时钟芯片DS1302文档格式.docx

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时钟芯片DS1302文档格式.docx

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时钟芯片DS1302文档格式.docx

MOVA,#00H

MOVR0,#40H;

从40H单元开始

MOVR1,#40H;

清64个单元

M_CLEAR:

MOV@R0,A

INCR0

DJNZR1,M_CLEAR

MOV7FH,#0AH;

送熄灭符

SETBBEEP

LCALLTIME_DELAY;

调显示延时

LCALLPROSET;

DS1302初始化

MAIN1:

LCALLGET_TIME;

从DS1302读数据程序

LCALLCHULI;

实时时间数据处理

MOVR0,#TIME_DATA;

显示时、分、秒

LCALLDISP

MOVR0,#TIME_DATA

LCALLTIME_DISPLAY

LCALLSET_KEY;

键功能程序

LCALLCOMP;

实时时间与定时时间比较

JBK1,MAIN1

CALLBEEP_BL

MAIN2:

日期数据处理

MOVR0,#DATE_DATA

LCALLDISP;

显示年、月、日

JBK1,MAIN2

MAIN3:

LCALLDS_CHULI;

定时时间数据处理

MOVR0,#DS_DATA

LCALLDS_SP;

显示定时时间

LCALLDS_DISPLAY

JBK1,MAIN3

AJMPMAIN1

--------------------------------------------

中断服务子程序

300MS对闪动标记取反一次

INT_T0:

PUSHACC

PUSHPSW

MOVTL0,TIME_L

MOVTH0,TIME_H

INCT_CONU

MOVA,T_CONU

CJNEA,#06H,INT_END

MOVT_CONU,#00H

CPL0AH

INT_END:

POPPSW

POPACC

RETI

DS1302初始化子程序

（R0）=数据（R1）=地址

PROSET:

CLRRST;

DS1302复位

CLRSCLK

NOP

SETBRST

;

MOVR1,#80H;

写秒寄存器

MOVR0,#00H;

启动振荡器

LCALLWRITE

MOVR1,#82H;

写分寄存器

MOVR0,#58H

MOVR1,#84H;

写时寄存器

MOVR0,#80H

MOVR1,#90H;

写充电寄存器

MOVR0,#0ABH

LCALLWRITE

RET

===============================================

读时间、日期数据子程序

存放单元40H-46H

GET_TIME:

MOVR1,#81H;

读秒

LCALLREAD

MOV40H,R0

MOVR1,#83H;

读分

MOV41H,R0

MOVR1,#85H;

读时

MOV42H,R0

MOVR1,#87H;

读出日期

MOV43H,R0

MOVR1,#89H;

读出月份

MOV44H,R0

MOVR1,#8BH;

读出星期

MOV46H,R0

MOVR1,#8DH;

读出年

MOV45H,R0

================================================

写DS1302子程序

WRITE:

MOVA,R1

MOVR2,#08H

WRI_01:

RRCA;

传输地址到DS1302

NOP

MOVIO_DATA,C

SETBSCLK

DJNZR2,WRI_01

MOVA,R0

WRI_02:

传输数据到DS1302

DJNZR2,WRI_02

CLRRST

=================================================

读DS1302子程序

READ:

READ_01:

RRCA

NOP;

先传输地址到DS1302

DJNZR2,READ_01

SETBIO_DATA

CLRA

CLRC

READ_02:

MOVC,IO_DATA

再从DS1302接收数据

DJNZR2,READ_02

MOVR0,A

==============================================

实时时间、日期数据处理子程序

CHULI:

MOVA,40H;

处理秒数据

ANLA,#0FH

MOV50H,A

MOV70H,A

MOVA,40H

ANLA,#11110000B

SWAPA

MOV51H,A

MOV71H,A

---------------------------------------------

MOVA,41H;

处理分数据

MOV52H,A

MOV72H,A

MOVA,41H

MOV53H,A

MOV73H,A

MOVA,42H;

处理时数据

MOV54H,A

MOV74H,A

MOVA,42H

MOV55H,A

MOV75H,A

----------------------------------------------

MOVA,43H;

处理日数据

MOV60H,A

MOV76H,A

MOVA,43H

MOV61H,A

MOV77H,A

MOVA,44H;

处理月数据

MOV62H,A

MOV78H,A

MOVA,44H

MOV63H,A

MOV79H,A

MOVA,45H;

处理年数据

MOV64H,A

MOV7AH,A

MOVA,45H

MOV65H,A

MOV7BH,A

MOVA,46H;

处理周数据

MOV66H,A

MOV7CH,A

=============================================

实时时间、日期查表取数子程序

DISP:

MOVR0,#TIME_DATA

MOVR3,#06H

DISP1:

MOVA,@R0

MOVDPTR,#TAB_NU

MOVCA,@A+DPTR

DJNZR3,DISP1

====================================================

时间、日期显示子程序

TIME_DISPLAY:

MOVR0,#TIME_DATA;

取得显示单元首地址

MOVR1,#07FH;

从第一个数码管开始

MOVR2,#08H;

共8个数码管

DISLP:

MOVP0,@R0;

获得当前单元数据

MOVP2,A;

数码显示

JBACC.5,DISLP1;

第三位数码管显示－

MOVP0,#0f7H

JMPDISLP3

DISLP1:

JBACC.2,DISLP2;

第六位数码管显示－

DISLP2:

DISLP3:

MOVA,R1;

为下一个数准备

RRA;

下一个单元

MOVR1,A;

保存

LCALLDELAY;

为了保证数码管亮度，延时

DJNZR2,DISLP;

重复显示，直到全部数据刷新过

RET;

DELAY:

MOVR4,#0AH

L15:

MOVR5,#64H

L16:

DJNZR5,L16

DJNZR4,L15

******************************************************

SET_KEY:

SETBK1;

增加键

SETBK2;

减少键

SETBK3;

选择键

SETBK4;

定时设定功能键

JBK4,KEY01

LCALLBEEP_BL

JMPDS_KEY;

进入定时值设定子程序

KEY01:

JBK2,KEY02

JMPSET_TIME;

进入时间设定子程序

KEY02:

JBK3,KEY03

CPL20H.0;

止闹标记取反

KEY03:

-----------------------------------------------------

DS_KEY:

CALLDS_DELAY

JNBK4,$

LCALLDSSET

实时时间设定子程序

K1为加键、K2为减键、K3为选择键

SET_TIME:

MOVR1,#8EH;

写保护寄存器

MOVR0,#00H;

允许写入

MOVR1,#80H;

MOVR0,#80H;

停止振荡器工作

SETBTR0

K001:

CALLTIME_DELAY;

校时

JNBK3,K001;

K3为位移键

K010:

CALLCHULI

JNB0AH,KH01

MOV54H,7FH;

送入熄灭符

MOV55H,7FH

JMPKH02

KH01:

MOV54H,74H;

送实时值

MOV55H,75H;

KH02:

CALLDISP

CALLTIME_DISPLAY

JNBK1,K011A

JNBK2,K011B

JNBK3,K002

JMPK010

K011A:

ADDA,#01H

DAA

MOV42H,A

XRLA,#24H

JNZK012A

MOV42H,#00H

K012A:

MOVR1,#84H;

MOVR0,42H

CALLTIME_DELAY

K011B:

XRLA,#00H

JZK012B

SETBC;

求补运算

ADDCA,#99H;

加99

SUBBA,#01H;

减去减数

ADDA,42H;

加被减数

DAA;

十进制调整

MOV42H,A;

JNZK012C

K012B:

MOV42H,#23H

K012C:

-------------------------------------------------

K002:

校分

JNBK3,K002;

K020:

JNB0AH,KM01

MOV52H,7FH;

MOV53H,7FH

JMPKM02

KM01:

MOV52H,72H;

MOV53H,73H;

KM02:

JNBK1,K021A

JNBK2,K021B

JNBK3,K003

JMPK020

K021A:

MOV41H,A

XRLA,#60H

JNZK022A

MOV41H,#00H

K022A:

MOVR1,#82H;

MOVR0,41H

---------------------------------------------------

K021B:

JZK022B

ADDA,41H;

MOV41H,A;

JNZK022C

K022B:

MOV41H,#59H

K022C:

K003:

CALLDATE_DELAY;

校日

JNBK3,K003;

K030:

JNB0AH,KR01

MOV60H,7FH;

MOV61H,7FH

JMPKR02

KR01:

MOV60H,76H;

MOV61H,77H;

KR02:

JNBK1,K031A

JNBK2,K031B

JNBK3,K004

JMPK030

K031A:

MOV43H,A

XRLA,#32H

JNZK032A

MOV43H,#00H

K032A:

MOVR1,#86H;

写日寄存器

MOVR0,43H

CALLDATE_DELAY

K031B:

JZK032B

ADDA,43H;

JNZK032C

K032B:

MOV43H,#31H

K032C:

K004:

校月

JNBK3,K004;

K040:

JNB0AH,KC01

MOV62H,7FH;

MOV63H,7FH

JMPKC02

KC01:

MOV62H,78H;

MOV63H,79H;

KC02:

JNBK1,K041A

JNBK2,K041B

JNBK3,K005

JMPK040

K041A:

MOV44H,A

XRLA,#13H

JNZK042A

MOV44H,#00H

K042A:

MOVR1,#88H;

写月寄存器

MOVR0,44H

K041B:

JZK042B

ADDA,44H;

MOV44H,A;

JNZK042C

K042B:

MOV44H,#12H

K042C:

-----------------------------------------------

K005:

校年

JNBK3,K005;

K050:

JNB0AH,KY01

MOV64H,7FH;

MOV65H,7FH

JMPKY02

KY01:

MOV64H,7AH;

MOV65H,7BH;

KY02:

MOVR0,#DATE_DA

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