6位7段数码管时钟显示汇编程序
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CPL A
MOV P0,A
RET
TAB:
DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH
DELAY1MS:MOV R7,#04H；延时程序
D1: MOV R6,#7DH
DJNZ R6,$
DJNZ R7,D1
RET
END
CJNE A,#60H,RETURN
MOV 41H,#00H
MOV A,#01H
ADD A,40H
DA A
MOV 40H,A
CJNE A,#24H,RETURN
\
MOV 40H,#00H
RETURN:
SETB TR0
POP Acc
POP PSW
RETI
SEG:MOV DPTR,#TAB；查表程序
MOVC A,@A+DPTR
6位7段数码管时钟显示汇编程序6位程序汇编显示程序汇编程序七段数码管7段数码管数码管6位7段数码管显示
ORG 0000H
AJMPMAIN
ORG 000BH
AJMP IT0P
ORG 0040H
MAIN:;主程序
MOV P0,#0FFH;数码管初始状态都是8
<
MOV P1,#0FFH；选中所有的数码管
MOV SP,#60H
ACALL SEG
ACALL DELAY1MS
CLR
MINUTEGE: SETB
MOV A,41H
ANL A,#0FH
ACALL SEG
{
ACALL DELAY1MS
CLR
MINUTESHI:SETB
MOV A,41H
SWAP A
ANL A,#0FH
ACALL SEG
ACALL DELAY1MS
!
CLR
LOOP:
ACALL DISPLAY；调用显示子程序
AJMPLOOP
DISPLAY:；数码管显示子程序
SECONDGE: SETB
&
MOV A,42H
ANL A,#0FH
ACALL SEG
ACALL DELAY1MS
CLR
SECONDSHI:SETB
MOV A,42H
SWAP A
@
ANL A,#0FH
CLR TR0
MOV TH0,#3CH
MOV TL0,#0B0H
DJNZ 30H,RETURN
MOV 30H,#14H
MOV A,#01H
)
ADD A,42H
DA A
MOV 42H,A
CJNE A,#60H,RETURN
MOV 42H,#00H
MOV A,#01H
ADD A,41H
DA A
*
MOV 41H,A
MOV TMOD,#01H
MOV IE,#82H
MOV 30H,#14H；存放定时循环次数单元20次
MOV 40H,#00H；存放时的数据单元
MOV 41H,#00H；存放分的数据单元
MOV 42H,#00H；存放秒的数据单元
、
MOV TH0,#3CH
MOV TL0,#0B0H；定时50ms*20
SETB TR0
HOURGE: SL SEG
ACALL DELAY1MS
CLR
HOURSHI: SETB
—
MOV A,40H
SWAP A
ANL A,#0FH
ACALL SEG
ACALL DELAY1MS
CLR
RET
IT0P:；中断服务子程序
—
PUSH PSW
PUSH Acc
MOV P0,A
RET
TAB:
DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH
DELAY1MS:MOV R7,#04H；延时程序
D1: MOV R6,#7DH
DJNZ R6,$
DJNZ R7,D1
RET
END
CJNE A,#60H,RETURN
MOV 41H,#00H
MOV A,#01H
ADD A,40H
DA A
MOV 40H,A
CJNE A,#24H,RETURN
\
MOV 40H,#00H
RETURN:
SETB TR0
POP Acc
POP PSW
RETI
SEG:MOV DPTR,#TAB；查表程序
MOVC A,@A+DPTR
6位7段数码管时钟显示汇编程序6位程序汇编显示程序汇编程序七段数码管7段数码管数码管6位7段数码管显示
ORG 0000H
AJMPMAIN
ORG 000BH
AJMP IT0P
ORG 0040H
MAIN:;主程序
MOV P0,#0FFH;数码管初始状态都是8
<
MOV P1,#0FFH；选中所有的数码管
MOV SP,#60H
ACALL SEG
ACALL DELAY1MS
CLR
MINUTEGE: SETB
MOV A,41H
ANL A,#0FH
ACALL SEG
{
ACALL DELAY1MS
CLR
MINUTESHI:SETB
MOV A,41H
SWAP A
ANL A,#0FH
ACALL SEG
ACALL DELAY1MS
!
CLR
LOOP:
ACALL DISPLAY；调用显示子程序
AJMPLOOP
DISPLAY:；数码管显示子程序
SECONDGE: SETB
&
MOV A,42H
ANL A,#0FH
ACALL SEG
ACALL DELAY1MS
CLR
SECONDSHI:SETB
MOV A,42H
SWAP A
@
ANL A,#0FH
CLR TR0
MOV TH0,#3CH
MOV TL0,#0B0H
DJNZ 30H,RETURN
MOV 30H,#14H
MOV A,#01H
)
ADD A,42H
DA A
MOV 42H,A
CJNE A,#60H,RETURN
MOV 42H,#00H
MOV A,#01H
ADD A,41H
DA A
*
MOV 41H,A
MOV TMOD,#01H
MOV IE,#82H
MOV 30H,#14H；存放定时循环次数单元20次
MOV 40H,#00H；存放时的数据单元
MOV 41H,#00H；存放分的数据单元
MOV 42H,#00H；存放秒的数据单元
、
MOV TH0,#3CH
MOV TL0,#0B0H；定时50ms*20
SETB TR0
HOURGE: SL SEG
ACALL DELAY1MS
CLR
HOURSHI: SETB
—
MOV A,40H
SWAP A
ANL A,#0FH
ACALL SEG
ACALL DELAY1MS
CLR
RET
IT0P:；中断服务子程序
—
PUSH PSW
PUSH Acc