV DPTR, #YEAR ; ÏÎËÓ×ÈÒÜ ÄÀÒÓ\ÂÐÅÌß
; ÎÒ ÏÎËÜÇÎÂÀÒÅËß.
LCALL WRITE_TEXT ; ÇÀÏÈÑÜ ÄÀÒÛ\ÂÐÅÌÅÍÈ
; Â ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÓÞ
LCALL READ_BCD ; ÏÀÌßÒÜ
MOV @R1,A
DEC R1
MOV DPTR, #MONTH
LCALL WRITE_TEXT
LCALL READ_BCD
MOV @R1,A
DEC R1
MOV DPTR, #DAY
LCALL WRITE_TEXT
LCALL READ_BCD
MOV @R1,A
DEC R1
MOV DPTR, #DAYW
LCALL WRITE_TEXT
LCALL READ_BCD
ANL A, #7
MOV @R1,A
DEC R1
MOV DPTR, #HOUR
LCALL WRITE_TEXT
LCALL READ_BCD
MOV @R1,A
DEC R1
MOV DPTR, #MINUTE
LCALL WRITE_TEXT
LCALL READ_BCD
MOV @R1,A
DEC R1
MOV DPTR, #SECOND
LCALL WRITE_TEXT
LCALL READ_BCD
MOV @R1,A
MOV R1,#28H ; ÓÊÀÇÀÒÅËÜ ÍÀ ÄÀÍÍÛÅ
; ×ÀÑΠ ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÎÅ ÎÇÓ
LCALL SEND_START ; ÓÑÒÀÍÀÂËÈÂÀÅÒ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÓÑÒÀÍÀÂËÈÂÀÅ ÊÎÌÀÍÄÓ ÇÀÏÈÑÈ DS1307
LCALL SEND_BYTE
MOV A,#00H ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÄÀÍÍÛÕ
; ÍÀ ÐÅÃÈÑÒÐ 00H
LCALL SEND_BYTE ; DS1307
SEND_LOOP:
MOV A,@R1 ; ÄÂÈÃÀÅÒ ÏÅÐÂÛÉ ÁÀÉÒ ÄÀÍÍÛÕ
; Â ACC
LCALL SEND_BYTE
INC R1
CJNE R1,#2FH,SEND_LOOP ; ÖÈÊË ÏÎÊÀ ÄÀÍÍÛÅ ÏÎÑÛËÀÞÒÑß
; Â DS1307
LCALL SEND_STOP ; ÓÑÒÀÍÀÂËÈÂÀÅÒ ÑÎÑÒÎßÍÈÅ STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÅÒ RAM ÏÎËÜÇÎÂÀÒÅËß DS1307
; Â ‘BYTE’
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SET_RAM:
MOV R1,#08H ; ÓÊÀÇÀÒÅËÜ ÍÀ
; DS1307 RAM ÏÎËÜÇÎÂÀÒÅËß
MOV DPTR, #TEXT5 ; ÑÎÎÁÙÅÍÈÅ ÄËß ÂÂÎÄÀ ÁÀÉÒÀ ÄÀÍÍÛÕ
LCALL WRITE_TEXT ;
LCALL READ_BCD ; ×ÒÅÍÈÅ ÁÀÉÒÀ Ñ ÊËÀÂÈÀÒÓÐÛ
MOV BYTE,A ; È ÑÎÕÐÀÍÅÍÈÅ Â ’BYTE’
LCALL SEND_START ; ÓÑÒÀÍÀÂËÈÂÀÅÒ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÇÀÃÐÓÆÀÅÒ ÊÎÌÀÍÄÓ ÇÀÏÈÑÈ DS1307
LCALL SEND_BYTE ; ÏÎÑÛËÀÅÒ ÊÎÌÀÍÄÓ ÇÀÏÈÈ
MOV A,#08H ; ÓÑÒÀÍÀÂËÈÂÀÅÒ DS1307 ÓÊÀÇÀÒÅËÜ ÄÀÍÍÛÕ ÍÀ
; ÍÀ×ÀËÎ
LCALL SEND_BYTE ; RAM ÏÎËÜÇÎÂÀÒÅËß – 08H
SEND_LOOP2:
MOV A,BYTE ; ÇÀÏÈÑÜ ÁÀÉÒÀ ÂÎ ÂÍÓÒÐÅÍÍÅÅ
; ÏÐÎÑÒÐÀÍÑÒÂÎ RAM,
LCALL SEND_BYTE ; ÊÎÒÎÐÎÅ ÍÀÕÎÄÈÒÑß Ñ 08H ÏÎ 37H
INC R1
CJNE R1,#040H,SEND_LOOP2 ; ÖÈÊË ÏÎÊÀ RAM ÍÅ ÇÀÏÎËÍÈÒÑß
CALL SEND_STOP ; ÓÑÒÀÍÀÂËÈÂÀÅÒ ÑÎÑÒÎßÍÈÅ STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÅÒ RAM ÏÎËÜÇÎÂÀÒÅËß DS1307 ÓÍÈÊÀËÜÍÛÌ ÎÁÐÀÇÎÌ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SET_RAM_UNQ:
MOV R1,#08H ; ÓÊÀÇÀÒÅËÜ ÍÀ ÍÀ×ÀËÎ
; ÏÎËÜÇÎÂÀÒÅËÜÑÊÎÉ RAM DS1307
LCALL SEND_START ; ÓÑÒÀÍÎÂÊÀ ÑÎÑÒÎßÍÈß START
MOV A,#DS1307W ; ÇÀÃÐÓÇÊÀ ÊÎÌÀÍÄÛ ÇÀÏÈÑÈ DS1307
LCALL SEND_BYTE ; ÏÎÑËÀÒÜ ÊÎÌÀÍÄÓ ÇÀÏÈÑÈ
MOV A,#08H ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÄÀÍÍÛÕ DS1307 ÍÀ
; ÍÀ×ÀËÎ
LCALL SEND_BYTE ; RAM ÏÎËÜÇÎÂÀÒÅËß – 08H
SEND_LOOP3:
LCALL SEND_BYTE ; ÊÎÒÎÐÎÅ ÍÀÕÎÄÈÒÑß Ñ 08H ÏÎ 37H
INC R1
INC A
CJNE R1,#040H,SEND_LOOP3 ; ÖÈÊË ÏÎÊÀ RAM ÍÅ ÇÀÏÎËÍÈÒÑß
LCALL SEND_STOP ; ÏÎÑÛËÊÀ ÑÎÑÒÎßÍÈß STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ×ÈÒÀÅÒ RAM DS1307 È ÇÀÏÈÑÛÂÀÅÒ Å¨  ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÓÞ ÏÀÌßÒÜ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
READ_RAM:
MOV DPTR,#TEXT4 ; ÏÎÑËÀÒÜ ÑÎÎÁÙÅÍÈÅ Î ÍÀÆÀÒÈÈ ÊËÀÂÈØÈ
LCALL WRITE_TEXT
MOV R1,#30H ; ÍÀ×ÀËÎ ÐÅÃÈÑÒÐΠRAM Â
; ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÎÉ ÏÀÌßÒÈ
MOV BYTECOUNT,#00H ; ÑרÒ×ÈÊ ÍÀ 56 ÁÀÉÒ RAM
CLR LASTREAD ; ÔËÀà ÏÐÎÂÅÐÊÈ ÏÎÑËÅÄÍÅÃÎ ÏÐÎ×ÈÒÀÍÍÎÃÎ ÁÀÉÒÀ
LCALL SEND_START ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÏÎÑËÀÒÜ ÊÎÌÀÍÄÓ ÇÀÏÈÑÈ DS1307
LCALL SEND_BYTE
MOV A,#08H ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐ 08H
; DS1307
LCALL SEND_BYTE
LCALL SEND_STOP ; ÓÑÒÀÍÎÂÈÒÜ ÑÎÑÒÎßÍÈÅ STOP
LCALL SEND_START ; ÓÑÒÀÍÎÂÈÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307R ; ÏÎÑËÀÒÜ ÊÎÌÀÍÄÓ ×ÒÅÍÈß DS1307
LCALL SEND_BYTE
READ_LOOP2:
MOV A,BYTECOUNT ; ÏÐÎÂÅÐßÒÜ ×ÒÅÍÈÅ ÏÎÑËÅÄÍÅÃÎ
; ÁÀÉÒÀ
CJNE A,#37H,NOT_LAST2
SETB LASTREAD ; ÅÑËÈ Ñ×ÈÒÀÍ ÏÎÑËÅÄÍÈÉ ÓÑÒÀÍÎÂÈÒÜ
; ÔËÀÃ LASTREAD
NOT_LAST2:
LCALL READ_BYTE ; ×ÒÅÍÈÅ ÁÀÉÒÀ ÄÀÍÍÛÕ
MOV @R1,A ; ÏÅÐÅÌÅÑÒÈÜ ÄÀÍÍÛÅ Â ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÓÞ
; ÏÀÌßÒÜ
INC R1 ; ÓÂÅËÈ×ÈÒÜ ÇÍÀ×ÅÍÈÅ ÓÊÀÇÀÒÅËß ÍÀ 1
INC BYTECOUNT
MOV A,BYTECOUNT
CJNE A,#38H,READ_LOOP2 ; ÖÈÊË ÄËß ÂÍÓÒÐÅÍÍÅÉ RAM DS1307
LCALL SEND_STOP ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ STOP
LCALL DISP_RAM ; ÎÒÎÁÐÀÇÈÒÜ ÄÀÍÍÛÅ Â
; ÑÂÅÐÕÎÏÅÐÀÒÈÍÎÉ ÏÀÌßÒÈ
JNB RI,$ ; ÆÄÀÒÜ ÏÎÊÀ ÍÅ ÍÀÆÀÒÀ ÊËÀÂÈØÀ
CLR RI
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÎÒÎÁÐÀÆÀÅÒ ÄÀÍÍÛÅ RAM Â ÑÂÅÐÕÎÏÅÐÅÀÒÈÂÍÎÉ ÏÀÌßÒÈ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
DISP_RAM:
MOV R1,#30H ;ÍÀ×ÀËÎ RAM  ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÎÉ
;ÏÀÌßÒÈ
MOV BITCOUNT,#00H
MOV DPTR,#TEXT6 ;ÎÒÎÁÐÀÆÀÒÜ ÂÅÐÕ ÒÀÁËÈÖÛ
LCALL WRITE_TEXT
DISP_ADDR:
LCALL DISP_LOC ; ÎÒÎÁÐÀÆÀÅÒ ÇÍÀ×ÅÍÈÅ ÒÅÊÓÙÅÃÎ
; ÏÎËÎÆÅÍÈß Â RAM
DIS_LOOP:
MOV A,@R1 ; ÎÒÎÁÀÆÀÅÒ ÄÀÍÍÛÅ RAM ÑÎÕÐÀͨÍÍÛÅ
; Â ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÎÉ ÏÀÌßÒÈ
LCALL WRITE_BCD ; ÏÐÅÎÁÐÀÇÎÂÀÍÈÅ Â ÔÎÐÌÀÒ BCD È
; ÎÒÎÁÐÀÆÅÍÈÅ
INC R1
INC BITCOUNT
MOV A,#20H ; ÏÐÎÑÒÐÀÍÑÒÂÎ ÌÅÆÄÓ ÁÀÉÒÀÌÈ ÄÀÍÍÛÕ
LCALL WRITE_DATA
MOV A,BITCOUNT
CJNE A,#08H,DIS_LOOP ; ÏÅÐÅÕÎÄ ÑÒÐÎÊÈ ÏÎÑËÅ 8 ÁÀÉÒÎÂ
; ÄÀÍÍÛÕ
MOV BITCOUNT,#00H
MOV DPTR,#TEXT3 ; ’CR,LF’
LCALL WRITE_TEXT
CJNE R1,#68H,DISP_ADDR ; ÎÒÎÁÐÀÆÀÅÒ ÄÀÍÍÛÅ ÄËß 56 ÁÀÉÒÎÂ
; RAM
RET
;––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– ;
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÀ ÇÀÏÈÑÛÂÀÅÒ ÏÎËÎÆÅÍÈÅ ÄÀÍÍÛÕ Â RAM
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
DISP_LOC:
MOV A,R1 ; ÎÒÎÁÐÀÆÅÍÈÅ HEX ÇÍÀ×ÅÍÈß
; ÄËß ÄÀÍÍÛÕ
ADD A, #–28H ; Â ÏÐÎÑÒÐÀÍÑÒÂÅ DS1307 RAM
LCALL WRITE_BCD ; ÏÐÅÎÁÐÀÇÎÂÀÍÈÅ ÀÄÐÅÑÀ ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÎÉ
MOV A,#20H ; ÏÀÌßÒÈ Â ÀÄÐÅÑ DS1307 RAM
LCALL WRITE_DATA
MOV A,#20H
LCALL WRITE_DATA
MOV A,#20H
LCALL WRITE_DATA
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ×ÈÒÀÅÒ ÏÎÊÀÇÀÍÈß ×ÀÑÎÂ È ÇÀÏÈÑÛÂÀÅÒ ÈÕ Â
; ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÓÞ ÏÀÌßÒÜ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
READ_CLOCK:
MOV DPTR,#TEXT4 ; ÑÎÎÁÙÅÍÈÅ Î ÍÀÆÀÒÈÈ ÊËÀÂÈØÈ
LCALL WRITE_TEXT
READ_AGAIN:
MOV R1,#28H ; ÍÀ×ÀËÎ ÐÅÃÈÑÒÐÀ ×ÀÑΠÂ
; ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÓÞ RAM
MOV BYTECOUNT,#00H ; ÑרÒ×ÈÊ ÄÎ 8 ÁÀÉÒΠÄËß
; ×ÀÑÎÂ
CLR LASTREAD ; ÏÐÎÂÅÐÊÀ ×ÒÅÍÈß ÔËÀÃÀ ÏÎÑËÅÄÍÅÃÎ ÁÀÉÒÀ
LCALL SEND_START ; ÏÎÑÛËÊÀ ÑÎÑÒÎßÍÈß START
MOV A,#DS1307W ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐÅ 00H
; DS1307
LCALL SEND_BYTE
MOV A,#00H
LCALL SEND_BYTE
LCALL SEND_STOP ; ÏÎÑÛËÊÀ ÑÎÑÒÎßÍÈß STOP
LCALL SEND_START ; ÏÎÑÛËÊÀ ÑÎÑÒÎßÍÈß START
MOV A,#DS1307R ; ÏÎÑÛËÊÀ ÊÎÌÀÍÄÛ ×ÒÅÍÈß DS1307
LCALL SEND_BYTE
READ_LOOP:
MOV A,BYTECOUNT ; ÏÐÎÂÅÐÊÀ ×ÒÅÍÈß ÏÎÑËÅÄÍÅÃÎ
; ÁÀÉÒÀ
CJNE A,#07H,NOT_LAST
SETB LASTREAD ; ÓÑÒÀÍÎÂÈÒÜ ÔËÀÃ ×ÒÅÍÈß ÏÎÑËÅÄÍÅÃÎ ÁÀÉÒÀ
NOT_LAST:
LCALL READ_BYTE ; ÏÐÎ×ÈÒÀÒÜ ÁÀÉÒ ÄÀÍÍÛÕ
MOV @R1,A ; ÏÎÌÅÑÒÈÒÜ ÄÀÍÍÛÅ Â ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÓÞ
; ÏÀÌßÒÜ
MOV A,BYTECOUNT ; ÏÐÎÂÅÐÊÀ ×ÒÅÍÈß
; ÐÅÃÈÑÒÐÀ ÑÅÊÓÍÄ
CJNE A,#00H,NOT_FIRST
CLR OSC ; Î×ÈÑÒÊÀ ÔËÀÃÀ OSC
MOV A,@R1 ; ÑÎÄÅÐÆÈÌÎÅ ÐÅÃÈÑÒÐÀ ÑÅÊÓÍÄ Â ACC
JNB ACC.7,NO_OSC ; ÏÅÐÅÕÎÄ ÅÑËÈ ÁÈÒ 7 = 0
SETB OSC ; ÓÑÒÀÍÎÈÒÜ ÔËÀÃ OSC ÁÈÒ 7 = 1
CLR ACC.7 ; Î×ÈÑÒÈÒÜ ÁÈÒ 7 ÄËß ÎÒÎÁÐÀÆÅÍÈß
MOV @R1,A ; ÂÅÐÍÓÒÜ ÄÀÍÍÛÅ Â ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÓÞ ÏÀÌßÒÜ
NO_OSC:
NOT_FIRST:
INC R1 ; ÓÂÅËÈ×ÈÒÜ ÑÎÄÅÐÆÈÌÎÅ ÑרÒ×ÈÊÀ ÍÀ 1
INC BYTECOUNT
MOV A,BYTECOUNT
CJNE A,#08H,READ_LOOP ; ÖÈÊË ÄËß ÂÍÓÒÐÅÍÍÈÕ ÐÅÃÈÑÒÐÎÂ
; ×ÀÑÎÂ
LCALL SEND_STOP ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈ STOP
LCALL DISP_CLOCK ; ÎÒÎÁÐÀÇÈÒÜ ÄÀÒÓ/ÂÐÅÌß ÈÇ
; ÑÂÅÐÕÎÏÅÐÀÒÈÂÍÎÉ ÏÀÌßÒÈ
JNB RI,READ_AGAIN ; ×ÈÒÀÒÜ È ÎÒÎÁÐÀÆÀÒÜ ÏÎÊÀ
; ÍÅ ÍÀÆÀÒÀ ÊËÀÂÈØÀ
CLR RI
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÎÒÎÁÐÀÆÀÅÒ ÄÀÒÓ È ÂÐÅÌß ÕÐÀÍßÙÈÅÑß Â
; ÑÂÅÐÕÎÏÅÐÅÀÒÈÂÍÎÉ ÏÀÌßÒÈ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
DISP_CLOCK:
MOV DPTR,#TEXT1 ; ÄÀÒÀ:
LCALL WRITE_TEXT
MOV R1,#2DH ; ÌÅÑßÖ
MOV A,@R1
LCALL WRITE_BCD
MOV A,#’/’
LCALL WRITE_DATA
MOV R1,#2CH ; ÄÀÒÀ
MOV A,@R1
LCALL WRITE_BCD
MOV A,#’/’
LCALL WRITE_DATA
MOV R1,#2EH ; YEAR
MOV A,@R1
LCALL WRITE_BCD
MOV A,#09H ; ÒÀÁÓËßÖÈß
LCALL WRITE_DATA
MOV DPTR,#TEXT2 ; ÂÐÅÌß:
LCALL WRITE_TEXT
MOV R1,#2AH ; ×ÀÑÛ
MOV A,@R1
LCALL WRITE_BCD
MOV A,#3AH ; ÄÂÎÅÒÎ×ÈÅ
LCALL WRITE_DATA
MOV R1,#29H ; ÌÈÍÓÒÛ
MOV A,@R1
LCALL WRITE_BCD
MOV A,#3AH ; ÄÂÎÅÒÎ×ÈÅ
LCALL WRITE_DATA
MOV R1,#28H ; ÑÅÊÓÍÄÛ
MOV A,@R1
LCALL WRITE_BCD
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÅÒ ÎÑÖÈËßÒÎÐ ÑÎÃËÀÑÍÎ ÁÈÒÓ OSC
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
OSC_CONTROL:
LCALL SEND_START ; ÓÑÒÀÍÎÂÊÀ ÑÎÑÒÎßÍÈß START
MOV A,#DS1307W ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐ 00H
; DS1307
LCALL SEND_BYTE
MOV A,#00H
LCALL SEND_BYTE
SETB LASTREAD ; ÓÑÒÀÍÎÂÈÒÜ ×ÒÅÍÈÅ ÏÎÑËÅÄÍÅÃÎ ÁÀÉÒÀ
; ÍÀ ÎÄÈÍÎ×ÍÎÅ ×ÒÅÍÈÅ
LCALL SEND_STOP ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ STOP
LCALL SEND_START ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307R ; ÏÎÑËÀÒÜ ÊÎÌÀÍÄÓ ×ÒÅÍÈß ÄËß DS1307
LCALL SEND_BYTE
LCALL READ_BYTE ; ×ÈÒÀÒÜ ÐÅÃÈÑÒÐ ÑÅÊÓÍÄ
CLR ACC.7 ; ÂÊËÞ×ÈÒÜ OSC
JNB OSC,OSC_SET
SETB ACC.7 ; ÂÛÊËÞ×ÈÒÜ OSC ÅÑËÈ ÁÈÒ OSC
; ÓÑÒÀÍÎÂËÅÍ Â
OSC_SET: ; ÐÅÃÈÑÒÐÅ ÑÅÊÓÍÄ
PUSH ACC ; ÑÎÕÐÀÍÈÒÜ ÄÀÍÍÛÅ ÑÅÊÓÍÄ Â ÑÒÅÊÅ
LCALL SEND_STOP ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ STOP
LCALL SEND_START ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐ 00H
; DS1307
LCALL SEND_BYTE
MOV A,#00H
LCALL SEND_BYTE
POP ACC ; ÏÎÑËÀÒÜ ÑÎÄÅÐÆÈÌÎÅ ÐÅÃÈÑÒÐÀ ÑÅÊÓÍÄ
; ÄËß ÓÏÐÀÂËÅÍÈß
LCALL SEND_BYTE ; OSC DS1307
LCALL SEND_STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÅÒ ÂÛÕÎÄ SQW ÍÀ 1Ãö
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SQW_CONTROL_1HZ:
LCALL SEND_START ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐ 07H
; DS1307
LCALL SEND_BYTE
MOV A,#07H
LCALL SEND_BYTE
MOV A,#90H ; SQW/OUT ÍÀ 1HZ
JNB SQW,SQW_SET ; ÏÅÐÅÕÎÄ ÅÑËÈ ÁÈÒ SQW = 1
MOV A,#80H ; ÂÛÊËÞ×ÈÒÜ SQW/OUT
SQW_SET:
LCALL SEND_BYTE
LCALL SEND_STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÅÒ ÂÛÕÎÄ SQW ÍÀ 4êÃö
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SQW_CONTROL_4KHZ:
LCALL SEND_START ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐ 07H
; DS1307
LCALL SEND_BYTE
MOV A,#07H
LCALL SEND_BYTE
MOV A,#91H ; SQW/OUT ÍÀ 1Ãö
JNB SQW,SQW_SET1 ; ÏÅÐÅÕÎÄ ÅÑËÈ ÁÈÒ SQW = 1
MOV A,#80H ; ÂÛÊËÞ×ÈÒÜ SQW/OUT
SQW_SET1:
LCALL SEND_BYTE
LCALL SEND_STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÅÒ ÂÛÕÎÄ SQW ÍÀ 8êÃö
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SQW_CONTROL_8KHZ:
LCALL SEND_START ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐ 07H
; DS1307
LCALL SEND_BYTE
MOV A,#07H
LCALL SEND_BYTE
MOV A,#92H ; SQW/OUT ÍÀ 1Ãö
JNB SQW,SQW_SET2 ; ÏÅÐÅÕÎÄ ÅÑËÈ ÁÈÒ SQW = 1
MOV A,#80H ; ÂÛÊËÞ×ÈÒÜ SQW/OUT
SQW_SET2:
LCALL SEND_BYTE
LCALL SEND_STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÓÑÒÀÍÀÂËÈÂÀÒ ÂÛÕÎÄ SQW ÍÀ 32êÃö
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
SQW_CONTROL_32KHZ:
LCALL SEND_START ; ÏÎÑËÀÒÜ ÑÎÑÒÎßÍÈÅ START
MOV A,#DS1307W ; ÓÑÒÀÍÎÂÈÒÜ ÓÊÀÇÀÒÅËÜ ÍÀ ÐÅÃÈÑÒÐ 07H
; DS1307
LCALL SEND_BYTE
MOV A,#07H
LCALL SEND_BYTE
MOV A,#93H ; SQW/OUT ÍÀ 1Ãö
JNB SQW,SQW_SET3 ; ÏÅÐÅÕÎÄ ÅÑËÈ ÁÈÒ SQW = 1
MOV A,#80H ; ÂÛÊËÞ×ÈÒÜ SQW/OUT
SQW_SET3:
LCALL SEND_BYTE
LCALL SEND_STOP
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÍÀÁËÞÄÀÅÒ ÇÀ ÒÐÈÃÃÅÐÍÛÌ ÁÈÒÎÌ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
TRIGGER:
CLR TRIG
SETB TRIG
LCALL DELAY_4
CLR TRIG
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ Ñ×ÈÒÛÂÀÅÒ ÄÀÍÍÛÅ Ñ ÝÊÐÀÍÀ È ÏÐÅÎÁÐÀÇÓÅÒ ÈÕ Â BCD ÔÎÐÌÓ
;
; ÄÀÍÍÛÅ ÄÎËÆÍÛ ÁÛÒÜ ØÅÑÒÍÀÄÖÀÒÅÐÈ×ÍÛÌÈ: 1,2,3...9,A,B,C,D,E,F
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
READ_BCD:
MOV R0,#0 ; ÑÁÐÎÑ R0
BCD_LOOP:
LCALL READ_DATA ; ÏÐÎ×ÈÒÀÒÜ ÁÀÉÒ Ñ ÊËÀÂÈÀÒÓÐÛ
LCALL WRITE_DATA ; ÇÀÏÈÑÜ ÁÀÉÒÀ ÎÁÐÀÒÍÎ ÍÀ ÝÊÐÀÍ
CJNE A, #0DH, BCD ; ÏÐÎÂÅÐÊÀ CR
MOV A,R0 ; ÏÅÐÅÌÅÑÒÈÒÜ R0 Â ACC È ÂÛÉÒÈ
RET ; ÈÇ ÏÎÄÏÐÎÃÐÀÌÌÛ
BCD:
ADD A,#–30H ; ÍÀ×ÀËÎ ÏÐÅÎÁÐÀÇÎÂÀÍÈß Â
; ÄÅÉÑÒÂÈÒÅËÜÍÎÅ ÇÍÀ×ÅÍÈÅ
JNB ACC.4,DIGIT ; ÏÅÐÅÕÎÄ ÅÑËÈ ÍÅ A–F
ADD A,#–07H ; ÅÑËÈ A–F ÒÎ ÂÛ×ÈÒÀÒÜ 7
DIGIT:
ANL A,#0FH ; ÎÁÅÑÏÅ×ÈÒÜ Î×ÈÑÒÊÓ ÁÈÒΠ4–7
ANL 0,#0FH ;
XCH A,R0 ; ÏÎÌÅÍßÒÜ ÌÅÑÒÀÌÈ R0 È ACC
SWAP A ; ÎÁÌÅÍ ÏÎËÓÁÀÉÒÎÂ ACC
ORL A,R0 ; ÂÑÒÀÂÈÒÜ ÁÈÒÛ 0–3 R0 Â ACC
MOV R0,A ; ÏÎÌÅÑÒÈÒÜ ACC Â R0
SJMP BCD_LOOP ; ÖÈÊË ÏÎÊÀ ÂÑÒÐÅ×ÀÅÒÑß CR
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÝÒÀ ÏÎÄÏÐÎÃÐÀÌÌÀ ÇÀÏÈÑÛÂÀÅÒ ÁÀÉÒ ÍÀ ÝÊÐÀÍ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
WRITE_BCD:
PUSH ACC ; ÇÀÏÈÑÀÒÜ ACC Â ÑÒÅÊ
SWAP A ; ÏÎÌÅÍßÒÜ ÏÎËÓÁÀÉÒÛ ACC ÌÅÑÒÀÌÈ
ANL A,#0FH ; Î×ÈÑÒÈÒÜ ÁÈÒÛ 4–7
ADD A,#07H ; ÄÎÁÀÂÈÒÜ 7 Â ACC ÄËß ÏÐÅÎÁÐÀÇÎÂÀÍÈß
; Â ASCII HEX
JNB ACC.4, LESSNINE ; ÏÐÎÂÅÐÊÀ ÅÑËÈ ÌÅÍÜØÅ 9
; 0–8
CJNE A,#10H,NOTNINE ; ÏÅÐÅÕÎÄ ÅÑËÈ ÁÎËÜØÅ 9
; A–F
LESSNINE:
ADD A,#–07H ; ÏÐÈÁÀÂÈÒÜ 7 ÄËß 0–9
NOTNINE:
ADD A,#30H ; ÏÐÈÁÀÂÈÒÜ 30 ÄËß ÏÐÅÎÁÐÀÇÎÂÀÍÈß
; ÝÊÂÈÂÀËÅÍÒ Â ASCII
LCALL WRITE_DATA ; ÇÀÏÈÑÜ ÁÀÉÒÀ ÍÀ ÝÊÐÀÍ
POP ACC ; ÂÛÇÎÂ ACC ÈÇ ÑÒÅÊÀ
ANL A,#0FH ; ÒÎ ÆÅ ÑÀÌÎÅ ÄËß ÂÒÎÐÎÉ
; ÏÎËÎÂÈÍÛ ÁÀÉÒÀ
ADD A,#07H
JNB ACC.4,NINE2
CJNE A,#10H,NOTNINE2
NINE2:
ADD A,#–07H
NOTNINE2:
ADD A,#30H
LCALL WRITE_DATA
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
READ_DATA:
JNB RI,READ_DATA ; ÖÈÊË ÏÎÊÀ ÁÈÒ RI=0
CLR RI
MOV A,SBUF ; ÏÎËÓ×ÈÒÜ ÁÀÉÒ ÄÀÍÍÛÕ
; ÈÇ ÏÎÑËÅÄÎÂÀÒÅËÜÍÎÃÎ ÁÓÔÅÐÀ
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
WRITE_DATA:
JNB TI,WRITE_DATA ; ÖÈÊË ÏÎÊÀ ÁÈÒ TI=0
CLR TI
MOV SBUF,A ; ÏÎËÓ×ÈÒÜ ÁÀÉÒÄÀÍÍÛÕ
; ÈÇ ÏÎÑËÅÄÎÂÀÒÅËÜÍÎÃÎ ÁÓÔÅÐÀ
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
WRITE_TEXT:
PUSH ACC ; ÑÎÕÐÀÍÈÒÜ ÁÀÉÒ ACC Â ÑÒÅÊÅ
WT1:
CLR A ; Î×ÈÑÒÊÀ ACC
MOVC A,@A+DPTR ; ÏÎÌÅÑÒÈÒÜ ÏÅÐÂÛÉ ÁÀÉÒ ÑÒÐÎÊÈ
; Â ACC
INC DPTR ; ÍÀÐÀÑÒÈÒÜ ÍÀ 1 ÓÊÀÇÀÒÅËÜ ÄÀÍÍÛÕ
CJNE A,#0,WT2 ; ÏÐÎÂÅÐÊÀ ÍÀ ÊÎÍÅÖ
; ÑÒÐÎÊÈ – 0
POP ACC
; ÂÎÑÑÒÀÍÎÂÈÒÜ ACC
RET ; ÂÅÐÍÓÒÑß ÊÎÃÄÀ ÑÒÐÎÊÀ ÏÎÑËÀÍÀ
WT2:
LCALL WRITE_DATA ; ÏÎÑËÀÒÜ ÁÀÉÒ ÑÒÐÎÊÈ ÏÎ
; ÏÎÑËÅÄÎÂÀÒÅËÜÍÎÌÓ ÏÎÐÒÓ
SJMP WT1
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
;
; ÒÅÊÑÒÎÂÛÅ ÑÒÐÎÊÈ, ÈÑÏÎËÜÇÓÅÌÛÅ ÄËßÏÎËÜÇÎÂÀÒÅËÜÑÊÎÃÎ ÈÍÒÅÐÔÅÉÑÀ ÏÎ
; ÏÎÑËÅÄÎÂÀÒÅËÜÍÎÌÓ ÏÎÐÒÓ
;
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
YEAR:
DB CR,LF,’YEAR (0 – 99) : ’,0
MONTH:
DB CR,LF,’MONTH (1 – 12) : ’,0
DAY:
DB CR,LF,’DAY OF MONTH : ’,0
DAYW:
DB CR,LF,’DAY OF WEEK : ’,0
HOUR:
DB CR,LF,’HOUR (0 – 23) : ’,0
MINUTE:
DB CR,LF,’MINUTE (0 – 59) : ’,0
SECOND:
DB CR,LF,’SECOND (0 – 59) : ’,0
TRIER:
DB CR,LF,’PRESS ANY KEY TO SET THIS TIME ’,CR,LF,0
TEXT0:
DB CR,LF,’******* DALLAS SEMICONDUCTOR ******* ’
DB CR,LF,’ DS1307 TEST PROGRAM ’,CR,LF
DB CR,LF,’PLEASE CHOOSE AN OPTION TO CONTINUE ’
DB CR,LF,’–––––––––––––––––––––––––––––––––––– ’
DB CR,LF,’A. SET TIME(MANUAL) B. SET RAM ’
DB CR,LF,’C. READ DATE/TIME D. READ RAM ’
DB CR,LF,’E. OSC ON F. OSC OFF ’
DB CR,LF
DB CR,LF,’G. SQW/OUT ON–1HZ H. SQW/OUT ON–4KHZ’
DB CR,LF,’I. SQW/OUT ON–8KHZ J. SQW/OUT ON–32KHZ’
DB CR,LF
DB CR,LF,’K. SQW/OUT OFF’
DB CR,LF,’L. WRITE RAM UNIQUE PATTERN ’
DB CR,LF,’ESC. TO QUIT ’,0 TEXT1:
DB CR,’DATE: ’,0
TEXT2:
DB ’TIME: ’,0
TEXT3:
DB CR,LF,0
TEXT4:
DB CR,LF,’PRESS ANY KEY TO RETURN’
DB C R,LF,0
TEXT5:
DB CR,LF,’ENTER THE BYTE VALUE WHICH WILL FILL THE RAM’
DB CR,LF,0
TEXT6:
DB CR,LF,’RAM RAM’
DB CR,LF,’ADDR DATA’
DB CR,LF,’–––––––––––––––––––––––––––––’
DB CR,LF,0
;******************************************
;**** ÊÎÍÅÖ ÏÐÎÃÐÀÌÌÛ *****************
;******************************************
END
